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研究生:陳柏佐
研究生(外文):Po-tso Chen
論文名稱:具可變電感之雙開關順向式零電流切換轉換器之研製
論文名稱(外文):Design and Implementation of a ZCS Two-Switch Forward Converter with Variable-inductor
指導教授:梁從主鄭銘揚鄭銘揚引用關係
指導教授(外文):Tsorng-Juu LiangMing-Yang Cheng
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:2009
畢業學年度:97
語文別:中文
論文頁數:77
中文關鍵詞:準諧振雙開關順向式轉換器可變電感零電流切換
外文關鍵詞:two-switch forward convertervariable-inductorzero-current-switchingquasi-resonant
相關次數:
  • 被引用被引用:3
  • 點閱點閱:277
  • 評分評分:
  • 下載下載:75
  • 收藏至我的研究室書目清單書目收藏:0
本論文以具有零電流切換之雙開關順向式電源轉換器為主體,簡介使用之準諧振切換技術,分析與設計其元件參數值,並調整諧振槽之電感,降低重載時之電路切換頻率與輸出二極體上之電流峰值,提升轉換器效率並減少切換頻率之變化量。最後實際研製一雙級式電源轉換器,前級使用升壓式功因修正電路,並輔以零電流切換雙開關順向式轉換器為後級,輸入交流電壓範圍為90 V∼264 V,輸出電壓48 V、輸出功率384 W,藉以驗證理論參數值之正確性。
In this thesis, a zero-current-switching two-switch forward converter is presented. The variable-inductor in the resonant bank is used to reduce the switching losses and the peak value of output-diode current. Namely, the system-efficiency can be improved. Moreover, the operating principle and the design criteria are discussed in detailed. Finally, a prototype two-stage circuit is implemented to verify the performance. The front-stage is a boost converter with power-factor-correction(PFC) function and the second-stage is the proposed circuit with input voltage 90-264 V, output voltage 48 V, and output power 384 W.
摘 要 I
Abstract II
誌 謝 III
第一章 緒論 1
1.1 研究背景 1
1.2 研究目的 3
1.3 本文架構簡介 4
第二章 電源轉換器架構與準諧振技術簡介 5
2.1 交流-直流功因修正電路 6
2.2 直流-直流順向式轉換器架構介紹 11
2.2.1 輔助繞組順向式轉換器 11
2.2.3 Vinciarelli順向式轉換器 14
2.2.4主動箝位順向式轉換器 16
2.2.5雙開關順向式轉換器 17
2.3 準諧振技術 19
2.3.1零電壓準諧振切換 19
2.3.2零電流準諧振切換 22
第三章 可變電感與零電流切換雙開關順向式轉換器 25
3.1 零電流切換雙開關順向式轉換器 26
3.1.1 主電路架構簡介 26
3.1.2 電路動作模式分析 27
3.1.3 電路穩態分析 37
3.1.4 切換頻率與電壓增益之關係 39
3.2 可變電感介紹 41
第四章 設計考量與實驗結果分析 43
4.1 系統規格與元件參數設計 43
4.2 功率因數修正電路之元件參數設計 47
4.3 零電流切換雙開關順向式電路之元件參數設計 49
4.4 可變電感控制電路設計 52
4.5 控制器介紹 53
4.6 實作波形量測與電路特性探討 57
4.6.1 功因修正電路實測波形分析與討論 57
4.6.2 零電流雙開關順向式轉換器實驗波形分析與討論 63
4.6.3 具可變電感之主電路架構與傳統架構之實驗波形比較 65
4.6.4 系統效率分析與討論 70
第五章 結論與未來展望 73
5.1 結論 73
5.2 未來展望 74
參考文獻 75
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