
输出这样的直线是怎么回事,怎么让它输出波形
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输出这样的直线是怎么回事,怎么让它输出波形
您这里是直接输出0V是吗?
按照您这个原理图,Vout下拉接GND,隔直电容后输出Vout确实应该输出为0V。
您可以测试下这里的电压,Vin为0V,相当于接GND.那么R4和R2相当于并联。
红圈内的电压应该为3.3*(R2//R4)/(R1+R2//R4) 您可以仿真下输出是否满足这个计算公式。
