An interleaved high step‐down coupled inductor based quadratic DC‐DC converter

Abstract

A high step‐down direct current‐direct current (DC‐DC) buck converter with a coupled‐inductor in its topology is presented in this study. The switching pattern of the proposed converter is interleaved; therefore, the voltage stress on the semiconductors and the components is low since the primary high voltage will be divided between the blocking capacitors on the primary side. Thus, the voltage stress on semiconductor elements will be low. As a result, the preselected elements can be chosen with low voltage ratings. In addition, there are cells with coupled inductors utilized in the structure that helps the converter to provide improved voltage gain in its output terminal. Typically, narrow duty cycles are needed to achieve high gain in conventional buck converters, but the proposed converter has obtained a high conversion ratio even with wider duty ratios. Besides, the proposed converter has a constant equation for the voltage gain for the whole range of duty cycles. Theoretical analysis and comparison with other recent converters of similar types have been conducted to demonstrate the proposed converter performance. Furthermore, to verify the theoretical analysis, a 600 W prototype of the proposed converter with 820 V/30 V is implemented, and experimental results are presented.

Ultra high voltage gain non-isolated DC-DC converter based on new interleaved triple boosting technique

“…DC-DC converters are extensively employed in diverse fields such as telecommunications, automotive, renewable energy, and portable electronics (Abbasi and Lam, 2019;Rahimi et al, 2021;Rajesh and Prabaharan, 2023). By utilizing switching techniques and control circuitry, these converters efficiently step up or step down the voltage levels while minimizing power loss (Babaei et al, 2018b;Fardahar and Sabahi, 2019;Premkumar et al, 2019;Allehyani, 2021;Zaid et al, 2021a;Zaid et al, 2021b;Pashaie et al, 2023). Their compact size, high efficiency, and reliable performance make them indispensable for optimizing power utilization and meeting the voltage requirements of modern electronic systems (Mirzaee and Moghani, 2019;Farahani et al, 2023;Hasanpour et al, 2023).…”

“…Furthermore, in (Zaid et al, 2021a) describes an improved high-gain DC-DC boost converter that utilizes two (VMCs) consisting of (SC) and (SL) to enhance the voltage gain. Finally, in (Fardahar and Sabahi, 2019;Allehyani, 2021;Zaid et al, 2021a;Mansour et al, 2022;Singh et al, 2022;Pashaie et al, 2023) discuss a proposed basic bidirectional converter with five switches based on the (SC-SI) configuration. However, these converters have the advantage of achieving high voltage gain ratios.…”