研究生: |
王超駿 Chao-Chun Wang |
---|---|
論文名稱: |
高效率LLC半橋諧振轉換器之同步整流優化設計 Optimization Design of Synchronous Rectification for High-efficiency LLC Half-bridge Resonant Converters |
指導教授: |
邱煌仁
Huang-Jen Chiu 謝耀慶 Yao-Ching Hsieh |
口試委員: |
劉益華
Yi-Hua Liu 林長華 Chang-Hua Lin 王見銘 none 梁從主 none |
學位類別: |
博士 Doctor |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2015 |
畢業學年度: | 103 |
語文別: | 中文 |
論文頁數: | 93 |
中文關鍵詞: | 零電壓切換 、半橋式架構 、LLC諧振轉換器 、同步整流器 |
外文關鍵詞: | Zero-voltage switching, half-bridge, LLC resonant converter, synchronous rectifier |
相關次數: | 點閱:1146 下載:17 |
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本論文提出實現高效率交換式電源轉換器設計架構,電路架構採用LLC同步整流半橋式諧振轉換器(LLC Half Bridge Resonant Converter with Synchronous Rectifier)。並且導入整合驅動電路及優化設計在同步整流器電路,補償同步整流輸入信號源及改善寄生元件影響,零電壓切換與同步整流技術實現最佳化效率,本論文詳細探討設計步驟與分析電路之動作原理。
電源轉換器實體實驗,詳細說明設計步驟與電路中重要元件值之規格,進而製作一台200W之LLC 半橋式串聯諧振轉換器,輸出電壓DC 12V,全機效率在滿載下高達97.6%。在10%至100%不同的負載情況之平均效率下可達95.7%。原型機實測、電氣功能與模擬結果相互驗證與理論預期相符。
This dissertation mainly aims to study the optimal design for half-bridge LLC resonant converter with synchronous rectifier. In order to further improve the efficiency and reliability, zero-voltage switching, compensated sensing of synchronous rectifier technologies and integrated drivers are adopted. Operating principles and design considerations are analyzed and discussed in detail.
The experimental results of a 12V/ 200W laboratory prototype are shown to verify the feasibility of the proposed scheme. The highest efficiency is achieved to 97.6% at 100% load. The average efficiency is achieved to 95.7% at 10% to 100% load conditions.
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