A forward converter employing a simple ZCS-PWM auxiliary circuit to achieve soft-switching and power transformer resetting

The 2010 International Power Electronics Conference - ECCE ASIA - Pub Date : 2010-06-21 DOI:10.1109/IPEC.2010.5543858

Chang-Hua Lin, Chien-Ming Wang, Chia-Hua Liu, Teng-Chieh Yang

{"title":"A forward converter employing a simple ZCS-PWM auxiliary circuit to achieve soft-switching and power transformer resetting","authors":"Chang-Hua Lin, Chien-Ming Wang, Chia-Hua Liu, Teng-Chieh Yang","doi":"10.1109/IPEC.2010.5543858","DOIUrl":null,"url":null,"abstract":"This paper proposed a zero-current-switching pulsewidth-modulation (ZCS-PWM) forward dc/dc converter using a simple ZCS-PWM auxiliary circuit. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the proposed converter operate at zero-voltage-switching (ZVS) turn on and turn off. Besides operating at constant frequency and reducing commutation losses, the proposed converter has no additional current stress and conduction loss in the main switch in comparison to the conventional hard switching forward converter counterpart. The power transformer can self-reset without the conventional reset winding. The averaging approach is used to estimate and examine the steady-state of the proposed converter. The principle of operation, theoretical analysis, and experimental results of the proposed ZCS-PWM forward converter, rated 500W and operating at 40 kHz, are provided in this paper to verify the performance of the proposed converter.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"28 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The 2010 International Power Electronics Conference - ECCE ASIA -","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IPEC.2010.5543858","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

This paper proposed a zero-current-switching pulsewidth-modulation (ZCS-PWM) forward dc/dc converter using a simple ZCS-PWM auxiliary circuit. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the proposed converter operate at zero-voltage-switching (ZVS) turn on and turn off. Besides operating at constant frequency and reducing commutation losses, the proposed converter has no additional current stress and conduction loss in the main switch in comparison to the conventional hard switching forward converter counterpart. The power transformer can self-reset without the conventional reset winding. The averaging approach is used to estimate and examine the steady-state of the proposed converter. The principle of operation, theoretical analysis, and experimental results of the proposed ZCS-PWM forward converter, rated 500W and operating at 40 kHz, are provided in this paper to verify the performance of the proposed converter.

查看原文本刊更多论文

采用简单的ZCS-PWM辅助电路实现软开关和电源变压器复位的正激变换器

本文提出了一种零电流开关脉宽调制(ZCS-PWM)正激dc/dc变换器，采用简单的ZCS-PWM辅助电路。主开关和辅助开关在零电流开关的导通和关断下工作，并且所提出的变换器中的所有无源半导体器件在零电压开关(ZVS)的导通和关断下工作。除了在恒定频率下工作和减少换相损耗外，与传统的硬开关正激变换器相比，所提出的变换器在主开关中没有额外的电流应力和导通损耗。电力变压器无需常规复位绕组即可自复位。采用平均法对所提出的变换器的稳态进行估计和检验。本文给出了额定功率为500W、工作频率为40khz的ZCS-PWM正激变换器的工作原理、理论分析和实验结果，验证了该变换器的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

The 2010 International Power Electronics Conference - ECCE ASIA -

自引率

0.00%

发文量