臺灣博碩士論文加值系統

共振式轉換器目前已經被大量運用各類高頻切換式轉換器並以取代傳統硬切換式轉換器，原因在於共振式轉換器具有電路體積小，重量輕，低切換損失以及高效率等優點，且會因為共振槽內電容和電感不同的組合方式而產生不同的共振效果與型式，而且共振式轉換當開關在切換時可以達到零電流切換(Zero Current Switching，ZCS)或零電壓切換(Zero Voltage Switching，ZVS)可減少開關在切換時所造成的切換損失，提高轉換器的效率。
有別於一般傳統D類共振式轉換器需要兩個功率開關相較之下，本文所提出一個新型E類單切換開關零電流切換串並聯共振式轉換器，使用單一個開關來減少開關上的切換損失，在電路的整體效率上有明顯的提高。
最後針對轉換器的操作原理實做E類轉換器，並且利用實驗結果以及電腦模擬驗證理論的分析，實驗結果令人滿意，本論文所提出的轉換器效率最高可以達到92％的轉換效率。

Because of the advantages of small circuit size, light weight, low switching loss and high efficiency, resonant converters have now been widely used in various kinds of high-frequency switching converters to replace traditional hard-switching ones. The different combinations of the capacitance and inductance in resonant tank can produce different resonant effects and patterns. Besides, a resonant converter can also achieve ZCS (Zero Current Switching) or ZVS (Zero Voltage Switching) at the time of switching, which can reduce switching losses and enhance the efficiency of converters.
Different from traditional class-D resonant converters that require two power switches, the class-E single-switch, ZCS, series-parallel resonant converter presented in this study used only a single switch to lower switching losses to significantly improve overall circuit efficiency.
In this study an class-E converter was made based on the operation principle of converters, and the results of experiment and computer simulation analysis were satisfactory. The conversion efficiency of the converter could
reach up to 92%.

