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. 03, 2007
Filed:
Jun. 20, 2005
Hongjian Gan, Taoyuan Hsien, TW;
Qinggang Kong, Taoyuan Hsien, TW;
Youjun Zhang, Taoyuan Hsien, TW;
Jianping Ying, Taoyuan Hsien, TW;
Hongjian Gan, Taoyuan Hsien, TW;
Qinggang Kong, Taoyuan Hsien, TW;
Youjun Zhang, Taoyuan Hsien, TW;
Jianping Ying, Taoyuan Hsien, TW;
DELTA Electronics, Inc., Taoyuan Hsien, TW;
Abstract
A power supply device and a single photo-coupler control circuit thereof are provided. The power supply device includes a single photo-coupler control circuit, a main converter and an auxiliary converter. The main converter connects to an output load. The auxiliary converter connects in parallel with the main converter. The single photo-coupler control circuit, also connected to the output load, monitors the status of the power supply device and controls the main converter and the auxiliary converter accordingly. The single photo-coupler control circuit only has one photo-coupler. The main converter and the auxiliary converter together provide a first output to the output load when the power supply device works in a normal mode. The main converter is turned off so that only the auxiliary converter provides a second output to the output load when the power supply device works in a standby mode.