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Title: Practical design and evaluation of a 1 kW PFC power supply based on reduced redundant power processing principle
Authors: Cheung, MKH
Chow, MHL 
Tse, CKM 
Issue Date: Feb-2008
Source: IEEE transactions on industrial electronics, Feb. 2008, v. 55, no. 2, p. 665-673
Abstract: Using the reduced redundant power processing (R²P²) principle, a single-phase power-factor correction (PFC) power supply can achieve a higher overall efficiency as a result of the use of a noncascading structure that involves less repeated processing of the input power. This paper investigates a single-phase noncascading PFC power supply based on the R²P² principle. The circuit employs a current-fed full-bridge converter as the PFC preregulator, and a buck-boost converter as the voltage regulator. This paper addresses the design of this noncascading PFC power supply and in particular the relationships between the gained efficiency, the transient response and the size of the energy storage. Experimental results obtained from a 1 kW laboratory prototype are presented.
Keywords: Buck-boost converter
Continuous conduction mode (CCM)
Current-fed full-bridge converter
Noncascading structure
Power factor correction (PFC)
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on industrial electronics 
ISSN: 0278-0046
EISSN: 1557-9948
DOI: 10.1109/TIE.2007.909078
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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