Audio amplifier switch-on control circuit

Details Audio amplifier switch-on control circuit Audio amplifier switch-on control circuit

1985-04-12

1987-01-20

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Noise or distortion suppression

Interpolation

381120, H03F 126

Patent

active

046385070

ABSTRACT:
A capacitor which is progressively chargeable in response to a switching on of the equipment, however brought about, is associated with an oscillating circuit with intervention threshold. As the load voltage of said capacitor increases the oscillating circuit shifts from a first to a second operating state, generating a switch-on current for the audio amplifier. The latter can be placed in stand-by condition by discharging to earth said capacitor by means of a suitable switch.

REFERENCES:
patent: 3965295 (1976-06-01), Evans
patent: 4339730 (1982-07-01), Yokoyama
patent: 4441086 (1984-04-01), Karlow
patent: 4448074 (1984-05-01), Schmidt
patent: 4453264 (1984-06-01), Hochstein
patent: 4472687 (1984-09-01), Kashiwagi
patent: 4502016 (1985-02-01), Siligoni

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