{"title":"利用外部光通量测量估算发光二极管的内部结温和热阻","authors":"X. Tao, S.N. Li, S. Hui","doi":"10.1109/ECCE.2010.5618051","DOIUrl":null,"url":null,"abstract":"Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily. From the general photo-electro-thermal theory for LED systems, new equations for estimating the internal junction temperature Tj and junction-case thermal resistance Rjc of LED from the luminous flux measurements, which can be obtained relatively easily, are presented and verified practically. These equations provide a valuable tool for checking Tj in LED system design without expensive equipment.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Estimation of internal junction temperature & thermal resistance of light-emitting diodes using external luminous flux measurements\",\"authors\":\"X. Tao, S.N. Li, S. Hui\",\"doi\":\"10.1109/ECCE.2010.5618051\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily. From the general photo-electro-thermal theory for LED systems, new equations for estimating the internal junction temperature Tj and junction-case thermal resistance Rjc of LED from the luminous flux measurements, which can be obtained relatively easily, are presented and verified practically. These equations provide a valuable tool for checking Tj in LED system design without expensive equipment.\",\"PeriodicalId\":161915,\"journal\":{\"name\":\"2010 IEEE Energy Conversion Congress and Exposition\",\"volume\":\"77 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 IEEE Energy Conversion Congress and Exposition\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ECCE.2010.5618051\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 IEEE Energy Conversion Congress and Exposition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECCE.2010.5618051","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Estimation of internal junction temperature & thermal resistance of light-emitting diodes using external luminous flux measurements
Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily. From the general photo-electro-thermal theory for LED systems, new equations for estimating the internal junction temperature Tj and junction-case thermal resistance Rjc of LED from the luminous flux measurements, which can be obtained relatively easily, are presented and verified practically. These equations provide a valuable tool for checking Tj in LED system design without expensive equipment.
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