一种改进型占空比ZVT双开关正激变换器

2018 5th International Conference on Electrical and Electronic Engineering (ICEEE) Pub Date : 2018-05-03 DOI:10.1109/ICEEE2.2018.8391297

H. Bodur, F. Zungor, Erdem Akboy

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引用次数: 1

摘要

本文提出了一种基于有源消磁结构的隔离式dc-dc变换器，以实现变换器变压器的消磁。同时，该结构还提高了双开关正激变换器的占空比限制。同时，将零电压转换单元集成到改进的变换器中，并实现了开关的软开关(SS)。因此，所提出的变换器具有占空比大于50%和无导通开关损耗的特点。介绍了其工作原理、理论分析和设计方法。利用PowerSIM (PSIM)仿真软件对理论分析进行了验证。

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An improved duty cycle ZVT two swicth forward converter

In this paper, an isolated dc-dc converter based on an active demagnetization structure is presented in order to demagnetize transformer of a converter. Also, duty cycle limitation of two switch forward converter is improved with using this structure. At the same time, A Zero Voltage Transition (ZVT) cell is integrated into this improved converter and Soft Switching (SS) for the switches is achieved, too. So, the proposed converter has features duty cycle more than %50 and no turn on switching losses. Operation principles, theoretical analyses and design methods are presented. These theoretical analyses are verified with simulation results using PowerSIM (PSIM) programme.

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来源期刊

2018 5th International Conference on Electrical and Electronic Engineering (ICEEE)

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