Performance analysis of buck, boost, and buck-boost converters under variable load conditions
Department of Electronics and Communication Engineering, Government Residential Polytechnic for Women’s, Shimoga, Karnataka, India.
Research Article
World Journal of Advanced Research and Reviews, 2020, 08(03), 522-530
Article DOI: 10.30574/wjarr.2020.8.3.0456
Publication history:
Received on 02 December 2020; revised on 15 December 2020; accepted on 21 December 2020
Abstract:
This paper presents a comprehensive performance analysis of three fundamental DC-DC power converter topologies: Buck, Boost, and Buck-Boost converters under variable load conditions. The study examines efficiency characteristics, voltage regulation, transient response, and thermal performance across different loading scenarios. Through detailed circuit analysis and simulation studies, we evaluate the converters' behavior under light load, nominal load, and overload conditions. The research demonstrates that Buck converters maintain superior efficiency at high loads (>85% at 90% load), while Boost converters show better performance under light load conditions. Buck-Boost converters exhibit moderate performance across all load ranges but provide the flexibility of both step-up and step-down voltage conversion. Experimental results validate the theoretical analysis and provide insights for optimal converter selection based on application requirements.
Keywords:
DC-DC converters; Buck converter; Boost converter; Buck-Boost converter; Variable load analysis; Power electronics.
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Copyright © 2020 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0