隨著製程的不斷進步，單顆晶片中能容納的電晶體數量愈來愈多，也發展出將整個系統都整合進一顆晶片中的概念，但不同的電路區塊需要不同的電壓來供應，因此需要電壓轉換器來滿足此項需求。為了使電壓轉換器的設計能更加快速，本論文提出一套針對電壓控制模式切換式升壓轉換器的自動化設計流程，設計範圍包括轉換器電路及控制電路的元件參數，並考慮元件的寄生阻抗使設計結果能符合實際電路特性。
為了實現整套流程，本論文已發展出一個自動化設計工具，讓使用者可以在工具的圖形介面中輸入所需的電路規格，接著工具會透過 C 語言程式進行穩態及小訊號分析來產生元件參數，並以 HSpice 進行模擬來驗證結果的正確性，而所有的步驟是以 Tcl/Tk 工具命令語言進行整合，也已成功地在 Linux 系統上測試完成。在所有的設計範例中，經由流程產生的電路皆可達到規格要求。

With the improvement of manufacturing process, more and more transistors can be placed in a chip. It drives the demand to integrate the whole system into a single chip. However, different blocks may require different voltage supplies, which require power converters to generate those voltages. In order to accelerate the design of power converters, an automatic design flow for the voltage-controlled step-up switching converters is proposed. This flow includes the design of the converter circuit and control circuit. It also considers the parasitic resistance of each component to ensure that the design can confirm the results with real devices.
To accomplish the flow, an automatic synthesis tool is implemented. Users can assign the specifications of the converter circuit on a simple graphical user interface (GUI). The steady state and small signal analysis are then auomatically executed to generate the parameter of each component by a C program. The result will be measured through HSpice simulation to confirm the circuit performance. All steps have been integrated with Tcl/Tk shell scripts and successfully tested on Linux platform. All the generated results meet the required specifications in the demonstrated cases.

[1] “Trends in digital electronics”, Nature Nanotechnology 5, 487–496 (2010)
[2] website information: http://bit.edu.in/courses.aspx Programmable Systems on Chip Lab, Bhubaneswar Institute of Technology (Bit)
[3] ”跳脫製程技術極限思維　3D IC再續摩爾定律”,趨勢眺望, 新通訊 2011 年 10 月號 128 期
[4] iSuppli Cop, August 2010
[5] H.Y. Luo, “Automatic Synthesis Flow of DC to DC Step-Down Converter Circuits", National Central University, Taiwan, MS. Thesis, June 2011.
[6] P. Favrat, P Deval, and M.J. Declercq, “A High-Efficiency CMOS Volttage Doubler," IEEE J. Solid-State Circuits, vol. 33, NO.3, pp. 410-416, March 1998.
[7] ‘’Power in Portable Systems,’’ National Semiconductor Corporation, 2006.
[8] S.H.M. Ali, P.R. Wilson, and A.D. Brown, "Yield Predictive Model Characterization In Analog Circuit Design", International Symposium on Integrated Circuits, pp. 289 - 292, 2007.
[9] Maria del Mar Hershenson, "CMOS analog circuit design via geometric programming," Proceedings of the American Control Conference, pp. 3266 – 3271, Vol.4, 2004.
[10] W. Daems, G. Gielen, and W. Sansen, "Simulation-based generation of posynomial performance models for the sizing of analog integrated circuits", IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, pp. 517 - 534, Vol. 22, Issue:5, 2003.
[11] K. Kittipeerachon, C. Bunlaksananusorn, ‘’Feedback compensation design for switched mode power supplies with a right-half plane (RHP) zero,’’ IET Power Electronics, Machines and Drives, vol. 1, pp. 236-241, 2004.
[12] Y.J. Lin, “A Boost Regulator with Voltage-Mode Control for Low Voltage Applications", National Cheng Kung University, Taiwan, MS. Thesis, July 2006.
[13] H.Y. Luo, H.W. Li, C.H. Chang, L.C.Yeh, and C.N. Jimmy Liu, "Power Converter Synthesis Flow for SOC Applications", the 22nd VLSI Design/CAD Symposium, Yunlin, Taiwan, August 2011.
[14] H.Y. Luo, H.W. Li, L.C. Yeh, and C.N. Jimmy Liu, "Automated Synthesis Design Flow of Power Converter Circuits Aimed at SOC Applications", IEEE International Symposium on Integrated Circuits (ISIC) (EI), December 2011.
[15] R.W. Erickson and D. Maksimovic, Fundamentals of Power Electronics, 2nd edition, Norwelll, MA: Kluwer Academic Publishers, 2001.
[16] N. Mohan, T.M. Undeland, W.P. Robbins, Power Electronics: converters, Applications, and Design, 3rd Edition, John Wiley & Sons, Inc, 2003.
[17] On line resources, Mack Grady, DC-DC Buck Converter, The University of Texas at Austin, 2009.
[18] website information: http://www.dataweek.co.za/news.aspx?pklnewsid=31635, ‘’loop compensation of voltage-mode boost converters’’, information from Exar 3.
[19] T. Ytterdal, Y. Cheng and T.A. Fjeldly, ‘’Device Modeling for Analog and RF CMOS Circuit Design’’, John Wiley & Sons, Ltd, 2003
[20] Christophe P. Basso, “Switch-Mode Power Supplies Spice Simulations and Practical Designs”, McGraw-Hill, 2008.
[21] B.P. Divakar, K.W.E. Cheng, D.Sutanto, S. Zhanghai and K.F. Kwok, “The use of power factor and K-factor as goodness factors in the analysis of dc-dc converters,” proceedings of AUPEC -2008, Paper P-198.
[22] B. Girod, R. Rabenstein, A. Stenger, ‘’Signals and systems’’, 2nd ed., Wiley, 2001
[23] On line resources, SMD Unshielded Power Inductors - SCD Series, CHILISIN, from http://www.chilisin.com.tw.
[24] On line resources, Surface Mount Specialty Polymer Solid Aluminum Electrolytic Capacitors- NSP Series, NIC Components Corp., from http://www.niccomp.com/index.php
[25] K. Jung, J. Lim, J. Park, H. Yang, S. Cha and J. Choi, “A high efficiency CMOS DC-DC boost converter with current sensing feedback,” Midwest Symposium on Circuits and Systems, Vol. 2, pp. 1661-1664, 2005.