跳到主要內容

臺灣博碩士論文加值系統

(44.222.64.76) 您好!臺灣時間:2024/06/16 04:50
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

我願授權國圖
: 
twitterline
研究生:李佳興
研究生(外文):Chia-Hsing Li
論文名稱:直流降壓型轉換器之功率損耗估算及改良型漣波調適導通時間控制
論文名稱(外文):Power-Loss Estimation and Improved Ripple Based Adaptive On-Time Control for DC-DC Buck Converters
指導教授:羅有綱邱煌仁
指導教授(外文):Yu-Kang LoHuang-Jen Chiu
口試委員:羅有綱邱煌仁
口試委員(外文):Yu-Kang LoHuang-Jen Chiu
口試日期:2014-07-07
學位類別:博士
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:2014
畢業學年度:102
語文別:英文
論文頁數:88
中文關鍵詞:直流降壓型轉換器功率損耗估算切換損失接合點溫度主動式虛擬漣波導通時間控制次諧波振盪陶瓷電容偏移量抵銷
外文關鍵詞:DC-DC Buck converterpower-loss estimationswitching lossjunction temperatureripple-based adaptive constant on-time controlsub-harmonic oscillationceramic capacitorsoffset cancellation.
相關次數:
  • 被引用被引用:1
  • 點閱點閱:197
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
本論文針對直流降壓型轉換器,提出精準功率損耗估算以及改進主動式虛擬漣波導通時間控制和抵銷固有輸出電壓偏移。首先,進行詳細分析與介紹精準功率損耗估算方法,切換損失主要是由金屬氧化物半導體場效電晶體寄生電容造成,針對切換損失提出一個完整研究與分析。另外,考慮金屬氧化物半導體場效電晶體阻抗之溫度特性,提出疊代方式來預測金屬氧化物半導體場效電晶體接合點溫度,進而導出金屬氧化物半導體場效電晶體實際阻抗。近年來直流降壓型轉換器控制架構採用主動式虛擬漣波導通時間控制,概念在較低責任週期操作時,具有架構簡單、快速暫態負載之優點,此種控制架構解決傳統導通時間控制,在使用陶瓷電容下所產生的不穩定諧波振盪。然而,此種控制架構在某些責任週期應用條件下有較慢暫態負載響應及固有輸出電壓偏移等缺點。本論文提出主動式可調整虛擬漣波導通時間控制去改進較慢暫態負載響應,另外提出新方法去抵銷固有輸出電壓偏移。最後,本論文針對提出功率損耗估算方法,進行理論分析和實驗結果比較,證明其可行性和可靠性。並藉由模擬和實驗比較結果,證明所提出主動式可調整虛擬漣波導通時間控制和抵銷固有輸出電壓偏移,具有快速暫態負載響應及無輸出電壓偏移。
This dissertation presents an accurate power-loss estimation method and a ripple based adaptive on-time (RBAOT) control with adjustable virtual-ripple and offset cancellation for buck converters. First, the accurate power-loss estimation method is introduced and analyzed in detail. The switching loss is mainly caused by parasitic capacitance of the metal oxide semiconductor field-effect transistor (MOSFET), and the switching loss on power MOSFETs has been thoroughly researched and analyzed. Besides, considering the thermal characteristics of MOSFET resistance, the dissertation presents iterative method to predict the junction temperature to get the new integration resistance of MOSFET. Recently buck converter control topology uses ripple based adaptive on-time (RBAOT) with virtual-ripple which is a conceptually simple topology and features fast dynamic transient response at lower duty ratio application. This control scheme solves the sub-harmonic oscillation instability when using ceramic capacitors in conventional control scheme. However, this control scheme has some drawbacks, such as poor dynamic transient response at a specified duty ratio range and inherent output voltage offset problem. This dissertation presents a new method which called RBAOT control with adjustable virtual-ripple to improve dynamic transient response, and a new method for output voltage offset cancellation. Theoretical analysis and experimental results are shown and compared to validate the feasibility and reliability of proposed power-loss estimation method. Simulation and experimental comparison results show that the proposed concept of ripple based adaptive constant on-time control with adjustable virtual-ripple and offset cancellation achieved fast dynamic transient responses without output voltage offset.
