Multisim and Ultiboard

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Simulate just a simple LM324 circuit but the result is incorrect

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Hi guys,

 

I have a problem with LM324 simulation.

 

Here is my circuit:

 

circuit.png

 

 

I simulated it but the output of the opamp was just a DC signal which is theoretically incorrect.

 

oscilloscope.png

 

Pls help me to find out where the problem is.

 

Thank you.

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Solution
Accepted by topic author Sasuke

Check up connections of power supplies with the GND.

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@supsup wrote:

Check up connections of power supplies with the GND.


Thank you for your answer. The +12V power supply was not connected to GND causing the incorrect result.

 

regards,

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