Comparative Analysis of the Reliability of Drivers for Power LED

被引：0

作者：

Villanueva, I. ^{[1
]}

Juarez, M. A. ^{[1
]}

Martinez, P. R. ^{[1
]}

Sosa, J. M. ^{[1
]}

Vazquez, G. ^{[1
]}

机构：

[1] ITESI, Higher Technol Inst Irapuato, Highway Irapuato Silao Km 12-5, Irapuato 36821, Mexico

来源：

2015 IEEE INTERNATIONAL AUTUMN MEETING ON POWER, ELECTRONICS AND COMPUTING (ROPEC) | 2015年

关键词：

Reliability; Buck Converter; Flyback Converter; Power LED;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presented a comparative study in function reliability between dc-dc converters used in power LED. Between dc-dc converters more used to power LED are the Buck and Flyback converter, because the Buck provides a lower output voltage than the input, and in the case of fly back has galvanic isolation. The study has objetive to determine the reliability obtaining the failure rate of the system and the average time when failures occurs, because the LED driver must have an average life similar to the LED lamp. The reliability analysis is based in the standard MIL-HDBK-217, for this study performed was used a LED load of 54.6 W in both converters. The results have shown that the buck converter has a lower failure rate and a higher mean time between failures, therefore has a longer useful life.

引用

页数：6

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