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如何区分共发射极和共集电极
更新时间: 2020-09-24 00:00:00  

区分共发射极和共集电极的方法如下:

从交流通路看,共射级电路输入端B和E输出端C和E。共集电极输入端输入端为B和C输出端为E和C。从输出端来看,负载如果是接在集电极和地之间的为共射级电路。接在发射极和地之间的为共集电极电路。从直流通路上来看都是共发射极电路,最大区别就是输出电容的和电阻的位置不同。如果是共发射极电路那么这两个元件要接在三极管的集电极上输出,如果是共集电极电路这两个元件就接在三极管的发射极上。

关键词: 如何 区分 发射极 集电极

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