摘要 I
Abstract II
Acknowledgements III
Table of Contents IV
List of Symbols VI
List of Figures IX
List of Tables XI
Chapter 1 Introduction 1
1.1 Research background 1
1.2 Research motivation and objective 5
1.3 Dissertation outline 6
Chapter 2 Continuous-conduction mode synchronous buck converter power
dissipation analysis 7
2.1 Introduction 7
2.2 Operation principles 8
2.3 Switching loss analysis 11
2.4 Conduction loss analysis 26
2.5 Conduction loss analysis with thermal consideration 28
Chapter 3 Ripple based adaptive on-time control with adjustable virtual-ripple and
offset cancellation for buck converters 34
3.1 Introduction 34
3.2 Operating principles 35
3.3 Steady-state ripple based adaptive on-time with virtual-ripple control analysis 39
3.4 Steady-state switching frequency analysis 41
3.5 Switching frequency analysis during dynamic transient response 42
3.6 Output voltage offset in RBAOT topology 49
3.7 Ripple based adaptive on-time with virtual-ripple and output voltage offset
simulation 54
3.8 Proposed offset cancellation and RBAOT with adjustable virtual-ripple 57
Chapter 4 Experimental Result and Theoretical analysis 67
4.1 Continuous-conduction mode synchronous buck converter power dissipation
experimental results and theoretical analysis 67
4.2 Experiment verifications of ripple based adaptive on-time control with
adjustable virtual-ripple and offset cancellation for buck converters 77
Chapter 5 Conclusion and future works 83
5.1 Conclusion 83
5.2 Future works 84
References 85
[1] R.W. Erickson and D. Maksimovic, “Fundamentals of Power Electronics,”
New York: Springer, 2001.
[2] A. I. Pressman, K. Billings, and T. Morey, “Switching Power Supply Design,”New York: McGraw Hill, 2009.
[3] W. Eberle, Z. Zhang, Y. F. Liu, and P. C. Sen, “A Simple Analytical Switching Loss Model for Buck Voltage Regulators,” Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, pp. 36-42, Feb. 2008.
[4] W. Eberle, Z. Zhang, Y. F. Liu, and P. C. Sen, “A Practical Switching Loss Model for Buck Voltage Regulators,” IEEE Transactios on Power Electronics, vol. 24, no. 3, pp. 700-713, March 2009.
[5] Fairchild Semicondutor, “ AN-6005 Synchronous Buck MOSFET Loss
Calculations with Excel Model,” Fairchild. Access April 1. https://www.fairchildsemi.com/an/AN/AN-6005.pdf, 2006.
[ 6] T. Lopez and R. Elferich, “Method for the Analysis of Power MOSFET Losses in a Synchronous Buck Converter,” 12th International Power Electronics and Motion Control Conference, pp. 44-49, Aug. 2006.
[7] T. Y. Man, P. K. T. Mok, and M. Chan, “Analysis of Switching-Loss-Reduction Methods for MHz-Switching Buck Converters,” IEEE Conference on Electron Devices and Solid-State Circuits, pp. 1035-1038, Dec. 2007.
[8] M. Rodriguez, A. Rodriguez, P. F. Miaja, and J. Sebastian, “A Complete
Analytical Switching Loss Model for Power MOSFET in Low Voltage Converters,” 13th European Conference on Power Electronics and Applications (EPE), pp. 1-10, Sept. 2009.
[9] Z. J. Shen, Y. Xiong, X. Cheng, Y. Fu, and P. Kumar, “Power MOSFET
Switching Loss Analysis: A New Insight,” 41st IAS Annual Meeting Conference IEEE Industry Applications Conference, pp. 1438-1442, Oct. 2006.
[10] Y. Chen, P. Asadi, and P. Parto, “Comparative Analysis of Power Stage Losses for Synchronous Buck Converter in Diode Emulation Mode vs. Continuous Conduction Mode at Light Load Condition,” Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition , pp. 1578-1583, Feb 2010.
[11] N. Kondrath and M.K.Kazimierczuk, “Control Current and
Relative Stability of Peak Current-Mode Controlled Pulse-Width Modulated
DC-DC Converters without Slope Compensation,” IEEE Power Electronics
IET, vol. 3, no. 6, pp. 936-946, Nov. 2010.
[12] Y. S. Lee and C. J. Hsu, “High Accuracy CMOS Current Sensing Circuit for
Current Mode Control Buck Converter,” 7th International Conference Power
Electronics and Drive Systems, pp. 44-48, Sept. 2009.
[13] Y. J. Chen, D. Chen, Y. C. Lin, C. J. Chen, and C. H. Wang, “A Novel Constant On-Time Current-Mode Control Scheme to Achieve Adaptive Voltage Positioning for DC Power Converters,” 38th Annual Conference on IEEE Industrial Electronics Society, pp. 104-109, Oct. 2012.
