近年來，世界各先進國家開始制訂電磁相容性標準（Electromagnetic Compatibility Standard，簡稱EMC），要求消費性電子產品操作時不得產生電磁干擾（Electromagnetic Interference，簡稱EMI），因而產品於研發時必須採用昂貴之儀器設備進行電磁干擾測試，增加業界之人力資源及設備投資。隨著個人電腦的快速發展，使用電腦輔助工程軟體進行模擬分析已是主流，本論文即針對使用電腦模擬來預估功率因數修正電路之傳導性電磁干擾量，經由電腦輔助設計電源濾波器，使產品符合相關標準，達成節省時間及人力的目標。首先利用OrCAD PSpice電子電路模擬軟體針對功率因數修正電路的電磁干擾進行建模，並解析各電路元件對影響電磁干擾的重要參數；再行使用電腦輔助設計出符合電磁干擾規範的被動式電源濾波器，並由分析結果比較觀察電源濾波器對電源功因及系統傳導雜訊的影響，對濾波器的設計提出簡化及有效的分析探討，可供電源設計者進一步參考資訊。

Recently, as the electromagnetic compatibility standard, abbreviated as EMC, being adopted by most European and American countries, consumer electronic products are regulated to generate no electromagnetic interferences, abbreviated as EMI, while in operation. Hence, expensive instruments are employed for product measurement on the EMI specifications such that more human resources and expenditures are wasted in the industry. With the advent of personal computers as well as computer-aided engineering software, computer simulations are adopted for analysis of conducted EMI caused by power factor correction circuits can in this thesis. Also, power-line filter is designed with the help of CAE software to comply with the relevant EMI standards such that both time and manpower can be reduced. In this study, the analysis of EMI signals for PFC circuits are conducted with OrCAD PSpice. Then, the important circuit parameters influencing the EMI effects are identified. Moreover, design of power-line filter are investigated on the EMI results with comparisons between nil-filtered and filtered PFC circuits via simulations. The simplified and effective approach could be beneficial for design engineers on power-line filters.

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