LED灯具芯片的趋额电应力防护设计

Electrical Overstress Protecting Design on LED Chip of Luminaire

LED灯具设计师一般对过电应力冲击防护设计的重要性认识不足。设计工程师必须考虑在满足灯具尺寸、成本、照明效果等要求的前提下,为LED灯具提供有效的过电应力冲击保护设计。本文就LED灯具过电应力冲击的故障现象、产生原因、解决办法予以简单论述。

Designer always cannot realize the importance of the electrical overstress（EOS）.The engineer must design some simple methods of protecting LEDs against EOS.The number or length of EOS events is irrelevant because any single EOS event can damage LED.This paper focuses on the phenomena,cause and solution of EOS.