Driver for high efficiency led based on flyback stage with current mode control for emergency lighting system

被引:0
作者
Rico-Secades, M [1 ]
Calleja, AJ [1 ]
Cardesin, J [1 ]
Ribas, J [1 ]
Corominas, EL [1 ]
Alonso, JM [1 ]
García, J [1 ]
机构
[1] Univ Oviedo, UNIOVI GEI Grp, ES-33204 Gijon, Spain
来源
CONFERENCE RECORD OF THE 2004 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-4: COVERING THEORY TO PRACTICE | 2004年
关键词
lighting; emergency lighting systems; LED;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Nowadays, Permanent Emergency Lighting Systems (PELS) are widely used in many applications: Emergency exit indication, fighting in critical or strategic points. Limitation in operation hours in classical lamps (10.000-20.000 hours for fluorescent lamps) implies short lamp replacement times and, therefore, high maintenance costs. This paper shows a driver based on a flyback circuit for a PELS system. Control in current mode operation assure current constant in LED's in any battery condition. The long operation life (above 100.000 hours) of high efficiency LED's with a very simple electronics circuitry implies an interesting solution for this type of applications. A 30 lumens and 1 hour PELS has been built and tested.
引用
收藏
页码:1655 / 1659
页数:5
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