M
Michael Robinson
- Jan 1, 1970
- 0
I'm trying to find the quickest way to account for saturation of a
transformer in LTSpice.
The reason I need to include saturation in the model is because it's a
blocking oscillator.
There's a nonlinear transformer model in the library at the yahoo group (the
Chen model), but it includes a couple of parameters related to the
hysteresis loop.
I don't know what I would use for the hysteresis parameters and would like
not to have to use those extra parameters, if at all possible. No B-H loop,
just a transformer that can saturate, but has no hysteresis.
There's an "arbitrary inductor" model that takes saturation into account
while ignoring hysteresis. If I could use this model in a transformer by
simply coupling two inductors it would make my life easy, because I have the
volt-seconds figure for the trafo I intend to use.
This wiki shows the inductor model:
http://ltwiki.org/index.php5?title=The_Arbitrary_Inductor_model
So I tried putting two arbitrary inductors in my schematic and coupling
them. LTSpice tells me I can't use coupling with arbitrary inductors. Same
result when I try to couple an arbitrary inductor with an ideal inductor.
So I'm still at square one. Do I have to use the Chen model, or is there an
easier way to do this?
transformer in LTSpice.
The reason I need to include saturation in the model is because it's a
blocking oscillator.
There's a nonlinear transformer model in the library at the yahoo group (the
Chen model), but it includes a couple of parameters related to the
hysteresis loop.
I don't know what I would use for the hysteresis parameters and would like
not to have to use those extra parameters, if at all possible. No B-H loop,
just a transformer that can saturate, but has no hysteresis.
There's an "arbitrary inductor" model that takes saturation into account
while ignoring hysteresis. If I could use this model in a transformer by
simply coupling two inductors it would make my life easy, because I have the
volt-seconds figure for the trafo I intend to use.
This wiki shows the inductor model:
http://ltwiki.org/index.php5?title=The_Arbitrary_Inductor_model
So I tried putting two arbitrary inductors in my schematic and coupling
them. LTSpice tells me I can't use coupling with arbitrary inductors. Same
result when I try to couple an arbitrary inductor with an ideal inductor.
So I'm still at square one. Do I have to use the Chen model, or is there an
easier way to do this?