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:
Jul. 11, 2006
Filed:
Mar. 25, 2005
Tetsuji Yamashita, Kyoto, JP;
Tetsuji Yamashita, Kyoto, JP;
Matsushita Electric Industrial Co., Inc., Osaka, JP;
Abstract
A semiconductor device () for controlling a switching power supply, includes a switching element () and a switching control circuit. During an intermittent switching operation of the switching element (), when a return signal is outputted from a light load detection circuit () before the counting of a counter circuit (), the switching operation of the switching element () is restarted at the timing of a transformer reset signal from a transformer reset detection circuit () after the return signal is outputted. When the return signal is outputted from the light load detection circuit () after the counting of the counter circuit (), the switching operation of the switching element () is restarted, regardless of the transformer reset signal, only when the return signal is outputted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile