Abstract

With the advancement of high-frequency switching devices, electromagnetic interference (EMI) has become a problem in power electronic converter designs. It is necessary to consider electromagnetic compatibility (EMC) design and possible EMI levels. This paper describes how to compute magnetic fields from converter EMI currents for a converter design. Firstly, modeling techniques for converter circuit components are discussed for a wide band frequency model by the parameter tuning method. Then a derived model is simulated for harmonic distributions of a loop current and its magnetic field. Examples including resonant type converters are discussed.

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