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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 陳秋麟 | |
dc.contributor.author | Chien-Liang Chen | en |
dc.contributor.author | 陳建良 | zh_TW |
dc.date.accessioned | 2021-06-08T05:12:30Z | - |
dc.date.copyright | 2006-07-25 | |
dc.date.issued | 2006 | |
dc.date.submitted | 2006-07-19 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/23918 | - |
dc.description.abstract | 本論文主要在討論具功因校正之浮動式全橋相移式外部電極螢光燈管驅動電路,在傳統的二級式燈管驅動電路中,輸入交流電壓先經由交流/直流轉換器將電壓降壓為12V或24V的直流之後,再經由升壓式轉換器升壓至外部電極螢光燈管所需的起動電壓而將燈管點亮,此項工作方式會因變壓器的匝數比隨著燈管起動電壓越來越高及開關損耗過大使得整體效率因而降低,同時也會產生散熱、電磁干擾、及功因不佳等問題。傳統冷陰極管在驅動上無法作多燈管並聯的使用,使得換流器的數目增加,不但帶來切換損失,同時也降低電路效率。
針對以上的缺點,本文使用升壓式轉換電路做為主動功因校正器架構,進行交流/直流轉換提供給全橋相移式換流器作為穩定的電壓輸入,並且達到很高的功率因數。使用全橋相移式脈波寬度調變極控制,使換流器在切換過程達零電壓切換,降低切換過程的損耗,燈管採用外部電極螢光燈管,由於可直接並聯使用,在應用於多燈管的系統上可減少換流器的數目。燈管驅動方式採用浮動式全橋驅動,可降低應用長燈管時的變壓器匝數比,最後綜合以上的方式實作一台外部電極螢光燈驅動電路,以實驗結果驗證理論分析。 | zh_TW |
dc.description.abstract | The aim of this thesis is to study and implement a high power factor floating full-bridge phase-shifted pulse-width-modulation converter for driving the external electrode fluorescent lamps. A high power factor and high efficiency is easily achieved by using a boost power factor corrector in the front stage to produce a high output voltage for the inverter stage.
To attain a high conversion efficiency of the inverter, the phase shift full bridge converter which can achieve zero voltage switching operations is used. The external electrode fluorescent lamps which can be directly paralleled with each other is adopted to reduce the quantity of inverters. The total performance is greatly improved as compared with the traditional two-stage driver, where the poor power factor, low efficiency, and unable to parallel lamps directly characteristics make it not suitable for paralleled lamps applications. The theoretical analysis is then verified by experiments on the implemented prototype. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T05:12:30Z (GMT). No. of bitstreams: 1 ntu-95-P93943004-1.pdf: 1067664 bytes, checksum: daec61b585cb0e7e706dba0733b3490e (MD5) Previous issue date: 2006 | en |
dc.description.tableofcontents | 第一章 緒論
1.1 研究背景與動機……………………………………….……………………1 1.2 內容簡介……………………………………………….……………………7 第二章 功率因數校正 2.1 功率因數定義………………………………………….……………………9 2.2 主動式功因校正……………………………………..……………………..11 2.2.1 功因校正電路架構與原理……..……………..…………………..…11 2.2.2 功因校正電路設計與製作………………………………..…………16 第三章 全橋相移式換流器 3.1 全橋換流器………………………………..………………..………………26 3.2 柔性切換……………………………………..……………………………..27 3.3 相移式動作原理……………………………..………………………..……30 第四章 諧振網路 4.1 串聯諧振串聯負載網路………………………..…………………….…….36 4.2 串聯諧振並聯負載網路…………………………...……………………….37 4.3 串聯諧振串並聯負載網路………………………..……………………..…39 4.4 串聯諧振網路的比較………………………………..……………………..40 第五章 電路設計與製作 5.1 控制電路……………………………………………..………………..……42 5.2 保護電路…………………………………………..………………..………49 5.2.1 燈管開路保護………………………..………..……………………..49 5.2.2 過電壓保護…………………………..…..…………………..………50 5.2.3 過電流保護…………………..………………..…….……………….51 5.3 零件選擇考量…………………..…………………………………………..52 5.4 實驗波形………………………..…………………………………………..53 第六章 結論與未來展望 6.1 結論……………………………..…………………………………..………60 6.2 未來展望…………………..…………………………………………..……60 參考文獻………………………………………………………………………..……62 | |
dc.language.iso | zh-TW | |
dc.title | 具功因校正之浮動式全橋相移式外部電極螢光燈管驅動電路 | zh_TW |
dc.title | Floating Full Bridge Phase Shift Driving Circuit with Power Factor Corrected for External Electrode Fluorescent Lamps | en |
dc.type | Thesis | |
dc.date.schoolyear | 94-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 林宋宜,洪國強,羅新臺,王弘毅 | |
dc.subject.keyword | 浮動式全橋,功因校正,外部電極螢光燈, | zh_TW |
dc.subject.keyword | Floating Full Bridge,Power Factor Corrector,EEFL, | en |
dc.relation.page | 64 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2006-07-19 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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