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:
Oct. 30, 1979
Filed:
Jul. 03, 1978
Applicant:
Inventors:
Daniel D Culmer, Sunnyvale, CA (US);
Ronald W Russell, Sunnyvale, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323-4 ; 307297 ; 323 19 ;
Abstract
A pair of transistors are operated at different current densities so as to develop a differential base to emitter potential. This potential is used as a reference in a negative feedback stabilization circuit which passes a current that is regulated by the potential. The circuit can also regulate the currents flowing in a plurality of additional current sources and sinks connected thereto.