Hey guys please help me on this.... The text says that we have to alter the open loop gain in order to compensate an amplifier. The open loop gain should be reduced below unity before sufficient phase shift develop to cause oscillation in the amplifier at higher frequencies.. My question is why they tell to alter the open loop gain...rather it should be closed loop gain..because i) Open loop gain(gain of op-amp without feedback) is constant..can’t be change. ii) Though parasitic capacitance and inductance may be present in the internal circuitry of op-amp (which causes frequency dependent phase shift)….but they are also present outside as well like a capacitive load and RC filter(delay) formed by feedback resistance and input capacitance. So we should alter the closed loop gain....shouldn't we?