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NC092FJU00428001
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校 輔仁大學
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所 電子工程學系
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489506239
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研
究 許明祥
生
(中)
研
究 Ming Shyang Hsu
生
(英)
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行 波 管 高 壓 電 源 供 應 器 之 研 製
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(中)
論
文
Implementation of High Voltage Power Supply Applied to the Traveling Wave Tube
名
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(英)
其
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名
指
導
李永勳博士
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(中)
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Yuang-Shung Lee, Ph.D.
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文 中文
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鍵 行波管 高壓電源供應器 降壓電流饋入型全橋功率轉換器
字
(中)
關
鍵 TWT high voltage power supply buck current-fed full bridge converter
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(英)
本文提出一個應用於行波管的高壓電源供應器，它採用降壓電流饋入型全
橋功率轉換器，以降低高壓變壓器高漏感對效率的影響，其降壓轉換器切
摘
換頻率為 100 kHz，可以減少整個電源供應器的体積及重量。高壓變壓器
要 繞線用 19 kV 絕緣線，另外利用高壓二次側分組倍壓整流濾波，以獲得行
(中) 波管的陰極及兩組集極所需的高電壓。文中將提出高壓電源供應器分析和
設計的方法，並以電腦模擬及以實驗室 100 kHz、10 kV、1 kW 原型電路，
驗證所提方法的可行。
A high voltage power supply applied to the traveling wave tube (TWT) is proposed
in this paper. A Buck current-fed full bridge converter is used to reduce the effect of
leakage inductances of high voltage transformer for improving the performance. The
摘 switching frequency of the converter is chosen at 100 kHz to reduce the size and
weight of power supply. The transformer windings utilize 19 kV insulation wire. The
要 high voltage output rectifier and double voltage multiplier provided the need for
(英) multiple high voltage outputs for cathode, collector-1, collector-2 of the TWT,
respectively. This paper mentioned the simply scheme to develop and design the
high voltage power supply. Finally, computer simulation and experimental results of
laboratory prototype with 100 kHz、10 kV and 1 kW output are presented to
demonstrate the feasibility of circuit topology.
論
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目
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目錄 中文摘
要 ……………………………………………………………………i 英文摘
要……………………………………………………………………ii 目
錄…………………………………………………………………………iv 表目
錄 ……………………………………………………………………vii 圖目
錄……………………………………………………………………viii 第一章
緒論…………………………………………………………………1 1.1 摘
要………………………………………………………………………1 1.2 前
言………………………………………………………………………1 1.3 本文
重點…………………………………………………………………2 1.4 論文大
綱…………………………………………………………………3 第二章 行波
管介紹…………………………………………………………4 2.1 行波管簡
述………………………………………………………………4 2.2 簡述行波管
各部分功能介紹……………………………………………6 2.3 行波管高壓電
源與輻射相位角關係[11]………………………………7 2.4 行波管應用於連
續波(CW)之電氣規格簡述……………………………9 2.5 本章結
論…………………………………………………………………9 第三章行波
管放大器電源系統及工作原理………………………………10 3.1 電源系統
方塊圖描述 …………………………………………………10 3.2 工作原
理 ………………………………………………………………10 3.2.1 降壓電
流饋入型全橋轉換器工作原理 …………………………13 3.3 電源供應器
EMI 濾波與整流電路………………………………………18 3.3.1 電源供應器
EMI 簡述………………………………………………19 3.3.2 電源供應器 EMI
濾波電路零件設計………………………………23 3.3.3 共模濾波電路設
計 ………………………………………………24 3.3.4 差模濾波電路設
計 ………………………………………………25 3.4 行波管放大器電源電路
分析與設計…………………………………26 3.4.1 行波管電源需求部分規
格 ………………………………………26 3.4.2 高壓電源電路設計分
析 …………………………………………26 3.4.2.1 降壓轉換器工作週期設
計……………………………………27 3.4.2.2 高壓變壓器圈數比設
計………………………………………28 3.4.2.3 降壓轉換器電感值設
計………………………………………29 3.4.2.4 倍壓整流濾波與高壓分壓電
路設計…………………………29 3.4.2.5 場效電晶体驅動電路設
計……………………………………32 3.4.2.6 行波管放大器燈絲電壓電路設
計……………………………33 3.4.2.7 行波管放大器高壓電源保護電路設
計………………………33 3.5 本章結
論 ………………………………………………………………35 第四章緩衝
電路(Snubber)設計 …………………………………………36 4.1 前
言 ……………………………………………………………………36 4.2 被動
式緩衝電路 ………………………………………………………36 4.2.1 RCD
緩衝器電路設計………………………………………………41 4.2.2 RLD 緩
衝器電路設計………………………………………………41 4.3 主動式緩衝
電路 ………………………………………………………44 4.4 本章結
論 ………………………………………………………………46 笫五章 TWT
驅動之高壓電源供應器閉迴路分析與設計…………………47 5.1 閉迴路分
析 ……………………………………………………………47 5.2 PWM 控制策
略的選取 …………………………………………………49 5.3 平均電流模
式…………………………………………………………49 5.4 閉迴路電路設
計[37]…………………………………………………51 5.5 電壓迴路零點、極
點之決定…………………………………………52 5.6 電流迴路零點、極點
之決定…………………………………………55 5.7 降壓型轉換器小信號分
析[42]………………………………………57 5.8 PSpice 模擬比較迴路響
應…………………………………………59 5.9 本章結
論 ………………………………………………………………61 第六章 模擬
分析與實作量測結果 ………………………………………62 6.1 電腦模擬分
析…………………………………………………………62 6.2 實測波形分
析…………………………………………………………66 第七章 結論與建
議 ………………………………………………………74 參考文
獻……………………………………………………………………75 作者簡
歷……………………………………………………………………82
參
考
文
獻
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