This paper introduces a novel modular active snubber cell for isolated half-bridge converters with ease of control. The novel snubber cell can achieved soft switching for all semiconductors at the proposed converter. The switches in the converter are derived simultaneously by the normal pulse-width modulation signals. The introduced snubber cell has a quite simple structure and ease of control. In this converter, the main switches turn on with zero current switching and turn off with zero voltage switching. Besides, there is no extra voltage stresses on the power elements. The proposed half-bridge DC–DC converter is analyzed in detail and its theoretical analysis is verified with a prototype having 50 A–25 V output values at 80 kHz frequency.

中文翻译：

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一种用于软开关隔离式 PWM 半桥变换器的新型有源缓冲单元

本文介绍了一种用于隔离式半桥转换器且易于控制的新型模块化有源缓冲器单元。新型缓冲器单元可以在所提出的转换器中实现所有半导体的软开关。转换器中的开关由正常的脉宽调制信号同时导出。引入的缓冲单元结构非常简单，易于控制。在该转换器中，主开关以零电流开关开启，以零电压开关关闭。此外，功率元件上没有额外的电压应力。对所提出的半桥 DC-DC 转换器进行了详细分析，并使用在 80 kHz 频率下具有 50 A-25 V 输出值的原型验证了其理论分析。