Problem with Multisim Transient Analysis TSTOP
Reference the attached PDF. Page 1 is the circuit. Page 2 is the transient simulation using nothing but default settings (TSTOP=1ms). Not convinced that the result is correct but that is not the issue. At least the result is within the range expected and the circuit is oscillating. Page 3 is the same transient simulation with TSTOP = 100u. Page 3 is with TSTOP=10u.
This is a circuit I simulated with good results in PSpice yesterday. I'm a long time (20yr) pspice user who is converting over to Multisim. I have been playing with this circuit for many hours, changing options, playing with initial conditions, applying a current pulse to the inductor to start the simulation. I get a wide variety of outputs, some in the kV range. After much effort it seems to be related to the TSTOP and TMAX settings. If I alter either of these settings from the defaults I get results outside the power supply rails. I have also tried changing TSTEP, changing initial conditions. Everything I do keeps the results the same or makes it worse.
Suggestions?
Attachments:
Transient Simulations.pdf 498 KB
Hi EDL,
If you are getting a large result a KV output you maybe using a three pin opamp model, use a five pin model instead.
http://digital.ni.com/public.nsf/allkb/50638645C2D0D363862571B900646F6E
I built the oscillation circuit and I added a pulse to kick start it, please have a look at it.
Tien P.
National Instruments
Attachments:
Oscillator.ms12 429 KB
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Problem with Pole zero analysis using multisim
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Attached:
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LPFonly.ms10
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CompleteCircuit.ms10 449 KB
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Attachments:
Aufgabe a.ms13 204 KBHello Turasis,
I've changed something (don't know what) now it works
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