本論文提出一新型隔離式高升壓轉換器，電路架構採用主動切換式電感與倍壓整流技術來實現高升壓比，同時具有架構簡單與易於控制，且操控於低開關責任週期與低匝數比下即可得到高升壓等優點，使用寬能隙功率元件氮化鎵（GaN），使轉換器操作於高頻下也能保持高效率，進而縮小體積提升整體功率密度。
本論文內容包含說明轉換器操作在連續導通模式下之動作分析，與分析此轉換器在不同開關責任週期與匝數比下的電壓轉換比以及元件參數設計、開關元件選用、驅動電路設計，並以SIMPLIS模擬驗證其可行性。
最後，參照太陽能光電模組規格，研製一輸入電壓40V、輸出電壓400V、輸出功率400W，操作頻率為500 kHz之電路雛型，並藉由實驗結果驗證此架構特性與效率，在200W時最高效率可達92%。

This thesis presents a novel isolated high step-up converter. Without operating under a high duty cycle or a high turn ratio, using the active switched-inductor and voltage multiplier rectifier technology can achieve a high voltage gain. Also, the advantages of this converter have high voltage gain, simple structure, and easy control. The thesis includes an analysis of the operating principle of this converter, the component parameter design, the gate driver circuit design, and the voltage ratio of the proposed converter under the different turns ratio and duty cycles. Simulated results are obtained by the software SIMPLIS.
Finally, a prototype circuit with 40V/400V, the output power of 400W, and a switching frequency of 500 kHz are implemented to verify the feasibility of the proposed converter. The maximum efficiency is 92% at Po = 200 W.

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