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如图1:仿真正常。输入波形为50Hz正弦波。运放电源已加旁路电容。 |
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如图1:仿真正常。输入波形为50Hz正弦波。运放电源已加旁路电容。 |
您是用的PCB板还是搭的面包板?即使PCB板,如果不合理的layout,以及反馈电阻自带的电容,PCB走线的寄生电容都可引起信号振荡。