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:
May. 30, 1995
Filed:
May. 24, 1994
Applicant:
Inventor:
Takanori Muto, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 21 ;
Abstract
In a switching type DC-DC converter, switching frequency f, gate to source voltage of a switching FET, and the stray capacity of the FET are decreased at light load period to increase conversion efficiency at light load. In another embodiment, no-load current is decreased by increasing self inductance of a smoothing choke at light load.
Muto, Takanori. (1995). Switching type dc-dc converter having increasing conversion efficiency (U.S. Patent No. 5420777). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5420777
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile