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  <title>抄板、PCB抄板、PCB设计、芯片解密等PCB技术知识介绍</title>
  <link>http://blog.tom.com/pcbljy01</link>
  <description><![CDATA[龙人PCB抄板公司PCB设计工作室提供抄板、PCB抄板、PCB设计、芯片解密IC解密和SMT加工服务 ]]></description>
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		<title><![CDATA[ PCB抄板 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4748.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"><strong>PCB</strong></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><strong>抄板</strong>的说法一：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://www.pcbon.net/" target="_blank"><font face="Times New Roman">PCB抄板</font></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也即</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">克隆，是</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计的逆向工程。是先将</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线路板上的元器件拆下来做成</span><span lang="EN-US"><font face="Times New Roman">BOM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单，将空板扫描成图片经抄板软件处理还原成</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板图文件；将</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板图文件送到</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制板厂做出板子</span><span lang="EN-US"><font face="Times New Roman">(PCBA)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，再打上元件（根据</span><span lang="EN-US"><font face="Times New Roman">BOM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单采购到相应元器件）就是与原</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路板一摸一样的</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路板了。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">通过</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板技术可以完成任何电子产品仿制、电子产品克隆。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板也叫改板，就是对设计出来的</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板进行反向技术研究。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板的说法二：</span></p>
<p style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" align="left"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板乃是提供电子零组件安装与插接时主要的支撑体，经特定的电路设计，将连接电子零组件之线路绘制成配线图形，再将此图案制作成胶片，然后在铜箔层板上经过图形显像、钻孔、电镀、蚀刻等加工过程，制成所需</span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板，故</span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板乃是组装电子零件之前的基板。此产品之主要功能便是将各种电子零组件，藉由</span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板所形成之电路板设计，达成中继传输之目的，以使各项零组件之功能得以发挥。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">　　</span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板是以绝缘材料辅以导体配线所形成的结构性元件。在制成最终产品时，其上会安装积体电路、电晶体、二极体、被动元件（如：电阻、电容、连接器等）及其他各种各样的电子零件。藉著导线连通，可以形成电子讯号连结及应有机能。因此，</span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: Arial; LETTER-SPACING: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">pcb</span><span style="COLOR: black; FONT-FAMILY: 宋体; LETTER-SPACING: 0.4pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: Arial">抄板是一种提供元件连结的平台，用以承接联系零件的基的。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关的主题文章：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://pcbljy.blog.ccidnet.com/blog-htm-itemid-1233106-do-showone-uid-57070.html"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">加密技术及<span lang="EN-US">流行加密算法</span></span></span></a></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://hi.baidu.com/pcbljy/blog/item/d3cbee43801bbe1573f05dd0.html"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板过程中最重要的环节</span></span><font face="Times New Roman">—</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板测试</span></span></a></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://hi.baidu.com/pcbljy01/blog/item/1bd3d1513b95cf1e377abe38.html"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">中国</span></span><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">反向技术研究的核心技术：</span></span><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板技术</span></span></a></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://blog.csdn.net/pcbljy01/archive/2008/10/18/3095221.aspx"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">传真机工作原理及传真机电路板抄板</span></span></a></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><a href="http://www.pcbon.net/PCBChaoBan/index.asp"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">精密</span></span><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板，线路板抄板</span></span></a></span></p> ]]></description>
		<eb:creationDate>2009-03-20 16:19:25</eb:creationDate>
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		<title><![CDATA[ pcb抄板的几种调试方法汇总 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4718.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板的几种调试方法汇总</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">本文的关键词：</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://www.pcbwork.net/"><font face="Times New Roman">pcb</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a> <a href="http://www.pcbwork.net/pcbcb.asp"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">龙人</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">工作室为广大客户提供专业</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://pcblab.zke360.com/"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，电路板抄板，</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计，</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://www.icinf.com/"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">芯片解密</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，单片机解密，转原理图等服务，深圳龙人</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">PCB</font></span></b><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt">工作室</span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以过硬的技术，优质的服务，深受客户好评，为</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://wwwpcb.xinwen520.net/"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计行业之典范企业。详情请登陆：</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://www.pcbwork.net/"><font face="Times New Roman">www.pcbwork.net</font></a> </span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">对于一个新设计的</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">PCB</font></span></b><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt">板</span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，调试起来往往会遇到一些困难，特别是当板子比较大、元件比较多时，往往无从下手。但如果掌握好一套合理的调试方法，调试起来将会事半功倍。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://mcuiclr.wtianx.com/"><font face="Times New Roman">pcb</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调试步骤一：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">对于刚拿回来的新</span><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt">板子</span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，我们首先要大概观察一下，板上是否存在问题，例如是否有明显的裂痕，有无短路、开路等现象。如果有必要的话，可以检查一下电源跟地线之间的电阻是否足够大。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://pcbljy01.blog.hexun.com/"><font face="Times New Roman">pcb</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调试步骤二：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">然后就是安装元件了。相互独立的模块，如果您没有把握保证它们工作正常时，最好不要全部都装上，而是一部分一部分的装上（对于比较小的电路，可以一次全部装上），这样容易确定故障范围，免得到时遇到问题时，无从下手。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一般来说，可以把电源部分先装好，然后就上电检测电源输出电压是否正常。如果在上电时您没有太大的把握（即使有很大的把握，也建议您加上一个保险丝，以防万一），可考虑使用带限流功能的可调稳压电源。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">先预设好过流保护电流，然后将稳压电电源的电压值慢慢往上调，并监测输入电流、输入电压以及输出电压。如果往上调的过程中，没有出现过流保护等问题，且输出电压也达到了正常，则说明电源部分</span><span lang="EN-US"><font face="Times New Roman">OK</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。反之，则要断开电源，寻找故障点，并重复上述步骤，直到电源正常为止。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><b style="mso-bidi-font-weight: normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><a href="http://pcblm.i.ifensi.com/"><font face="Times New Roman">pcb</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调试步骤三：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">接下来逐渐安装其它模块，每安装好一个模块，就上电测试一下，上电时也是按照上面的步骤，以避免因为设计错误或</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和安装错误而导致过流而烧坏元件。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">寻找故障的办法一般有下面几种：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">①测量电压法。首先要确认的是各芯片电源引脚的电压是否正常，其次检查各种参考电压是否正常，另外还有各点的工作电压是否正常等。