Tag: air core

  • Multilayer air core inductor design calculator

    Multilayer air core inductor design calculator

    The formula used in this calculation is from the famous Wheelers approximations which is accurate to <1% if the cross section is near square shaped. L (uH) =31.6*N^2* r1^2 / 6*r1+ 9*L + 10*(r2-r1) where… Please note that the diameter is measured from center of wire trough center of the coil and to center of…