Interleaved DC–DC converters are extensively employed in high-power applications to reduce input/output current ripple, elements current stress, and improve reliability. In order to eliminate the switching losses in interleaved converters, zero voltage transition (ZVT) technique can be used. This study presents a new compact ZVT cell appropriate for interleaved converters. This cell employs a low number of elements while imposing no extra voltage and current stresses on the converter main semiconductors. The proposed cell is applied to an interleaved boost converter to achieve full soft switching feature. The resulting ZVT interleaved boost converter is completely analysed and its design procedure is provided. Also, the converter is compared with the latest prominent counterparts presented in literature. Besides, its operation and theoretical analysis are validated by a 200 W and 100 kHz prototype. Finally, the proposed ZVT cell is applied to other types of interleaved converters and a family of ZVT interleaved converters is introduced.

中文翻译：

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交错式DC-DC转换器的高效ZVT单元

交错式DC-DC转换器广泛用于高功率应用中，以减少输入/输出电流纹波，元件电流应力并提高可靠性。为了消除交错式转换器中的开关损耗，可以使用零电压转换（ZVT）技术。这项研究提出了一种适用于交错式转换器的新型紧凑型ZVT单元。该单元使用少量元件，同时在转换器主半导体上没有施加额外的电压和电流应力。提出的单元应用于交错式升压转换器，以实现完整的软开关功能。完整地分析了所得的ZVT交错式升压转换器，并提供了其设计程序。此外，将转换器与文献中提出的最新著名同类产品进行了比较。除了，它的操作和理论分析已通过200 W和100 kHz原型验证。最后，将提出的ZVT单元应用于其他类型的交错转换器，并介绍了一系列ZVT交错转换器。