📄 pcb设计铜铂厚度、线宽和电流关系 -- 时间频率实验室.htm

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<P class=Label>标签： <A title=线宽和电流 
href="http://blog.ednchina.com/Label/çº¿å®½åçµæµ.aspx">线宽和电流</A>&nbsp;&nbsp;<A 
title=PCB电流与线宽 
href="http://blog.ednchina.com/Label/PCBçµæµä¸çº¿å®½.aspx">PCB电流与线宽</A>&nbsp;&nbsp;<A 
title=PCB的温度阻抗计算 
href="http://blog.ednchina.com/Label/PCBçæ¸©åº¦é»æè®¡ç®.aspx">PCB的温度阻抗计算</A>&nbsp;&nbsp;</P>
<H1><A 
href="http://blog.ednchina.com/tengjingshu/125149/message.aspx#">PCB设计铜铂厚度、线宽和电流关系</A></H1>
<P>
<P align=center><FONT 
size=4>*************************************************************************</FONT></P>
<P><FONT 
size=4>&nbsp;关于PCB线宽和电流的经验公式，关系表和软件网上都很多，本文把网上的整理了一下，旨在给广大工程师（当然包括自己啦<IMG 
alt=icon 
src="PCB设计铜铂厚度、线宽和电流关系 -- 时间频率实验室.files/12.gif">）在设计PCB板的时候提供方便。</FONT></P>
<P><FONT 
size=4>*************************************************************************</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt" align=center><B 
style="mso-bidi-font-weight: normal"><SPAN 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体"><SPAN lang=EN-US 
style="FONT-SIZE: 18pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">PCB</SPAN><SPAN 
style="FONT-SIZE: 18pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">设计铜铂厚度、线宽和电流关系</SPAN></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt" align=center><B 
style="mso-bidi-font-weight: normal"><SPAN 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体"><SPAN 
style="FONT-SIZE: 18pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"></SPAN></SPAN></B>&nbsp;</P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt" align=left><SPAN 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体"><SPAN 
style="FONT-SIZE: 18pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><FONT 
size=4>&nbsp;&nbsp;&nbsp; 
以下总结了网上八种电流与线宽的关系公式，表和计算公式，虽然各不相同（大体相近），但大家可以在实际的PCB板设计中，综合考虑PCB板的大小，通过电流，选择一个合适的线宽。</FONT></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt" align=left><SPAN 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体"><SPAN 
style="FONT-SIZE: 18pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><FONT 
size=4></FONT></SPAN></SPAN>&nbsp;</P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B 
style="mso-bidi-font-weight: normal"><SPAN 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体">一、</SPAN></B><B 
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US 
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">PCB</SPAN><B 
style="mso-bidi-font-weight: normal"><SPAN 
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电流与线宽</SPAN></B></SPAN></B></P>
<P class=MsoNormal 
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-layout-grid-align: none" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt"><o:p>&nbsp;</o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-layout-grid-align: none" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">PCB</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">载流能力的计算一直缺乏权威的技术方法、公式，经验丰富<SPAN 
lang=EN-US>CAD</SPAN>工程师依靠个人经验能作出较准确的判断。但是对于<SPAN 
lang=EN-US>CAD</SPAN>新手，不可谓遇上一道难题。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-layout-grid-align: none" 
align=left><SPAN lang=EN-US
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