[14] Y. J. Chen, D. Chen, Y.C. Lin, C. J. Chen, and C.H. Wang, “A Ripple-Based
Constant On-Time Control with Virtual Inductor Current and Offset Cancellation for DC Power Converters,” IEEE Transactions on Power Electronics, vol. 27, no. 10, pp. 4301-4310, Oct. 2012.
[15] T. Qian and W. Wu, “Analysis of the Ramp Compensation Approaches to
Improve Stability for Buck Converters with Constant On-Time Control,” IEEE Power Electronics IET, vol. 60, no. 5, pp. 1780-1786, Oct. 2013.
[16] Y. C. Lin, D. Chen, C. J. Chen, B. Wang, “A Ripple-Based
Constant On-Time Control with Virtual Inductor Current and Offset Cancellation for DC Power Converters,” IEEE Transactions on Power Electronics, vol. 27, no. 10, pp. 4301-4310, Oct. 2012.
[17] T. Qian and W. Wu, “Analysis of the Ramp Compensation Approaches to
Improve Stability for Buck Converters with Constant On-Time Control,” IEEE
Power Electronics IET, vol. 5, no. 2, pp. 196-204, Feb. 2012.
[18] R. Redl and J. Sun, “Ripple-Based Control of Switching Regulators—An Overview,” IEEE Transactions on Power Electronics, Vol. 24, no. 12, pp. 2669-2680, Dec. 2009.
[19] Y. Y. Mai and P. K. T. Mok, “A Constant Frequency Output-Ripple Voltage-Based Buck Converter without Using Large ESR Capacitor,” IEEE Transactions on Circuits and Systems, Vol. 55,no. 8, pp. 748-752, Aug. 2008.
[20] C. J. Chen, D. Chen, C. W. Tseng, and C. T. Tseng, “A Novel Ripple-Based Constant On-Time Control with Virtual Inductor Current Ripple for Buck Converter with Ceramic Output Capacitors,” Twenty-Sixth Annual IEEE Power
Electronics Conference and Exposition, pp. 1488-1493, Mar. 2011.
[21] W. C. Chen, C. S. Wang, Y. P. Su, Y. H. Lee, C. C. Lin, K. H. Chen, and M. J.Du,“Reduction of Equivalent SeriesInductor Effect in Delay-Ripple Reshaped Constant On-Time Control for Buck Converter with Multilayer Ceramic Capacitors,” IEEE Energy Conversion Congress and Exposition, pp. 755-758, Sept. 2012.
[22] Y. H. Lee, W. W. Lai, W. Y. Pai, K. H. Chen, M. J. Du, and S. H.
Cheng, ”Reduction of Equivalent Series Inductor Effect in Constant On-Time Control DC-DC Converter without ESR Compensation,”IEEE International Symposium on circuits and systems, pp. 753-756, May. 2011.
[23] IRF (International Rectifier), “IRFR3707ZCPbF Datasheet,” HEXFET Power MOSFET International Rectifier. Accessed Auguest. 22.
http://www.irf.com/product-info/datasheets/data/ IRFR3707ZCPbF.pdf, 2000.
[24] IRF (International Rectifier), “IRLR8113 Datasheet,” HEXFET Power MOSFET
International Rectifier. Accessed Feb. 14. http://www.irf.com/product-info/datasheets/data/irlr8113.pdf, 2003.
[25] RT (Richtek Technology Corporation), “RT8108A Datasheet,” Richtek Single
Synchronous Buck PWM Controller. Accessed Sept. http://www.richtek.com/product_detail.jsp?s=421, 2011.
[26]RT (Richtek Technology Corporation), “RT8108E Datasheet,” Richtek Single Synchronous Buck PWM Controller. Accessed Sept. http://www.richtek.com/product_detail.jsp?s=421, 2011.
[27] C. Ni, and T. Tetsuo, “Adaptive Constant On-Time (D-CAP™) Control Study in Notebook Applications,” Texas Instruments, Application Report SLVA281B, July 2007.
[28]RT (Richtek Technology Corporation), “RT7285 Datasheet,” Richtek ACOT™ Synchronous Step-Down Buck Converter. Accessed Sept.
http://www.richtek.com/product_detail.jsp?s=421, 2011.
電子全文 電子全文(本篇電子全文限研究生所屬學校校內系統及IP範圍內開放)
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top