Design and analysis of ZVZCS converter with active clamping
Journal Title: International Journal of Computer Science and Communication Networks - Year 2011, Vol 1, Issue 1
Abstract
The design and analysis of ZVZCS converter with active clamping is proposed. By adding a secondary active clamp and controlling the clamp switch moderately, ZVS (for leading leg switches) and ZCS (for lagging leg switches) are achieved without any lossy components, the reverse avalanche breakdown of leading-leg IGHTs or the saturable reactor in the primary. Many advantages including simple circuit topology, high efficiency, and low cost make the new converter attractive for high voltage and high power (> 10 kW) applications. The principle of operationis explained and analyzed. The features and design considerations of the new converter are also illustrated and verifiedon an 1.8 kW, 100 kHz IGBT basedexperimental circuit.
Authors and Affiliations
J. Sivavara Prasad , Dr. Ch. Sai babu , Dr. Y. P. Obelesh
Keywords
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