臺灣博碩士論文加值系統

本論文旨在研究非接觸式感應電能傳輸技術，並將其應用於小家電裝置之感應充電系統。文中首先探討非接觸式感應電能傳輸技術之基本原理及其應用範疇，進而論述影響系統操作之相關因素。就感應充電系統之耦合結構設計，係經由比較分析抉擇適當鐵芯結構，且針對所需補償電路進行分析及設計，再導入反射阻抗概念探討充電時負載電流變化對感應耦合之影響。非接觸式感應充電電路則採用雙閉迴路結構，俾維持感應耦合效率兼作過電流保護，並以2.5mm之氣隙規格進行系統電路參數設計。而後將所設計之感應充電系統予以電路實現，再用600mAh鋰電池作為充電負載，測試其於充電過程中隨充電電流變化時之耦合效率表現。經由實測驗證，本文所提非接觸式感應充電系統確具可行性，其於充電過程中之最高耦合效率可達82.1%。

This thesis investigates the contactless power transmission system with a small gap for small household electrical appliances’ inductive charging system. At first the applications and fundamental principles of contactless power transmission systems are studied, then the thesis followed by the discussion of the factors associated with the operating of system. The design of coupling structure is established by analyzing the comparison of different adequate cores. Then, the thesis focuses on the principle and design method of the compensation circuit to explain the practical design. The concept of reflected impedance is also introduced to understand the influence of the secondary load in the whole system. As for the circuit structure, it uses double closed-loop control to keep the coupling efficiency and provide overcurrent protection. Finally, this system is implemented in real circuit to be used to charge a 600mAh li-ion battery. The best coupling efficiency is 82.1% in charging processes with 2.5mm gap.

中文摘要 I
英文摘要 II
誌謝 III
目錄 IV
圖目錄 IX
表目錄 XVI
第一章 緒論 1
1-1 研究背景與目的 1
1-2 研究方法 5
1-3 論文大綱 6
第二章 感應耦合之原理分析 7
2-1 前言 7
2-2 感應線圈之動作原理 7
2-3 磁性材料 9
2-4 感應結構特性分析 10
2-5 感應結構之非理想效應與損耗 12
2-5-1集敷效應 12
2-5-2近接效應 15
2-5-3鐵芯之損耗 17
2-6 等效模型分析 18
2-7 變壓器耦合系數之量測 20
2-8 反射阻抗 21
2-9 次級側之耦合功率 23
第三章 系統之設計原理 24
3-1 前言 24
3-2 鐵芯結構選擇之考慮因素 24
3-3 鐵芯結構與磁路分析 27
3-4 非接觸式感應電能傳輸系統之耦合形式 30
3-5 RLC諧振之特性分析 31
3-5-1諧振原理 31
3-5-2 RLC串聯諧振 31
3-5-3 RLC並聯諧振 35
3-6 補償電路 37
3-6-1補償電路原理 37
3-6-2初級側之補償設計原理 39
3-6-3次級側之補償設計原理 40
3-7 加入補償電容之反射阻抗分析 41
3-7-1補償電容對反射阻抗之影響 41
3-7-2次級側採串聯電容補償之反射阻抗 44
3-7-3次級側採並聯電容補償之反射阻抗 48
3-8 補償電容之測試 52
3-9 負載變化對初級側諧振頻率之影響 55
3-10 控制電路之相關原理 57
3-10-1鎖相迴路之原理與使用 57
3-10-2磁滯比較器 59
3-11 充電電路 61
3-11-1二次電池之種類簡介 61
3-11-2充電策略 63
第四章 硬體電路之規劃與設計 67
4-1 前言 67
4-2 系統架構 67
4-3 驅動電路 69
4-3-1 D類半橋諧振電路 69
4-3-2半橋驅動IC 73
4-4 操作頻率之選擇 74
4-5 感應結構之選擇 75
4-6 繞組結構之設計 79
4-7 補償電路之設計 81
4-7-1補償電路之架構設計 81
4-7-2補償電容之設計 82
4-8 閉迴路設計 85
4-8-1諧振點追蹤電路 85
4-8-2待機狀態之設計 89
4-9 次級側之電路設計 97
4-9-1穩壓電路 97
4-9-2充電電路 98
4-10 整體電路之設計流程 99
第五章 模擬與實驗結果 102
5-1 前言 102
5-2 硬體電路之製作 102
5-3 系統測試 104
5-3-1諧振點追蹤控制實測 104
5-3-2耦合效率實測 104
5-3-3充電過程之系統實測 106
5-3-4氣隙改變之耦合效率實測 107
5-4 軟體模擬 108
5-5 系統之波形量測 110
第六章 結論與未來研究發展 114
6-1 結論 114
6-2 未來研究方向 115
參考文獻 116
自傳 122

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