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:
Aug. 28, 2012
Filed:
Mar. 02, 2010
Jian-hui LU, Shenzhen, CN;
Jian-Hui Lu, Shenzhen, CN;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A power supply module includes an AC/DC converter, a voltage transforming circuit, a feedback circuit, and a detecting circuit. The AC/DC converter is used for converting the input AC voltage to a primary DC voltage. The voltage transforming circuit is used for transforming the primary DC voltage to the first DC voltage. The feedback circuit is used for sampling the first DC voltage to generate a feedback signal. The detecting circuit is used for detecting if the power supply module is powered on, and generating a first voltage when detecting that the power supply module is powered on. Wherein the voltage transforming circuit maintains the first DC voltage at a first predetermined value according to the feedback signal, the feedback circuit increases a magnitude of the feedback signal according to the first voltage.