Power supply control method and corresponding circuit

Details Power supply control method and corresponding circuit Power supply control method and corresponding circuit

1997-02-28

1998-09-22

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

327544, 363100, H02M 542

Patent

active

058123865

ABSTRACT:
A power supply control circuit generates DC power output intermittently at predetermined intervals during a power saving mode of operation, so as to save power. The power supply control circuit includes an AC power circuit for receiving AC power and for outputting the AC power for a predetermined time; a DC power generator connected to the AC power circuit for converting the AC power into DC power; and a controller receiving a power-on/off signal generated from a power switch, for generating a first power control signal of a first logic state in response to the power-on signal and for generating a second power control signal alternating between the first logic state and a second logic state in response to the power-off signal. The second power control signal alternates between the first and second logic states at predetermined intervals.

REFERENCES:
patent: 5650924 (1997-07-01), Huh
patent: 5652504 (1997-07-01), Bangerter

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