Theoretical Calculation of Insertion Loss for EMI Filters and Fe-Base Nanocrystalline Soft Magnetic Material
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Abstract
Several theoretical formulae to calculate the insertion loss for EMI power line filters are derived from a four-terminal-pair network. The calculation results are in agreement with mesurements at lower frequencies. A new soft magnetic material is Fe-Base Nanocrystalline proposed for developing high performance EMI filters over the frequency range of 1kHz to 100 kHz.
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