Dual power supply system

Details Dual power supply system Dual power supply system

2007-09-12

2009-02-24

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

Reexamination Certificate

active

07495356

ABSTRACT:
An exemplary dual power supply system includes a first sensor connected to a first power supply, a second sensor connected to a second power supply, a selection switch, a control circuit, and a relay switch. Each of the output terminals of the first sensor, the second sensor, and the selection switch are connected to a corresponding input terminal of the control circuit. The first and the second power supplies are connected to an electronic device via the relay switch. A control terminal of the relay switch is coupled to an output terminal of the control circuit for selectively coupling the first or the second power supply to the electronic device according to a control signal generated by the control circuit.

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patent: 6653751 (2003-11-01), Teh Lo
patent: RE38625 (2004-10-01), Galm

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