Hi,
Apologies if this is the wrong place, trying to be helpful and report a recurrent bug, created this account and happy to be pointed to best way to do so.
Using LT spice to simulate a high voltage PSU made of several HF HV AC voltage generators feeding voltage multipliers in parallel, I wanted to simulate the various modules being unsynchronised and non identical.
I could get a solution if all were same frequency and adjusted a fixed phase.\
When I tried different frequencies between them (nominal 10Khz, had small differences of say 10 or 100Hz or bigger say 5kHz) simulation sometimes worked (got expected lf beating with a few with small frequency difference) but tended to close program after a while, sometimes ran very slowly with messages with increasing defcon messages at one point got a fatal error alert saying this is a program fault please report it, so I am trying.
Circuits weren't complex, just a few voltage sources feeding a few stages of voltage multiplier, didn't deliberately try ill-conditioned frequency multiples or phase shifts, problem started pretty quickly with only few supplies of different frequency. Was using just a sine wave source and tried to run simulation for say 10msec with 10kHz source to give time to stabilise.
Can get a vaguely useful result by assuming all are same frequency and adding random phase offsets manually but was curious to see different frequency effects (like beating, likely magnitude)
