do Analyses: TRAN: Timestep too small; initial timepoint: trouble with 1n4007-instance d1
run simulation(s) aborted
How do I solve this issue in KiCAD I try all methods but I can’t solve the issue.
some help me through it .
Hmmm…
I don’t think that closing this thread is a good idea.
In the other thread we have learned that the timestep error may have so many causes, which then may be project specific. So a new thread per project is o.k. in my view.
Of course it may happen that the root cause is not KiCad/ngspice specific, but due to bad circuit design. But lets find out!
Back to the circuit as drawn:
I don’t see any ngspice voltage sources.
There is the node PHASE_U connected to nothing.
The model for UCC21520 has only 4 connections (1=1 to 4=4)? What about the proper pin sequence?
Are there other sheets in this project?
To move on, please post the complete project (including all models used).
You may need to scale down the project, e.g. running only the UCC21520, but then with all supplies needed. Only when this is o.k., add other parts of the circuit.
I cant upload the full project as I am a new user
hopefully I solved the error very thanks to all of you!!!