LTspice Inductor current not symetrical around zero

[Faringdon]

Hi,
I am pulsing +5v/-5v across an inductor, both saturable, and fixed, but my current is not symetrical around zero.
Do you know why not?

[Ian.M]

The .tran startup option has no effect as you have no DC sources.

Your source does not have a symmetrical waveform^* - fix it! 

.tran uic forces all inductor currents to start from zero.  Therefore if you don't want a startup transient you must start the waveform at a point in the cycle where the inductor current would be zero (after many cycles).

Try:

Code: [Select]

PULSE(-5 5 25u 100n 100n {50u-100n} 100u)
* See my comments here: https://www.eevblog.com/forum/projects/where-is-my-error-in-this-ltspice-simulation/