基于氮化镓的有源箝位反激变换器通过辅助漏电感实现宽电压范围软开关

2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI:10.1109/PEDG56097.2023.10215286

Lunbo Deng, Guohua Zhou, Yang Li, Haikun Yu

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引用次数: 0

摘要

有源箝位反激变换器(ACF)通常利用磁化电感的能量来实现低输出功率下的零电压开关(ZVS)。通过漏电电感实现零电压转换可以提高输出功率。本文详细分析了考虑寄生参数的工作原理，提出了通过增加辅助漏感实现宽电压范围ZVS的设计和调试过程。通过工作频率为500kHz的200W样机，验证了辅助漏感设计的有效性。

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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GaN-Based Active Clamp Flyback Converter Realizing Soft-Switching over Wide Voltage Range through Auxiliary Leakage Inductor

Active clamp flyback (ACF) converters commonly take magnetizing inductor energy to realize zero-voltage-switching (ZVS) in low output power. However, the output power could be improved by realizing ZVS through the leakage inductor. This paper analyzes the detailed operation principle with the consideration of parasitic parameters, then presents a design and debugging process by adding auxiliary leakage inductance to help realize ZVS over wide voltage range. The effectiveness of auxiliary leakage inductance design is verified with a 200W prototype working at 500kHz.

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2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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