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:
Jan. 19, 2010
Filed:
Sep. 29, 2006
Applicants:
Yuan-fang Lai, Taoyuan, TW;
Ying-sung Chang, Taoyuan, TW;
Inventors:
Yuan-Fang Lai, Taoyuan, TW;
Ying-Sung Chang, Taoyuan, TW;
Assignee:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention presents an uninterruptible power supply device including an input circuit coupled between a voltage input terminal and a rectifier circuit, in which the input circuit includes a boost choke being charged with an AC current received from the voltage input terminal for providing a boosted AC voltage to the rectifier circuit. The rectifier circuit is configured to convert the boosted AC voltage into an intermediate DC voltage. The intermediate DC voltage is converted through an inverter into a poly-phase output AC voltage for use by a load.