In this study, a non-isolated high gain DC–DC converter is presented. The proposed converter yields a voltage conversion ratio value which is a cubic function of the voltage gain obtained from a boost converter. The proposed converter is synthesised by judiciously interfacing a two-phase interleaved boost converter with voltage-lift capacitor and a quadratic boost converter. Resultantly, the proposed converter yields a practical voltage gain of 21.11. Further, due to the use of interleaving technique, the input current is completely free from ripples. The proposed concept is validated by conducting experiments on 18/380 V, 160 W prototype converter. The experimental results clearly demonstrate that the proposed converter operates at a full-load efficiency of 95.6%. Further, by practically implementing a simple closed-loop control, the output voltage of the converter is quickly regulated against variations in input voltage and load current so as to provide the desired 380 V across the load terminals.

中文翻译：

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具有立方电压增益和无纹波输入电流的非隔离式DC-DC转换器

在这项研究中，提出了一种非隔离式高增益DC-DC转换器。提出的转换器产生的电压转换比值是从升压转换器获得的电压增益的三次函数。通过明智地将两相交错式升压转换器与升压电容器和一个二次升压转换器接口，可以合成提出的转换器。结果，提出的转换器产生21.11的实际电压增益。此外，由于使用了交错技术，因此输入电流完全没有波动。通过在18/380 V，160 W原型转换器上进行实验，验证了提出的概念。实验结果清楚地表明，提出的转换器在满载效率为95.6％的情况下工作。此外，通过实际实施简单的闭环控制，