{"title":"最大限度地减少大电流发射极开关晶体管的缓冲器","authors":"F. Robinson, Bruce A. Williams","doi":"10.1109/PESC.1988.18210","DOIUrl":null,"url":null,"abstract":"High-power emitter-switched transistors have been operated at 20 kHz and 80 A off 600 V, using voltage clamps instead of shunt snubbers. Under these conditions, snubbing is the dominant source of switching-related power loss and transistors deadtime. An analysis of series snubbers reveals configurations conducive to minimal reset-time and power-loss. Cascode switches operating at high-current ideally require adaptive voltage-clamps which clip at current-dependent voltage levels; practical realizations of such clamps are given.<<ETX>>","PeriodicalId":283605,"journal":{"name":"PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Minimising snubbers for high-current emitter-switched transistors\",\"authors\":\"F. Robinson, Bruce A. Williams\",\"doi\":\"10.1109/PESC.1988.18210\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"High-power emitter-switched transistors have been operated at 20 kHz and 80 A off 600 V, using voltage clamps instead of shunt snubbers. Under these conditions, snubbing is the dominant source of switching-related power loss and transistors deadtime. An analysis of series snubbers reveals configurations conducive to minimal reset-time and power-loss. Cascode switches operating at high-current ideally require adaptive voltage-clamps which clip at current-dependent voltage levels; practical realizations of such clamps are given.<<ETX>>\",\"PeriodicalId\":283605,\"journal\":{\"name\":\"PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference\",\"volume\":\"22 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-04-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PESC.1988.18210\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PESC.1988.18210","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Minimising snubbers for high-current emitter-switched transistors
High-power emitter-switched transistors have been operated at 20 kHz and 80 A off 600 V, using voltage clamps instead of shunt snubbers. Under these conditions, snubbing is the dominant source of switching-related power loss and transistors deadtime. An analysis of series snubbers reveals configurations conducive to minimal reset-time and power-loss. Cascode switches operating at high-current ideally require adaptive voltage-clamps which clip at current-dependent voltage levels; practical realizations of such clamps are given.<>