20.500.12556/RUL-152567 Zatemnjevanje sodobnih svetlobnih virov Dimming of Modern Lighting Devices Diplomsko delo obravnava zatemnjevanje sodobnih svetlobnih virov, zlasti LED sijalk. Raziskane so različne metode in tehnologije za prilagajanje svetlobe potrebam uporabnika. Analizirani so obnašanje in potrebe sijalk, vključno z njihovimi gonilniki. Zasnovana in izdelana sta dva različna tipa zatemnilnikov: fazni, ki omogoča sprednje- in zadnje-robno zatemnjevanje raznih sijalk, in PWM LED, ki omogoča prilagodljivo zatemnjevanje LED trakov. Posamezni sklopi obeh zatemnilnikov so podrobno razloženi in programsko simulirani. Za oba zatemnilnika so izdelane sheme in tiskana vezja. Izdelan je program s preprostim vmesnikom za preizkus delovanja. Izvedene so meritve izhodnih signalov z osciloskopom, ki preverijo uspešnost delovanja zatemnilnikov v realnih pogojih, in toplotne meritve, ki preverijo njuno termalno zmogljivost. The thesis addresses the dimming of modern light sources, particularly LED bulbs. Various methods and technologies for adjusting light to user needs are explored. The behavior and requirements of bulbs, including their drivers, are analyzed. Two different types of dimmers are designed and constructed: a phase dimmer, which enables both leading-edge and trailing-edge dimming of various bulbs, and a PWM LED dimmer, allowing flexible dimming of LED strips. The individual components of both dimmers are thoroughly explained and programmatically simulated. Schematics and printed circuit boards are created for both dimmers. A program with a user-friendly interface for testing purposes is developed. Measurements of output signals using an oscilloscope are conducted to verify the dimmers' performance under real-world conditions, along with thermal measurements to assess their thermal capability. svetlobni viri LED sijalke LED trakovi zatemnjevanje fazni zatemnilnik PWM zatemnilnik light sources LED bulbs LED strips dimming phase dimmer PWM dimmer true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-11-29 07:54:42 2023-11-29 07:54:42 2023-12-01 08:53:34 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 62423 170295555 Kalan_Gregor_-_Zatemnjevanje_sodobnih_svetlobnih_virov.pdf Kalan_Gregor_-_Zatemnjevanje_sodobnih_svetlobnih_virov.pdf 1 72F207802D62022870691753040945F8 eeeed6c750beadadcc37eb3de53464ba22febb77c52b4d0000051a611de276ec 2d12449a-8e84-11ee-9c6c-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178110 Fakulteta za elektrotehniko 0 0 0