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研究生： 詹振輝
Chen-Hui Chan
論文名稱： 雙晶擬諧振返馳式轉換器之設計考量與研製
Design and Realization of a Dual-Ended Quasi-Resonant Flyback Converter
指導教授： 羅有綱
Yu-Kang Lo
口試委員: 邱煌仁
Huang-Jen Chiu
劉益華
Yi-Hua Liu
歐勝源
Sheng-Yuan Ou
學位類別： 碩士
Master
系所名稱： 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年： 2011
畢業學年度： 99
語文別： 英文
論文頁數： 81
中文關鍵詞： 雙晶擬諧振返馳式轉換器 、同步整流器 、功率因數
外文關鍵詞： Dual-ended quasi-resonant flyback converter, synchronous rectifier, power factor
相關次數： 點閱：1527  下載：4 
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  •  上一筆

    • 本論文的目的是證明雙晶擬諧振返馳式轉換器的可行性，傳統單晶返馳式轉換器所能處理的功率上限約為150 W，本論文所提架構與控制方式除了可以提升功率規格之外，亦可改善轉換效率。為了驗證其可行性，所設計之電源供應器必須符合各種性能規格，例如效率、功率因數、總諧波失真、保持時間與無載損耗等。
    本論文亦介紹所使用IC的操作原理和功能，最後，並提出設計準則以完成180 W電源供應器的實作。

    The purpose of this thesis is to prove the feasibility of a dual-ended quasi-resonant (QR) flyback converter to improve the efficiency for power larger than 150 W which is usually the limitation for a single-switch flyback converter. To examine the feasibility of this topology, the designed power supply should meet the various performance targets in term of efficiency, power factor (PF) , total harmonic distortion (THD), holdup time and no load power consumption.
    The operating theory and the functions of the used ICs are also introduced. Finally, the design guides to complete this 180-W power supply is also provided.

    AbstractI 摘要II AcknowledgementsIII Chapter 1. Introduction1 1.1Background1 1.2IC Controllers used for this Solution3 1.3Thesis Content3 Chapter 2. Operation Theory5 2.1 Operation Theory of a Boundary Conduction Mode PFC5 2.1.1 Control Method of a BCM PFC7 2.1.2 Zero Current Distortion11 2.2 Single-Ended QR Flyback Converter13 2.2.1 Switching Loss in Light Load17 2.2.2 Snubber Loss18 2.3. Dual-Ended QR Flyback Converter19 2.3.1 Design Considerations24 2.3.2 Benefits of a Dual Ended QR Flyback Converter24 Chapter 3. Introductions to the Adopted ICs27 3.1 IC Introduction of FAN692027 3.1.1 Description of FAN692027 3.1.2 FAN6920 Pin Configuration28 3.1.3 FAN6920 Pin Definitions28 3.1.4 IC Functional Block30 3.1.5 Typical Application Circuit31 3.1.6 Key Function Introduction31 3.2 IC Features and Functions of FAN738236 3.2.1 FAN7382 Descriptions36 3.2.2 IC Pin Configuration and Typical Application Circuit36 3.2.3 FAN7382 Pin Definition37 3.2.4 IC Functional Block37 3.3 IC Features and Functions of FSR56038 3.3.1 IC Description38 3.3.2 Pin Configuration38 3.3.3 Pin Definition39 3.3.4 IC Functional Block39 3.3.5 Typical Application Circuit40 3.3.6: Key Function Introduction of FSR56040 Chapter 4. Design and Experimental Verifications46 4.1 Target Specifications of the Power Board46 4.2 Design Results47 4.2.1 The Outlook of the Power Board47 4.2.2 Schematic Design48 4.2.3 Bill of Material (BOM)49 4.2.4 Inductor and Transformer Design52 4.3 Testing Results56 4.3.1 Efficiency Test Results56 4.3.2 PF and THD Test Results57 4.3.3 Surface Temperature Tests for Key Components57 4.3.4 Hold-up Time Test59 4.3.5 Power Consumption at No Load60 Chapter 5. Design Procedures for FAN692061 5.1 Design Steps for PFC stage61 5.2 Design Steps for High-Side Driver67 5.3 Design Steps for PWM Stage70 5-4 Design Steps for the SR Stage75 Chapter 6. Conclusions and Future Development77 6.1 Conclusions77 6.2 Future Development79 References80

    [1].ST Microelectronic, “Datasheet of L6561, Power Factor Corrector”, 2004.
    [2].Abraham I. Pressman, “Switching Power Supply Design 2nd edition”, McGraw-Hill, 1999.
    [3].Mohan/Undeland/Robbins, Power Electronics: Converters, Applications, and Design, 2nd edition, 全華科技圖書, 1995.
    [4]. Fairchild Semiconductor, “Datasheet of FAN6961, Boundary Mode PFC Controller”, 2009.
    [5].Fairchild Semiconductor, “Application Note of FAN6961”, AN-6961, 2009.
    [6].Fairchild Semiconductor, “Datasheet of FAN6300A, Highly Integrated Quasi Resonant Current Mode PWM Controller”, 2009.
    [7].Fairchild Semiconductor, “Application Note of FAN6300/A/H”, AN-6300, 2009.
    [8].On Semiconductor, “A 75W TV Power Supply Operating in Quasi-square Wave Resonant Mode using the NCP1207 Controller”, AND8145/D, 2004.
    [9].Fairchild Semiconductor, “Preliminary Datasheet of FAN6920, Integrated Critical Mode PFC and Quasi Resonant Current Mode PWM Controller”, 2010.
    [10]. Fairchild Semiconductor, “Datasheet of FAN6921, Integrated Critical Mode PFC and Quasi Resonant Current Mode PWM Controller”, 2010.
    [11].Fairchild Semiconductor, “Datasheet of FAN7382, Half Bridge Gate Driver”, 2005.
    [12].Fairchild Semiconductor, “Design and Application Guide of Boot Strap Circuit for High Voltage Gate Driver IC”, 2008. Fairchild Semiconductor, “Preliminary Datasheet of FSR510, Highly Integrated Synchronous Rectification Combo Controller for Quasi-resonant PWM controller”, 2010.
    [13].Fairchild Semiconductor, “Preliminary Datasheet of FAN6205, Highly Integrated Synchronous Rectification Controller for Quasi-Resonant Flyback Converters”, 2010.

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