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. 04, 2003
Filed:
Mar. 03, 2000
Applicant:
Inventors:
Anatoly Shteynberg, San Jose, CA (US);
Dimitry Goder, San Jose, CA (US);
Assignee:
Switch Power, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 ;
U.S. Cl.
CPC ...
H02H 7/00 ;
Abstract
Switching circuits including DC:DC converters of various topologies are provided with a soft-start mechanism that ensures safe start-up operation. The mechanism causes the converter switches to be driven such that on-impedance is increased during at least a portion of the time the switches are turned on. Increased on-impedance condition is invoked during power-up, and/or no-load or light-load condition. The increased on-impedance temporarily reduces output voltage and/or drive current provided by the converter.