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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳信樹(Hsin-Shu Chen) | |
dc.contributor.author | Jia-Nan Tai | en |
dc.contributor.author | 戴嘉南 | zh_TW |
dc.date.accessioned | 2021-05-20T21:11:16Z | - |
dc.date.available | 2016-02-20 | |
dc.date.available | 2021-05-20T21:11:16Z | - |
dc.date.copyright | 2011-02-20 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-02-15 | |
dc.identifier.citation | [1] F. Lin and D. Y. Chen, “Reduction of power supply EMI emission by switching frequency modulation,” IEEE Trans. Power Electron., vol. 9, no. 1, pp. 132-137, Jan. 1994
[2] M. Kuisma, “Variable frequency switching in power supply EMI control: An overview,” IEEE Aerosp. Electron. Syst. Mag., vol. 18, no. 12, pp. 18–22, Dec. 2003. no. 1, pp. 132-137, Jan. 1994 [3] K. Tse, H. Chung, S. Hui, and H. So, “A comparative study of using random switching schemes for DC–DC converters,” in Proc. IEEE Appl. Power Electron. Conf., vol. 1, pp. 160–166, 1999. [4] Victor Adrian, Joseph S. Chang, and Bah-Hwee Gwee, “A Randomized Wrapped-Around Pulse Position Modulation Scheme for DC–DC Converters,” IEEE Trans. Circuits Syst.I, Reg. Papers, vol. 57, no. 9,pp. 2320-2333, Sep. 2010. [5] Jau-Horng Chen, Pang-Jung Liu, and Yi-Jan Emery Chen, “A Spurious Emission Reduction Technique for Power Amplifiers Using Frequency Hopping DC-DC Converters,” in IEEE Radio Frequency Integrated Circuits Symposium., pp. 145–148, 2009. [6] Jau-Horng Chen, Pang-Jung Liu, Yu-Ling Hung, Hao-Shun Yang, and Yi-Jan Emery Chen, “A Spur-Reduced Multimode Power-Level Tracking Power Amplifier Using a Frequency-Hopping DC-DC Converter,” IEEE Trans. Microw. Theory Tech., vol. 58, no. 5, May 2010. [7] J. Paramesh and A. Jouanne, “Use of sigma-delta modulation to control EMI from switch-mode power supplies,” IEEE Transactions on Industrial Electronics, vol. 48, pp. 111–117, Feb 2001. [8] Marian K. Kazimierczuk, “Pulse-width Modulated DC–DC Power Converters,” John Wiley & Sons, 2008. [9] H. W. Whittington, B. W. Flynn and D.E. Macpherson, “Switched Mode Power Supplies: Design and Construction,” John Wiley & Sons, 1992. [10] Robert W. Erickson ; Dragan Maksimovic`, “Fundamentals of Power Electronics , Second Edition” 2001 by Kluwer Academic Publishers [11] B. Razavi, “Design of Analog CMOS Integrated Circuits.” New York: McGraw-Hill, 2001 [12] C. F. Lee, P.K.T. Mok, “A monolithic current-mode CMOS DC-DC converter with on-chip current-sensing technique,” IEEE J. Solid-State Circuits, vol. 39, no. 12, pp. 2342-2342, Dec. 2004. [13] Paul R. Gray, Paul J. Hurst, Stepen H. Lewis, and Robert G. Meyer, “Analysis and Design of Analog Integrated Circuits.” John Wiley & Sons, 2001 [14] J. Staudinger, T. Quach, and R. Sherman, “Gate and drain power tracking methods enhance efficiency in reverse link CDMA amplifiers,” Appl. Microw. Wireless Mag., pp. 28–38, Mar. 2002. [15] P. Wong, F. C. Lee, X. Zhou, and J. Chen, “VRM transient study and output filter design for future processors,” in Proc. IEEE IECON, pp. 410–415, 1998. [16] K. K. Tse, H. S.-H. Chung, S. Y. R. Hui, and H. C. So, “Spectral characteristics of randomly switched PWM dc/dc converters operating in discontinuous conduction mode,” IEEE Trans. Ind. Electron., vol. 47, no. 4,pp. 759–769, Aug. 2000. [17] Edward N. Y. Ho and Philip K. T. Mok, “Ramp Signal Generation in Voltage Mode CCM Random Switching Frequency Buck Converter for Conductive EMI Reduction,” in Proc. IEEE Custom Integr. Circuits Conf., 2010 [18] Charles K. Alexander, Matthew N. O. Sadiku “Fundamentals of Electric Circuits, 3rd Edition.” McGraw-Hill, 2005. [19] O. Trescases, G. Wei, and W. T. Ng, “A Low-Power DC-DC Converter with Digital Spread Spectrum for Reduced EMI,” in IEEE Power Electronics Specialists Conference, pp.1-7, June 2006. [20] J.-C. Wu, C.-W. Mu, C.-H. Yang, and C.-H. Tsai, “Digitally controlled low-EMI switching converter with random pulse position modulation,” in IEEE Asian Solid-State Circuits Conf., pp.341-344, Nov. 2009. [21] Edward N. Y. Ho and Philip K. T. Mok, “Ramp Signal Generation in Voltage Mode CCM Random Switching Frequency Buck Converter for Conductive EMI Reduction,” in Proc. IEEE Custom Integr. Circuits Conf., 2010 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/10219 | - |
dc.description.abstract | 本論文闡述一個切換頻率中利用電流平均控制來減低暫態漣波控制方法的直流電壓轉換器,並以台積電0.35-μm 2P4M 3.3V/5V Mixed Signal CMOS製程製作。當使用切換頻率技術時,由於電感的電流連續性,使得切換頻率前和切換頻率後所產生的電感電流交流值不同,在輸出電容產生出一暫態漣波電壓,此論文提出一個如何控制電感電流才能使之無此暫態漣波電壓,其方式為利用延長或縮短充電(放電)電流的時間來達到平均電感電流,此時間為切換頻率前後充電(放電)電感電流時間的平均值,實現方式是利用額外電路準確計算此時間後,以脈衝的型式插入原本的脈衝調變訊號。
依據量測的結果,本晶片的切換頻率設定在880k-3.4MHz,暫態漣波在頻域上改進14.1dB,時域上改進88%。跳頻技巧最多可使EMI降低23.55dB,功率效率最高為90%。晶片總面積占2.126mm2,而其它的量測結果也包含在本論文內。 | zh_TW |
dc.description.abstract | This thesis presents an inductor current average control method for transient-ripple reduction in frequency hopping DC-DC converters and is implemented in a standard 0.35-μm 2P4M 3.3V/5V Mixed Signal CMOS process. When using the frequency-hopping technique, there is transient ripple on the output voltage due to the difference of inductor current between two different frequencies. This thesis proposes a method which predicts the average inductor current and inserts a calculated-width pulse between two frequencies to reduce the transient ripple on the output voltage.
