臺灣博碩士論文加值系統

由於電力電子技術的進步，交換式電源被大量使用在工、商業應用之電氣產品中。而這些高頻切換的電源供應器均是相當嚴重的電磁干擾雜訊來源，將導致對於其他設備運作上的妨害。因此，有關於電磁干擾問題的探討與研究顯得相當重要。
本論文建立了一套以個人電腦為基礎之電磁干擾雜訊自動量測與濾波器設計系統，不僅能夠簡化整個雜訊量測與濾波器設計流程，節省實際元件焊接、試誤過程所浪費的時間與人力成本，並具備操控簡單、資料自動擷取與記錄、易懂、易學的特性，讓操作者不須經過專業且特殊的儀器操作訓練，即能快速熟悉系統的使用。且挾電腦高速的運算能力，以及友善的人機介面，可大幅縮短電磁干擾雜訊問題的處理時間，不僅加速了產品的開發時程，也更能夠為消費者所接受。

With the fast development of power electronic techniques, the switch-mode power supplies have been widely employed in the electrical products for industrial and commercial applications. These high-frequency switching power supplies are inherently noise sources and can affect the operation of the other equipments. Therefore, it is very important to investigate and study the electromagnetic interference problems.
In this thesis, a PC-based automatic measurement and filter design system for the electromagnetic interference emission is developed. The effort of solving the conductive EMI is greatly reduced by the fast computing speed and the friendly man-machine interface of the PC. The noise measurement and suppression procedure established can accomplish the reduction of the developing period and cost. Not only the production is speeded up, but also the acceptability of the product to the publicans can increase.

中文摘要 I
英文摘要 II
誌謝 III
目錄 IV
圖表索引 VI
第一章 緒論 1
1.1 研究動機 1
1.2 研究方法與目的 1
1.3 論文結構 2
第二章 電磁干擾雜訊規範與量測 4
2.1 電磁干擾雜訊規範 4
2.2 電磁干擾雜訊規範與量測 9
2.3 頻譜分析儀的使用 15
2.4 雜訊分離的概念 18
第三章 電磁干擾雜訊自動量測系統 25
3.1 系統架構 25
3.2 GPIB控制介面 27
3.3 Visual Basic 程式語言 31
3.4 HP標準儀器控制函數庫(SICL) 33
3.5 雜訊自動量測系統功能介紹 35
第四章 電磁干擾雜訊濾波器設計系統 46
4.1 濾波器元件介紹 46
4.2 濾波器元件的非理想特性 49
4.3 濾波器之共模與差模等效數學模型推導 54
4.4 濾波器設計流程 60
第五章 電磁干擾雜訊抑制實例 63
5.1 功率因數修正器簡介 63
5.2 電磁干擾雜訊抑制過程 71
第六章 總結與未來發展方向 77
參考文獻 79
附錄 83

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