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:
Apr. 24, 2012
Filed:
Aug. 25, 2009
Ryuji Yamamoto, Yao, JP;
Ryuji Yamamoto, Yao, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Sanyo Semiconductor Co., Ltd., Gunma, JP;
Abstract
When an output of an overall output terminal () of a power supply circuit () is switched from a series regulator section () to a switching regulator section (), a fifth switch () is switched OFF, to temporarily open a feedback loop of the switching regulator section (), a sixth switch () is maintained at an ON state, to output the output of the series regulator section () to the overall output terminal (), and an artificial feedback loop is formed between an output terminal of an error amplifier () and a second terminal of the error amplifier (), to output a voltage corresponding to the output of the series regulator section () to the output terminal of the error amplifier () and charge a phase compensating capacitor () of the switching regulator section ().