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:
Nov. 01, 2011
Filed:
Apr. 02, 2009
Fang-ta Tai, Taipei Hsien, TW;
Chen-hsiang Lin, Taipei Hsien, TW;
Teng-feng Zou, Taipei Hsien, TW;
Jui-ting Hung, Taipei Hsien, TW;
Yi-bin Hwang, Taipei Hsien, TW;
Li-chung Sun, Taipei Hsien, TW;
Fang-Ta Tai, Taipei Hsien, TW;
Chen-Hsiang Lin, Taipei Hsien, TW;
Teng-Feng Zou, Taipei Hsien, TW;
Jui-Ting Hung, Taipei Hsien, TW;
Yi-Bin Hwang, Taipei Hsien, TW;
Li-Chung Sun, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A control circuit for a switching power supply (SPS) includes power input and output interfaces, a relay, a relay driving circuit, a microprocessor, and an alternating current/directing current (AC/DC) converter. The power input interface receives an external alternating current (AC) power signal, and transmits the AC power signal to the SPS via the power output interface. The AC/DC converter transforms the AC power signal into a direct current (DC) power signal to supply for the relay, the relay driving circuit, and the microprocessor. When a computer is turned on, the microprocessor sends a first control signal to control the relay driving circuit to drive the relay to connect the power input and output interfaces. When the computer is turned off, the microprocessor sends a second control signal to control the relay driving circuit to drive the relay to cut off connection between the power input and output interfaces.