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:
Jul. 07, 1981
Filed:
Jun. 01, 1979
Applicant:
Inventor:
Ury Priel, Cupertino, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323313 ; 323314 ; 323907 ;
Abstract
Two output voltages are generated in response to the output of a power supply. One output is referenced to the positive supply terminal V.sub.CC and the other output is referenced to the negative supply terminal V.sub.EE.. A first .DELTA.V.sub.BE reference circuit provides for the production of the pair of voltages which are temperature compensated. A second .DELTA.V.sub.BE reference circuit operates a voltage regulator which supplies the first .DELTA.V.sub.BE reference. The resulting two output voltages are temperature compensated and substantially independent of power supply voltage variations.