Power supply control signal generating circuit

Details Power supply control signal generating circuit Power supply control signal generating circuit

2007-12-18

2010-06-29

Fureman, Jared J (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

C307S125000, C307S130000, C307S131000, C363S049000

Reexamination Certificate

active

07745960

ABSTRACT:
A power supply control signal generating circuit includes a connector, a switch, a transistor, and an input-output (I/O) controller. The connector includes a first pin and a grounded second pin. The switch has two terminals respectively coupled to the first pin and the second pin of the connector. The transistor has its base coupled to the first pin of the connector and a power supply via a first resistor, its collector coupled to the power supply via a second resistor, and its emitter grounded. The I/O controller has an input terminal coupled to the collector of the transistor, and outputs a power supply control signal at the output terminal.

REFERENCES:
patent: 4277824 (1981-07-01), Alberkrack
patent: 4398098 (1983-08-01), Minchey
patent: 7173350 (2007-02-01), Okitsu et al.
patent: 7215044 (2007-05-01), Mistry et al.
patent: 7288857 (2007-10-01), Bartholomew et al.
patent: 2008/0037186 (2008-02-01), Xiao et al.
patent: 2008/0252281 (2008-10-01), Yan et al.
patent: 2008/0284377 (2008-11-01), Chen et al.

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