You can determine the A L Value in uH or mH.Īs an Example, I wound 20 turns of wire on a Ferrite Rod.
Now using One of the Two "A L Value Formulas" in the Picture Below, I usually Recommend 100 Turns, but if accuracy isn't important, 10 or 20 turns will do. Note: More Turns Results in a More accurate answer. Wind a Specific Number of turns on the Unknown Core.
You "Do Need an Inductance Meter", Or some other method of Determining the Inductance.Ī Signal Generator and a Oscilloscope would work, using a Known Capacitor to create a Resonance. However in order to Determine the A L Value of a Ferrite core, Knowing the A L Values of a Ferrite, (or Other Core Materials) Allows a person to EasilyĬalculate the turns required for winding different Values of Inductance on Specific Inductor Cores. Or for that matter, Iron Core Inductors Also. This article is to help those persons wanting to wind coils on Ferrite Inductors. Ferrite Inductors Ferrite Inductors and A L Values.
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