The Reliability of 150 W LED Driver under High Temperature Switch
YAN Xin
FENG Shiwei
ZHANG Yamin
YUE Yuan
MENG Qinghui
SHI Lei
LI Rui
Abstract：Due to the high rate failure of electrolytic capacitor in LED driver , a high temperature impact test have been designed in this paper. LED driver includes EMC filter, PFC converter, PWM control, and DC / DC converter module, and the weakest piont in DC / DC converter modules is electrolytic capacitors. The electrolyte in the long-term working in the electrolytic capacitor will decline, which led to decreased capacity, filtering degradation, failure phenomenon. During the experiment, important parameters of the LED drivers were recorded. After the experiment, important parameters of electrolytic capacitors are analyzed and the main cause of degradation will be finded out, which will have important significance for future research.
Keywords：LED drivereliabilityelectrolytic capacitorcapacitance
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 74-76,125 )