Voltage oscillation reduction technique for phase-shift full-bridge converter

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A conventional phase-shift full-bridge converter (PSFB) has a serious voltage oscillation problem across the secondary rectifier diodes. To overcome this problem, a new voltage oscillation reduction technique (VORT), which effectively reduces the rectifier voltage oscillation by a simple manner, is proposed. The concept of the VORT is utilizing the operation of the leading leg transition, which does not cause a severe voltage oscillation across the rectifier, to the lagging leg transition, and it is implemented simply by employing only a resonant capacitor in series with the transformer secondary and a small magnetizing inductance of the transformer without any lossy components. Moreover, the VORT can realize ZVS for all switches along a wide load range. The concept, operational principle and oscillation analysis of the VORT are presented and verified experimentally.
Publisher
IEEE
Issue Date
2006-06-18
Language
English
Citation

Industrial Electronics, IEEE Transactions, v.54

DOI
10.1109/TIE.2007.899872
URI
http://hdl.handle.net/10203/152854
Appears in Collection
EE-Conference Papers(학술회의논문)
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