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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Main Authors: CING-DE WU, 吳清德
Other Authors: Yu-Kang Lo
Format: Others
Language:zh-TW
Published: 2012
Online Access:http://ndltd.ncl.edu.tw/handle/96014913057916687180
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spelling 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
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 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.
author2 Yu-Kang Lo
author_facet Yu-Kang Lo
CING-DE WU
吳清德
author CING-DE WU
吳清德
spellingShingle 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
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