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. 24, 1982
Filed:
Feb. 08, 1979
Applicant:
Inventor:
Robert A Blauschild, Los Altos, CA (US);
Assignee:
Signetics Corporation, Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323313 ; 323316 ; 323907 ; 307304 ; 357 41 ;
Abstract
A temperature stable voltage reference utilizes an enhancement field effect transistor and a depletion field effect transistor each connected in series with a current source. A differential amplifier has its input terminals separately connected between each of the field effect transistors and their respective current supplies. An input terminal of the field effect transistor is utilized as the reference voltage and is also connected to the gate of one of the field effect transistors, the gate of the other field effect transistor being connected to a reference potential.