Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter
碩士 === 國立成功大學 === 電機工程學系碩博士班 === 100 === In this thesis, the design and implementation of a dimmable LED driver with half-bridge LLC resonant converter is presented. The front-stage of the proposed topology is a boost power factor correction circuit and the rear-stage is a half-bridge LLC resonant c...
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ndltd-TW-100NCKU54420632015-10-13T21:33:37Z http://ndltd.ncl.edu.tw/handle/68670695458781864315 Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter 可調光發光二極體半橋LLC諧振驅動電路之研製 Jia-HongChen 陳佳鴻 碩士 國立成功大學 電機工程學系碩博士班 100 In this thesis, the design and implementation of a dimmable LED driver with half-bridge LLC resonant converter is presented. The front-stage of the proposed topology is a boost power factor correction circuit and the rear-stage is a half-bridge LLC resonant circuit. To make the PFC circuit operated in continuous conduction mode, a average current controller is used. The half-bridge LLC resonant converter enables the MOSFETs to operate at zero voltage switching and output diode to achieve zero current switching. The voltage gain and operating principle of the half-bridge LLC resonant are presented. In addition, the pulse width modulation dimming function is discussed. Finally, a half-bridge LLC resonant LED driver is implemented with input voltage 90~264 Vrms, 150 W LED module in the laboratory. Experimental results show that the power factor is over 0.98 and the maximum efficiency is up to 90.8%. Tsrong-Jun Liang 梁從主 2012 學位論文 ; thesis 62 zh-TW |
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碩士 === 國立成功大學 === 電機工程學系碩博士班 === 100 === In this thesis, the design and implementation of a dimmable LED driver with half-bridge LLC resonant converter is presented. The front-stage of the proposed topology is a boost power factor correction circuit and the rear-stage is a half-bridge LLC resonant circuit. To make the PFC circuit operated in continuous conduction mode, a average current controller is used. The half-bridge LLC resonant converter enables the MOSFETs to operate at zero voltage switching and output diode to achieve zero current switching. The voltage gain and operating principle of the half-bridge LLC resonant are presented. In addition, the pulse width modulation dimming function is discussed. Finally, a half-bridge LLC resonant LED driver is implemented with input voltage 90~264 Vrms, 150 W LED module in the laboratory. Experimental results show that the power factor is over 0.98 and the maximum efficiency is up to 90.8%.
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Tsrong-Jun Liang |
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Tsrong-Jun Liang Jia-HongChen 陳佳鴻 |
author |
Jia-HongChen 陳佳鴻 |
spellingShingle |
Jia-HongChen 陳佳鴻 Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
author_sort |
Jia-HongChen |
title |
Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
title_short |
Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
title_full |
Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
title_fullStr |
Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
title_full_unstemmed |
Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter |
title_sort |
design and implementation of a dimmable led driver with half-bridge llc resonant converter |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/68670695458781864315 |
work_keys_str_mv |
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