例如，一般的硅三极管导通时，</span><span lang="EN-US"><font face="Times New Roman">BE</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">结电压在</span><span lang="EN-US"><font face="Times New Roman">0.7V</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">左右，而</span><span lang="EN-US"><font face="Times New Roman">CE</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">结电压则在</span><span lang="EN-US"><font face="Times New Roman">0.3V</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">左右或者更小。如果一个三极管的</span><span lang="EN-US"><font face="Times New Roman">BE</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">结电压大于</span><span lang="EN-US"><font face="Times New Roman">0.7V</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（特殊三极管除外，例如达林顿管等），可能就是</span><span lang="EN-US"><font face="Times New Roman">BE</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">结就开路。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">②信号注入法。将信号源加至输入端，然后依次往后测量各点的波形，看是否正常，以找到故障点。有时我们也会用更简单的办法，例如用手握一个镊子，去碰触各级的输入端，看输出端是否有反应，这在音频、视频等放大电路中常使用（但要注意，热底板的电路或者电压高的电路，不能使用此法，否则可能会导致触电）。如果碰前一级没有反应，而碰后一级有反应，则说明问题出在前一级，应重点检查。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">③当然，还有很多其它的寻找故障点的方法，例如看、听、闻、摸等。“看”就是看元件有无明显的机械损坏，例如破裂、烧黑、变形等；“听”就是听工作声音是否正常，例如一些不该响的东西在响，该响的地方不响或者声音不正常等；“闻”就是检查是否有异味，例如烧焦的味道、电容电解液的味道等，对于一个有经验的电子维修人员来说，对这些气味是很敏感的；“摸”就是用手去试探器件的温度是否正常，例如太热，或者太凉。一些功率器件，工作起来时会发热，如果摸上去是凉的，则基本上可以判断它没有工作起来。但如果不该热的地方热了或者该热的地方太热了，那也是不行的。一般的功率三极管、稳压芯片等，工作在</span><span lang="EN-US"><font face="Times New Roman">70</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">度以下是完全没问题的。</span><span lang="EN-US"><font face="Times New Roman">70</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">度大概是怎样的一个概念呢？如果你将手压上去，可以坚持三秒钟以上，就说明温度大概在</span><span lang="EN-US"><font face="Times New Roman">70</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">度以下（注意要先试探性的去摸，千万别把手烫伤了）。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">好了，关于调试的问题，我们今天就暂时讲这么多，如果想要了解更多的调试方法和经验，可以去找一些家用电器维修的书来看看，一个好的设计人员，首先应该是一个好的维修人员。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p>&nbsp;</p> ]]></description>
		<eb:creationDate>2009-03-06 16:50:18</eb:creationDate>
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		<title><![CDATA[ PCB抄板实战技巧与方法概要 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4681.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">&nbsp;&nbsp;&nbsp; 电子产品的轻薄小巧化发展，致使电路板的布局也越趋紧凑抄板，</span><span lang="EN-US"><font face="Times New Roman">3mil</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的线宽与线距及高频板应用已非常普遍。面对日益精密的电路板，传统的菲林尺等抄板手段</span><b style="mso-bidi-font-weight: normal"><span lang="EN-US"><a href="http://www.pcbwork.net/"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">已不能保证其精度与效率。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　下面为大家介绍一种最方便最高效精准的抄板方法，只需要你稍有</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板基础就能轻易掌握。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　要准备什么</span><span lang="EN-US"><font face="Times New Roman">?</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一台普通扫描仪，你的电脑抄板，安装一个</span><span lang="EN-US"><font face="Times New Roman">Quickpcb2005</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">程序，够了。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　先简单介绍下抄板流程：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">扫描电路板图片</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">运行</span><span lang="EN-US"><font face="Times New Roman">Quickpcb2005</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">程序</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在文件菜单中调入扫描的电路板图片</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">这个软件提供了测量工具和计算器，直接在扫描后有彩色图片上放置任意元素</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄完顶层，打开层设置菜单，关闭顶层，在文件菜单中调入底层图片</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">依次抄出其它内层</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">存出</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板文件，完成抄板</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　以一块双面板为例来说：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　我们先扫描线路板的上下表层，存出两张</span><span lang="EN-US"><font face="Times New Roman">BMP</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图片。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　打开</span><span lang="EN-US"><font face="Times New Roman">Quickpcb2005</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件</span><span lang="EN-US"><font face="Times New Roman">”“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开底图</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，打开一张扫描图片。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">Quickpcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">里的图标和快捷键与</span><span lang="EN-US"><font face="Times New Roman">PROTELpcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板非常相似。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　比如我们用</span><span lang="EN-US"><font face="Times New Roman">PAGEUP</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">放大屏幕，看到焊盘，按</span><span lang="EN-US"><font face="Times New Roman">PP</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">放置一个焊盘，看到线按</span><span lang="EN-US"><font face="Times New Roman">PT</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">走线</span><span lang="EN-US"><font face="Times New Roman">……</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">就像小孩描图一样，在这个软件里描画一遍，点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">保存</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">生成一个</span><span lang="EN-US"><font face="Times New Roman">B2P</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的文件。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　然后我们再点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件</span><span lang="EN-US"><font face="Times New Roman">”“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开底图</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，打开另一层的扫描彩图</span><span lang="EN-US"><font face="Times New Roman">;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　再点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件</span><span lang="EN-US"><font face="Times New Roman">”“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，打开前面保存的</span><span lang="EN-US"><font face="Times New Roman">B2P</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件，我们看到刚</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板，叠在这张图片之上</span><span lang="EN-US"><font face="Times New Roman">——</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">同一张抄板，孔在同一位置</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板，只是线路连接不同。所以我们按</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项</span><span lang="EN-US"><font face="Times New Roman">”——“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层设置</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，在这里关闭显示顶层的线路和丝印</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板，只留下多层的过孔。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　顶层的过孔与底层图片上的过孔在同一位置，现在我们再象童年时描图一样，描出底层的线路就可以了</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板。再点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">保存</span><span lang="EN-US"><font face="Times New Roman">”——</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">这时的</span><span lang="EN-US"><font face="Times New Roman">B2P</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件就有了顶层和底层两层的资料了。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这时我们点</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件</span><span lang="EN-US"><font face="Times New Roman">”“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">导出为</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件抄板</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，就可以得到一个有两层资料的</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板文件，我们可以再改板或再出原理图或直接生产。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　如果是四层、六层、八层，又要如何处理呢</span><span lang="EN-US"><font face="Times New Roman">?</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　其实四层就是重复抄两个双面，六层就是重复抄三个双面</span><span lang="EN-US"><font face="Times New Roman">……</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，多层之所以让人望而生畏，是因为我们无法看到其内部的走线。一块精密的多层，我们怎样看到其内层乾坤呢</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板</span><span lang="EN-US"><font face="Times New Roman">?——</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">分层。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　现在分层的办法有很多，有药水腐蚀、刀具剥离等，但很容易把层分过头，丢失资料。经验告诉我们，砂纸打磨是最准确的。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　当我们抄完</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板的顶底层后，抄板一般都是用砂纸打磨的办法，磨掉表层显示内层</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">砂纸就是五金店出售的普通砂纸，一般平铺</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，然后按住砂纸，在</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板上均匀磨檫</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果板子很小，也可以平铺砂纸，用一根手指按住</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在砂纸上磨擦</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。要点是要铺平，这样才能磨得均匀。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　丝印与绿油一般一擦就掉抄板，铜线与铜皮就要好好擦几下。一般来说，蓝牙板几分钟就能擦好，内存条大概要十几分钟</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当然力气大，花的时间会少一点</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">力气小花的时间就会多一点。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　磨板是目前分层用得最普遍的方案，也是最经济的了。咱们可以找块废弃的抄板试一下，其实磨板没什么技术难度，只是有点枯燥，要花点力气，完全不用担心会把板子磨穿磨到手指头抄板。</span><span lang="EN-US"><br>
