Modelling reverse characteristics of power LEDs with thermal phenomena taken into account

39th International Microelectronics and Packaging IMAPS Poland 2015 Conference

无线电电子学

Ptak, Przemyslaw^1 ; Górecki, Krzysztof^1

Gdynia Maritime University, Department of Marine Electronics, Morska 83, Gdynia

81-225, Poland^1

关键词: Cooling conditions;    Experimental verification;    Network forms;    Optical power;    Reverse characteristics;    Reverse voltages;    Temperature influence;    Thermal phenomena;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/104/1/012012/pdf
DOI  :  10.1088/1757-899X/104/1/012012

来源: IOP

【 摘 要 】

This paper refers to modelling characteristics of power LEDs with a particular reference to thermal phenomena. Special attention is paid to modelling characteristics of the circuit protecting the considered device against the excessive value of the reverse voltage and to the description of the temperature influence on optical power. The network form of the worked out model is presented and some results of experimental verification of this model for the selected diodes operating at different cooling conditions are described. The very good agreement between the calculated and measured characteristics is obtained.