[Exam problem for an instrumentation course]
Can anyone help me understand how this circuit works? I'm not too familiar with power circuits... This somewhat reminds of a BJT class B amplifier (but the diodes are not connected to the base), not sure if they are related or not. I also don't quite understand what the OpAmp adds to the circuit.
The problem asked for a sketch of the DC voltage transfer characteristic, but any elucidation related to the function of this circuit will help.
Thank you in advance.