高效高频GaN DC/DC变换器的设计

2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI:10.1109/EPE51172.2020.9269211

Filipp Frolov, J. Lettl

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引用次数: 2

摘要

本文提出了一种基于GaN器件的高效高频同步降压变换器的设计。本设计采用氮化镓(GaN)场效应管实现高工作频率下的低功耗。采用同步降压拓扑，提高了系统效率，降低了导通损耗。转换器在100、200、400 kHz的几个频率上进行了测试。本文还对变换器的功率损耗进行了理论分析。设计并测试了同步降压变换器样机，峰值效率为98.9%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of High Efficiency and High Frequency GaN DC/DC Converter

This paper presents a design of a high efficiency and high frequency synchronous buck converter based on GaN devices. Gallium Nitride (GaN) FETs are applied in this design to achieve the low power losses at high operation frequency. Synchronous buck topology is used to increase the system efficiency and reduce conduction losses. Converter is tested in several frequencies 100, 200, 400 kHz. The paper also contains the theoretical analysis of power losses in the converter. A synchronous buck converter prototype is designed and tested with peak efficiency of 98.9%.

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2020 21st International Scientific Conference on Electric Power Engineering (EPE)

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