In this paper, a novel non-isolated interleaved DC/DC boost converter is presented in which coupled inductors and a passive clamp circuit are employed. ZCS turn-on condition for main switches is provided, and the stored energy in leakage inductance is recycled by means of a passive clamp circuit. Therefore, the voltage stress across switches is reduced resulting in circuit efficiency improvement. Due to interleaved structure and cross-coupled inductors, the input current ripple is reduced and the input current is continuous. To achieve ZCS turn-on condition, the intrinsic leakage inductance of the coupled inductors is used which leads to improving the power density and reducing the switching losses. In order to confirm the theoretical analysis, a prototype with 30 V input voltage, 300 V output voltage, and 300 W is implemented and tested.

中文翻译：

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具有无源钳位电路和低电流纹波的高增益交错式 DC-DC 转换器

在本文中，提出了一种新型非隔离交错式 DC/DC 升压转换器，其中采用了耦合电感器和无源钳位电路。为主开关提供ZCS导通条件，通过无源钳位电路回收漏感中储存的能量。因此，降低了开关两端的电压应力，从而提高了电路效率。由于交错结构和交叉耦合电感，输入电流纹波减少，输入电流连续。为实现 ZCS 导通条件，使用耦合电感器的固有漏电感，从而提高功率密度并降低开关损耗。为了确认理论分析，实现并测试了具有 30 V 输入电压、300 V 输出电压和 300 W 的原型。