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. 13, 2010
Filed:
Dec. 03, 2007
Huai-zhu Yan, Shenzhen, CN;
Tong Zhou, Shenzhen, CN;
Hong-bo Zhou, Shehzhen, CN;
Kun Le, Shenzhen, CN;
Huai-Zhu Yan, Shenzhen, CN;
Tong Zhou, Shenzhen, CN;
Hong-Bo Zhou, Shehzhen, CN;
Kun Le, Shenzhen, CN;
Innocom Technology (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Innolux Display Corp., Miao-Li County, TW;
Abstract
An exemplary power supply circuit () includes a first commutating and filter circuit (), a transformer (), a second commutating and filter circuit (), a transistor (), a pulse width modulation circuit () outputting a control signal to control operation state of the transistor, and a feedback circuit (). An external alternating current voltage is converted into a direct current with a cooperation operating of the transistor, the first commutating and filter circuit, the transformer, and the second commutating and filter circuit. The feedback circuit feeds an operating state of the transformer back to the pulse width modulation circuit, and the pulse width modulation circuit outputs corresponding control signals to turn on or turn off the transistor.