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采用THS3001做两级级联可调移相器,第二级运放出现发烫现象。



如附图,我采用这两级移相,无输入信号只接上电源的时候前级正常后级放大器严重发烫,我去掉后级直接前级测试前级正常工作输出信号正常,当我去掉前级给后级通电后级轻微发烫,我移相的中心频率是16M,不知什么原因造成,希望各位解答,谢谢了。