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Full ZVS-Range Transient Current Buildup Half-Bridge Converter With Different ZVS Operations to Load Variation

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2 Author(s)
Sung-Sae Lee ; Korea Aerosp. Res. Inst., Daejeon ; Gun-Woo Moon

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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Industrial Electronics, IEEE Transactions on  (Volume:55 ,  Issue: 6 )