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I’m trying to run a simulation of a power amplifier in MultiSim 11 but I’m not getting. Could someone please help me?
Attached is the file MultSim 11.
I am very grateful to anyone who can help me.Hi,
cool project. Are you sure that all wirings are ok? is there a reference document for this project?
anyway I think to know what’s wrong with your project, you ‘ve connected the MJE340 and MJE350 emitters with pin 4 and pin 7 of TL071CP, but the SPICE model of TL071CP models only pin 1 2 3 4 5. Try to connect the emitters with pin 1 and 5.
Hello 4soBRutk12!
Thanks for your reply.
As a reference document see the attached file.
In fact, pinout TL071CP the datasheet does not match the pinout on the spice model.
However, if you build some simple circuits to test will confirm that the circuits work when mounted according to the datasheet and not as spice model.
See the attached file.you’re right about the pins. A question, the schematic you’ve uploaded is based on a working project or it’s simply a your test?
It is basede on a working project.
It’s amazing that I’m having difficulty to solve this problem. I posted on various vanilla2s and so far not managed to solve this problem. I’m thinking of changing simulator, even in the official vanilla2 of the Multisim (National Instruments) got no answer.upload the original schematic of the working project please
The schematic that I uploaded is the working project
your schematic looks more like a Kuroda amplifier than an Alexander amplifier and it seems that there’s nothing wrong. I’ve simulated with LTspice , with reliable spice models of MJL1302A, MJL3281A, MJE340, MJE350, BD139, BD140, TIP41C and TIP42C, and it works fine. Try to test the same models into Multisim.
I thank you for your help.
I’m trying to learn how to use the OrCAD and now I will also try to learn to use LTspice.
The models that you used already part of LTspice or I have to download them from the Internet? If I have to download them where you found them?No you don’t have to download, I’ve added them with SPICE directives
I did the simulation in Multisim with the TL071 model fitted with discrete components you posted.
The simulation work and the values measured in the actual circuit are quite close to the values provided by the simulation.
Attached is an image of the simulation.
excellent, the file seems to be a multisim12 file, can you convert it to a multisim 11?
I could not convert to version 11.
Attached is the complete circuit in pdf.
I posted the amplifier circuit in version 11, you only need to add the part of the TL071.
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