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如何做一个简单的pi电路
是pi开关电源电路吗
看一下这个链接吧
https://wenku.baidu.com/view/032a3d8649649b6649d74703.html
P就是比例,IC是积分。利用电阻可以组成比例,利用电阻电容可以组成积分。