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研究生:陳佳鴻
研究生(外文):Jia-HongChen
論文名稱:可調光發光二極體半橋LLC諧振驅動電路之研製
論文名稱(外文):Design and Implementation of a Dimmable LED Driver with Half-bridge LLC Resonant Converter
指導教授:梁從主
指導教授(外文):Tsrong-Jun Liang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:62
中文關鍵詞:半橋LLC諧振LED驅動電路脈波寬度調變調光
外文關鍵詞:half-bridge resonantLED driverpulse width modulation dimming
相關次數:
  • 被引用被引用:4
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  • 下載下載:96
  • 收藏至我的研究室書目清單書目收藏:0
本論文主要研製「可調光發光二極體半橋LLC諧振驅動電路」,此電路前級採用昇壓型功率因數修正電路,後級採用半橋諧振電路。功率因數修正電路採用連續電流模式並使用平均電流控制法來實現。半橋LLC諧振電路使功率開關具有零電壓切換及輸出二極體具有零電流切換以降低切換損失與頻率變化小。本論文首先探討半橋LLC諧振電路之工作原理、電壓增益分析及脈波寬度調變調光。最後實作150 W具調光發光二極體半橋LLC諧振驅動電路,輸入電壓為AC 90~264 Vrms,功率因數皆達0.98以上,效率最高達90.8%。
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%.
中文摘要 I
英文摘要 II
誌 謝 III
目 錄 IV
圖 目 錄 VI
表 目 錄 IX
第一章 緒論 1
1.1 研究背景與目的 1
1.2 研究內容 2
1.3 論文大綱 3
第二章 LED特性與驅動電路簡介 4
2.1 發光二極體簡介 4
2.2 功率因數修正電路介紹 7
2.2.1 簡介 8
2.2.2 昇壓型功率因數修正電路與控制模式介紹 9
2.3 發光二極體驅動電路 11
2.4半橋諧振轉換器介紹 14
2.5 調光驅動電路介紹 17
第三章 可調光發光二極體半橋LLC諧振驅動電路 20
3.1 主系統架構 20
3.2 半橋LLC諧振分析 20
3.3 半橋LLC諧振轉移函數分析 33
3.4 品質因數(Q)與K值之轉移函數分析 35
3.5 調光電路與發光二極體定電流模組 38
第四章 設計考量與實驗結果 39
4.1 前言 39
4.2 昇壓型功率因數修正電路之設計 40
4.3 半橋LLC諧振電路之設計 42
4.4 實作波形與數據分析 48
4.4.1 昇壓型功率因數修正電路 48
4.4.2 半橋LLC諧振電路與調光 50
第五章 結論與未來展望 58
5.1 結論 58
5.2 未來展望 58
參考文獻 60

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