Thank you! I have seen those websites, and I tried the many ways to figure out the inductor model, however, error was observed when the simulation was running, I think my problem is how to define the nonlinear inductor in LT SPICE, I can not find any example from the website, some are just part of the model, so I do not know how to put them in my model, sorry for not understanding LT spice well, I am a new guy for LT spice, Could anyone who know this nonlinear inductor in LT spice tell me how to make a correct model in LT spice?