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The help DOES tell. Look for Chan Model; that will get you close. Jim Wagner

That DOES NOT work, just like it does not work for caps. Jim Wagner

You run into the same issue as time varying capacitance; you cannot just change inductance with time. How to handle it is in Help, though very obscure. I thought that I had seen it in an older

To clarify I use equation L(t) = L_start + (L_end - L_start) * (t / T). L=inductance L_start=start inductance L_end=end inductance t=sim time T=sim time length

I've tried to sweep inductance in my sim. I give value for inductor {Lsweep} and put directive .param Lsweep (1u+(200u-1u)*({time}/1m)) on the schematic, but it don't work?

Thanks guys. So, how can I start to simulate cores in LTspice? Is there a way or should I not bother?

I rather doubt it.? Gemini seems to have gotten it wrong again (no surprise!) because none of that is documented syntax for LTspice.? Although there is some syntax that LTspice accepts that is

Only if you understand what is going on. Given that most LTspice simulations involve creatin a graphical schematic rather than a text based netlist I'm surprised it came up with an approach that is so

Hello everybody, I have the need now to simulate ferromagnetic cores. I thought about it and don't recall info in the help file so, I asked google's Gemini AI "Proper method to model a ferromagnetic

If you are interested in seeing the VCO drift across a range of frequencies, take your simulation and shove an FM tone into the PLL reference port and then observe the varactor voltage. Make sure your

Usually this refers to: Proportional Integral Derivative With variations using one or more of the three. Although these days calling something a PI controller could refer to a Raspberry Pi so it is

Have you ever done any simulations in LTspice? Do you have a schematic of the circuit in question? That would be a good first step in the process, in that it would show: 1. You're not expecting

What is P controller? What is VS PI controller? Do they both describe the error amplifier / loop filter?? Sorry about my lack of understanding.? Do they refer to the type or order of the filer? Andy

Hello Andy the purpose of shown screen shot is to see help you visualise my thought so I'll be more clear. Also i will only post in the TEMP folder. I want to see a simulate a system with P controller

I do mean that seriously.? How to get W/L on the X-axis depends on how you run the simulation.? If you used a .STEP command, it might plot that way automatically.? Or, you might need to right-click

That depends on how you do the simulation. .STEP command?

Tell me how?

Yes.

I want the gm to be at y-axis & W/L in x-axis... Is this possible in ltspice?

You can .STEP both W and L, or a separate parameter equal to their ratio W/L. Do you know how to simulate transconductance, gm? Andy