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Saturday, 22 December 2012

Real Life Inductor : When Does An Inductor Stop Behaving Like One

  1. When current is too high – because of magnetic saturation image
  2. When signal of interest is of too high frequency – higher or near inductor self resonant frequency. There are parasitic capacitance across inductor winding  so in a way, we have parallel LC circuit, at high enough frequency, the impedance of C will gets low enough to shunt out the impedance of inductor.

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