Switching power supply unit

Details Switching power supply unit Switching power supply unit

1997-06-30

1999-07-06

Nguyen, Matthew

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335, H02M 744

Patent

active

059204664

ABSTRACT:
An inexpensive power supply unit which may be used for video display devices is provided. The unit saves power when supplying power to a light load, such as during remote control standby. Power for a controller which controls each part of a video display device is supplied from the switching power supply. Power consumption of the switching power supply is reduced by extending an OFF period setting for the switching power supply when operation of a display drive circuit is turned off.

REFERENCES:
patent: 4292490 (1981-09-01), Bell, Jr. et al.
patent: 4812959 (1989-03-01), Driscoll et al.
patent: 5019953 (1991-05-01), Kawaberi et al.

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