From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.

We appreciate your patience as we improve our online experience.

Multisim and Ultiboard

cancel
Showing results for 
Search instead for 
Did you mean: 

Transient analys cuts off at .45 sec

Solved!
Go to solution

My transient analysis stops at .45 seconds, and I can't get it to go beyond that.  I have my TSTOP set to someting beyond that (1sec, 2 sec, etc), I have used a variety of TSTEP and TMAX values along with the automatic ones, and I have set the max number of points to 1280000000.  

 

Is there some other setting I am not finding under the transient setup?

 

Joe

0 Kudos
Message 1 of 4
(4,768 Views)

Also, this is using Multisim 14.0...

0 Kudos
Message 2 of 4
(4,767 Views)

I am also getting the error "Transient time point calculation did not converge"

 

I have attached the schematic.  If I remove C5 & C6, it simulates as long as I want. The capacitors seem to be causing the error. 

 

Any help is appreciated!

0 Kudos
Message 3 of 4
(4,730 Views)
Solution
Accepted by topic author Joe1123

Alright, good talk...I ultimately used the SPICE troubleshooting guide off intusoft.com, and relaxed the GMIN.  It seems kind of like a band-aid fix, but at least it simulates now.

 

 

0 Kudos
Message 4 of 4
(4,700 Views)