本論文主要探討寬範圍輸出應用於電池充電站，並實際研製一寬範圍輸出轉換器原型機。參照相關文獻後，提出幾點架構作為寬範圍輸出使用，並逐一分析與比較，最終選出全橋架構使用；而全橋操作模式以傳統全橋架構與全橋相移作為介紹。因應寬範圍輸出，本論文次級側採用兩個模式切換：第一個模式為全橋，提供給低輸入高輸出電壓時使用，第二個模式為中心抽頭，提供給高輸入低輸出電壓時使用。控制採用數位控制，包含輸入輸出電壓偵測及模式切換，以控制初級側與次級側功率開關脈波寬度調變(Pulse-Width Modulation, PWM)的方式達到改變輸出電壓之目的。論文中以效率出發，選擇效率高的架構及對磁性元件進行優化設計，其中變壓器為了縮小體積，提升功率密度，而採用平板變壓器設計。再者，依據理論推導出的元件數值進行模擬，模擬軟體使用Simplis，以驗證電路的可行性。實測結果中實現輸入電壓36V至48V，輸出電流最高80A，最大輸出功率960W的寬範圍輸出之全橋轉換器，最高效率達到96％。

This thesis mainly discusses the application of wide-range output to the battery charging station, and develops a prototype of a wide-range output converter. After referring to the relevant literature, several architectures are proposed to be used as wide-range outputs, then analyzed and compared one by one. Finally, the full-bridge architecture is selected for used; while the full-bridge operation mode uses the traditional full-bridge architecture and the phase shift to introduction. In response to the wide range of output, two modes are used on the secondary side of this essay: the first mode is full bridge, which is used for low input and high output voltage; the second mode is center tapped, which is provided for high input and low output voltage. The digital control including input and output voltage detection and mode switching, to achieve the purpose of changing the output voltage by controlling the pulse-width modulation (PWM) of the primary side and secondary side power switches. Based on efficiency, a high-efficiency architecture is selected and the magnetic components are optimally designed. In order to reduce the volume then improve the power density, the transformer adopts planar transformer design. Furthermore, the simulation uses Simplis to verify the feasibility of the circuit. In the actual measurement results, a wide-range output full-bridge converter with an input voltage from 36V to 48V, an output current of up to 80A, and a maximum output power of 960W is realized, and the highest efficiency reaches 96%.

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