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:
Mar. 30, 2004
Filed:
Jun. 06, 2002
Applicant:
Inventor:
Douglas Robert Farrenkopf, Campbell, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 7/612 ;
U.S. Cl.
CPC ...
H03K 7/612 ;
Abstract
A bootstrap capacitor low voltage prevention circuit and method to control the same is provided. When a low voltage situation is detected the bootstrap capacitor is charged. An over voltage protection circuit is included that prevents the circuit from staying in an over voltage situation for a long period of time.