A new transformer-less boost-based DC–DC converter is suggested in this research. The voltage gain of the proposed converter is enhanced employing a charge-pump circuit (CPC) and n -stages of voltage multiplier cells (VMC). Each VMC consists of one inductor, one diode, and two capacitors. As the number of these VMC stages ( n ) increases, it is feasible to achieve high voltage gains with low duty cycles. Furthermore, by expanding n , a significant reduction of the normalized peak voltage stress (NPVS) of the components is possible. Due to this feature, using the MOSFET switches with low ON-state resistance and the low-rating voltage components is provided which results in diminishing the conduction and switching losses. The steady-state analysis is accomplished in details and the comparison considering other converters in the literature is presented in this manuscript. Validating of the converter performance is accomplished by implementing a laboratory prototype for the power of 300 W, input, and output voltages of 30 V and 310 V, respectively, and switching frequency of 40 kHz. Experimental results validate the mathematical analysis.

中文翻译：

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一种扩展的高压增益 DC-DC 转换器，可降低开关/二极管上的电压应力

本研究提出了一种新的无变压器升压型 DC-DC 转换器。采用电荷泵电路 (CPC) 和 n 级电压倍增器单元 (VMC) 来增强所提出的转换器的电压增益。每个 VMC 由一个电感器、一个二极管和两个电容器组成。随着这些 VMC 级数 (n) 的增加，以低占空比实现高电压增益是可行的。此外，通过扩大 n ，可以显着降低组件的归一化峰值电压应力 (NPVS)。由于此特性，使用具有低导通电阻和低额定电压组件的 MOSFET 开关，从而减少导通和开关损耗。详细完成了稳态分析，并在本手稿中介绍了考虑文献中其他转换器的比较。转换器性能的验证是通过实现功率为 300 W、输入和输出电压分别为 30 V 和 310 V 以及开关频率为 40 kHz 的实验室原型来完成的。实验结果验证了数学分析。