Voltage regulator with differential current steering stage

Details Voltage regulator with differential current steering stage Voltage regulator with differential current steering stage

1996-04-16

1997-12-02

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323314, 323315, G05F 316

Patent

active

056940319

ABSTRACT:
An improved voltage regulator which can operate in a two-lead environment with a widely varying power supply is provided. The voltage regulator of the invention has an output circuit stage connected between a supply voltage and a reference voltage. A pass transistor, as one leg of a differential current steering stage, provides drive current to the output stage. A bandgap error amplifier is coupled between the reference voltage output and the pass transistor to shunt current from the pass transistor when the reference voltage varies from the desired voltage value.

REFERENCES:
patent: 4072870 (1978-02-01), Davis
patent: 4319179 (1982-03-01), Jett, Jr.
patent: 5453679 (1995-09-01), Rapp

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