Light & Engineering 32 (5) 2024

Volume 32
Date of publication 10/11/2024
Pages 73–79

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Modelling of Power Supply for LED Luminaire L&E, Vol.32, No.5, 2024

Articles authors:

Nina P. Nestеrkina, Ilya A. Oleynik, Yulia A. Zhuravlyova

Nina P. Nesterkina, engineer. She graduated from the National Research Mordovian State University named after N.P. Ogarev in 1975, specializing in Lighting Engineering and Light Sources. At present, she is the Senior Lecturer at the Lighting Engineering Department of the Institute of Electronics and Lighting Engineering of the National Research Mordovian State University named after N.P. Ogarev. Her research interests are discharge and LED light sources, lighting installations, electronic components

Ilya A. Oleynik, first-year master’s student of N.P. Ogarev Mordovia State University in field of electronics and nanoelectronics, course of study: Theoretical and applied light and engineering. His research interests: LED light sources, computer modelling, design and calculation of lighting devices, design of irradiating devices with LEDs, power supplies for LEDs

Yulia A. Zhuravlyova, Ph. D. in Technical Science, Associate Professor. She graduated in 2010 from N.P. Ogarev Mordovia State University, majoring in lighting engineering and light sources. At present, she is an Associate Professor of the Electronics Department of RTU MIREA and Associate Professor of the National Research University Moscow Power Engineering Institute. Area of her expertise: energy-saving, lighting installations, modern discharge and LED light sources, electronic components

Abstract:

Power supply is an important part of the design of any lighting devices with light emitting diodes (LEDs), which provides stable operation of LEDs and, at the same time, stable electrical and lighting parameters of the lighting device as a whole. The purpose of this work was to create a model of the power supply circuit for a luminaire with LEDs and analyse its operation. Modelling of the circuit was carried out in the calculation for an allowable load of no more than 70 W. This value was chosen according to its versatility and the greatest demand in the market of power supplies for lighting devices with LEDs. The simulated circuit of the power supply source, based on the power factor corrector for a light device with LED using the program “Micro-Cap”, is presented in the article. The analysis of the circuit operation in working and emergency modes is carried out. The simulation results are presented in the form of graphs of the time dependence of the main circuit parameters. The principle of controlling the current of the LED and the purpose of functional units of the circuit and outputs of the microcircuit (type MS33262) are described. The purpose of each structural element used in the circuit is specified. The modelled circuit has a power factor which is at least 0.98. The protection device PS triggers normally and the power factor corrector together with the appropriate electronic harness provides stable operation of the circuit for a light device with a 70 W LED.

References:

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Keywords

DOI: https://doi.org/10.33383/2024-013

Article in RUS:
Svetotekhnika # 4, 2024, pp. 77–81

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