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uaf42设计50hz陷波器

Other Parts Discussed in Thread: UAF42

uaf42设计50hz陷波器,原理图如下:

测试发现,中心频率准确的50hz,很正常,输入多大频率就输出多大频率,信号衰减也满足设计的要求。

就是所有频段的波形都会抖动很厉害,但是没有一点自激,不知道什么原因?

uaf42设计50h陷波器.TSC