{"title":"一种正向脉宽调制准谐振变换器:分析、设计与实验结果","authors":"I. Barbi, J. B. Vieira, J.C. Bolacell","doi":"10.1109/IECON.1989.69606","DOIUrl":null,"url":null,"abstract":"The authors propose a forward pulse-width modulated zero-current switching quasi-resonant converter (F-PWM-ZCS-QRC), which, in contrast to the conventional forward frequency-modulated zero-current switching quasi-resonant converter (F-FM-ZCS-QRC), provides output voltage and power control at a constant operating frequency. The topology is generated by inserting an additional current-bidirectional switch in the conventional F-FM-ZCS-QRC. The operation principle and design-oriented analysis are presented, with normalized design curves, design procedure, numerical examples, simulations, and experimental results. Theoretical analysis was verified experimentally with a prototype rated at 100 W, operating at the resonant frequency of 1.56 MHz and a switching frequency of 500 kHz. It has been experimentally demonstrated that the proposed converter operates from full load down to 2% of full load, with a constant switching frequency of 500 kHz.<<ETX>>","PeriodicalId":384081,"journal":{"name":"15th Annual Conference of IEEE Industrial Electronics Society","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":"{\"title\":\"A forward pulse-width modulated quasi-resonant converter: analysis, design and experimental results\",\"authors\":\"I. Barbi, J. B. Vieira, J.C. Bolacell\",\"doi\":\"10.1109/IECON.1989.69606\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors propose a forward pulse-width modulated zero-current switching quasi-resonant converter (F-PWM-ZCS-QRC), which, in contrast to the conventional forward frequency-modulated zero-current switching quasi-resonant converter (F-FM-ZCS-QRC), provides output voltage and power control at a constant operating frequency. The topology is generated by inserting an additional current-bidirectional switch in the conventional F-FM-ZCS-QRC. The operation principle and design-oriented analysis are presented, with normalized design curves, design procedure, numerical examples, simulations, and experimental results. Theoretical analysis was verified experimentally with a prototype rated at 100 W, operating at the resonant frequency of 1.56 MHz and a switching frequency of 500 kHz. It has been experimentally demonstrated that the proposed converter operates from full load down to 2% of full load, with a constant switching frequency of 500 kHz.<<ETX>>\",\"PeriodicalId\":384081,\"journal\":{\"name\":\"15th Annual Conference of IEEE Industrial Electronics Society\",\"volume\":\"77 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-11-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"15th Annual Conference of IEEE Industrial Electronics Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IECON.1989.69606\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"15th Annual Conference of IEEE Industrial Electronics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IECON.1989.69606","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A forward pulse-width modulated quasi-resonant converter: analysis, design and experimental results
The authors propose a forward pulse-width modulated zero-current switching quasi-resonant converter (F-PWM-ZCS-QRC), which, in contrast to the conventional forward frequency-modulated zero-current switching quasi-resonant converter (F-FM-ZCS-QRC), provides output voltage and power control at a constant operating frequency. The topology is generated by inserting an additional current-bidirectional switch in the conventional F-FM-ZCS-QRC. The operation principle and design-oriented analysis are presented, with normalized design curves, design procedure, numerical examples, simulations, and experimental results. Theoretical analysis was verified experimentally with a prototype rated at 100 W, operating at the resonant frequency of 1.56 MHz and a switching frequency of 500 kHz. It has been experimentally demonstrated that the proposed converter operates from full load down to 2% of full load, with a constant switching frequency of 500 kHz.<>
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