IR2110 LTSpice Simulation Problem

[Reb20]

Hi,

I need to simulate an H-bridge using IR2110 with LTSpice but I keep getting:

"Time step too small; time = 3.21661e-005, timestep = 1.25e-019: trouble with u1:diode25-instance d:u1:_md5_d1"

I've searched and tried everything I could find to solve this but nothing worked.
What does the error mean?
I'll attach my schematic.



I'll appreciate any help. Thanks!

 

[BradtheRad]

I think it means your timestep is so short (in comparison to your simulated timeframe), that the computer will take forever to finish the run (almost forever).

Try a timestep which makes between 50 and 5000 steps per cycle of your switching frequency. This approach works when I run a simulation.

Your frequency appears to be 1k Hz. Therefore try a timestep of 1 uSec.