| 摘要 |
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 |
