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Why does the impedance curve of a common-mode inductor exhibit a "plateau region" at high frequencies?

Time：2025-12-30 Views：45次

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The platform region (typically >10MHz) is caused by the following factors: the formation of an equivalent LC network due to parasitic capacitance and inductance, high-frequency loss of core material (increase in μ" component), skin effect of windings, and proximity effect.

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