Other Parts Discussed in Thread: TINA-TI
Hi,
I try to simulate a circuit that takes 270VDC input to create 10V and 5V ouputs using a flyback converter topology. My TINA-TI simulation using UC1825 run to Convergence Problem, and I am looking for recommendation to fix it.
Something that I tried:
1. When I removed the problematic component indicating in the Convergence problem, then it ran to the same issue on another component. I can't pin point what components cause the issue.
2. Changed the Analysis Parameter, Shunt Conductance to 1ms. However, the simulation result is completely off. The OUTA/OUTB of the UC1825 is not in expected PWM form but DC signal.
3. Changed the Analysis Parameter, Shunt Conductance to 1p. I ran to the Convergence Issue again.
I hope to take this discussion offline if possible.
Thanks,