用正向电压法估算LED灯结温

2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE) Pub Date : 2016-04-18 DOI:10.1109/EUROSIME.2016.7463297

Hong-liang Ke, Qiang Sun, Jian Zhao, Hongxin Zhang, L. Jing, Yao Wang, Jian-cheng Hao

{"title":"用正向电压法估算LED灯结温","authors":"Hong-liang Ke, Qiang Sun, Jian Zhao, Hongxin Zhang, L. Jing, Yao Wang, Jian-cheng Hao","doi":"10.1109/EUROSIME.2016.7463297","DOIUrl":null,"url":null,"abstract":"For estimating the junction temperature (Tj) of LED lamp, the Tj of LED module powering by rated current (135mA DC) and working in the thermal environment of LED lamp is measured with traditional forward voltage method in experiment 1. To calculate the Tj of LED lamp in actual working conditions (220V AC), a correction factor is introduced into the original model to process the deviation of output currents of LED driver electronics, as demonstrated in experiment 2. Compared with the surface temperature of LED obtained by infrared imaging method, the result in experiment 2 can effectively reflect the change in Tj of LED lamp under different ambient temperatures, which differs the surface temperature by 3~4°C. While due to a significant effect on the thermal environment of LED lamp introduced by LED driver electronics, the result in experiment 1 is approximately 9~10°C lower than that in experiment 2.","PeriodicalId":438097,"journal":{"name":"2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Junction temperature estimation for LED lamp with forward voltage method\",\"authors\":\"Hong-liang Ke, Qiang Sun, Jian Zhao, Hongxin Zhang, L. Jing, Yao Wang, Jian-cheng Hao\",\"doi\":\"10.1109/EUROSIME.2016.7463297\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For estimating the junction temperature (Tj) of LED lamp, the Tj of LED module powering by rated current (135mA DC) and working in the thermal environment of LED lamp is measured with traditional forward voltage method in experiment 1. To calculate the Tj of LED lamp in actual working conditions (220V AC), a correction factor is introduced into the original model to process the deviation of output currents of LED driver electronics, as demonstrated in experiment 2. Compared with the surface temperature of LED obtained by infrared imaging method, the result in experiment 2 can effectively reflect the change in Tj of LED lamp under different ambient temperatures, which differs the surface temperature by 3~4°C. While due to a significant effect on the thermal environment of LED lamp introduced by LED driver electronics, the result in experiment 1 is approximately 9~10°C lower than that in experiment 2.\",\"PeriodicalId\":438097,\"journal\":{\"name\":\"2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)\",\"volume\":\"38 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-04-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EUROSIME.2016.7463297\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EUROSIME.2016.7463297","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 11

摘要

为了估算LED灯的结温(Tj)，实验1采用传统的正向电压法测量了在额定电流(135mA DC)下工作在LED灯热环境下的LED模组的结温(Tj)。为了计算LED灯在实际工作条件下(220V交流)的Tj，在原模型中引入一个校正因子来处理LED驱动电子器件输出电流的偏差，如实验2所示。与红外成像方法获得的LED表面温度相比，实验2的结果可以有效反映不同环境温度下LED灯Tj的变化，表面温度相差3~4℃。而由于LED驱动电子器件引入对LED灯热环境的显著影响，实验1的结果比实验2的结果低约9~10℃。

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

Junction temperature estimation for LED lamp with forward voltage method

For estimating the junction temperature (Tj) of LED lamp, the Tj of LED module powering by rated current (135mA DC) and working in the thermal environment of LED lamp is measured with traditional forward voltage method in experiment 1. To calculate the Tj of LED lamp in actual working conditions (220V AC), a correction factor is introduced into the original model to process the deviation of output currents of LED driver electronics, as demonstrated in experiment 2. Compared with the surface temperature of LED obtained by infrared imaging method, the result in experiment 2 can effectively reflect the change in Tj of LED lamp under different ambient temperatures, which differs the surface temperature by 3~4°C. While due to a significant effect on the thermal environment of LED lamp introduced by LED driver electronics, the result in experiment 1 is approximately 9~10°C lower than that in experiment 2.

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

2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)

自引率

0.00%

发文量