LLC谐振变换器的开环同步整流驱动器

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2013-03-17 DOI:10.1109/APEC.2013.6520577

Jing Wang, B. Lu

{"title":"LLC谐振变换器的开环同步整流驱动器","authors":"Jing Wang, B. Lu","doi":"10.1109/APEC.2013.6520577","DOIUrl":null,"url":null,"abstract":"Synchronous rectifier (SR) is widely used in LLC resonant converter to reduce the conduction loss. Due to different operation modes, the SR control is complicated and increases system cost. In this paper, based on the observation on LLC diode conduction time, an open-loop fixed-on-time SR driving method is proposed. The optimal on-time is used to control the SR to simplify the implementation in different operation mode and reduce the system cost while maintains large efficiency improvement. The total efficiency of LLC resonant converter with SR driven by the proposed scheme is proved to increase by 2% under different load conditions with minimum system cost.","PeriodicalId":256756,"journal":{"name":"2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"25","resultStr":"{\"title\":\"Open loop synchronous rectifier driver for LLC resonant converter\",\"authors\":\"Jing Wang, B. Lu\",\"doi\":\"10.1109/APEC.2013.6520577\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Synchronous rectifier (SR) is widely used in LLC resonant converter to reduce the conduction loss. Due to different operation modes, the SR control is complicated and increases system cost. In this paper, based on the observation on LLC diode conduction time, an open-loop fixed-on-time SR driving method is proposed. The optimal on-time is used to control the SR to simplify the implementation in different operation mode and reduce the system cost while maintains large efficiency improvement. The total efficiency of LLC resonant converter with SR driven by the proposed scheme is proved to increase by 2% under different load conditions with minimum system cost.\",\"PeriodicalId\":256756,\"journal\":{\"name\":\"2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-03-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"25\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEC.2013.6520577\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEC.2013.6520577","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 25

摘要

同步整流器(SR)广泛应用于LLC谐振变换器中以降低导通损耗。由于运行方式的不同，SR控制较为复杂，增加了系统成本。本文在观察LLC二极管导通时间的基础上，提出了一种开环定时SR驱动方法。采用最优准点率控制SR，简化不同运行模式下的实施，在保持较大效率提高的同时降低系统成本。在不同负载条件下，以最小的系统成本驱动SR驱动的LLC谐振变换器的总效率提高了2%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Open loop synchronous rectifier driver for LLC resonant converter

Synchronous rectifier (SR) is widely used in LLC resonant converter to reduce the conduction loss. Due to different operation modes, the SR control is complicated and increases system cost. In this paper, based on the observation on LLC diode conduction time, an open-loop fixed-on-time SR driving method is proposed. The optimal on-time is used to control the SR to simplify the implementation in different operation mode and reduce the system cost while maintains large efficiency improvement. The total efficiency of LLC resonant converter with SR driven by the proposed scheme is proved to increase by 2% under different load conditions with minimum system cost.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

自引率

0.00%

发文量