叶雪荣,刘高锋,孙博,刘明伟,王一行,翟国富.某LED开关电源的高加速寿命试验(HALT)研究[J].电测与仪表,2016,53(2):. YE Xue-rong,LIU Gao-feng,SUN Bo,liumingwei,WANG Yi-xing,ZHAI Guo-fu.Highly Accelerated Life Test (HALT) Research on a LED Switching Power Supply[J].Electrical Measurement & Instrumentation,2016,53(2):.
某LED开关电源的高加速寿命试验(HALT)研究
Highly Accelerated Life Test (HALT) Research on a LED Switching Power Supply
LED is a novel solid state lighting system, the reliability of whose driving power supply has attracted a wide attraction. As the reliability enhancement test, highly accelerated life test can excited the failure modes of the electronic system in a short period. This paper proposed a high accelerated life test with the LED switching power supply. Firstly, it analysed the basic structure and principle of the switching power supply. Then it determined the failure criterion. The paper also designed the random vibration step stress test plan and found the weak link reliability of the electronic system, which provided the basis for the reliability design.