Transistor Switching that is used to sense high current and high voltage


Joined Sep 17, 2013
What would happen if the difference between the two terminals are 0V?
If you directly connect the inverting and non-inverting inputs together you will almost certainly still get a non-zero (albeit small) output, due to the internal input offset voltage of the opamp (arising from chip manufacturing asymmetries) being multiplied by the opamp gain. You can add a small bias voltage, of appropriate polarity, to an input to compensate for the offset.