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研究生:徐維利
研究生(外文):Wei-li Hsu
論文名稱:同步整流式LLC串聯半橋諧振轉換器之研製
論文名稱(外文):Realization Study of Synchronous-Rectified LLC Series-Resonant Half-Bridge Converter
指導教授:柳宗禹謝冠群
指導教授(外文):Tzong-Yeu LeouGuan-Chyun Hsieh
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:電子工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2006
畢業學年度:94
語文別:中文
論文頁數:117
中文關鍵詞: LLC 串聯諧振同步整流 半橋
外文關鍵詞:half-bridge LLC Series Resonant Convertersynchronous
相關次數:
  • 被引用被引用:40
  • 點閱點閱:3033
  • 評分評分:
  • 下載下載:634
  • 收藏至我的研究室書目清單書目收藏:0
本論文主要為探討同步整流式LLC 半橋串聯諧振轉換器的設計。一
般而言,LLC 可分為兩種操作模式,最低切換頻率介於兩諧振頻率之間
(wr2<ws,min< r1),以及最低切換頻率大於第一諧振頻率(wr1< ws,min)。
對於同步整流來說,LLC 轉換器必須操作在切換頻率大於諧振頻率的地
方。本論文中也提出了一個電壓箝位驅動電路,用來同時驅動一次側的
功率開關以及二次側的整流開關。如此一來此轉換器就不需要上/下臂驅
動電路。轉換器的動態分析是以IsSpice 來模擬。本論文設計、模擬並實
際做出一台250W 之同步整流式LLC 半橋串聯諧振轉換器,其滿載下效
率在94%,來驗證實際之電路特性,其特性符合我們所設計。
This thesis focuses on the design of a half-bridge LLC series resonant
converter (SRC) with synchronous rectification (SR). Generally, the operation
of SR-LLC-SRC can be in the ranges of wr2< ws,min< wr1 and wr1< ws,min. For
SR-LLC-SRC, only the operation of ws,min> wr1 is valid. In this thesis, a
synchronous rectification strategy for LLC-SRC is proposed with a
voltage-clamped drive circuit, which is designed to simultaneously drive
primary-side switches and secondary-side rectifiers. In this thesis, no
high/low-side driver circuit is required for the driver of pair power switches.
The dynamic performance of the proposed SR-LLC-SRC is simulated by
IsSpice and the design considerations are examined thoroughly. A design of
250W SR-LLC-SRC is examined and compared with the conventional
LLC-SRC, and a high efficiency up to 94% at full load is achieved. All
performances verified by simulation and experiment are quite well close the
theoretical predictions.
中文摘要Ⅰ
英文摘要Ⅱ
目錄Ⅲ
圖表索引Ⅳ
第一章 緒論1
1.1 研究背景與動機1
1.2 研究目的3
1.3 研究方法與步驟4
1.4 論文大綱4
第二章 串聯諧振式轉換器原理簡介6
2.1 串聯諧振式轉換器6
2.2 LLC 串聯諧振式轉換器8
第三章 LLC 串聯諧振變壓器交聯轉換器的狀態分析14
3.1 Region-1 電路動作分析15
3.2 Region-2 電路動作分析34
第四章 同步式LLC 半橋串聯諧振轉換器分析52
4.1 選擇操作區間52
4.2 同步整流電路分析55
第五章 系統轉移函數及控制方式67
5.1 系統轉移函數分析67
5.2 諧振電感Lr、諧振電容Cr 與激磁電感Lm74
5.3 控制方式78
第六章 設計考量81
6.1 設計規格參數81
6.2 設計諧振元件82
6.3 切換晶體的選擇84
6.4 變壓器設計考量85
6.5 同步整流MOS,Q3、Q4 的選用88
6.6 輸出電容器設計89
第七章 設計實例與模擬分析91
7.1 250W同步整流式LLC 半橋串聯諧振轉換器規格參數訂定91
7.2 諧振元件的選擇91
7.3 功率晶體的選擇92
7.4 變壓器的設計92
7.5 輸出整流濾波電路設計實例94
7.6 主電路模擬架構的建立94
7.7 模擬波形96
第八章 實驗量測102
8.1 轉換器主要波形量測102
8.2 效率分析111
第九章 結論與建議114
9.1 結論114
9.2 未來研究方向建議115
參考文獻116
[1] F. C. Lee, “High-frequency quasi-resonant and multi-resonant
converter technologies,” Proc. IEEE IECON’88, pp.509-521,1988
[2] R. Liu, and C. Q. Lee, “Analysis and design of LLC-type series
resonant convertor,” IEE Proc, vol. 24, no.24 , pp.1517 -1519,1988
[3] J. P. Agrawal, S. H. Kim, C. Q. Lee, “Capacitor voltage clamped
series resonant power supply with improved cross regulation,” IEEE
Industry Applications Society Annual Meeting , vol. 1, pp1141-1146,
1989
[4] K. Siri, C. Q. Lee, “Constant switching frequency LLC-type series
resonant converter,” IEEE Circuits and Systems, vol.1 ,1989
[5] J. P. Agrawal, K.Siri, C. Q. Lee, “Determination and minimization of
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[6] R. Liu, C. Q. Lee, A. K. Upadhyay, “Experimental study of the
LLC-type series resonant converter,” IEEE APEC '91 Conference
Proceedings, PP. 31-37, 1991.
[7] I.Batarseh, and K. Siri, “LLC-type series resonant convertor with
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[8] H. J. Jiang, G. Maggetto, and P. Lataire, “Steady-State Analysis of
the Series Resonant DC–DC Converter in Conjunction with Loosely
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POWER ELECTRON. , vol. 14, no 3, pp.469-480, 1999
[9] J. F. Lazar, and R. Martinelli, “Steady-State Analysis of the LLC
Series Resonant Converter,” IEEE APEC’01, vol.2, pp.728-735,
2001
[10] B. Yang and F. C. Lee, “LLC Resonant Converter for Front End
DC/DC Conversion,” IEEE APEC’02, vol. 2, pp.1108-1112, 2002
[11] Y. Zhang, D. Xu, Min Chen, Y. Hail and Z. Du, “LLC Resonant
Converter for 48V to 0.9V VRM,” IEEE PESC’04, vol.3, pp. 18
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[12] W.A. Tabisz, F.C. Lee, and D.Y. Chen, “A MOSFET resonant
synchronous rectifier for high-frequency dc/dc converters,” Proc.
IEEE Appl. Power Electron. Conf., pp.769-779, 1990.
[13] J. A. Cobos, J. Sebastian, J. Uceda, E. de la Cruz, and J.M. Gras,
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[14] R.A. Fisher, C.S. Korman, G.A. Franz, G. W. Ludwig, J.P. Walden,
S.A. El-Hamamsy, K. Shenai, and M. Kuo, “Performance of low loss
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Electron. Conf., 1997.
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