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Astable multibrator Square wave generator using Op-Amp 741 and Multisim

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micropar

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Problem Statement: Design astable mulitvibrator using op-amp IC 741 for frequency 1 KHz.and peak to peak voltage of 10V and duty cycle less than 50%. Plot its output response and compare with theoretical response.

Attached circuit diagram and file of multisim. What to do to see output on virtual DSO of Multisim?


<a title="Sq_Wave_Gen_with_741_on_Multisim.png" href="http://obrazki.elektroda.pl/4493658000_1444567474.png"><img src="http://obrazki.elektroda.pl/4493658000_1444567474_thumb.jpg" alt="Sq_Wave_Gen_with_741_on_Multisim.png" /></a>
https://obrazki.elektroda.pl/4493658000_1444567474.png
 

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  • Design1.zip
    1 MB · Views: 61

Hi,

I expect the opamp output as a flat line at 0V +/- 0.5V.

Please review both opamp inputs.

Klaus
 

Yes, as Klaus noted, your circuit won't work as shown.
If you understood how the circuit worked, you would realize that.
 

Hi All,

Thanks for help and support. I was also able to solve the circuit problem. Just interchange the Op-Amp + and - input terminal and it works.

Regards,
--micropar--
 

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