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The Design and Implementation of Dimming Controller For Rolling Stock LED Lightings
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철도차량 LED 조명 조도제어기 설계 및 구현

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Type
Proceeding
Author
Chung Hyeon Hong (현대로템) Sang Ho Cha (현대로템) Ho Seang Gwak (현대로템)
Journal
The Korean Society For Railway 한국철도학회 학술발표대회논문집 한국철도학회 2015년 춘계학술대회
Published
2015.5
Pages
229 - 234 (6page)

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The Design and Implementation of Dimming Controller For Rolling Stock LED Lightings
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It has become a trend that the rolling stocks increase the usage of LED (Light Emitting Diode) Lighting because interest in the environment-friendly and efficiency of the application of the LED. This paper focuses on applications and design method of LED lightings which illumination level can be adjusted with brightness by using external sensor and controller, which are using the constant current control and PWM (Pulse Width Modulation) technology. The interior illumination level of LED lightings can be actively adjusted in a range of passenger’s comfort with the dimming controller using the external brightness detected by the sensor. This active dimming control finally make passengers could feel comfortable while his (or her) journey as well as the railway vehicle could save electric energy for lightings. The emergency lighting control using this technology is also introduced and proposed how to increase the safety in an emergency situation.
#LED #Dimming Controller #LED Dimming Control #Constant Current #PWM #Rolling Stock #조도제어기 #LED디밍제어 #정전류 #철도 차량

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