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. 01, 2012
Filed:
Apr. 24, 2009
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 are provided. The 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 third phase voltage and coupled to the first and the second output terminals and the neutral-point, a first to a fourth thyristors, each of which has an anode and a cathode. The anodes of the first and the third thyristors and the cathodes of the second and the fourth thyristors receive a second phase voltage, and the cathode of the first thyristor and the anode of the second thyristor are coupled to the first single-phase buck-boost PFC circuit.