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<span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">本文出自：</span><span lang="EN-US"><a href="http://www.pcbwork.net/"><font face="Times New Roman">www.pcbwork.net</font></a> </span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2009-02-20 10:54:12</eb:creationDate>
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		<title><![CDATA[ 反推PCB原理图秘技大曝光 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4680.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 26.25pt; mso-char-indent-count: 2.5"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</span><b style="mso-bidi-font-weight: normal"><u><span lang="EN-US"><a href="http://www.pcbwork.net/"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">反向技术</span></span></a></span></u></b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">研究中，反推原理图是指依据</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件图反推出或者直接根据产品实物描绘出</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路图，旨在说明线路板原理及工作情况。并且，这个电路图也被用来分析产品本身的功能特征。而在正向设计中，一般产品的研发要先进行原理图设计，再根据原理图进行</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计。</span></p>
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<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　无论是被用作在反向研究中分析线路板原理和产品工作特性，还是被重新用作在正向设计中的</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计基础和依据，</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">原理图都有着特殊的作用。那么，根据文件图或者实物，怎样来进行</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">原理图的反推，反推过程有该注意那些细节呢？</span></p>
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<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　一、合理划分功能区域</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　在对一块完好的</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路板进行原理图的逆向设计时，合理划分功能区域能够帮工程师减少一些不必要的麻烦，提高绘制的效率。一般而言，一块</span><span lang="EN-US"><a href="http://www.pcbcb.com/"><font face="Times New Roman">PCB</font></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板上功能相同的元器件会集中布置，以功能划分区域可以在反推原理图时有方便准确的依据。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　但是，这个功能区域的划分并不是随意的。它需要工程师对电子电路相关知识有一定的了解。首先，找出某一功能单元中的核心元件，然后根据走线连接可以顺藤摸瓜的找出同一功能单元的其他元件，形成一个功能分区。功能分区的形成是原理图绘制的基础。另外，在这一过程中，不要忘记巧妙利用电路板上的元器件序号，它们可以帮助您更快的进行功能分区。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　二、找对基准件</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这个基准件也可以说是在进行原理图绘制之初所借助的主要部件，在确定基准件之后，根据这些基准件的引脚进行绘制，能够在更大程度上保证原理图的准确性。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　对于工程师而言，基准件的确定不是很复杂的事情，一般情况下，可以选择在电路中起主要作用的元器件作为基准件，它们一般体积较大、引脚较多，方便绘制的进行，如集成电路、变压器、晶体管等等，都可以作为合适的基准件。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　三、正确区分线路，合理绘制布线</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　对于地线、电源线、信号线的区分，同样需要工程师有相关的电源知识、电路连接知识、</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布线知识等等。这些线路的区分，可以从元器件连接情况、线路铜箔宽度以及电子产品本身的特征等方面进行分析。</span></p>
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<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　在布线绘制中，为避免线路交叉与穿插，对地线可以大量使用接地符号，各种线路可以使用不同颜色的不同线条保证清晰可辨，对各种有元器件还可以运用专用标志，甚至可以将单元电路分开绘制，最后再进行组合。</span></p>
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<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　四、掌握基本框架，借鉴同类原理图</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　对于一些基本电子电路的框架构成和原理图画法，工程师需要熟练掌握，不仅要能对一些简单、经典的单元电路的基本组成形式进行直接绘制，还要能形成电子电路的整体框架。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　另一方面，不要忽视，同一类型的电子产品在原理图上具有一定的相似性，工程师可以根据经验的积累，充分借鉴同类电路图来进行新的产品原理图的反推。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　五、核对与优化</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　原理图绘制完成之后，还要经过测试与核对环节才能说</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">原理图的逆向设计结束。对</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">分布参数敏感的元件的标称值需要进行核对优化，根据</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件图，将原理图进行对比分析与核对，确保原理图与文件图的完全一致。</span></p>
<p style="MARGIN: 0cm 0cm 0pt">&nbsp;</p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　若在核对中发现原理图布局上与要求不符，还将要进行原理图的调整，直到达到完全的合理与规范，准确和清晰。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
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		<title><![CDATA[ 变频器跳闸原因分析与检查技巧 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4459.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、过载跳闸及原因分析</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　电动机能够旋转，但运行电流超过了额定值，称为过载。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　过载的基本反映是：电流虽然超过了额定值，但超过的幅度不大，一般也不形成较大的冲击电流。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　过载的主要原因</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）机械负荷过重，负荷过重的主要特征是电动机发热，并可从显示屏上读取运行电流来发现。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）三相电压不平衡，引起某相的运行电流过大，导致过载跳闸，其特点是电动机发热不均衡，从显示屏上读取运行电流时不一定能发现（因显示屏只显示一相电流）。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）误动作，变频器内部的电流检测部分发生故障，检测出的电流信号偏大，导致跳闸。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　检查方法</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）检查电动机是否发热，如果电动机的温升不高，则首先应检查变频器的电子热保护功能预置得是否合理，如变频器尚有余量，则应放宽电子热保护功能的预置值。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　如果电动机的温升过高，而所出现的过载又属于正常过载，则说明是电动机的负荷过重。这时，首先应能否适当加大传动比，以减轻电动机轴上的负荷。如能够加大，则加大传动比。如果传动比无法加大，则应加大电动机的容量。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）检查电动机侧三相电压是否平衡，如果电动机侧的三相电压不平衡，则应再检查变频器输出端的三相电压是否平衡，如也不平衡，则问题在变频器内部</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　如变频器输出端的电压平衡，则问题在从变频器到电动机之间的线路上，应检查所有接线端的螺钉是否都已拧紧，如果在变频器和电动机之间有接触器或其他电器，则还应检查有关电器的接线端是否都已拧紧，以及触点的接触状况是否良好等。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　如果电动机侧三相电压平衡，则应了解跳闸时的工作频率：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　如工作频率较低，又未用矢量控制（或无矢量控制），则首先降低</span> <span lang="EN-US"><font face="Times New Roman">U/f</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">比，如果降低后仍能带动负载，则说明原来预置的</span> <span lang="EN-US"><font face="Times New Roman">U/f</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">比过高，励磁电流的峰值偏大，可通过降低</span> <span lang="EN-US"><font face="Times New Roman">U/f</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">比来减小电流；如果降低后带不动负载了，则应考虑加大变频器的容量；如果变频器具有矢量控制功能，则应采用矢量控制方式。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、过电流跳闸及原因分析</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　变频器的过电流跳闸又分短路故障、运行过程中跳闸和升、降速过程中跳闸等情况。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　短路故障</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span> <span lang="EN-US"><font face="Times New Roman">1</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）故障特点</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">a</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）第一次跳闸有可能在运行过程中发生，但如复位后再起动，则往往一升速就跳闸。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">b</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）具有很大的冲击电流，但大多数变频器已经能够进行保护跳闸，而不会损坏。由于保护跳闸十分迅速，难以观察其电流的大小。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span> <span lang="EN-US"><font face="Times New Roman">2</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）判断与处理</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　第一步，首选要判断是否短路。为了便于判断，在复位后再起动前，可在输入侧接入一个电压表，重新启动时，电位器从零开始缓慢旋动，同时，注意观察电压表。如果变频器的输出频率刚上升就立即跳闸，且电压表的指针有瞬间回</span><span lang="EN-US"><font face="Times New Roman">“&nbsp;0 ”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的迹象，则说明变频器的输出端已经短路或接地。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　第二步，要判断是在变频器内部短路，还是在外部短路。这时，应将变频器输出端的接线脱开，再旋动电位器，使频率上升，如仍跳闸，说明变频器内部短路；如不再跳闸，则说明是变频器外部短路，应检查从变频器到电动机之间的线路，以及电动机本身。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　轻载过电流负载很轻，却又过电流跳闸。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这是变频调速所特有的现象。