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Substantial attention has been drawn over the past few years by high step-up dc-dc converters owing to their applications in a wide range. Apart from renewable energy applications, high voltage/ high pulse converters are efficiently used in water treatment applications. The converter suggested a combination of Quadratic and SEPIC converters with a diode-capacitor cell. This topology generates high-voltage repetitive pulses with a single semiconductor switch and reduced component count. The stress across the components is less than the high-gain converters reported in the literature. The topology has an extendable feature by increasing the number of diode-capacitor cells without affecting the stress. The superiority of the high pulse generating topology is validated with a similar converter in the literature. This paper discusses the nL5 simulator results for the proposed rated topology required for water treatment. A scaled-down 50 W prototype is tested for various input voltages to generate high voltage pulse, and the analytical study is validated. [ABSTRACT FROM AUTHOR]

This paper examines the family of high gain DC-DC converter derived from I-IIA configuration, primarily based on Reduced Redundant Power Processing (RRPP). The primary intention of this study is to determine the best topology for high voltage applications. The steady-state analysis of the proposed topologies is investigated and verified. The denominators of the voltage conversion ratio are observed to be similar for all the derived topologies, and they are in quadratic form. A comprehensive assessment is done based on voltage gain, voltage stress across storage element, switch stress voltage, switch utilization factor and inductor value. The best topology is identified and analyzed thoroughly in Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). Also, its performance evaluation and reliability study are also carried out. The advantage of that topology is validated using theoretical and simulation results. Finally, 40 W prototype is developed to verify the results. [ABSTRACT FROM AUTHOR]