Full ZVS-Range Transient Current Buildup Half-Bridge Converter With Different ZVS Operations to Load Variation
Sung-Sae Lee; Gun-Woo Moon
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 6, June 2008 Page(s):2557 - 2559
Digital Object Identifier   10.1109/TIE.2008.921239
Summary:A full zero voltage switching (ZVS) range transient current buildup half-bridge converter is proposed. The proposed converter controls the secondary synchronous switches to build up the current for the ZVS operation. In addition, the blocking capacitor in the secondary side of the transformer is used to make the different current buildups and different ZVS operations with the load variation. Furthermore, it eliminates the DC offset of the magnetizing current. Therefore, the considerably effective ZVS characteristics can be ensured in the full-load ranges without any additional conduction losses.

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