在</span> <span lang="EN-US"><font face="Times New Roman">V/F</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">控制模式下，存在着一个十分突出的问题：就是在运行过程中，电动机磁路系统的不稳定。其基本原因在于：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　低频运行时，为了能带动较重的负载，常常需要进行转矩补偿（即提高</span> <span lang="EN-US"><font face="Times New Roman">U/f</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">比，也叫转矩提升）。导致电动机磁路的饱和程度随负载的轻重而变化。这种由电动机磁路饱和引起的过电流跳闸，主要发生在低频、轻载的情况下。解决方法：反复调整</span> <span lang="EN-US"><font face="Times New Roman">U/f</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">比。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　重载过电流</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）故障现象</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　有些生产机械在运行过程中负荷突然加重，甚至</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">卡住</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，电动机的转速因带不动而大幅下降，电流急剧增加，过载保护来不及动作，导致过电流跳闸。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）解决方法</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">a</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）首先了解机械本身是否有故障，如果有故障，则修理机器。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">b</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）如果这种过载属于生产过程中经常可能出现的现象，则首先考虑能否加大电动机和负载之间的传动比？适当加大传动比，可减轻电动机轴上的阻转矩，避免出现带不动的情况。如无法加大传动比，则只有考虑增大电动机和变频器的容量了。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　升速或降速中过电流</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这是由于升速或降速过快引起的，可采取的措施有如下：</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）延长升（降）速时间</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　首先了解根据生产工艺要求是否允许延长升速或降速时间，如允许，则可延长升（降）速时间。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）准确预置升（降）速自处理（防失速）功能</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">变频器对于升、降速过程中的过电流，设置了自处理（防失速）功能。当升（降）电流超过预置的上限电流时，将暂停升（降）速，待电流降至设定值以下时，再继续升（降）速。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳龙人</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板工作室</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳最专业的抄板公司</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">专业提供</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">芯片解密</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">印刷电路板</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路板抄板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">改板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">样机调试</span><span lang="EN-US"><font face="Times New Roman">,IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解密及</span><span lang="EN-US"><font face="Times New Roman">bom</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">清单制作一条龙服务！</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">联系地址</span><span lang="EN-US"><font face="Times New Roman">:</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳市福田区</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">华强北</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">世界贸易广场</span><span lang="EN-US"><font face="Times New Roman">B</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">座</span><span lang="EN-US"><font face="Times New Roman">12F/13F</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">邮</span><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">编</span><span lang="EN-US"><font face="Times New Roman">:518033</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电</span><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">话</span><span lang="EN-US"><font face="Times New Roman">:0755-83676393<span style="mso-spacerun: yes">&nbsp;</span> 25327575</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">魏</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小姐</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> 0755-83690800<span style="mso-spacerun: yes">&nbsp;</span> 83662100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">余小姐</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">Email:pcblab@126.com</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">手机</span><span lang="EN-US"><font face="Times New Roman">: 13148818895</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">详细信息欢迎登陆</span> <span lang="EN-US"><font face="Times New Roman">http://www.dmpcb.cn</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或来电咨询</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2008-11-07 16:43:28</eb:creationDate>
		<eb:modificationDate></eb:modificationDate>
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		<title><![CDATA[ 几款创新型工业级PCB制板设备 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4458.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、手动裁板机</span> <span lang="EN-US"><font face="Times New Roman">QB-1</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线路板制板设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　脚踏剪板机体积小</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">重量轻</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">外形美观、操作简便、结构紧凑合理，采用滑块导轨，踏板不工作时可收折起，不占空间。配有压料装置，剪切质量高，剪刀材料采用</span><span lang="EN-US"><font face="Times New Roman">9CrSi</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，剪切锋利，耐磨性高，并且移动方便，广泛用于金属薄板的剪切。可剪板厚度：</span><span lang="EN-US"><font face="Times New Roman">0.1-3mm</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可剪板最大宽度：</span><span lang="EN-US"><font face="Times New Roman">720mm PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打样设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　二、数控钻孔机</span> <span lang="EN-US"><font face="Times New Roman">HW-K185<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">最小绝缘间距：</span><span lang="EN-US"><font face="Times New Roman">0.1mm(4mils)<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">钻孔最小孔径：</span><span lang="EN-US"><font face="Times New Roman">0.15mm(6mils)<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">传动分辨率：</span><span lang="EN-US"><font face="Times New Roman">0.25um(0.01mil)<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加工幅面：</span><span lang="EN-US"><font face="Times New Roman">320mm</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">200mm</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">研发性线路板制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主轴转速：</span><span lang="EN-US"><font face="Times New Roman">10000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">～</span><span lang="EN-US"><font face="Times New Roman">62000RPM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无级可调</span><span lang="EN-US"><font face="Times New Roman">;PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线路板制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">钻孔能力：</span><span lang="EN-US"><font face="Times New Roman">150</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">次</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">分钟</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">8.X/Y</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">驱动定位系统：三相步进电机</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双面线路板制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">9.Z</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">向驱动：步进电机。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">10.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">消耗功率：</span><span lang="EN-US"><font face="Times New Roman">120/240V</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">50 60Hz/200VA<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　三、化学沉铜系统</span> <span lang="EN-US"><font face="Times New Roman">HOWVIEW-CT80 PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">化学制板</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备尺寸：</span><span lang="EN-US"><font face="Times New Roman">1800</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">650</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">650</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">研发性</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">生产设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源功率：</span><span lang="EN-US"><font face="Times New Roman">4.1KW 220V<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">功用：分十二个槽体，能自动恒温，自动化</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">智能化程度高</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">贯孔导通率</span><span lang="EN-US"><font face="Times New Roman">100%,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">导通电阻不超过</span><span lang="EN-US"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">毫欧</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">研发性</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">性能：最小沉铜孔径达</span><span lang="EN-US"><font face="Times New Roman">0.3mm PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制版设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">适用于：双面</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板的过孔化</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">特点：自动控温、加热快、沉铜效果好</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双面</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">按照工业生产的流程分十二槽对电路板进行沉铜工艺，不采用导电胶或者黑胶这种工艺，避免了孔内壁疏松，使随后电镀的铜与孔壁的结合不紧密，容易脱落。