{"title":"LLC变流器ZVS工况再分析","authors":"Haibin Song, Daofei Xu, A. Zhang","doi":"10.1109/APEC42165.2021.9487400","DOIUrl":null,"url":null,"abstract":"LLC convertor is widely used because of ZVS operation of primary switches and ZCS operation of secondary switches. These features make it suitable for high fs design to cater for the miniaturization trend of switching mode power supply (SMPS). ZVS operation of the primary switches is critical for high fs design to achieve high efficiency. Traditional analysis of the ZVS condition for LLC converter is not accurate enough for high fs design. This paper gives a detail analysis on the operation modes during the dead time interval. An accurate ZVS condition is derived based on the analysis. The verification of the theoretical analysis has been carried out with simulation and a half-bridge(HB) LLC prototype.","PeriodicalId":7050,"journal":{"name":"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Re-analysis on ZVS Condition for LLC Converter\",\"authors\":\"Haibin Song, Daofei Xu, A. Zhang\",\"doi\":\"10.1109/APEC42165.2021.9487400\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"LLC convertor is widely used because of ZVS operation of primary switches and ZCS operation of secondary switches. These features make it suitable for high fs design to cater for the miniaturization trend of switching mode power supply (SMPS). ZVS operation of the primary switches is critical for high fs design to achieve high efficiency. Traditional analysis of the ZVS condition for LLC converter is not accurate enough for high fs design. This paper gives a detail analysis on the operation modes during the dead time interval. An accurate ZVS condition is derived based on the analysis. The verification of the theoretical analysis has been carried out with simulation and a half-bridge(HB) LLC prototype.\",\"PeriodicalId\":7050,\"journal\":{\"name\":\"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEC42165.2021.9487400\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEC42165.2021.9487400","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
LLC convertor is widely used because of ZVS operation of primary switches and ZCS operation of secondary switches. These features make it suitable for high fs design to cater for the miniaturization trend of switching mode power supply (SMPS). ZVS operation of the primary switches is critical for high fs design to achieve high efficiency. Traditional analysis of the ZVS condition for LLC converter is not accurate enough for high fs design. This paper gives a detail analysis on the operation modes during the dead time interval. An accurate ZVS condition is derived based on the analysis. The verification of the theoretical analysis has been carried out with simulation and a half-bridge(HB) LLC prototype.
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