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http://dx.doi.org/10.6113/JPE.2012.12.2.268

Soft Switching Bridgeless PFC Buck Converters  

Emrani, Amin (Dept. of Electrical and Computer Engineering, Isfahan University of Technology)
Mahdavi, Mohammad (Dept. of Electrical and Computer Engineering, Isfahan University of Technology)
Adib, Ehsan (Dept. of Electrical and Computer Engineering, Isfahan University of Technology)
Publication Information
Journal of Power Electronics / v.12, no.2, 2012 , pp. 268-275 More about this Journal
Abstract
Based on the standards that limit the harmonic pollution of electronic systems, the use of PFC converters is mandatory. In this paper, a new resonant bridgeless PFC converter is introduced. By eliminating the input bridge diodes, the efficiency is improved. Moreover, soft switching conditions for all of the semiconductor elements are achieved without adding any extra switches. As a result, high efficiency is attained. The proposed converter is analyzed and the theoretical and simulation results of the proposed converter are presented. In order to verify the validity of the analysis, a 40 w prototype converter is implemented and experimental results are presented. The experimental results show that high efficiency is attained while achieving a high power factor.
Keywords
Bridgeless PFC; Power Factor Correction (PFC); Resonant converter; Soft switching;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)  (Related Records In Web of Science)
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