I want to model the inductor saturation in LT SPICE, however, I do not know how to play the arbitrary inductor definition flux in my model. I have upload my model files, I hope anyone who know this can tell me how to model it.

The saturation inductor in my model is L5, I used a current control voltage source to get the current flow through the inductor, and the flux=94uH*5*tanh(V(IND_I)*(1/5)), However, I found the results are not right, I think I made some mistakes to define the inductor, Could anyone tell me what I can do to fix this design? Thanks!


Guangyao