Audio amplifier turn-off control circuit

Details Audio amplifier turn-off control circuit Audio amplifier turn-off control circuit

1994-11-10

1997-12-30

Sikes, William L.

Amplifiers

Combined with automatic amplifier disabling switch means

381 94, 381120, H03F 114, H04B 1500, H03B 2100

Patent

active

057035288

ABSTRACT:
A circuit comprising a transistor which, when supply is turned off, locks the output of the audio amplifier to the supply line, the potential of which is reduced gradually by a filter capacitor, so that the output voltage follows the supply voltage with the same slope, and is so controlled by the filter capacitor, thus eliminating undesired noise ("popping") at the output caused by electric transients in the audio amplifier.

REFERENCES:
patent: 3840820 (1974-10-01), Kawada
patent: 3992677 (1976-11-01), Tsurushima
patent: 4112385 (1978-09-01), Kusumi
patent: 4181895 (1980-01-01), Yoshida
patent: 4315221 (1982-02-01), Numata et al.
patent: 4371841 (1983-02-01), Eckert et al.
patent: 4390847 (1983-06-01), Yamada et al.
patent: 4788508 (1988-11-01), Kawai
patent: 5059919 (1991-10-01), Kinoshita
patent: 5199079 (1993-03-01), Anderson et al.
patent: 5255094 (1993-10-01), Yong et al.
patent: 5307025 (1994-04-01), Colvin et al.
patent: 5414386 (1995-05-01), Adachi et al.
patent: 5420535 (1995-05-01), Nebuloni

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