Intro + question

Thread Starter


Joined Feb 22, 2005
Hello to you all,

I have discovered this forum just today, and decided to register as it looks interesting. Although we are all involved in electronics designs and know the basics, our subject is a difficult science (!!!), and such web site are very useful !!

oh, I am vincent and live in UK.

Then, this would be my first topic.

I am working on SPICE models for transformers (mutual inductances).

I have taken over the work of a former colleague and am basically struggling...:

In the model of the transformer I have, are many variables I am not too sure to understand:

it says:

Ideal tranformer.
0.25 uH.
PP=0.99, SS=0.99, PS=0.01
P=1, S=1, S1=2.

The things I would like to discuss with you guys are not these values particulary, but the actual definitions of the variables.

it appears to me that PS may be the coupling factor, 0.25 may be the self inductance of the coil...but...?

I hope we will clear that up....?!