[Multisim] Transient time point calculation did not converge

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SUMMARY

The forum discussion centers on a transient analysis issue encountered in Multisim, where the error "Transient time point calculation did not converge" was reported. The user attempted various operational amplifier models without success. The resolution involved correctly connecting the power supplies to the operational amplifier, which stabilized the circuit and allowed for successful simulation. This highlights the importance of proper component connections in circuit simulations.

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  • Understanding of Multisim software for circuit simulation
  • Basic knowledge of operational amplifier configurations
  • Familiarity with transient analysis in SPICE simulations
  • Ability to troubleshoot circuit connections and configurations
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  • Explore Multisim transient analysis features and settings
  • Learn about operational amplifier power supply requirements
  • Investigate common errors in SPICE simulations and their resolutions
  • Study techniques for ensuring stable DC operating points in circuits
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Electronics engineers, circuit designers, and students working with Multisim who are troubleshooting simulation errors and improving circuit stability.

etf
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Hi. I have problem simulating this circuit in Multisim:

(LTSpice)

2cwms6h.png


Here is scheme from Multisim:

2nhkwvp.png


When I run transient analysis, I got this:
------ Checking SPICE netlist for Design3 - Saturday, September 26, 2015, 10:58:03 AM ------
======= SPICE Netlist check completed, 0 error(s), 0 warning(s) =======
Transient time point calculation did not converge
Simulation canceled
Any idea what's wrong? Thanks in advance
 
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I tried different models of opamp and I got same error. Here is my version of software:

2n8detf.jpg
 
cut v4 and v1 in half or set to 0 just to see what happens. Add a 10k to ground on the output to see what happens.

Do you get a stable dc operating point?

Have you tried AC analysis?
 
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Solved, I didn't connect power supplies to op amp correctly :)
 

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