rentgaq.blogg.se - 1.02 mh 10a max ferrite core inductor

Remove the insulation from the coil ends.Now apply a thin layer of epoxy over the coil surface for mechanical support.

After the winding is complete, slowly withdraw the core without disturbing the coil.

The winding must be tight and adjacent turns must be as close as possible.

The coil must be first wounded on a plastic former of the adequate diameter (equal to the required core diameter).

The value of ‘l’ is multiplied by two if the value of ‘n’ is increased up to 40%. Thus the value ‘l’ is multiplied four times if the value of ‘n’ is doubled.

As shown in the equation, inductance of the air-core inductor varies as the square of the number of turns.

The length of the coil used in the inductor should be equal to or 0.4 times the diameter of the coil.

‘l’ is the length of the coil specified in inches.

‘d’ is the diameter of the coil from one wire centre to another wire centre.

Where’ L ‘ is the inductance in Micro Henries.

The inductance of an air cored inductor can be represented using the simplified formula shown below and to calculate the inductance of an air-core inductor, the same equation may be used. With a little practice and patience you can construct almost all air cored inductors at home.