同时避免，小孔容易被胶体堵塞，不能正常导通。不会因采用胶体使过孔的电阻率发生变化。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　四、化学镀铜系统</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小型双面</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><font face="Times New Roman">HOWVIEW-DTC100<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">工作面积：</span><span lang="EN-US"><font face="Times New Roman">450*450<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备尺寸：</span><span lang="EN-US"><font face="Times New Roman">700</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">镀槽</span><span lang="EN-US"><font face="Times New Roman">)<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源采用脉冲电源，电镀过程中没有毛刺，孔壁光滑。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源功率：</span><span lang="EN-US"><font face="Times New Roman">1.5KW 220V<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备特点：摆动式、悬挂式</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">功用：</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双面板的全板、图形电镀铜及预浸。</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小型双面线路板制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、采用大功率隔离变压器，安全性好。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">8</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、摆动式电镀能很好切割电力线，保证镀层质量，尤其是过孔镀层质量</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">这很关键</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">9</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、脉冲电源和桥式整流使整机性能更趋合理，避免电镀产生毛刺，使孔壁更光滑。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">10</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、两槽设计，自带预浸槽进一步保证电镀质量根可靠。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　五、覆膜机</span> <span lang="EN-US"><font face="Times New Roman">HOWVIEW-FM100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线路板制版设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以完成湿膜的涂敷</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">工作面积：</span><span lang="EN-US"><font face="Times New Roman">350MM*350MM<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　六、烘箱</span> <span lang="EN-US"><font face="Times New Roman">HOWVIEW-HX100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小型实验</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">性能：温度、时间可调，线路板感光油墨烘干、固化等</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备尺寸：</span><span lang="EN-US"><font face="Times New Roman">1200</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">700</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">1200<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有效装料尺寸：</span><span lang="EN-US"><font face="Times New Roman">700</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">700<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">温度范围：</span><span lang="EN-US"><font face="Times New Roman">0</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">—</span><span lang="EN-US"><font face="Times New Roman">250</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">℃</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源：</span><span lang="EN-US"><font face="Times New Roman">6.2KW 220V<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加热方式：远红外热循环</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有效装料尺寸：</span><span lang="EN-US"><font face="Times New Roman">700</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">700<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">8.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">适用于：</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">阻焊、字符、油墨等的烘烤</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　七、自动显影机</span> <span lang="EN-US"><font face="Times New Roman">HOWVIEW-XY100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小型试验</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备尺寸：</span><span lang="EN-US"><font face="Times New Roman">900</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">650</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">1080mm<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有效显影面积：</span><span lang="EN-US"><font face="Times New Roman">450</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600mm<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源：</span><span lang="EN-US"><font face="Times New Roman">2.8KW 380V(220V)<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显影精度：</span><span lang="EN-US"><font face="Times New Roman">4mil<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显影方式：摆动喷淋式</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">性能：显影均匀，速度快，精度高</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">适用：</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">干湿膜显影，感光组焊油墨显影。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　八、曝光机</span> <span lang="EN-US"><font face="Times New Roman">HOWVIEW-PG100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小型线路板生产线</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设备尺寸：</span><span lang="EN-US"><font face="Times New Roman">900</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">1500</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">1300<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">光源：</span><span lang="EN-US"><font face="Times New Roman">3KW</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">光碘镓灯，波长峰值</span><span lang="EN-US"><font face="Times New Roman">310-440nm<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">曝光有效面积：</span><span lang="EN-US"><font face="Times New Roman">400</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</span><span lang="EN-US"><font face="Times New Roman">600mm<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">方式：单双面曝光</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电源：功率</span><span lang="EN-US"><font face="Times New Roman">3.8KW</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，电压</span><span lang="EN-US"><font face="Times New Roman">380V</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">220V<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">适用：</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">干湿膜曝光、感光阻焊油墨曝光。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">冷却方式：空冷</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">轴流风机</span><span lang="EN-US"><font face="Times New Roman">),</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">保证碘镓灯使用寿命更长。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">8.</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该设备采用碘稼灯作为曝光的光源，不像台式曝光机采用紫外灯管。碘稼灯能量更强，更均匀，曝光效果好，图案更清晰，无毛刺。所有用于工业生产的曝光机均采用这种光源，另外，该设备具有台式曝光机所没有的对版灯，使菲林队为更准确。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　九、小型化学制版设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　该套设备是为了满足电路板的小批量生产、科研、教学、实训及打样的需求，同时，还可以满足学校课题设计、毕业设计、电子设计竞赛以及实验和试验的过程中，做单个或个别电路板的加工。</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为满足单板打样制作及批量工业级快速双面板生产加工制作</span><span lang="EN-US"><font face="Times New Roman">;<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　满足学生电子设计制作，</span><span lang="EN-US"><font face="Times New Roman">EDA</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">实践、电子设计大赛、课程设计、毕业设计、创新实践活动等综合性、设计性、创新性实验要求</span><span lang="EN-US"><font face="Times New Roman">;<br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　设备特点：</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　方便快捷</span><span lang="EN-US"><font face="Times New Roman">-</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该套设备制作一块</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板仅需要几十分钟，让设计人员的灵感立刻变成实物，同时也避免了传统做法过程中，单块电路板的价格高、成本高和周期长的缺陷。