A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications
碩士 === 國立臺灣科技大學 === 電子工程系 === 100 === This thesis aims to study the driving and dimming circuits by using the digital control for high-brightness LED lamps. Conventional LED driver consists of a power factor corrector and a DC/DC converter to achieve high power factor and good current regulation. Th...
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ndltd-TW-100NTUS54281712015-10-13T21:17:26Z http://ndltd.ncl.edu.tw/handle/96014913057916687180 A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications LED照明應用之高效率雙匯流排數位調光技術 CING-DE WU 吳清德 碩士 國立臺灣科技大學 電子工程系 100 This thesis aims to study the driving and dimming circuits by using the digital control for high-brightness LED lamps. Conventional LED driver consists of a power factor corrector and a DC/DC converter to achieve high power factor and good current regulation. This thesis studies a single-stage flyback PFC converter to reduce the component count and raise the conversion efficiency. A twin-bus dimming circuit is also developed to reduce the switch stresses. The operation principles and design considerations of the studied LED driver are analyzed and discussed. A laboratory prototype is designed and tested to verify the feasibility. According the experimental verifications, the overall conversion efficiency can be effectively improved. And digital dimming function is also fulfilled. Yu-Kang Lo Huang-Jen Chiu 羅有綱 邱煌仁 2012 學位論文 ; thesis 83 zh-TW |
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碩士 === 國立臺灣科技大學 === 電子工程系 === 100 === This thesis aims to study the driving and dimming circuits by using the digital control for high-brightness LED lamps. Conventional LED driver consists of a power factor corrector and a DC/DC converter to achieve high power factor and good current regulation. This thesis studies a single-stage flyback PFC converter to reduce the component count and raise the conversion efficiency. A twin-bus dimming circuit is also developed to reduce the switch stresses. The operation principles and design considerations of the studied LED driver are analyzed and discussed. A laboratory prototype is designed and tested to verify the feasibility. According the experimental verifications, the overall conversion efficiency can be effectively improved. And digital dimming function is also fulfilled.
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Yu-Kang Lo |
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Yu-Kang Lo CING-DE WU 吳清德 |
author |
CING-DE WU 吳清德 |
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CING-DE WU 吳清德 A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
author_sort |
CING-DE WU |
title |
A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
title_short |
A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
title_full |
A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
title_fullStr |
A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
title_full_unstemmed |
A High-Efficiency Twin-Bus Digital Dimming Technique for LED Lighting Applications |
title_sort |
high-efficiency twin-bus digital dimming technique for led lighting applications |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/96014913057916687180 |
work_keys_str_mv |
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