Control circuit for power transistors in a voltage regulator

Details Control circuit for power transistors in a voltage regulator Control circuit for power transistors in a voltage regulator

1997-12-04

2000-03-21

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327540, 323316, G05F 110

Patent

active

060407360

ABSTRACT:
A voltage-regulator circuit with a low voltage drop uses a DMOS power transistor driven by a charge pump. The control circuit includes two feedback loops: a first feedback loop having a high gain and accuracy but low response speed, and a second feedback loop having a wide passband and fast response speed, but low gain.

REFERENCES:
patent: 4358728 (1982-11-01), Hashimoto
patent: 4803612 (1989-02-01), Skovmand
patent: 5191278 (1993-03-01), Carpenter
patent: 5365118 (1994-11-01), Wilcox
patent: 5404053 (1995-04-01), Poma et al.
patent: 5412309 (1995-05-01), Ueunten
patent: 5552697 (1996-09-01), Chan
patent: 5721485 (1998-02-01), Hsu et al.
patent: 5910924 (1999-06-01), Tanaka et al.
Walt Jung and James Wong, "Analog Circuits Bypass Single Supply Design Constraints," Electrical Design News , Jun. 10, 1993, pp. 137-148.

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