Design and Analysis of Medium Power Planar Transformers for High Frequency Power Electronics Applications

Abstract

Transformers perform the function of isolation in power electronic circuits by newlinepreventing system transients at input or output side from affecting the other side. But newlineusage of traditional transformers is not practical in many power electronic applications newlinedue to their associated high volume and weight. Hence, high frequency transformers were newlineintroduced which ensured that the same power was transferred with a transformer having newlinea lower profile, volume and weight. However, wire-wound transformers operating at a newlinehigh frequency pose several challenges like heating problems, higher winding losses, and newlineparasitic effects. newlinePlanar magnetics is an emerging technology that employs planar windings instead newlineof wire windings, thereby enabling a better thermal design, compact structure and easy newlinerepeatability. Planar transformers are commonly utilized in switched mode isolated power newlineconverters working at high frequencies newline