http://digital.ni.com/public.nsf/allkb/4B99B2CD6C0C3B6A86257205005D58E0

Error: Time Step Too Small in Multisim

 

Primary Software: Electronics Workbench>>MultisimPrimary Software Version: 9.xPrimary Software Fixed Version: N/ASecondary Software: N/A

Problem: I receive the following error: Time Step Too Small Error.  How do I fix this error?Solution: The Time Step Too Small Error in Multisim is a very generic error that can represent a number of different simulation issues.In smaller circuits this error is generally due to a mistake in wiring or connecting components, so this must be checked first. If the wiring has been validated in the circuit follow these steps:

Select Simulation » Interactive Simulation SettingsUnder Initial conditions select Set to zeroClick the OK button

Check to see if the simulation now works. If not:

Select Simulation » Interactive Simulation SettingsCheck Set maximum time step (TMAX)Select Maximum Time Step (TMAX) and change it from 1e-005 to 1e-003Click the OK button

Check to see if the simulation now works. If not:

Select Simulation » Interactive Simulation SettingsSelect the Analysis Options tabSelect the Use Custom Setting radio button and click on the Customize buttonSelect the Global tabCheck the Relative Error Tolerance [RELTOL] to ON and set it to 0.01Set Shunt resistance from analog nodes to ground [RSHUNT] to 1e+9Select the Transient tabCheck Integration Method [METHOD] to ON and set it to GearClick the OK buttonClick the OK button

In Multisim 10 and higher the Convergence Assistant conveniently tries to fix this error for you.

转载于:https://www.cnblogs.com/shangdawei/p/3288992.html