Autors: Todorova, T. P.
Title: A Graphical Approach to Fast Identification of the Voltage and Current Requirements to Measure Core Loss at Target Measurement Conditions with Application to High-Frequency Power Amplifier Utilization
Keywords: graphical approach, core losses, measurements, voltage, curr

Abstract: For widening the knowledge about an accurate straightforward high-frequency magnetics' losses prediction, measurements of actual core loss are of paramount importance. In many cases, obtaining the loss of a core of specific shape under target operating conditions is an aim of a measurement. The specific measurement conditions and method adopted impose particular voltage and current requirements to the measurement set-up. This paper introduces a graphical representation of the voltage and current needed for core loss measurements at target conditions. The focus is put on sinusoidal excitation and the two-windings no-load transformer measurement method, while other measurement methods are also discussed. Then, the graph introduced is applied to identifying a high-frequency power amplifier's capability for core loss measurements at target conditions. The graphical approach presented provides a means for quick recognition of the requirements imposed by an envisaged core under test..



    2021 IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 2848–2856, 2021, United States, IEEE, DOI 10.1109/APEC42165.2021.9487351

    Вид: публикация в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus