在可攜式電子產品蓬勃發展的世代，電源管理IC的需求也日漸增加。為了延長使用時間，降低系統整體功率消耗，節能省電亦是電源管理IC的課題之一。針對此需求，本論文提出電流控制模式降壓轉換器的自動化設計流程，可快速設計出合適的電壓轉換器，不僅可達成適中的輸出漣波電壓與高轉換效率，也考慮到轉換器電路元件的等效阻抗特性，使結果能更符合實際的電路特性。此自動化流程是以Tcl/Tk工具命令語言(Tool Command Language)為介面整合出一個可在Linux系統上執行的自動化工具。使用者於工具的圖形介面中輸入所需的電路規格後，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是否符合輸入之規格。本論文詳述電流控制模式降壓轉換器的自動化流程，最後並以設計範例來進行驗證，結果證明經由此流程產生的電路皆可達到規格要求。With rapid growth of electronic portable devices, the demand of power management ICs is also increasing. In order to extend battery life, reducing the overall system power consumption is one of the major concerns for power management ICs. For this demand, an automatic design flow for the current-mode control buck converter circuit is proposed in this thesis. This flow can design the required voltage converters in a short time with moderate output ripples and high converting efficiency. Since the equivalent resistance of each component is also considered, the circuit performance can better match the real behaviors.Integrated with Tcl / Tk (Tool Command Language) shell scripts, this automatic design flow is implemented as an automation tool that can be executed on Linux platform. After users input the specifications of the required converter circuit in the GUI (graphical user interface), this tool will execute steady-state and small-signal analysis by the developed C program and generate the parameters of each component. HSpice simulation is then used to verify whether the results meet the given specifications. Besides the details of the proposed automatic design flow, several design examples of the current-mode control buck converter are also presented in this thesis to semonstrate that all the generated circuits can meet the requirements.
