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怎么求放大倍数
先帮楼主理论上分析分析。
左边由于虚短虚断特点，相当于50和49.9串联后直接接地了。因此，VIN+=0.5V1.
同样VOUT,=2*VIN-
因为VIN+==VIN-;
所以Vout=V1.
又由于输出后49.9和50串联，下面就看楼主算谁的电压电流了。
怎么求放大倍数