> Here's the setup in LTspice. Unfortunately my ancient version does not se=
em to
> support signed calculations for the current via parameters, or I do not k=
now how
> to use that feature, so it uses two current sensing sources and two switc=
hes. An
> advantage is that one can simulate all sorts of interesting situations, s=
uch as
> a flux gate magnetometer measuring the Earth field by setting the saturat=
ion
> currents for the two semiperiods to different values.
>
> =A0http://omploader.org/vNHg0cg

That seams to work really well! I also found another reference that
can model nonlinear inductance in SPICE. In case you're interested:

http://www.beigebag.com/case_nonlinear_ind.htm

-- =

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