FIELD: audio signal amplification.
SUBSTANCE: inserted in amplifier circuit are at least two additional-polarity transistors 4, 5 having common drain; control means 2 enabling generation of control signal 13 common for gates of mentioned transistors 4, 5; and output circuit 14 connected to source of mentioned transistors. Description of invention also includes power amplifier incorporating voltage feedback interruption provision that uses mentioned circuit.
EFFECT: enhanced circuit efficiency and sound amplification quality.
8 cl, 2 dwg
