摘要
为精确描述大功率LED(Light Emitting Diode)的伏安特性,将经典的肖克莱方程与LED物理模型结合进行理论推导,对所得方程进行泰勒展开,并对该模型进行分段处理,构建了大功率LED的电学参数模型。通过实测大功率LED的伏安特性数据验证了本模型比经典PN结模型更接近实际的伏安特性曲线,与实测曲线一致性更高,误差在1%以内。
In order to accurately describe the volt-ampere characteristics of high-power LED（Light Emitting Diode）,the classical Shockley equation is combined with the LED physical model to deduce the theory,the Taylor equation is developed and the model is segmented to construct the electrical parameter model of high power LED.The volt-ampere characteristic curve of the high-power LED is verified to be closer to the actual voltampere characteristic curve than the classical PN junction model,which is more consistent with the measured curve,and the error is less than 1%.
出处
《吉林大学学报（信息科学版）》
CAS
2018年第1期108-112,共5页
Journal of Jilin University（Information Science Edition）
基金
吉林大学大学生创新创业基金资助项目(2016B65656)
关键词
大功率LED
泰勒展开
分段处理
电学参数模型
伏安特性
high power light emitting diode（LED）
Taylor expansion
segment processing
electrical parameter model
volt-ampere characteristics
