Power supply saving system for an electronic device

Details Power supply saving system for an electronic device Power supply saving system for an electronic device

2011-08-02

2011-08-02

Nguyen, Matthew V (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C361S139000

Reexamination Certificate

active

07990744

ABSTRACT:
A power supply saving system includes a power input interface, a power output interface, an alternating current/direct current (AC/DC) converter, a relay, a relay driving circuit, a trigger, and a timing sequence circuit. The AC/DC converter is capable of transforming the AC power signal to direct current (DC) power to supply to the relay, the relay driving circuit, the trigger, and the timing sequence circuit. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn on the relay to connect the power input interface to the power output interface when the timing sequence circuit receives a power-on signal. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn off the relay to cut off connection between the power input interface and the power output interface when the timing sequence circuit receives a power-off signal.

REFERENCES:
patent: 4350337 (1982-09-01), Knauer et al.
patent: 5812386 (1998-09-01), Youn
patent: 6515379 (2003-02-01), Nojima et al.
patent: 7523328 (2009-04-01), Seo
patent: 2009/0230781 (2009-09-01), Hung et al.

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