臺灣博碩士論文加值系統

本文著重於具有降壓功能之非接觸式電源轉換器之研製，透過數位訊號處理器（Digital signal processor， DSP）輸出固定頻率且互補之驅動信號，使諧振槽元件產生諧振現象達成變壓器一次側功率開關具有零電壓切換及二次側整流二極體零電流切換，以提高轉換器的效率。而且使用非接觸式變壓器設計，製作出非接觸式電能傳輸之電路，並藉由Buck Converter完成穩壓的功能。
最後由實驗結果證明，在輸入電壓155V，輸出12V/100W時，轉換器的最高效率可到80%。

This paper focuses on the design and implementation of a non-contact power converter with a step-down function. The digital signal processor (DSP) outputs a fixed frequency and complementary drive signal to cause resonance of the resonant tank component. The primary side of the transformer, the power switch has zero voltage switching and secondary side rectified diode zero current switching to improve converter efficiency. And using a non-contact transformer design, the circuit of non-contact power transmission is made, and the voltage regulation function is completed by Buck Converter.
Finally, the experimental results show that the maximum efficiency of the converter can reach 80% when the input voltage is 155V and the output is 12V/100W.

摘要.........................................................................i
Abstract....................................................................ii
誌謝........................................................................iii
目錄.........................................................................iv
表目錄.......................................................................vi
圖目錄......................................................................vii
第一章 緒論..................................................................1
1.1 研究動機..............................................................1
1.2 研究方法..............................................................2
1.3 文獻回顧 .............................................................2
1.4 內容大綱 .............................................................3
第二章 LLC諧振轉換器架構原理與動作狀態分析.....................................4
2.1 硬性切換與柔性切換技術.................................................4
2.1.1 硬性切換..............................................................4
2.1.2 柔性切換..............................................................4
2.2 LLC諧振轉換器簡介......................................................5
2.3 LLC諧振轉換器動作狀態分析...............................................8
2.3.1 LLC串聯諧振轉換器電路ZVS Region1電路動作狀態分析.........................9
2.3.2 LLC串聯諧振轉換器電路ZVS Region2電路動作狀態分析........................16
2.4 諧振槽分析與模擬......................................................22
第三章 非接觸式轉換器設計與實現...............................................27
3.1 LLC諧振轉換器設計步驟.................................................27
3.1.1 設定變壓器之匝數比n...................................................28
3.1.2 設計最大激磁電感Lm-max................................................28
3.1.3 設計最小諧振電容Cr-min................................................29
3.1.4 設計諧振電感Lr........................................................29
3.1.5 功率開關之選擇........................................................29
3.1.6 整流二極體之選擇......................................................30
3.1.7 非接觸式變壓器設計....................................................30
3.2 Buck降壓轉換器設計步驟：..............................................33
3.2.1 Buck降壓轉換器簡介....................................................33
3.2.2 電感設計..............................................................35
3.2.3 輸出濾波電容選擇......................................................36
3.2.4 主開關與同步開關之選擇.................................................38
3.3 電路模擬與分析........................................................38
第四章 控制方式設計..........................................................41
4.1 LLC諧振轉換器之控制電路設計............................................41
4.2 Buck之控制電路設計....................................................43
第五章 非接觸式轉換器實作與數據...............................................49
5.1 LLC諧振轉換器電路量測波形..............................................49
5.1.1 死區時間..............................................................49
5.1.2 諧振特性..............................................................50
5.1.3 零電壓切換............................................................52
5.2 效率量測..............................................................57
第六章 結論與未來展望........................................................59
6.1 結論.................................................................59
6.2 未來展望..............................................................59
參考文獻......................................................................60
Extended Abstract............................................................62
Abstract.....................................................................62
Chapter 1 Introduction.......................................................63
Chapter 2 LLC-SRC Introduction...............................................63
Chapter 3 Non-contact converter design and implementation....................64
Chapter 4 Control design.....................................................64
Chapter 5 Non-contact converter implementation and data......................64
Chapter 6 Conclusions and Future.............................................65

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