Help on parasitic resistance

Discussion in 'The Projects Forum' started by red007, Apr 11, 2011.

  1. red007

    Thread Starter New Member

    Apr 11, 2011
    2
    0
    Given the DC resistance of an inductor (from the datasheet), how can you calculate its parasitic resistance?
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,087
    3,026
    Why do you think these are different quantities?
     
  3. Adjuster

    Well-Known Member

    Dec 26, 2010
    2,147
    300
    It depends what you mean. The DC resistance is a parasitic resistance, but if you require an equivalent AC loss resistance for a coil, this will not have a simple relationship to the DC value. Other things like skin effect, eddy currents and hysteresis loss may come into play.
     
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