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. 22, 2014
Filed:
Apr. 01, 2010
Jingtao Tan, Shanghai, CN;
Zhijian Zhou, Shanghai, CN;
Jianping Yang, Shanghai, CN;
Wenhui Gou, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Jingtao Tan, Shanghai, CN;
Zhijian Zhou, Shanghai, CN;
Jianping Yang, Shanghai, CN;
Wenhui Gou, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Delta Electronics, Inc., , TW;
Abstract
The configurations of a single-phase dual buck-boost/buck power factor correction (PFC) circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a single-phase three-level buck-boost PFC circuit receiving an input voltage and having a first output terminal, a neutral-point and a second output terminal for outputting a first and a second output voltages, a single-phase three-level buck PFC circuit receiving the input voltage and coupled to the first output terminal, the neutral-point and the second output terminal, a first output capacitor coupled to the first output terminal and the neutral-point, a second output capacitor coupled to the neutral-point and the second output terminal, and a neutral line coupled to the neutral-point.