近年來，為了環境永續發展使得電動汽車相關技術快速進展。如何使
電動汽車上之轉換器工作於寬範圍應用，並具有重量輕、功率密度高和尺
寸減小等優勢成為未來重要的研究議題。本論文研究了傳統的隔離式DC-DC
全橋諧振變換器與介紹了不同控制方法。論文中首先針對全橋諧振轉
換器穩態分析，並提出一系統化的參數設計流程，使轉換器能應用於寬範
圍。最後，使用數位信號處理器TMS320F28335 實現了寬輸入輸出範圍
全橋DC-DC 諧振轉換器的實驗樣板，轉換器的輸入電壓為220-450 V，
輸出電壓為9-16 V，輸出額定功率為2.5 kW，並使用二次側同步整流用
於提高效率。實驗結果顯示，設計之參數可以實現寬範圍的輸入和輸出電
壓，其最高效率為95%。

In recent years, electrical vehicles (EVs) have rapidly developed for
environmental sustainability. EVs technology on converters can achieve not
only wide-range applications but also have advantages of light weight, high
power density and size reduction. As such, EVs systems have become a very
important research topic. The conventional isolated DC-DC full-bridge
resonant converter and switching control functions are introduced in the thesis.
Then, the full-bridge resonant converter is analyzed with steady-state
conditions and a systematic design method is performed to attain wide-range
applications. Finally, the experimental prototype of a wide input and output
range full-bridge DC-DC resonant converter with an input voltage of 220-450
V, output voltage of 9-16 V, rated power of 2.5 kW is implemented with digital
signal processor TMS320F28335, and secondary-side synchronous rectifiers
are used to increase efficiency. Experimental results show that wide-range input
and output voltage can be achieved by designed parameters, with its highest
efficiency at 95%.

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