[TCML] inductance changing with frequency

[DC Cox <resonance@xxxxxxxxxxxx>]

Someone was looking for equations . . . . . . ?

One must understand the relationship between counter emf  to applied
current, which in reality is the origin of the concept of inductance.

If you research Faradays law the explanation will begin to make sense and
will lead to Maxwell’s equations which will give the rest of the
explanation.

I know many people out there do not believe that current amplitude has no
bearing on it, but in reality it does.

Some experimenters think only frequency determines inductance, and in most
cases that is true, however when trying to do zero cross over on inductive
loads the current amplitude must be considered because the of many
things…especially in gate drive circuits where the actual drive signal is a
square wave…and a square wave is made of all the odd harmonics ( different
frequencies again).

It plays a part especially in heating, and dynamic Q factors.  and Q is tied
directly to inductance by classic equations.

Dr. Resonance
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