Hey everyone!
I've been searching for a couple of days for an explanation of how the negative feedback on the circuit below reduces the cross over distortion.
I understand the overall function of the push pull output and how the opamp will adjust it's output until the power output is the correct value to equalise the two opamp inputs.
I can't quite wrap my head around the part when both transistors are off. I've ran simulations and know that the output of the opamp " rushes through" the dead zone. But I cant find an explanation as to how it knows which way to drive it's output to compensate. All I've managed to find is, "the opamp is magic and just knows what to do to reach equilibrium".
If anyone could help it would be much appreciated. Thanks!
I've been searching for a couple of days for an explanation of how the negative feedback on the circuit below reduces the cross over distortion.
I understand the overall function of the push pull output and how the opamp will adjust it's output until the power output is the correct value to equalise the two opamp inputs.
I can't quite wrap my head around the part when both transistors are off. I've ran simulations and know that the output of the opamp " rushes through" the dead zone. But I cant find an explanation as to how it knows which way to drive it's output to compensate. All I've managed to find is, "the opamp is magic and just knows what to do to reach equilibrium".
If anyone could help it would be much appreciated. Thanks!