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:
May. 06, 2014
Filed:
Mar. 23, 2012
Jingtao Tan, Shanghai, CN;
Yang LI, Shanghai, CN;
Zhijian Zhou, Shanghai, CN;
Shichao Yan, Shanghai, CN;
Wen-yin Tasi, Taoyuan Hsien, TW;
Jianping Ying, Shanghai, CN;
Jingtao Tan, Shanghai, CN;
Yang Li, Shanghai, CN;
Zhijian Zhou, Shanghai, CN;
Shichao Yan, Shanghai, CN;
Wen-Yin Tasi, Taoyuan Hsien, TW;
Jianping Ying, Shanghai, CN;
Delta Electronics, Inc., Taoyuan Hsien, TW;
Abstract
The configurations of a three-phase buck-boost power factor correction (PFC) circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a first single-phase buck-boost PFC circuit receiving a first phase voltage and having a first and a second output terminals and a neutral-point for outputting a first and a second output voltages, a second single-phase buck-boost PFC circuit receiving a second phase voltage and coupled to the first and the second output terminals and the neutral-point, a third single-phase buck-boost PFC circuit receiving a third phase voltage and coupled to the first and the second output terminals and the neutral-point, a first and a second output capacitors coupled to the first and the second output terminals respectively, and to the neutral-point also and a neutral line coupled to the neutral-point.