中文摘要 I
英文摘要 III
目錄 VI
圖目錄 IX
表目錄 XIV
第一章緒論 1
1.1 研究動機 1
1.2 研究目的 2
1.3 研究綱要 3
第二章轉換器介紹 5
2.1 轉換器的分類 5
2.1.1線性電壓調整器 6
2.1.2 切換式轉換器 8
2.2共振式轉換器 12
2.2.1 傳統共振式轉換器 12
2.2.2 半共振式轉換器 13
2.3柔式切換轉換器 14
第三章E類共振式換流器 17
3.1 E類共振換流器 17
3.2 E類換流器電路工作模式 18
3.3硬式切換與柔性切換 27
第四章單切換開關零電流切換串並聯負載共振式轉換器之電路架構 29
4.1單切換開關零電流型串並聯共振式轉換器的電路架構 29
4.2 E類串並聯負載共振式轉換器工作模式 31
4.3單切換開關零電流切換串並聯共振式轉換器公式推導 37
第五章 模擬與實際測量結果 54
5.1單切換開關零電流切換串並聯共振式轉換器模擬參數 54
5.2 電路圖模擬與實測波形 56
第六章結論與未來研究方向 73
6.1 結論 73
6.2 未來研究方向 73
參考文獻 75
圖目錄
圖2-1 基本線性調整器 6
圖2-2線性電力轉換器 7
圖2-3 基本切換式轉換器(A)主電路(B)負載輸出波形 8
圖2-4切換式電力轉換器 10
圖2-5共振式ZVS開關損失圖 14
圖2-6柔式切換ZVS PWM開關損失圖 15
圖2-7柔式切換ZVT開關損失圖 16
圖3-1 E類換流器電路圖 18
圖3-2 E類換流器等效電路圖 19
圖3-3 E類共振換流器之最佳化理想工作模式 21
圖3-4 E類共振換流器最佳化工作模式(D=0.5) 22
圖3-5 E類共振換流器次佳化第一型工作模式LF 23
圖3-6E類共振換流器次佳化第一型工作模式 24
圖3-7 E類共振換流器次佳化第二型工作模式 25
圖3-8 E類共振換流器次佳化第二型工作模式 26
圖3-9硬式切換電流與電壓波形 27
圖3-10柔性切換電壓與電流波形 28
圖4-1單切換開關零電流型串並聯負載共振式轉換器 30
圖4-2單切換開關零電流型串並聯負載共振式轉換器系統方塊圖 30
圖4-3E類串並聯負載共振式轉換器工作模式 34
圖4-4 E類串並聯負載共振式轉換器工作模式一 35
圖4-5 E類串並聯負載共振式轉換器工作模式二 35
圖4-6 E類串並聯負載共振式轉換器工作模式三 35
圖4-7 E類串並聯負載共振式轉換器工作模式四 36
圖4-8 E類串並聯負載共振式轉換器工作模式五 36
圖4-9 E類串並聯負載共振式轉換器工作模式六 36
圖4-10單切換開關零電流型串並聯負載共振式轉換器 37
圖4-11電壓源驅動整流器 38
圖4-12電壓驅動整流器元件上的波形 39
圖4-13單切換開關零電流型串並聯負載共振式轉換器電路推導 41
圖4-14 E類零電流轉換器電路圖 42
圖4-15 E類零電流轉換器的等效電路圖 42
圖5-1單切換開關零電流切換串並聯共振式轉換器模擬圖 54
圖5-2驅動電壓VGS與開關電壓VDS實測波形圖 58
圖5-3驅動電壓VGS與開關電壓VDS模擬波形圖 58
圖5-4儲能電感電壓VLF與儲能電感電流ILF實測波形圖 59
圖5-5儲能電感電壓VLF與儲能電感電流ILF模擬波形圖 59
圖5-6驅動電壓VGS與開關電流IS1實測波形圖 60
圖5-7驅動電壓VGS與開關電流IS1模擬波形圖 60
圖5-8共振電容電壓VC1與共振電容電流IC1實測波形圖 61
圖5-9共振電容電壓VC1與共振電容電流IC1模擬波形圖 61
圖5-10共振電感電壓VL與共振電感電流IL實測波形圖 62
圖5-11共振電感電壓VL與共振電感電流IL模擬波形圖 62
圖5-12並聯共振電容電壓VCS與並聯共振電容電流ICS實測波形圖 63
圖5-13並聯共振電容電壓VCS與並聯共振電容電流ICS模擬波形圖 63
圖5-14共振槽輸出電壓VB與共振槽輸出電流IB實測波形圖 64
圖5-15共振槽輸出電壓VB與共振槽輸出電流IB模擬波形圖 64
圖5-16二極體VD1上電壓VD1電流ID1實測波形圖 65
圖5-17二極體VD1上電壓VD1電流ID1模擬波形圖 65
圖5-18二極體VD2上電壓VD2電流ID2實測波形圖 66
圖5-19二極體VD2上電壓VD2電流ID2模擬波形圖 66
圖5-20二極體VD3上電壓VD3電流ID3實測波形圖 67
圖5-21二極體VD3上電壓VD3電流ID3模擬波形圖 67
圖5-22二極體VD4上電壓VD4電流ID4實測波形圖 68
圖5-23二極體VD4上電壓VD4電流ID4模擬波形圖 68
圖5-24濾波電感電壓VLO與濾波電感電流ILO實測波形圖 69
圖5-25濾波電感電壓VLO與濾波電感電流ILO模擬波形圖 69
圖5-26濾波電容電壓VCO與濾波電容電流ICO實測波形圖 70
圖5-27濾波電容電壓VCO與濾波電容電流ICO模擬波形圖 70
圖5-28輸出電壓VO與輸出電流IO實測波形圖 71
圖5-29輸出電壓VO與輸出電流IO模擬波形圖 71
圖5-30 單切換開關零電流切換串並聯共振式轉換器驅動電路實作圖 72
圖5-31 單切換開關零電流切換串並聯共振式轉換器電路實作圖 72
表目錄
表2-1 線性式電壓調整器與切換式電力轉換器比較 11
表5-1單切換開關零電流切換串並聯共振式轉換器實際測量參數 55

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