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研究生:林冠宇
研究生(外文):Guan-Yu Lin
論文名稱:新型疊接昇壓轉換器之研製
論文名稱(外文):Implementation of a Novel Cascoded Step-Up Converter
指導教授:鄭銘揚鄭銘揚引用關係陳建富陳建富引用關係
指導教授(外文):Ming-Yang ChengJiann-Fuh Chen
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系專班
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:2009
畢業學年度:97
語文別:中文
論文頁數:64
中文關鍵詞:返馳式轉換器昇降壓轉換器疊接架構漏感能量
外文關鍵詞:Flyback converterleakage inductorcascodedBuck-Boost converter
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  • 被引用被引用:0
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  • 下載下載:31
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本論文提出新型疊接昇壓型轉換器架構。傳統返馳式轉換器因漏感能量無法有效被利用,採用兩組昇降壓型轉換器與返馳式轉換器相互疊接方式,能有效將漏感能量傳送至輸出之電路,可降低功率元件應力,以提高整體之效率。而電路架構的輸出端電壓疊加輸入電壓,藉以提高電壓轉換比。文中首先探討由傳統架構如何延伸至疊接架構,其次說明新型疊接昇壓型轉換器之動作原理與設計考量。最後實作一輸入直流電壓24V、直流輸出電壓48V、輸出功率144 W之新型疊接昇壓型轉換器,以實驗結果驗證理論分析。
In this thesis, a novel cascoded converter is proposed. Talking about the conventional Flyback converter, the energy of leakage inductor can not be used efficiently. Both the Buck-Boost converter and the Flyback converter are combined to make the energy of leakage inductor transfer to output load. Additionally, the stress of the power elements is reduced to enhance the whole efficiency. The transfer voltage ratio is increased by casecoding the input power supply with bulky output capacitors. First, the development procedure from traditional topology to casecoded topology is discussed. Second, the operation principles and design considerations of the proposed cascoded converter are discussed. Finally, a cascoded converter with input voltage 24V, output voltage 48V, and output power 144W is implemented. The results of this experiment are used to verify the analysis of theories.
摘 要..................................................................................................................... I
致 謝........................................................................... III
圖 目 錄......................................................................................................... VII
表 目 錄............................................................................................................X
第一章 緒論 1
1.1 研究背景 1
1.2 研究內容與目的 2
1.3 論文架構簡介 2
第二章 高電壓轉換比之轉換器架構簡介 4
2.1 傳統式昇降壓型轉換器 5
2.2 傳統式返馳式轉換器 6
2.3 耦合電感昇壓型轉換器 7
2.4 被動箝位之耦合電感昇壓型轉換器 8
2.5 高效率之昇壓返馳型轉換器 9
2.6 比較與討論 11
第三章 新型疊接昇壓型轉換器之分析與設計 13
3.1系統架構 13
3.2 理想電路下之穩態電路動作原理分析 15
3.2.1 理想電路下之連續導通模式 15
3.2.2 理想電路下之邊界導通模式 20
3.2.3 理想電路下之不連續導通模式 21
3.3 新型疊接昇壓型轉換器之效率分析 28
第四章 電路元件設計準則與回授補償 36
4.1 儲存電感設計準則 36
4.2 儲能電容設計準則 37
4.3 功率開關設計準則 38
4.4 元件設計之選用 39
4.4控制IC UC3843 簡介 40
4.5 迴授電路及補償器設計 42
4.6 開迴路量測 43
4.7 補償器選用 45
4.8 閉迴路分析 46
第五章 模擬與實驗結果 49
5.1 電路模擬與量測波形 50
5.1.1 電路模擬 50
5.1.2 量測波形 54
5.2 理論與實際比較與討論 60
第六章 結論與未來展望 61
6.1結論 61
6.2 未來展望 62
參考文獻 63
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[11]J. F. Chen, W. S. Liu, R. L. Lin, T. J. Liang and C. H. Liu, “High-Efficiency Cascode Forward Converter of Low Power PEMFC System” IEEE Proc IPEMC’06, Vol. 1 pp. 1-7, Aug. 2006.
[12]T J. Liang and K C. Tseng, "Analysis of Integrated Boost-Flyback Step-up Converter," IEE Proceedings B, vol. 152, No.2, pp. 217-225, March 2003.
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