So I'm trying to make the following simulation work properly to verify some hand solving for a circuit. The circuit is an LC tank with some diode clamping, and an initial capacitor voltage of -50V.
I tried both with and without a switch to see if that helped...it didn't.
Solving for this by hand I expected to see around 300A as the initial surge current, but it's up in the high kA range in the simulation. I know this can occur with LTSpice time base errors, but here's the stranger part
I had it working fine, then accidentally didn't save the changes. Now I can't make it work properly for some reason. I've tried:
- all the integration modes
- normal/alternate solver
- Taking the maximum timestep all the way down to 1E-12...took forever but it didn't help.
Nothing seems to make this simulation behave properly. Is there anything else I can try? I don't know why it isn't working now as opposed to earlier.