Reference voltage circuit and method of generating a...

Details Reference voltage circuit and method of generating a... Reference voltage circuit and method of generating a...

2005-08-16

2005-08-16

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S544000, C323S313000

Reexamination Certificate

active

06930539

ABSTRACT:
A reference voltage circuit has a reference voltage source, a charge storage device and also switching devices, which enable occasional operation of the reference voltage source during an on-time period. A reference voltage generated by the reference voltage source during the on-time period is stored in analog form with the charge storage device for the duration of an off-time period. The reference voltage source draws an operating current only during the on-time period. The result is a reduction of the power consumption. During the generation of the reference voltage, the operating current of the reference voltage source is not reduced compared with conventional reference voltage circuits.

REFERENCES:
patent: 4075623 (1978-02-01), Futagawa et al.
patent: 5243271 (1993-09-01), Lommers
patent: 5703528 (1997-12-01), Nebuloni et al.
patent: 5796294 (1998-08-01), Perry
patent: 6737844 (2004-05-01), Trivedi et al.

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