本文實際設計研製一非隔離雙向直流-直流轉換器，控制策略採取柔切控制與相移控制方式，使得在輕載至滿載範圍皆能達到更高的效率。本文使用Microchip公司推出的dsPIC33FJ16GS502微控制器作為數位控制核心，藉以完成一個數位化控制的雙向直流-直流轉換器。實驗結果驗證，所研製的300W轉換器輕載效率可達到92%，滿載效率可達到97%。

This thesis studies the design and implementation of a non-isolated dual-half-bridge bidirectional DC-DC converter. Using the presented topology, high efficiency can be achieved under wide-range load variations by the zero-voltage-switching features and phase-shift control method. In this thesis, dsPIC33FJ16GS502 digital signal controller (DSC) is utilized to implement the digital controller of the bidirectional DC-DC converter. According to the experimental results, a light-load efficiency over 92 % and a full-load efficiency over 97% can be achieved.

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