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:
Jun. 26, 2012
Filed:
Feb. 13, 2009
Li-jun Zhao, Shenzhen, CN;
Tong Zhou, Shenzhen, CN;
Li-Jun Zhao, Shenzhen, CN;
Tong Zhou, Shenzhen, CN;
Innocom Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Chimei Innolux Corporation, Miaoli County, TW;
Abstract
An exemplary switching power supply circuit includes a transformer, a switching control circuit, a DC-DC converter, and a signal selecting circuit. The transformer converts a DC voltage into a first DC voltage and a second DC voltage. The switching control circuit controls a current flowing on the transformer for generating the first DC voltage and the second DC voltage. The DC-DC converter converts the first DC voltage or the second DC voltage into a third DC voltage. The signal selecting circuit selects the first DC voltage or the second DC voltage for the DC-DC converter to generate the third DC voltage.