相移全橋直流轉換器之研製

Design and Implementation of Phase-Shift Full-Bridge DC Converter

張鎮東(Chen-Tung Chang)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00399

摘要

本論文的主要目的是在研究諧振電感對相移全橋直流轉換器效能的影響，諧振電感值的大小直接影響諧振發生的可能性，進而影響功率開關於零電壓切換之特性。欲達最佳之零電壓切換，此諧振電感值與功率開關的寄生電容以及輸入電壓的平方有關。
本論文研製出一套相移全橋直流轉換器，其設計規格如下：輸入電壓156 V/DC、輸出電壓48 V/DC及輸出功率0.5 kW。實驗結果顯示此轉換器的最佳效率為89.38%，在滿載的情況下之效率為87.71%，此結果確實驗證了理論分析之真實性。

關鍵字

相移全橋 ； 零電壓切換 ； 諧振電感

並列摘要

The objective of this thesis is to investigate the effect of resonant inductor on the performance of phase-shift full-bridge DC converter. It shows that the inductance value will affect the resonance as well as the zero-voltage-switching turn-on feature. To achieve zero-voltage-switching, the inductance value is related to the parasitic capacitance of power device and the square of input voltage.
A phase-shift full-bridge DC converter has been designed and implemented. The specifications of this converter as following: input voltage = 156 V/DC, output voltage = 48 V/DC and output power = 0.5 kW. The experimental results show that the maximum efficiency is 89.38% and the efficiency at full load is 87.71%. This result proves the theoretical analysis.

並列關鍵字

Phase-Shift Full-Bridge ； Zero Voltage Switching ； Resonant Inductor

參考文獻

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