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A Study on the Power Losses and Conversion Efficiency Analysis for the Phase-Shift Controlled Full-Bridge Converter  

Ahn, Tae-Young (청주대 전자정보공학부)
Bong, Sang-Cheol (삼성전기 파워사업팀)
Heo, Tae-Won (삼성전기 파워사업팀)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.3, 2009 , pp. 228-234 More about this Journal
Abstract
In this paper, we present an analytical method that provides fast and efficient evaluation of the power losses and the conversion efficiency for phase-shift controlled full-bridge converter. In the proposed method, the conduction losses are evaluated by calculating the effective values of the ideal current waveform first and incorporating them into an exact equivalent circuit model of the phase-shift controlled full-bridge converter that includes all the parasitic resistances of the circuit components. While the conduction losses are accurately accounted for the synchronous rectification, the core losses are assumed to be negligible in order to simplify the analysis. The validity and accuracy of the proposed method are verified with experiments on a prototype phase-shift controlled full-bridge converter. An excellent correlation between the experiments and theories are obtained for the input voltages of 400V, output voltage 12V and maximum power 720W.
Keywords
ZVS; Full bridge converter; Phase shift control; Efficiency analysis; Losses analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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