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. 06, 2012
Filed:
Aug. 31, 2009
Yansong LU, Shanghai, CN;
Jingtao Tan, Shanghai, CN;
Xiao Chen, Shanghai, CN;
Hao Yu, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Yansong Lu, Shanghai, CN;
Jingtao Tan, Shanghai, CN;
Xiao Chen, Shanghai, CN;
Hao Yu, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Delta Electronics, Inc., Taoyuan Hsien, TW;
Abstract
The configurations of a parallel-connected UPS circuit are provided in the present invention. The proposed circuit includes a neutral, a battery having a positive and a negative terminals, and a plurality of PFC boost converters, each of which includes a PFC circuit including an inductor having a first terminal coupled to the positive terminal and a second terminal, a rectifying bridge coupled to the second terminal of the inductor, and having a first terminal and a second terminal coupled to the negative terminal, a switch bridge having a first terminal coupled to the first terminal of the rectifying bridge and a second terminal coupled to the second terminal of the rectifying bridge, and a control switch having a first terminal and a second terminal coupled to the neutral.