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An optimized phase-shifted full-bridge converter for wide input voltage range

机译:经过优化的相移全桥转换器,适用于宽输入电压范围

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Zero-voltage phase-shifted full-bridge converters (PSFB ZVS) have been widely used in the high frequency, high power applications with these characteristics of zero-voltage switching (ZVS) by Phase shifting based on the fixed frequency. However????the load and input voltage range for full power transistors realizing ZVS are limited. So this paper proposes a solution with adding a coupled inductor on the primary side of transformer???? as well as adopting active clamping topology on the secondary side. The auxiliary circuit can achieve adaptive energy storage by the processor????make the input voltage range and load range of ZVS of all switching tubes greater, reduce the circulation and conduction losses, minimize the duty cycle of secondary loss problems.
机译:零电压移相全桥转换器(PSFB ZVS)已被广泛用于高频,大功率应用,这些应用具有基于固定频率的相移特性,具有零电压开关(ZVS)的这些特性。但是,实现ZVS的全功率晶体管的负载和输入电压范围受到限制。因此,本文提出了一种在变压器初级侧增加耦合电感的解决方案?以及在次级侧采用有源钳位拓扑。辅助电路可以通过处理器实现自适应能量存储,从而使所有开关管的ZVS的输入电压范围和负载范围更大,减少循环和传导损耗,最小化次级损耗问题的占空比。

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