Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/7579
標題: 使用快速暫態響應控制之雙模式直流/直流降壓轉換器
A Dual-Mode DC/DC Buck Converter with Fast Transient Response Control
作者: 郭榮凱
Kuo, Rong-Kai
關鍵字: Buck
降壓
PWM
transient response
脈衝寬度調變
暫態響應
出版社: 電機工程學系所
引用: [1] M. Brown, Power Supply Cookbook, 2nd Ed, Newnes,2001. [2] H.W. Whittington, B.W. Flynn, and D.E. Macpherson, Switched Mode Power Supply: design and construction 2nd edtion., Research Studues Press Ltd., 1997. [3] N. Mohan, T.M. Undeland, and W.P.Robbins, Power Electronics: Converter, Applications, and Design, 2ndEd., New York, Wiley & Sons,1995. [4] D. O'Sullivan, B. Spruyt, and A. Crausaz, ”PWM conductance control,” IEEE Power Electron. Spec. Conf. Record, pp. 351-359, 1988. [5] L. Dixon, “Average current mode control of switching power supplies,” in Unitrode Power Supply Design Seminar Handbook (SEM-700), pp.5-1 to 5-14, Unitrode Corporation, MA, 1990. [6] B.Carsten, “Current mode control for high frequency switch mode,” Power conversion and Intelligent Motion (PCIM), pp. 61-64, April 1986. [7] C. Deisch, “Simple switching control method changes power converter into a current source,” in Proc. IEEE Power Electronics Specialists Conf., pp. 300-306, 1978. [8] S. Hsu, A. Brown, L. Rensink, and R. Middlebrook, “Modeling and analysis of switching DC-to-DC converters in constant frequency current programmed mode,” in Proc. IEEE Power Electronics Specialists Conf., pp. 284-301, 1979. [9] A. I. Pressman, Switching power supply design, McGraw-Hill, New York, 1991. [10] A. Barrado, R. Vazquez, A. Lazaro, J. Pleite, and E. Olias, “Fast Transient Response with Combined Linear-Non Linear Control applied to Buck Converters,”33th Power Electronics Specialists Conf.,PESC'02, pp. 1587-1592, 2002. [11] C.F.Lee, and 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, pp.3-14, Jan.2004. [12] J. Sheng, Z. Chen, and B. Shi, “A 1V supply area effective cmos bandgap reference,” Proceedings of 5th International Conference on ASIC, vol.1, pp. 619-622, Oct. 2003. [13] C. Yoo, “A CMOS buffer without short-circuit power consumption,” IEEE Transactions on Circuits and Systems II, vol. 47, pp. 935-937, Sept. 2000. [14] D. Ma, W.-H. Ki, C.-Y. Tsui, and P.K.T. Mok., “Single-Inductor multiple-output switching converter with time-multiplexing control in discontinuous conduction mode,” IEEE Journal of Solid-State Circuit, vol. 38, no. 1, pp.542-547 , Jan.2003. [15] C. Y. Leung, P. K. T. Mok, and K. N. Leung, “A 1.2V buck converter with a novel on-chip low-voltage current-sensing scheme,” International Symposium on Circuit and System, vol. 5, pp. V-824-827, May 2004.
摘要: 本論文設計一個直流轉直流降壓切換式穩壓器,使其具備高轉換效率及快速暫態響應,適用於可攜式電子產品,例如:手機、數位相機、PDA等等。 為了提高功率轉換效率,採用PFM及PWM雙控制模式,分別運用在輕載及重載的情況下。此外還加入零電流偵測器,防止在輕載時發生逆電流,減少不必要的功率消耗。另外也設計軟啟動裝置,消除在最初啟動時,可能會對功率級元件造成損傷的過大電流。為了改善暫態響應,此系統加入一個快速暫態控制器以降低回復時間,使得當負載電流從15mA上升至600mA時,電壓回復時間從原本的33μs降至12μs,提升反應速度。最後,整體效率最高可達到94%。 此穩壓器是使用台灣積體電路製造股份有限公司所提供的0.35μm 2P4M 3.3V/5V Mixed Signal CMOS製程技術來設計與製造,整體晶片面積大約為1.5*1.5mm2。
The design of a DC-DC buck switching regulator for high power conversion efficiency and fast transient response is presented in this thesis. It is suitable for portable electronic applications powered by batteries such as mobile phone, digital camera, PDA, etc. To make power conversion more efficient, the regulator uses PFM and PWM dual control mode, for light load and heavy load condition, respectively. In addition, a zero current detector is used to reduce the unnecessary power consumption in light load. Furthermore, in order to eliminate the excess large current at the start up of the regulator that may damage the device of the power stage, the soft start circuit is designed. For improving the transient response, a fast transient controller is added to this system to reduce the transient response recovery time. Compared with the original circuit, the recovery time is reduced from 33μs to 12μs when load current suddenly changes from 15mA to 600mA. The dynamic response is effectively improved. Finally, the conversion efficiency could be up to 94%. The regulator is designed and fabricated with TSMC 0.35μm 2P4M 3.3V/5V Mixed Signal CMOS technology. The chip size is about 1.5*1.5mm2.
URI: http://hdl.handle.net/11455/7579
其他識別: U0005-2108200716441200
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-2108200716441200
Appears in Collections:電機工程學系所

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