Protection circuit

Details Protection circuit Protection circuit

1974-08-09

1976-01-06

Miller, J. D.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

317 33R, 330207P, H02H 328

Patent

active

039315479

ABSTRACT:
The amplitude is detected of both the input and output signals of the circuit (such as an audio amplifier) it is desired to protect. When, for example, a short circuit occurs across the load being driven, there is a sudden change in the ratio of these amplitudes and in response to this change, the signal to the output driver stage of the circuit is shunted to ground.

REFERENCES:
patent: 3102241 (1963-08-01), Johnstone
patent: 3200346 (1965-08-01), Young
patent: 3585514 (1971-06-01), Kubicz
patent: 3711763 (1973-01-01), Peterson
patent: 3754163 (1973-08-01), Sykes
patent: 3805088 (1974-04-01), Sugihara et al.

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