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Convergence issue related to parametric sweep

The above circuit works fine for me when running the simulation in Pspice until I try to run the simulation as a parametric sweep. Sweeping, for example, c9 results in convergence issues all over my circuit that are not present if I run the values as separate simulation runs. I am currently operating the circuit as an Hbridge with the four voltage controlled resistors operating as switches and the triggers are off screen circuits operating the resistors with tanh shaped pulses in the range of 50-100 nanoseconds pulse width. I can provide more information as needed. I have tried finding the values where the parametric sweep stops and confirmed they work as a single simulation. I am unsure why the parametric sweep sees issues that you would not see otherwise. Error message below:

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0 AyushD over 3 years ago

You can try below options :
Try reducing the accuracy of ABSTOL / VNTOL from OPTIONS in simulation settings

Increase the value of ITL4 from 10 to 50, also try changing RELTOL to a higher value

Try enabling SKIPBP option from simulation settings.
See if playing with these options work
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0 AyushD over 3 years ago

You can try below options :
Try reducing the accuracy of ABSTOL / VNTOL from OPTIONS in simulation settings

Increase the value of ITL4 from 10 to 50, also try changing RELTOL to a higher value

Try enabling SKIPBP option from simulation settings.
See if playing with these options work
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

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