Mandal, S.Prabhakaran, P.2026-02-0620232023 IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy: Power Electronics, Smart Grid, and Renewable Energy for Sustainable Development, PESGRE 2023, 2023, Vol., , p. -https://doi.org/10.1109/PESGRE58662.2023.10405162https://idr.nitk.ac.in/handle/123456789/29317This paper presents a novel Non-Isolated Ultra High Gain DC-DC Converter with Single Switch, featuring two boost cell networks: a capacitor and two diodes (C2D) boost cell, and two capacitors, two inductors, and three diodes (2C2L3D) boost cell. The innovative combination of the two aforementioned boost cells achieves an unprecedented level of ultra-high gain, while reducing voltage stress across the switch and diodes and minimizing component count compared to existing high-gain converters. The proposed converter exhibits exceptional adaptability, operating efficiently with a wide range of duty ratios for diverse voltage conversion scenarios. A comprehensive explanation of the working principle and steady-state analysis is provided, along with a detailed comparison to state-of-the-art high-gain converter topologies. Extensive theoretical analysis and precise MATLAB simulations confirm the converter's superior performance and efficiency, solidifying its potential for practical applications. © 2023 IEEE.Electric vehiclefuel cellnon-isolated ultrahigh gain boost converter renewable energy applicationsteady-state analysisvarious boost cell