Push-pull output is most popular output stage for op-amps and audio power amplifiers.
New tutorial:
and simulation
are ready :-)
Push-pull output is most popular output stage for op-amps and audio power amplifiers.
New tutorial:
and simulation
are ready :-)
"Patrick Chung"
** Too many errors and misleading claims to even know where to start.Push pull output stages can operate in class A, B or AB - the latter being by far the most common.
Each output device amplifies an input signal of one polarity ONLY if the load is resistive.
The efficiency of an ideal class B output stage varies from zero to 78.5% at full power.
The efficiency of an ideal class A output stage varies from zero to 50% at full power.
So both are horribly inefficient at low power.
... Phil
Assuming you consider it a voltage amplifier. As a current amplifier or a transconductance amplifier the one polarity restriction would still apply (and in fact must apply for class B unless the individual devices can somehow carry a current flow in the reverse direction).
Not having read the article, I'll assume the rest of your points are valid.
George
"George Cornelius"
** Input "signals" are normally voltages and the OP's schem makes this the case too. ** How nice of you.Try learning to read stuff .
... Phil
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