Audio bridge circuit

Details Audio bridge circuit Audio bridge circuit

1979-05-29

1981-08-11

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330146, 330270, 330275, H03F 326

Patent

active

042836832

ABSTRACT:
A circuit responsive to applied audio signals for amplifying the same and providing the amplified signals across differential output terminals. The circuit comprising an audio amplifying section which is responsive to the audio input signals for amplifying the same and a feedback circuit connected across the output terminals for providing a feedback signal to the amplifier section to reduce any direct current offset voltage errors appearing across the output terminals to a minimum value. Additionally, the amplifier section includes circuitry for setting the quiescent voltage bias levels of the output terminals to a predetermined level and for providing common-mode rejection of voltage supply line ripple.

REFERENCES:
patent: 3983502 (1976-09-01), Wheatley, Jr.

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