Power supply interruption circuit for an audio power amplifier

Details Power supply interruption circuit for an audio power amplifier Power supply interruption circuit for an audio power amplifier

1993-06-16

1994-11-15

Sikes, William L.

Amplifiers

With semiconductor amplifying device

Including protection means

330297, 330207P, 327322, 327538, H03F 102, H03F 304, H02H 720, G11B 7125

Patent

active

053652010

ABSTRACT:
This invention provides an automatic current interruption to protect the audio power amplifier circuitry when current conditions above the capacity of the power amplifier are encountered. The circuit monitors the current supplied to the power amplifier and utilizes a transistor to interrupt power amplifier output. Power output is latched in its interrupted state until reset and is capable of quickly and effectively shutting down power supply output.

REFERENCES:
patent: 3898532 (1975-08-01), Frank
patent: 4057767 (1977-11-01), Laupman
patent: 4296278 (1981-10-01), Cullison et al.
patent: 4355341 (1982-10-01), Kaplan
patent: 4427951 (1984-01-01), Amada et al.
patent: 4484150 (1984-11-01), Carver
patent: 4486720 (1984-12-01), Hirano
patent: 4631713 (1986-12-01), Romeas et al.

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