A novel soft-switching full-bridge converter for ZVS in light and full load conditions with current-doubler rectifier

Zhong Chen, F. Ji, Biao Ji, Xin Zhang
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引用次数: 3

Abstract

A novel full-bridge converter suitable for low-voltage high-current output applications is proposed. It realizes ZVS for all switches over the entire load range with the use of voltage complementary auxiliary network on the primary side. A current-doubler rectifier is adopted on the secondary side which has no duty cycle loss and no secondary voltage spike. The operation principle and characteristic of the converter are discussed in detail. The design method of key parameters is given. The performance of the proposed converter is verified by experimental results.
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采用倍流整流器的新型轻、满载ZVS软开关全桥变换器
提出了一种适用于低压大电流输出的新型全桥变换器。利用一次侧电压互补辅助网络,实现了整个负荷范围内所有开关的零电压交换。二次侧采用倍流整流器,无占空比损失,无二次电压尖峰。详细讨论了该变换器的工作原理和特点。给出了关键参数的设计方法。实验结果验证了该变换器的性能。
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