Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting
碩士 === 國立高雄應用科技大學 === 電機工程系 === 98 === In order to save the illumination electrical energy, this thesis used high-power white LED as the light source in designing indoor lamps. An AC-DC single-stage flyback converter was employed to implement the driving, and analog IC TDA4863 was used to achieve hi...
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ndltd-TW-098KUAS84420332015-10-13T18:58:40Z http://ndltd.ncl.edu.tw/handle/28604441302359307636 Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting 具序相脈波調光之LED室內照明研製 Yu-Shen Chen 陳昱慎 碩士 國立高雄應用科技大學 電機工程系 98 In order to save the illumination electrical energy, this thesis used high-power white LED as the light source in designing indoor lamps. An AC-DC single-stage flyback converter was employed to implement the driving, and analog IC TDA4863 was used to achieve high power factor and high efficiency features. In addition, this thesis proposed the phase-shifted PWM method to reduce electric drop of the power transistor of the dimming LED array. Finally the results of the above two sections were combined to produce a prototype of indoor lighting lamps, and different dimming ways of characteristics of the optical and circuit were also analyzed. The results confirm that phase-shifted PWM dimming can effectively improve the overall efficiency and reduce harmonic distortion. Ming-Tang Chen 陳明堂 2010 學位論文 ; thesis 93 zh-TW |
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碩士 === 國立高雄應用科技大學 === 電機工程系 === 98 === In order to save the illumination electrical energy, this thesis used high-power white LED as the light source in designing indoor lamps. An AC-DC single-stage flyback converter was employed to implement the driving, and analog IC TDA4863 was used to achieve high power factor and high efficiency features. In addition, this thesis proposed the phase-shifted PWM method to reduce electric drop of the power transistor of the dimming LED array. Finally the results of the above two sections were combined to produce a prototype of indoor lighting lamps, and different dimming ways of characteristics of the optical and circuit were also analyzed. The results confirm that phase-shifted PWM dimming can effectively improve the overall efficiency and reduce harmonic distortion.
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Ming-Tang Chen |
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Ming-Tang Chen Yu-Shen Chen 陳昱慎 |
author |
Yu-Shen Chen 陳昱慎 |
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Yu-Shen Chen 陳昱慎 Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
author_sort |
Yu-Shen Chen |
title |
Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
title_short |
Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
title_full |
Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
title_fullStr |
Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
title_full_unstemmed |
Implementation of A Phase-Shifted PWM Dimmer for LED Indoor Lighting |
title_sort |
implementation of a phase-shifted pwm dimmer for led indoor lighting |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/28604441302359307636 |
work_keys_str_mv |
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