Measurement results are performed with the switching frequency of this chip operating between 0.88 MHz and 3.4 MHz. The transient ripple on the output voltage is reduced by 88% and the undesired spur is reduced by 14.1 dB. The frequency-hopping technique achieves 23.55 dB reduction of the EMI spur magnitude. The maximum power efficiency achieved 90%. The chip occupied 2.126 mm2, and the other detailed measurements are included in this thesis. | en |
dc.description.provenance | Made available in DSpace on 2021-05-20T21:11:16Z (GMT). No. of bitstreams: 1 ntu-100-R97943143-1.pdf: 2767625 bytes, checksum: 96b87e83a0fb17727949b23c2685085a (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | Chapter 1 Introduction 1
1.1 Motivation 1 1.2 Thesis Organization 2 Chapter 2 Fundamental of DC-DC Buck Converter 3 2.1 Performance Metrics 3 2.1.1 Efficiency 3 2.1.2 Regulation 4 2.1.2.1 Line Regulation 4 2.1.2.2 Load Regulation 5 2.1.2.3 Temperature Regulation 5 2.1.3 Transient Response 6 2.2 Architecture of DC-DC Converters 8 2.2.1 DC-DC Buck Converter Operation 8 2.2.2 Estimation of Output Voltage Ripple 13 2.2.3 Feedback-Loop Stabilization 15 2.3 Variable Frequency 18 2.3.1 Random Switching 19 2.3.2 Frequency Hopping 21 Chapter 3 Proposed Architecture 23 3.1 Introduction 23 3.2 Specification of DC-DC Buck Converter 23 3.3 System Architecture 24 3.4 Inductor Current Average Control (ICAC) 25 3.4.1 Hopping in Off Duty Cycle Period 28 3.4.1.1 Hopping frequency from low to high 28 3.4.1.2 Hopping frequency from high to low 31 3.4.2 Hopping in On Duty Cycle Period 32 3.4.2.1 Hopping frequency from low to high & from high to low 32 Chapter 4 Circuit Implementation and Simulation Results 34 4.1 Amplifier Circuit 35 4.1.1 Error Amplifier 35 4.1.2 Operational Amplifier 37 4.2 Comparator Circuit 40 4.3 Ramp Generator Circuit 41 4.4 Digital-to-Analog Converter (DAC) 45 4.5 Inductor Current Average Control (ICAC) 47 4.5.1 Sample and Hold Circuit (S&H) 49 4.5.2 Calculated Pulse Circuit 51 4.5.3 Consideration of Delay Time 55 4.6 Gate Driver with Dead Time Control 58 4.7 Power Stage Circuit 60 4.8 Simulation Results 63 4.8.1 Frequency Hopping 64 4.8.1.1 Spectrum 65 4.8.1.2 Transient Ripple on the Output Voltage 66 4.8.2 Efficiency 69 4.9 Performance Summary in simulation 70 Chapter 5 Experiment Results 71 5.1 Measurement Setup 71 5.2 Measurement Results 78 5.2.1 Static Measurement before using the Frequency-Hopping Technique 78 5.2.2 Frequency Hopping 79 5.2.2.1 Spectrum 79 5.2.2.2 Transient Ripple on the Output Voltage 82 5.2.3 EMI Reduction 88 5.2.4 Efficiency 90 5.3 Performance Summary 92 Chapter 6 Conclusion and Future Work 93 6.1 Conclusion 93 6.2 Future Work 93 Bibliography 94 | |
dc.language.iso | en | |
dc.title | 一個在切換頻率中利用電流平均控制來減低暫態漣波的控制方法之直流降壓式轉換器 | zh_TW |
dc.title | A Current Average Control Method for Transient-Ripple Reduction in Frequency Hopping DC-DC Converters | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳怡然(Yi-Jan Emery Chen),陳昭宏(Jau-Horng Chen) | |
dc.subject.keyword | 直流電壓轉換器,展頻,跳頻, | zh_TW |
dc.subject.keyword | DC-DC converter,spread spectrum,frequency hopping, | en |
dc.relation.page | 96 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2011-02-15 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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