摘要
本文探討數位化控制器應用於行動電源的操作上，使得直流電源轉換器電路之操作可穩定地達到預設的輸出電壓，並在有輸入電源時可以對鋰電池進行穩定的充電，同時可對於輸出端負載提供穩定的電源。當無輸入電源時，可由鋰電池提供電源至輸出端的負載。本論文使用微控制器Arduino作為數位控制核心，使其可自動判斷輸入電源的有無，得以用來判斷是否要使用鋰電池當作電源對於輸出端提供能量，且利用數位控制的技術來調控輸出電壓的大小和穩定輸出電壓，並可用螢幕顯示技術以增加使用上之便利性。本研究是先利用模擬軟體來驗證電路操作的可行性，接著以實作電路來與模擬結果相驗證，並且將控制器參數實現在此電路上，用以達到電能的傳輸與鋰電池充放電之目的。
並列摘要
How digital controllers can be applied to the operation of portable UPS is being discussed in this thesis. The operation of the DC power converter circuit can reach the preset output voltage steadily. In this study, the Arduino microcontroller is used as a digital control center for automatic discovery of the presence or absence of input power. This enables the determination of whether to use the lithium battery as the power supply on the output end or not. Therefore, the technical characteristics of this portable UPS are that: (1) Whenever a stable external power supply is available, the lithium battery can be recharged whilst acting as a power source for the loading at the output end.(2) Whenever an external power supply is unavailable, the lithium battery automatically provides power for the output loading. As an additional advantage, the benefits of using digital control technology also include the following conveniences: (1) The size of the output voltage level can be adjusted. (2) The output voltage can be stabilized.(3) Output voltage readings are available on an LCD screen.The feasibility of the circuit performance is initially verified by utilizing simulation software. The actual circuit is then assembled and its results compared and verified with that of the simulation. To follow-up, the controller parameters are implemented on the actual circuit for the purpose of achieving uninterrupted power supply and the timely charge and discharge of the lithium battery.