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OP AMP acting strange. HELP!

Hi!

My third OP AMP is acting very strangely, after a while I get somehow decreased output signal.

What is causing it?

 

Please help, my deadline is in two days - this is part of my bachelor thesis and I just cant make it work.

 

Thank you

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I d o not have Multisim so I cannot look at your file.

 

Do you think the problem is with the simulation or the design of the circuit? If you think it may be the circuit, please post an image of the schematic (.png) and a description of what it should do and what it appears to actaully do.

 

Lynn

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Hi,

 

I have run the simulation and everything looks good to me.

I have also taken the last stage of amplifier in a separate simulation and the results look good.


Can you make printscreens and explain what behavior you see and what behavior do you expect?

 

Best regards,
IR

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