Maybe an opamp could do it, but we'd need to see the kind of power it's expected to handle. But positive feedback (less than unity) could be used to increase impedance similar to the way an inductor works, but with capacitors. Still... that's a huge dynamic range.
John Woodgate wrote:
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In message<k1jfi6+3mtl@...>, dated Tue, 28 Aug 2012,
coldcolor0317<coldcolor0317@...> writes:
The inductance is also a frequency dependent component. Yes, I
understand if it'snot air-core, there are many other factors.But that's
what we want to achieve, to include the turn-to-turn capacitance,
turn-to-housing capacitance, and leakage resistance etc. I used other
EM software to compute the L, then trying to match it with an equation
variable freq), then connect with driving circuit.
I hope you succeed, but I don't think your approach is correct. In
saying that 'the inductance is frequency-dependent' I think you are
confusing measured values with the elements of the model. Also, you need
to be clear whether you are going to model losses as a parallel
resistor, a series resistor or both (or perhaps something more complex).
Inductors don't have anything normally called 'leakage resistance'.
If that wasn't enough, a practical inductor that has significant
impedance at 100 Hz will self-resonate well below 10 MHz unless you take
truly heroic constructional measures to control capacitance.
