Video cassette recorder power supply capable of breaking supply

Details Video cassette recorder power supply capable of breaking supply Video cassette recorder power supply capable of breaking supply

1993-09-17

1995-08-15

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

G11B 1512

Patent

active

054424941

ABSTRACT:
Disclosed herein is an improved VCR power supply capable of selectively breaking a dc supply voltage to an audio apparatus during its audio mute state set by a control unit. The improved power supply comprises a first transistor coupled to an upstream of the audio apparatus for selectively blocking the supply voltage; and a second transistor, in response to an audio mute control signal from the control unit, for controlling the selective breaking operation of the first transistor, thereby achieving a low consumption of electrical energy during the audio mute state.

REFERENCES:
patent: 3843838 (1974-10-01), Wanek
patent: 3973178 (1976-08-01), Pyles
patent: 4124873 (1978-11-01), Satoh et al.
patent: 5280632 (1994-01-01), Jung-Gon

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