Masato Kabetani
Toyota Industries Corporation, Electronics Division Engineering Department
Abstract
Miniaturization makes the thermal design become an important issue for vehicle electronic power supply development. For efficient thermal design, it is necessary to understand the loss distribution. JMAG is used to analyze transformer and coil.
Generally, ferrite material has low electric conductivity and Eddy current loss is neglected. However under the condition of high frequency and high temperature, electric conductivity increase several fold, and become no more negligible. We improve core loss estimation method by dividing Joule loss caused by the Eddy current across the core.
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