快速</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制作设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　多功能性—该套设备中的核心设备—电路板刻制机可制作数字，模拟，数模混合电路板</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也可加工射频微波电路板</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以刻制铝质，塑料面板，铭牌，可以刻制聚酰亚胺柔性材料，在微波电路上挖盲槽</span><span lang="EN-US"><font face="Times New Roman">;</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以准确控制深度雕铣材料，对已装配元件的电路板进行修理，分切等，其强大的功能得到了众多用户所认可和满意。教学</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制板设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　高精度</span><span lang="EN-US"><font face="Times New Roman">-</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">最小导线宽度：</span><span lang="EN-US"><font face="Times New Roman">0.1mm(4mils);</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">最小绝缘间距：</span><span lang="EN-US"><font face="Times New Roman">0.1mm(4mils);</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">钻孔最小孔径：</span><span lang="EN-US"><font face="Times New Roman">0.15mm(6mils);</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">传动分辨率：</span><span lang="EN-US"><font face="Times New Roman">0.25um(0.01mil)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，完全彰显了系出名门的品质。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　直观性强</span><span lang="EN-US"><font face="Times New Roman">-</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">整个制作过程清晰可见，更加适合教学演示的要求。教学电路板制版设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　高稳定性</span><span lang="EN-US"><font face="Times New Roman">-</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该套设备中核心设备为德国进口设备，经久耐用，特别是具有全自动换刀功能，使加工的整个过程更加精确和方便。教学电路板制板设备</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　高性价比</span><span lang="EN-US"><font face="Times New Roman">-</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">整套设备配置合理，价格优惠，是质优价廉的绝佳组合。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳龙人</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板工作室</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳最专业的抄板公司</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">专业提供</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">芯片解密</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">印刷电路板</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电路</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板抄板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">改板</span><span lang="EN-US"><font face="Times New Roman">,PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">样机调试</span><span lang="EN-US"><font face="Times New Roman">,IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解密及</span><span lang="EN-US"><font face="Times New Roman">bom</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">清单制作一条龙服务！</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">联系地址</span><span lang="EN-US"><font face="Times New Roman">:</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">深圳市福田区</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">华强北</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">世界贸易广场</span><span lang="EN-US"><font face="Times New Roman">B</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">座</span><span lang="EN-US"><font face="Times New Roman">12F/13F</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">邮</span><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">编</span><span lang="EN-US"><font face="Times New Roman">:518033</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">电</span><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">话</span><span lang="EN-US"><font face="Times New Roman">:0755-83676393<span style="mso-spacerun: yes">&nbsp;</span> 25327575</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">魏</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小姐</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> 0755-83690800<span style="mso-spacerun: yes">&nbsp;</span> 83662100</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">余小姐</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">Email:pcblab@126.com</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">手机</span><span lang="EN-US"><font face="Times New Roman">: 13148818895</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">详细信息欢迎登陆</span> <span lang="EN-US"><font face="Times New Roman">http://www.dmpcb.cn</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或来电咨询</span></p> ]]></description>
		<eb:creationDate>2008-11-07 16:42:30</eb:creationDate>
		<eb:modificationDate></eb:modificationDate>
    </item>
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		<title><![CDATA[ 手机仿制技术大揭秘——手机板抄板 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4435.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">&nbsp;&nbsp; 目前品牌手机的仿制手机随处可见，大家对国内许多厂商都仿制国际品牌的手机现象已经是司空见惯，令人觉得震惊的是还处于新鲜滚烫状态的诺基亚</span><span lang="EN-US"><font face="Times New Roman">N96</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也竟然已经被仿制出来！甚至来自日本的夏普</span><span lang="EN-US"><font face="Times New Roman">920SH</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也难逃被克隆的命运！这些例子无不令消费者们震惊，当中包括对国内手机仿制能力的惊叹。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">那么到底手机是如何被仿制出来的呢？本文就为您揭开手机仿制技术的奥秘。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">首先让我们来看看手机的基本结构：</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">手机的结构可分为三部分，即射频处理部分、逻辑</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">音频部分以及输入输出接口部分。以下对这三部分作粗略介绍。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">射频部分：射频部分一般指手机射频接收与射频发射部分，主要电路包括：天线、天线开关、接收滤波、高频放大、接收本振、混频、中频、发射本振、功放控制、功放等。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、发送部分</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发部分包括带通滤波、中频、发射本振、射频功率放大器、发射滤波器、天线开关、天线等。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二、接收部分</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">接收部分包括天线、天线开关、高频滤波、高频放大、混频、中频滤波和中频放大等电路。对接收信号进行一级一级处理，最后得到推动听筒发声的音频信号。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解调大都在中频处理集成电路（</span><span lang="EN-US"><font face="Times New Roman">IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）内完成，解调后得到频率相同的模拟同相</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">正交信号，然后进入逻辑</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">音频处理部分进行后级的处理。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">逻辑</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">音频部分：包括逻辑处理和音频处理两个方面的内容。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、音频处理部分</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;</span> 1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发送音频处理过程。来自送话器的话音信号经音频放大集成模块放大后进行</span><span lang="EN-US"><font face="Times New Roman">A/D</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">变换、话音编码、信道编码、调制，最后送到射频发射部分进行下一步的处理。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;</span> 2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．接收音频处理过程。从中频输出的</span><span lang="EN-US"><font face="Times New Roman">RXI</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">RXQ</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">信号送到调制解调器进行解调，之后进行信道解码、</span><span lang="EN-US"><font face="Times New Roman">D/A</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">变换，再送到音频放大集成模块进行放大。最后，用放大的音频信号去推动听筒发声。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二、逻辑处理部分</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><span style="mso-spacerun: yes"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;</font></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">手机射频、音频部分及外围的显示、听音、送语、插卡等部分均是在逻辑控制的统一指挥下完成其各自功能。顺着前面讲的三种线中控制线的流向进行分析，可以弄清逻辑部分怎样对各部分进行功能控制。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">输入输出部分：输入输出部分在维修中主要指：显示、按键、振铃、听音、送话、卡座等部分，有时也称界面部分。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">简单点说，手机是由手机板加外壳组成，而手机板是由电路板组成，因此仿制手机的主要技术是手机板克隆即手机板抄板、手机电路板抄板、</span><span lang="EN-US"><a href="http://www.lrpcb.cn/"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（所谓</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板即是先将</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线路板上的元器件拆下来做成</span><span lang="EN-US"><font face="Times New Roman">BOM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单，将空板扫描成图片经抄板软件处理</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">见抄板步骤</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">还原成</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板图文件）。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有了</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板图文件及根据</span><span lang="EN-US"><font face="Times New Roman">BOM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单采购到的元器件就可以送制版厂制板，从而得到与原手机电路板一摸一样的手机板了，将手机板包装之后就完成手机仿制。</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2008-10-17 17:38:12</eb:creationDate>
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		<title><![CDATA[ PCB抄板价格影响因素及抄板报价方法 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4416.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><b style="mso-bidi-font-weight: normal"><span lang="EN-US"><font face="Times New Roman">PCB</font></span></b><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板价格影响因素及抄板报价方法</span><span lang="EN-US"><br style="mso-special-character: line-break">
<br style="mso-special-character: line-break"></span></b></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">影响</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板价格的因素有多种：</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板所用材料不同造成价格的多样性</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二、</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板所采用生产工艺的不同造成价格的多样性</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">三、</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板本身难度不同造成的价格多样</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">四、客户要求不同也会造成价格的不同</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">五、</span><span lang="EN-US"><font face="Times New Roman">pcb</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板厂家不同造成的价格多样性</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">六、付款方式不同造成的价格差异</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">七、区域不同造成价格的多样性</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">目前</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板行业内通用的报价办法是按照需要抄板的电路上的管脚（</span><span lang="EN-US"><font face="Times New Roman">PIN</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）数量以及结合</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板难易度进行计算的。</span></p>
<div align="center">
<table style="WIDTH: 60%; mso-cellspacing: 0cm" cellspacing="0" cellpadding="0" width="60%" border="0">
<tbody>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单面板</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">0.7</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">0.5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 1">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双面板</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">0.7</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">0.5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 2">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">四层板</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1.2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1.0</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 3">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">六层板</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1.8</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1.6</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 4">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">八层板</span></p>
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<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">2.0</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">1.8</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
<tr style="HEIGHT: 15pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes">
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 23%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="23%">
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">十二层板</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 33%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="33%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">3.2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
<td style="BORDER-RIGHT: #ece9d8; PADDING-RIGHT: 0.75pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; BORDER-LEFT: #ece9d8; WIDTH: 43%; PADDING-TOP: 0.75pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width="43%">
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">3.0</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元</span><span lang="EN-US"><font face="Times New Roman">/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">焊点</span></p>
</td>
</tr>
</tbody>
</table>
</div>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">温馨提示：为保障您的利益，在选择</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板公司的时候一定要找有实力的合法经营的抄板企业合作！您可以上当地的工商局网站查下与您合作的</span><span lang="EN-US"><font face="Times New Roman">PCB</font><a href="http://www.lrpcb.cn/"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">企业是否一注册！</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2008-09-26 18:42:23</eb:creationDate>
		<eb:modificationDate></eb:modificationDate>
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    <item>
		<title><![CDATA[ PCB抄板信号隔离技术 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4415.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抄板信号隔离技术</span></p>
<p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><span lang="EN-US"><a href="http://www.pcbinf.com/" target="_blank"><font face="Times New Roman">PCB</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">信号隔离技术是使数字或模拟信号在发送时不存在穿越发送和接收端之间屏障的电流连接。这允许发送和接收端外的地或基准电平之差值可以高达几千伏，并且防止可能损害信号的不同地电位之间的环路电流，主要应用在：</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）系统地的噪声比较大，容易使信号受损，隔离可将信号分离到一个干净的信号子系统地、电源中，保证隔离部分信号的可靠性，达到系统设计要求。</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）系统电压差非常大。比如在强电电路中，我们通常是通过隔离，将工作电压转化到</span><span lang="EN-US"><font face="Times New Roman">IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">允许的工作范围之内。</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）基准电平之间的电连接可产生一个对于操作人员不安全的电流通路。通过隔离将电流控制在安全范围之内。</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在隔离技术中，设计者根据被隔离信号种类的不同和隔离要求，来选择不同隔离器件是关键：</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）第一类隔离器件依赖于光发送器和接收器来跨越隔离屏障。主要有光耦合器（图</span><span lang="EN-US"><font face="Times New Roman">4-18</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）和隔离收发器</span><span lang="EN-US"><font face="Times New Roman">IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。通过光来隔断系统的电流，电容也避免电气上的干扰。这类器件用于数字信号。</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）模拟变压器，通过变压器的电磁感来耦合发送信号和接收信号（图</span><span lang="EN-US"><font face="Times New Roman">4-19</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）。变压器比较难制作，参数也很难精确控制，而且通常不可能制成</span><span lang="EN-US"><font face="Times New Roman">IC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，所以使用不是很方便。但线性化问题迫使模拟信号隔离采用变压器。</span><span lang="EN-US"><br>
<br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</span><span lang="EN-US"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）为了克服变压器使用的不方便，工程师采用调制载波使模拟信号跨越这个屏障。所以想出了用电容器电路来耦合调制信号以跨越屏障。作用在隔离屏障上的高转换率瞬态电压可作为单电容屏障器件的信号，开发出双电容差分电路以使误差最小。现在电容屏障技术已应用在数字和模拟隔离器件中。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2008-09-26 18:41:52</eb:creationDate>
		<eb:modificationDate></eb:modificationDate>
    </item>
    <item>
		<title><![CDATA[ 通用抄板软件PROTEL 99 使用手册 ]]></title>
		<link>http://blog.tom.com/pcbljy01/article/4392.html</link>
		<description><![CDATA[ <p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">通用</span><span lang="EN-US"><a href="http://www.pcbwork.net/"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US">抄板</span></span></a></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">软件</span><span lang="EN-US"><font face="Times New Roman">PROTEL 99</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使用手册</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">采用全新的管理方式，即数据库的管理方式。</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是在桌面环境下第一个以独特的设计管理和团队合作技术为核心的全方位的印制板设计系统。所有</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计文件都被存储在唯一的综合设计数据库中，并显示在唯一的综合设计编辑窗口。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">软件沿袭了</span><span lang="EN-US"><font face="Times New Roman">Protel</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以前版本方便易学的特点，内部界面与</span><span lang="EN-US"><font face="Times New Roman">Protel 98</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">大体相同，新增加了一些功能模块。</span><span lang="EN-US"><font face="Times New Roman">Protel</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">公司引进了德国</span><span lang="EN-US"><font face="Times New Roman">INCASES</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">公司的先进技术，在</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中集成了信号完整性工具，精确的模型和板分析，帮助你在设计周期里利用信号完整性分析可获得一次性成功和消除盲目性。