Dual adjustable voltage regulators

Details Dual adjustable voltage regulators Dual adjustable voltage regulators

1997-06-04

1999-01-26

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

307 18, 307 24, 307 52, G05F 140, H02J 110

Patent

active

058642250

ABSTRACT:
A dual adjustable voltage regulator combining a DC--DC switching regulator with a linear regulator implemented on a single chip is disclosed. The invention provides switching circuitry that can select between a fixed output voltage level and a user-adjustable output voltage. The circuit further provides means to automatically detect and generate power supply voltage levels as required by the system.

REFERENCES:
patent: 4350891 (1982-09-01), Wuerflein
patent: 5412308 (1995-05-01), Brown
patent: 5550729 (1996-08-01), Wissell
patent: 5691630 (1997-11-01), Chosa
Maxim Dual-Output Power-Supply Controller for Notebook Computers, Rev. 1, May 1994.
Linear Technology Synchronous Regulator Controller for N-or-P Channel Mosfets, Initial Release, Feb. 1995.

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