Electronic protection for power amplifier

Details Electronic protection for power amplifier Electronic protection for power amplifier

1975-02-04

1977-04-05

Miller, J D

Amplifiers

Miscellaneous

Amplifier protection means

361 88, H02H 720

Patent

active

040164608

ABSTRACT:
An overload protection circuit for an amplifier is disclosed in which a signal supply means connected with the input of the amplifier is deactivated when the output of the amplifier exceeds a given value. Transducer means of the optoelectrical type are connected with the output terminals of the amplifier for operating a bistable device such as an operational amplifier to deactivate the signal supply means as long as the overload voltage occurs. Timing capacitor means maintain the signal supply means de-activated for a given period of time after the overload condition is terminated.

REFERENCES:
patent: 3102241 (1963-08-01), Johnstone
patent: 3526810 (1970-09-01), Williams et al.
patent: 3533003 (1970-10-01), Plaszczynski et al.
patent: 3555358 (1971-01-01), Gibbs
patent: 3579042 (1971-05-01), Abend
patent: 3678291 (1972-07-01), Coe
patent: 3749936 (1973-07-01), Bell
patent: 3757243 (1973-09-01), Kimberly
patent: 3818274 (1974-06-01), DeWitte et al.
patent: 3898532 (1975-08-01), Frank
patent: 3912980 (1975-10-01), Crump et al.

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