Coaxial HF Power Transformer with Tubular Linear Windings -FEM Results vs. Laboratory Test

Abstract

Proposed here paper describes coaxial power transformer with tubular linear windings for high frequency applications. Description of design and power properties of transformer are included. Properties were obtained by FEM calculations using 2D ANSYS software and by measurements based on calorimetric method. Performed analysis shows very good properties of transformer in high frequency power conversion (at 1 MHz efficiency is 99.4% and output power 4.3 kW) Laboratory tests done in narrow range of power (0 to 500 W) confirm computational results