Research and Modelling on Electrical and Thermal Mode of LEDs Operation in the Luminaire-Reference-Cited by-同舟云学术

Research and Modelling on Electrical and Thermal Mode of LEDs Operation in the Luminaire

Published:2018-10 Issue: Volume: Page:155-162
ISSN:2541-9935
Container-title:Light & Engineering
language:en
Short-container-title:L&E

Author:

Kapitonov Sergei S.¹,Kapitonova Anastasia V.¹,Grigorovich Sergei Yu.¹,Medvedev Sergei A.¹,Sobhy Taher¹

Affiliation:

1. National Research Ogarev Mordovia State University

Abstract

In the article, the electrical and thermal processes in the LED lamp with varied parameters are investigated. Voltage and current measurements on all LEDs of the luminaire are carried out in the nominal operating mode. The power allocated to each LED is determined. The calculation of the LED crystal temperature was carried out using the developed thermal LED model based on the results of the measurements and by using “Multisim” program. It has been established that the temperature of the crystals of individual LEDs in the luminaire differ significantly, which leads to unfavourable thermal conditions for them and an increased likelihood of premature failure.

Publisher

Redakcia Zhurnala Svetotekhnika LLC

Subject

General Medicine

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