不知道这个电路中R18和C37是哪种相位补偿方式?另外,我们给R4=210欧,R12=51欧,理论上电压放大倍数应该是4倍,可是实际测出的数据只有2倍,不知道是怎么回事?还望工程师能够帮忙解答一下!
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