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反相放大电路同相端接法问题请教!

如题,书上说:同相端要接地,根据虚短虚断,运放反相输入端接近于地电位,即虚地。虚地的存在是反向放大电路在闭环工作状态下的重要特征。

那问题来了,我直接给同相端一个正向偏置电压(例如:2.5V),没有虚地了,那这个反向放电电路还能稳定工作吗?我仿真了下,可以工作,麻烦哪位大侠不吝赐教,谢谢!