{"title":"Improving Efficiency of an Asymmetrical Half-Bridge PWM Converter with Synchronous Rectification by a Modified Design Process","authors":"B. Kohlhepp, M. Barwig, T. Dürbaum","doi":"10.1109/ICEPE.2018.8559836","DOIUrl":null,"url":null,"abstract":"High efficiency calls for soft switching and high frequency converters. Correctly designed asymmetric half-bridge PWM converters employing ZVS represent an attractive candidate. For low output voltage applications, synchronous rectification should allow efficient operation. However, since simple replacement shows promising results through simulation, a test setup reveals a great discrepancy. Massive oscillations during the turn-off transition of the synchronous rectifier causes enormous losses. Therefore, a second synchronous rectifier design is investigated, which uses an alternative design method. This design confirms the improved efficiency achieved by simulation.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"8 1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEPE.2018.8559836","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
High efficiency calls for soft switching and high frequency converters. Correctly designed asymmetric half-bridge PWM converters employing ZVS represent an attractive candidate. For low output voltage applications, synchronous rectification should allow efficient operation. However, since simple replacement shows promising results through simulation, a test setup reveals a great discrepancy. Massive oscillations during the turn-off transition of the synchronous rectifier causes enormous losses. Therefore, a second synchronous rectifier design is investigated, which uses an alternative design method. This design confirms the improved efficiency achieved by simulation.