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:
Feb. 11, 1986
Filed:
Apr. 02, 1984
Applicant:
Inventor:
Barry B Heim, Mesa, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323313 ;
Abstract
An integrated voltage regulator is provided that includes an NPN shunt transistor that improves regulation and reduces chip size. A regulator circuit is coupled between an output node and a second supply voltage terminal for biasing an output emitter follower transistor. A voltage divider is coupled between a first supply voltage terminal and the second supply voltage terminal and biases the NPN shunt transistor. The NPN shunt transistor is coupled between the output node and the second supply voltage terminal for shunting excess current from the output node as the voltage on the first supply voltage terminal increases.