Constant voltage regulator

Details Constant voltage regulator Constant voltage regulator

1997-08-28

1999-03-23

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327540, 323315, G05F 110, G05F 316

Patent

active

058865713

ABSTRACT:
A constant voltage circuit obtains an accurate constant voltage output by reducing the influence of channel length modulation effect of a MOS transistor. A current mirror circuit having two P-channel MOS transistors and two N-channel MOS transistors is added in addition to a main circuit having three P-channel MOS transistors, two N-channel MOS transistors and two resistors. The part of the voltage of the main circuit is input to the current mirror circuit, the output of the current mirror circuit is fed back to the main circuit, and a constant voltage is obtained as the output of the main circuit.

REFERENCES:
patent: 4327321 (1982-04-01), Suzuki et al.
patent: 5173656 (1992-12-01), Seevinck et al.
patent: 5373226 (1994-12-01), Kimura
patent: 5510750 (1996-04-01), Cho
patent: 5512855 (1996-04-01), Kimura
patent: 5594382 (1997-01-01), Kato et al.

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