JPS_V1_N3_RP4 Samuel Rajesh Babu M. Sonai Journal on Power Systems Engineering 2322–0376 1 3 21 27 Conversion Efficiency, Interleaved Boost Converter, Active Clamp, High Voltage Gain This paper presents a Three-phase Non isolated Inter leaved boost converter (IBC) for high step up operation. Three-phase IBC has a number of boost converters connected in parallel with same switching frequency. Three-phase IBC are highly preferred to reduce the ripple current. A boost converter is used to clamp the voltage stresses of all the switches in the Inter leaved converter which is caused by the leakage inductance. This paper focuses on the leakage energies of the interleaved converter and are collected in a clamp capacitor and then recycled to the separate load by the clamp boost converter. Simulation and experiment results have been performed to understand the efficiency of three-phase IBC and the results have been validated. August - October 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2464