An interleaved parallel high step‐up DC‐DC converter with cross‐coupled inductors for low current/voltage ripple and auto‐current sharing was proposed in this paper. This converter applies interleaved parallel input which decreases the input current ripple significantly. Due to the interleaved coupling effect of three coils of the cross‐coupled inductors, this converter can realize automatic current sharing under asymmetric distribution of duty ratio of switch control signal or coupled inductors. By using the leakage inductance of coupled inductors, the proposed DC‐DC converter has high voltage gains and small voltage stress of the main switches and output diodes. Moreover, the proposed converter solves the reverse recovery problem of the output diodes at the minimum loss. In addition, its power switches realize zero‐current turn on. In this paper, working principle is analyzed thoroughly and performance of this topological circuit is verified through a prototype with 1 kW output. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

中文翻译：

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具有交叉耦合电感器的交错式并行高升压DC-DC转换器，可实现低电流/电压纹波和自动电流共享

本文提出了一种具有交叉耦合电感的交错式并行高阶升压DC-DC转换器，以实现低电流/电压纹波和自动电流共享。该转换器采用交错式并行输入，可显着降低输入电流纹波。由于交叉耦合电感的三个线圈的交错耦合效应，该转换器可以在开关控制信号或耦合电感的占空比不对称分布的情况下实现自动均流。通过使用耦合电感器的漏感，建议的DC-DC转换器具有较高的电压增益，并且主开关和输出二极管的电压应力较小。此外，提出的转换器以最小的损耗解决了输出二极管的反向恢复问题。此外，其电源开关可实现零电流导通。在本文中，彻底分析了其工作原理，并通过一个输出功率为1 kW的原型验证了该拓扑电路的性能。©2021日本电气工程师学会。由Wiley Periodicals LLC发布。