臺灣博碩士論文加值系統

近年來工業、軍事科技、醫療器材業發展日益成熟，對脈衝電源的需求也有增加的趨勢，因此本論文提出一套輸出功率可達1kW之低電壓與高電流輸出之脈衝電源電路架構。此架構以全橋相移電路為基礎，並加入同步整流電路，經由適當設計，讓功率晶體開關能以零電壓切換的方式運行，如此一來不僅可以增加系統的效能，還可以降低電源體積。變壓器二次側之電壓與電流輸出分別以三個不同程度的輸出功率來展示與分析實驗結果。最後為驗證負載響應特性，分別將功率晶體調整為不同頻率與責任週期大小，驗證輸出波形是否能達到需求。實測結果之波形具備研製之參考價值並且發現本架構有進行更高功率輸出之潛力。

In recent years, the development of industry, military science and medical materials has become more mature, and the demands for pulse power supply has also increased. Therefore, this thesis proposes a pulse power supply circuit with lower output voltage and higher current with power output up to 1 kW. This power supplying circuit is based on a full-bridge phase-shift inverter and incorporates a synchronous rectification circuit that allows the transistor switches to operate in a zero-voltage switching mode, which not only increases circuit performance, but also reduces the circuit volume. The output voltage and current on the secondary side of the transformer are presented and analyzed with three different levels of output power. Finally, to verify the load response characteristics, the power transistors are adjusted to different frequencies and duty respectively to verify whether the output pulse waveform can meet the demand. The measured waveforms have a reference value for development and have found that this circuit structure has the potential for higher power output.

摘要 VII
ABSTRACT VIII
致謝 IX
目次 X
表目次 XIII
圖目次 XIV
符號說明 XVII
第一章 緒論 1
1-1 研究背景與動機 1
1-2 文獻回顧 3
1-3 研究目的 5
1-4 論文大綱 6
第二章 脈衝種類與其脈衝電鍍應用 7
2-1 簡介 7
2-2 基本原理 7
2-3 脈衝電鍍 9
2-4 脈衝電鍍的優越性與特性 11
2-4-1 單向脈衝 12
2-4-2 直流疊加脈衝 12
2-4-3 週期換向脈衝 13
第三章 電力轉換器特性介紹 14
3-1 簡介 14
3-2 電力轉換器電路種類 15
3-2-1 推挽式電路 15
3-2-2 半橋式電路 19
3-2-3 全橋式電路 20
3-3 零電壓切換原理簡介 22
3-4 全橋相移換流器 24
第四章 脈衝電源硬體架構設計與分析 28
4-1 簡介 28
4-2 前級電路架構設計 29
4-2-1 前級元件設計與選擇 29
4-2-2 變壓器設計 33
4-2-3 變壓器一次側串聯電感器（LS） 37
4-2-4 輸出電感Lout設計 38
4-3 控制器設定 41
4-4 比流器與電流保護 45
4-5 後級驅動電路架構 46
第五章 實測結果與討論 48
5-1 簡介 48
5-2 前級脈衝電源電路測試 48
5-3 後級脈衝電源電路測試 54
第六章 結論與未來研究方向 57
6-1 結論 57
6-2 未來研究方向 58
參考文獻 59

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