Národní úložiště šedé literatury Nalezeno 1 záznamů.  Hledání trvalo 0.00 vteřin. 
Classification and modelling of LED light sources in terms of sensitivity to supply voltage fluctuations
Hudáč, Tomáš ; Kukačka, Leoš (oponent) ; Drápela, Jiří (vedoucí práce)
The aim of this thesis is to investigate and characterise the flicker performance of retrofit LED lamps currently available on the market, and to develop a model of an LED lamp. To find representative samples of LED lamps, market analyses has been carried out which shows the bestselling types. The results of the analysis have been obtained 31 samples. With different LED technologies and different power control options, such as wireless or triac. By performing measurements under the ideal power supply conditions and by disassembling certain samples have been overall identified 4 main classes with different driver topologies. Further were conducted tests on their flicker sensitivity and flicker immunity. By acquiring results from tests each driver topology has been rated by its overall flicker performance. In the end of a thesis Simulink is proposed model of a lamp which successfully simulated IH GF curves in comparison with measured values.

Viz též: podobná jména autorů
12 Kukačka, Libor
1 Kukačka, Lukáš
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