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【划重点】电源PCB布板的10个基本法则！

由 demi 提交于

<strong>电容模型</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51600-1.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>
<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51601-2.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>电容并联高频特性</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51602-3.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>电感模型</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51603-4.png&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>电感特性</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51604-5.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>
<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51605-6.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>镜象面概念</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51606-7.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>高频交流电流环路</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51607-8.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>过孔 (VIA) 的例子</strong>

<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51608-9.jpg&q…; alt="电源PCB布板的10个基本法则！"></center>

<strong>PCB板层分割</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51609-10.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>降压式(BUCK)电源：功率部分电流和电压波形</strong>

<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51610-11.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>降压式电源排版差的例子</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51611-12.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>电路等效图</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51612-13.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>PCB Trace - Via 电感估算</strong>

<center><img width="600" src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51613-14.jpg&…; alt="电源PCB布板的10个基本法则！"></center>
<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51614-15.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>焊盘(PAD)和旁路电容的放置</strong>

<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51615-16.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>降压式电源排版的例子</strong>

<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51616-17.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

<strong>降压式电源排版的例子</strong>

<center><img src="http://mcu.eetrend.com/files/2018-11/wen_zhang_/100015354-51617-18.jpg&…; alt="电源PCB布板的10个基本法则！"></center>

转自：<a href="https://mp.weixin.qq.com/s/IMHandXIaYI4Ft0IMYjRCw">电源研发精英圈</a&gt;