In the case "A" all data are given, it is easy to find the inductance.Įxample 1. The inductance of the coil is given, calculate the number of turns and the diameter of the wire. The geometry of the coil is given, find the inductance ī. There is could be two tasks in the calculation:Ī. Inductance of single-layer coils on cylindrical winding forms can be calculated by the formula:ĭ - diameter of the coil (diameter of the former), mm Sometimes you need to wind a coil with a given geometry, and you don't have a wire with required diameter, then if use a thicker wire you should increase slightly number of turns, and if use a thinner wire it takes to reduce the number of turns of the coil to get the required inductance.Īll of the above considerations are related to winding coils without ferrite cores. If the coil is tightly wound, turn to turn, then it will have more inductance than a not tightly wound coil, with gaps between the turns.
The larger the diameter, length, and the larger number of winding turns, the greater its inductance. The inductance of a coil depends on its geometrical characteristics, the number of turns and the method of winding the coil. How to calculate coil inductance - Coil Inductance Calculator
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