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Information × Registration Number 0218U000762, 0113U000849 , R & D reports Title Electro - and lighting parameters modern semiconductor light sources popup.stage_title Head Pazdriy Ihor Rostyslavovych, Registration Date 13-02-2018 Organization Ternopol National Economic University popup.description2 The object of research is the influence of the supply of modern semiconductor light sources on their lighting parameters.The purpose of the work is to study the influence of electrical power parameters of modern semiconductor light sources on their light values, the development of LED power drivers, the development of an automated system for studying the characteristics of LED lighting.Methods of research - theoretical generalization and retrospective analysis, methods of simulation and physical modeling, analysis and synthesis, comparative analysis, expert assessments. An analytical review of the power drivers for light-emitting diodes has been carried out and their key features of electrical parameters have been considered. Analyzed drivers for LEDs with thermal protection circuits. The analysis of photometry features of LEDs is carried out. Based on the results of the study, the proposed driver inclusion scheme; calculated components of the PWM controller circuit; implemented circuit PWM-controller power management LEDs. The proposed scheme for thermal protection of the driver for powering the LEDs; implemented a scheme for temperature protection of drivers with a filter system. On the basis of the analysis of the photometric characteristics of light-emitting diodes, an automated device for measuring the spatial distribution of radiation, the total light (energy) flux, spectral distribution, and color characteristics is proposed. To automate the management of the measurement process, appropriate software was developed. The measurement process is performed automatically. At the end of the measurement, the results can be saved as a measurement log or as a spreadsheet that contains the values of the light forces in the respective directions. It is also possible to store measurement results, which can later be used in lighting modeling programs. Product Description popup.authors Ігнатєв Ігор Васильович Маслияк Богдан Олексійович popup.nrat_date 2020-04-02 Close