{"title":"Design consideration for large current GTO","authors":"T. Yatsuo, S. Kimura, Y. Satou","doi":"10.1109/PESC.1988.18222","DOIUrl":null,"url":null,"abstract":"Current crowding of a GTO (gate-turn-off) during turn-off operation and operating limits without breakdown were investigated by a current-distribution-measurement method and by computer simulation. It was found that to increase the maximum turn-off current, current crowding is suppressed by a gate structure optimized for the distribution of a steady on-state current. Also, current flowing into a unit GTO is reduced by optimizing the number of unit GTOs so that they are operating in a safe operating area. The characteristics of a 4000 A trial GTO fabricated on the basis of these considerations are reported.<<ETX>>","PeriodicalId":283605,"journal":{"name":"PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference","volume":"92 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","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.1988.18222","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
Current crowding of a GTO (gate-turn-off) during turn-off operation and operating limits without breakdown were investigated by a current-distribution-measurement method and by computer simulation. It was found that to increase the maximum turn-off current, current crowding is suppressed by a gate structure optimized for the distribution of a steady on-state current. Also, current flowing into a unit GTO is reduced by optimizing the number of unit GTOs so that they are operating in a safe operating area. The characteristics of a 4000 A trial GTO fabricated on the basis of these considerations are reported.<>