A Design and Implementation of a Novel Multi-Stage Ultra High Gain DC-DC Converter with Active LC2D Network

Abstract

This paper presents a novel multi-stage ultra-high gain DC-DC converter with minimal components, including a single semiconductor switch. It achieves high voltage gain at lower duty ratios, reducing voltage stress on the switch and diodes. The converter utilizes a network of an active inductor, capacitor, and two diodes, known as LC2D network (also called as active switched inductor capacitor network (SLCN)). The analysis focuses on the converter's performance derived from the n-stage SLCN converter, with emphasis on the basic stage. The compact design makes it suitable for renewable energy, electric vehicles, and fuel cell applications. The working principle and steady-state analysis are explained, supported by simulation results to validate the theoretical analysis. This innovative converter offers exceptional performance and has various applications. © 2023 IEEE.