Method of operating a low standby power system for a television

Details Method of operating a low standby power system for a television Method of operating a low standby power system for a television

1993-08-11

1995-05-09

Groody, James J.

Television

Receiver circuitry

Power supply

307 64, 365229, H04N 563

Patent

active

054144752

ABSTRACT:
A television receiver includes a microprocessor, a switched mode power supply and a storage capacitor. The storage capacitor supplies standby power to the microprocessor when the television receiver is off and the switched mode power supply is disabled. While the television receiver is off, the microprocessor monitors the capacitor voltage and turns on the switched mode power supply to recharge the capacitor when its voltage level falls to a predetermined minimum. The microprocessor turns off the switched mode power supply when the capacitor voltage indicates that the capacitor has been recharged.

REFERENCES:
patent: 3766403 (1973-10-01), Tsutsumi
patent: 4005344 (1977-01-01), Gaind et al.
patent: 4385264 (1983-05-01), Balaban et al.
patent: 4866525 (1989-04-01), Rodriguez-Cavazos et al.
patent: 4885522 (1989-12-01), Konopka
patent: 5175441 (1992-12-01), den Hollander
patent: 5272382 (1993-12-01), Heald et al.

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