JIC_V2_N2_RP2 P. Melba Mary R. Anand V. Akila Journal on Instrumentation & Control Engineering 2321 – 1148 2 2 11 17 Buck Converter, Boost Converter, Sliding Mode Control (SMC), Dynamic Response, Genetic Algorithm (GA) This project shows the use of optimization techniques for DC-DC buck and boost converter. Nowadays, dc-dc converters are used in many applications. The sliding mode control based on variable structure system theory has been examined by buck and boost switching mode converter type. In this project, the dynamics response of both buck and boost converter can be increased by using some optimization techniques. The sliding mode control strategy has been proposed to ensure system stability even when the large input voltage and load variation, and the dynamic response can be increased. The sliding surface has been selected by assigning the poles combined with genetic algorithm which it will give sliding regime. The simulation result of the proposed genetic algorithm based SMC strategy is compared with the existing SMC. The proposed GA based SMC gives considerable improvement in faster output voltage response during load variation. February - April 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2953