研究生: |
林慧芝 Lin Hui-Chih |
---|---|
論文名稱: |
交換式電源供應器散熱性能之電腦輔助設計 Thermal Computer-Aided Design System for Switching Power Supplies |
指導教授: |
洪英輝
Ying-Huei Hung |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 動力機械工程學系 Department of Power Mechanical Engineering |
論文出版年: | 2001 |
畢業學年度: | 89 |
語文別: | 英文 |
中文關鍵詞: | 電源供應器 、散熱 、電腦輔助設計 |
外文關鍵詞: | switching power supplies |
相關次數: | 點閱:2 下載:0 |
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本研究針對交換式電源供應器成功地發展出一套具友善操作介面的散熱電腦輔助設計系統,此系統是建立在微軟視窗98的操作平台上使用,其內容乃由前置處理器、熱網路分析軟體及後置處理器等三個次系統組成。前置處理器提供了相當友善的使用者介面,讓設計人員能夠輕易地產生熱傳分析模型、建立熱網路分析軟體所需之輸入檔案、評量交換式電源供應器發熱量、選擇風扇種類、及計算空氣之流量;同時亦可展現出交換式電源供應器各組件的數位照片。有關熱網路分析軟體之設計,乃採用本實驗室所發展出之「外內」熱傳分析觀念,針對交換式電源供應器不同階段之熱傳分析需求而內建了六種熱傳分析模型。在後置處理器中,本研究提出了一套改良之繪圖方法來繪製彩色等溫圖;並引用圖像合成方法,成功地顯示出印刷電路板上等溫圖的彩色合成效果。因此,在研究中更進一步地整合上述前後處理次系統、熱網路分析軟體及資料庫,而完成一套具友善操作介面之交換式電源供應器散熱電腦輔助設計系統。
應用上述研發出之電腦輔助設計系統,本研究針對數個交換式電源供應器的散熱實例做詳盡分析與比較,結果印證此電腦輔助設計系統皆能適當地預測交換式電源供應器內印刷電路板上的熱傳特性。另外,本研究亦針對交換式電源供應器設計作了一系列的探討,此些探討乃包括印刷電路板與底殼間距、風扇種類、風扇與通風孔安置方式等。經由文中各種實例探討,結果皆驗證了本研究中開發出之交換式電源供應器散熱電腦輔助設計系統的優越性。
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