Reference voltage generating circuit

Details Reference voltage generating circuit Reference voltage generating circuit

2005-05-24

2005-05-24

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

C327S543000, C323S316000

Reexamination Certificate

active

06897714

ABSTRACT:
A semiconductor integrated circuit has an output end, an N-channel MOS transistor having the drain thereof connected to the output end, and a P-channel MOS transistor having the drain thereof connected to the output end. The semiconductor integrated circuit further has an operational amplifier having the non-inverting input terminal thereof connected to the output end, receiving a voltage at the inverting input terminal thereof, and having the output terminal thereof connected to the gate of the P-channel MOS transistor. In coordination with the P-channel MOS transistor, the operational amplifier operates so as to keep the voltage at the output end equal to the voltage fed thereto.

REFERENCES:
patent: 4763021 (1988-08-01), Stickel
patent: 4783607 (1988-11-01), Hsieh
patent: 5373226 (1994-12-01), Kimura
patent: 5495184 (1996-02-01), Des Rosiers et al.
patent: 5847556 (1998-12-01), Kothandaraman et al.
patent: 5942933 (1999-08-01), Yang
patent: 6111396 (2000-08-01), Lin et al.
patent: 6323630 (2001-11-01), Banba
patent: 61-172435 (1986-08-01), None

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