The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1997
Filed:
Apr. 16, 1996
Applicant:
Inventor:
Silvo Stanojevic, Milpitas, CA (US);
Assignee:
Exar Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323313 ; 323314 ; 323315 ;
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.