Power control circuit

Details Power control circuit Power control circuit

2006-08-15

2008-11-04

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Condition responsive

C307S140000, C361S190000, C713S310000

Reexamination Certificate

active

07446438

ABSTRACT:
A power control circuit includes an electronic switch (20) interposed between a power unit (10) and an electronic device (30), a driving circuit (40) and a mechanical switch (50). The driving circuit receives a power-on signal from the mechanical switch, and signals the electronic switch to turn on and supply power to the electronic device in accordance with the power-on signal. The electronic device controls the driving circuit to maintain the electronic switch to be on and continue the power supply to the electronic device. The electronic device further receives a power-off signal from the mechanical switch, and signals the driving circuit to turn off the electronic switch and discontinues the power supply to the electronic device.

REFERENCES:
patent: 5790961 (1998-08-01), Ingram et al.
patent: 6081046 (2000-06-01), Jang et al.
patent: 6369466 (2002-04-01), Murphy
patent: 6621182 (2003-09-01), Akazawa
patent: 6625739 (2003-09-01), Kobayashi

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