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:
Aug. 28, 1990
Filed:
Dec. 20, 1989
Applicant:
Inventors:
Alfred L Sartwell, Jericho, VT (US);
Endre P Thoma, Colchester, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323280 ; 307263 ; 3072968 ; 320-1 ; 330253 ;
Abstract
An improved voltage regulator system is provided which includes a differential amplifier, an output transistor having a control electrode coupled to an output of the differential amplifier and a current carrying electrode fed back to an input of the amplifier, an input control transistor having a first current carrying electrode connected to the control electrode of the output transistor and a second current carrying electrode connected to a point of fixed potential and means for selectively applying a control signal to a control electrode of the input control transistor.