</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">容易使用的特性就是新的</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">这是什么</span><span lang="EN-US"><font face="Times New Roman">”</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">帮助。按下任何对话框右上角的小问号，然后选择你所要的信息。现在可以很快地看到</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">特性的功能，然后用到设计中，按下状态栏末端的按钮，使用自然语言帮助顾问。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第一章　</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的安装</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计平台软硬件配置要求：</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">１、硬件配置</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　最低：</span><span lang="EN-US"><font face="Times New Roman">ntium II 233MHZ<br></font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">内存－</span><font face="Times New Roman"><span lang="EN-US">32M</span><br></font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　硬盘－</span><font face="Times New Roman"><span lang="EN-US">300M</span> </font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示器－</span><span lang="EN-US"><font face="Times New Roman">SVGA</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">15</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">〃</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　　　　　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　显示分辩率－</span><span lang="EN-US"><font face="Times New Roman">800×600<br></font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　建议配置：</span><span lang="EN-US"><font face="Times New Roman">CPU</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">－</span><span lang="EN-US"><font face="Times New Roman">Pentium II 300</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以上</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　　　　　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　内存－</span><font face="Times New Roman"><span lang="EN-US">128M</span> </font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">硬盘－</span><span lang="EN-US"><font face="Times New Roman">6G</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以上</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　　　　　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　显示器－</span><span lang="EN-US"><font face="Times New Roman">SVGA,17</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">〃以上</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　显示分辩率－</span><span lang="EN-US"><font face="Times New Roman">256</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">色，</span><span lang="EN-US"><font face="Times New Roman">1280×768<br></font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　只要是</span><span lang="EN-US"><font face="Times New Roman">1998</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">年以后所成立的计算机教室，或个人购买的计算机，几乎都超过以上标准！而现在几乎不可能买到这么差的个人计算机了。所以，这个要求也不算太高嘛！当然，愈好的设备易展现</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的雄风。</span> <span lang="EN-US"><font face="Times New Roman"><br>
2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、操作系统</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Ｍ</span><span lang="EN-US"><font face="Times New Roman">icrosoft Windows NT 4.0</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或以上版本（含中文版）。</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Ｍ</span><span lang="EN-US"><font face="Times New Roman">icrosoft Windows 98/95</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或以上版本（含中文版）。</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　　　　　　　　</span><span lang="EN-US"><font face="Times New Roman">PROTEL99</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">安装方法非常简单，只需双击光盘目录下的</span><span lang="EN-US"><font face="Times New Roman">Install.exe</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">即可。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第二章</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如何进行原理图设计</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">新建设计数据库文件</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　在</span><span lang="EN-US"><font face="Times New Roman">WINDOWS 95/98</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或</span><span lang="EN-US"><font face="Times New Roman">NT</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">界面下双击</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图标，点击</span><span lang="EN-US"><font face="Times New Roman">File(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中</span><span lang="EN-US"><font face="Times New Roman">new</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">项，新建设计</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数据库。</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　在</span><span lang="EN-US"><font face="Times New Roman">Browse</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项中选取需要存储的文件夹，然后点击</span><span lang="EN-US"><font face="Times New Roman">OK</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">即可建立自己的设计数据库。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">１、设计组（</span><span lang="EN-US"><font face="Times New Roman">Design Team</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　我们可以先在</span><span lang="EN-US"><font face="Times New Roman">Design Team</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中设定设计小组成员，</span><span lang="EN-US"><font face="Times New Roman">Protel 99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可在一个设计组中进行协同</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计，所有设计数据库和设计组特性都由设计组控制。定义组成员和设置他们的访问权</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">限都在设计管理器中进行，确定其网络类型和网络专家独立性不需要求助于网络管理员</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　无限制数量的设计组成员能同时访问相同的设计数据库。每个组成员都能看到什么文件</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当前是打开的以及谁在编辑，并能锁定文件以防止意外重写。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　访问设计数据库可以通过建立设计组成员和指定其权限来控制。设计组成员建立在成员</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件夹中。在成员文件夹中单击右键就会弹出浮动菜单，选择新成员。</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为保证设计安全，为管理组成员设置一个口令。这样如果没有注册名字和口令就不能打</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">开设计数据库。</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　提示：成员和成员权限只能由管理员建立。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、回收站（</span> <span lang="EN-US"><font face="Times New Roman">Recycle Bin</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　相当于</span><span lang="EN-US"><font face="Times New Roman">Windows</font></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中的回收站，所有在设计数据库中删除的文件，均保存在回收站中，可</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以找回由于误造作而删除的文件．</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">３、设计管理器（</span><span lang="EN-US"><font face="Times New Roman">Documents</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span><span lang="EN-US"><br></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">所有</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设计文件都被储存在唯一的综合设计数据库中，并显示在唯一的综合设计</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">编辑窗口。在</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中与设计的接口叫设计管理器。使用设计管理器，可以进行对设计文件的管理编辑、设置设计组的访问权限和监视对设计文件的访问。</span> <span lang="EN-US"><font face="Times New Roman"><br></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　组织设计文件</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">过去组织和管理</span><span lang="EN-US"><font face="Times New Roman">40</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个或更多的原理图、</span><span lang="EN-US"><font face="Times New Roman">PCB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">Gerber</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">Drill</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</span><span lang="EN-US"><font face="Times New Roman">BOM</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</span><span lang="EN-US"><font face="Times New Roman">DRC</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件，要花</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">费几天的时间，而</span><span lang="EN-US"><font face="Times New Roman">Protel99</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">把设计文件全部储存在唯一的设计数据库。</span></p>
<p style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">&nbsp;</font></span></p> ]]></description>
		<eb:creationDate>2008-09-08 17:19:30</eb:creationDate>
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