Could you please help me with the amplifier circuit below. What configuration is this? Some basics about its operation and what are the advantages/ disadvantages of such a configuration?
It's a switching circuit rather than an amplifier in the usual sense of the term. The gates of the two FETs are being driven in anti-phase by a 125kHz square-wave signal. When one FET is switched on the other is switched off. This results in the two ends of the LC series combination being pulled alternately high by R1 or R2 and low by FET 1 or FET 2.