At 20.52 2011.11.12, you wrote:
>On 12/11/2011 19:09, Electron wrote:
>> Thank You.
>>
>> A question, if You don't mind: I always used LTSpice "graphically". It's
>> easy to create two inductors. Now, how do I enter the coupling factor?
>
>On the far right of the LTSpice toolbar there is an icon (the ".op" one)=20
>for creating a SPICE directive. CLick on this and add Kn Ln Ln Kf, where=20
>n is the number of your components and Kf is the coupling factor.
>Example:
>You have two inductors, L1 and L2. You want to couple them with a factor=20
>of 0.9, so you click on the .op icon and write:
>K1 L1 L2 0.9 (K could be any number, e.g K2, K3, etc depending on how=20
>many couplings you have in your circuit)
>Place the directive on the schematic somewhere and you're done.

It worked wonders, thank you! :-)

But what does coupling=3D0.9 imply? 90% efficiency for the resulting transf=
ormer?

Thanks,
Mario

--=20
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