Low-voltage driven, audio signal amplifying apparatus and a port

Details Low-voltage driven, audio signal amplifying apparatus and a port Low-voltage driven, audio signal amplifying apparatus and a port

1995-08-15

1997-03-11

Mullins, James B.

Amplifiers

Signal feedback

Plural amplifier channels

330107, 330110, 330124R, 330294, 330295, 381 28, 381 98, 381121, H03F 134, H03F 368

Patent

active

056105550

ABSTRACT:
The apparatus includes output stage amplifiers for receiving the respective outputs of preamplifiers provided in correspondence to the left and right channels in a stereo system. Negative feedback circuits are provided in the respective output stage amplifiers for reducing the amount of low-band negative feedback. Switch circuits are turned on in response to feedback signals from the respective negative feedback circuits for supplying the feedback signals at the input to the output stage amplifiers.

REFERENCES:
patent: 4363001 (1982-12-01), Suzuki et al.

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