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研究生: 陳俞任
Chen, Yu-Jen
論文名稱: 微處理器在直流對直流轉換器小型化的改良應用
Miniaturization Improvements of DC-DC Converter Using Microprocessor
指導教授: 楊宏澤
Yang, Hong-Tzer
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 電機工程學系
Department of Electrical Engineering
論文出版年: 2015
畢業學年度: 103
語文別: 中文
論文頁數: 64
中文關鍵詞: 高功率密度精準開關機遠端控制過電流保護
外文關鍵詞: High Power Density, precision turn on/off, remote control, over current protection
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  • 近年來,由於直流對直流轉換器的高功率密度要求,效率的提升是其中一個改善重點,除了選擇適合的拓樸架構之外,仍需要其他輔助電路,例如精準開關機、過電壓關機、遠端控制,過電流保護,因此電路板需要足夠的空間來容納更多的零件,才能成為一個完整的產品。本研究是針對如何使用微處理器來取代一般類比電路,並利用電路模擬軟體、電路繪圖軟體以及3D機械繪圖軟體進行模擬與實驗驗證。此研究適合使用在模組化、小型化的直流對直流轉換器之參考。

    In recent years, due to high power density requirements of DC-to-DC converter, efficiency is one of the priorities for improvement. Besides selecting the appropriate topology architecture, still needed are other auxiliary circuits, such as precise turn-on/off, over-voltage shutdown, remote on/off, and over-current protection. As a result, printed circuit board needs enough space to accommodate more components in order to form a complete product. This study is on how to use a microprocessor to replace the general analog circuits, and the use of circuit simulation software, circuit layout software, and graphics software for 3D mechanical simulation and experimental verification. This research is suitable for use and references in DC-to-DC converters, particularly modular, miniaturization of DC-to-DC converter.

    摘要 I Summary II 致謝 IV 目錄 V 圖目錄 VIII 表目錄 XII 第一章 緒論 1 1.1 研究動機與目的 1 1.2 研究背景 2 1.3 論文結構 4 第二章 直流對直流轉換器及輔助電路 5 2.1 直流對直流轉換器系統方塊圖 5 2.2 輔助電路功能 7 2.2.1 電源電路 7 2.2.2 啟動電路 11 2.2.3 遠端控制電路 13 2.2.4 輸出短路保護 14 2.3 返馳式直流對直流轉換器 17 2.3.1 開迴路的返馳式直流對直流轉換器 17 2.3.2 閉迴路的返馳式直流對直流轉換器 19 2.3.3 完整線路圖 20 2.4 小結 21 第三章 電路小型化改良方法 22 3.1 系統架構說明 22 3.1.1 微處理器腳位定義 22 3.1.2 ADC解析度 24 3.2 改良的輔助控制電路 25 3.3 流程圖規劃 26 3.3.1 低電壓輸入流程圖規劃 29 3.3.2 高電壓輸入流程圖規劃 31 3.3.3 遠端控制流程圖規劃 33 3.3.4 輸出短路保護流程圖規劃 34 第四章 設計與模擬結果 35 4.1 前言 35 4.2 韌體設計 35 4.2.1 ADC取樣電壓設計 35 4.2.2 ADC暫存器定義與轉換步驟 39 4.2.3 ADC 轉換程式 42 4.3 電路全圖 44 4.4 電路模擬與實驗結果 45 4.4.1 效率曲線 46 4.4.2 開關機功能模擬 48 4.4.3輸出短路保護功能模擬 53 4.4.4遠端控制功能模擬 54 4.4.5 硬體實驗結果 55 4.5 機構模擬 56 4.6 優缺點比較 58 4.7 小結 60 第五章 結論與未來研究方向 61 參考文獻 62

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