Request help with proteus

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enjoykilian

Joined May 15, 2021
79
hello my proteus is doing weird

iam trying to create an oscillator with proteus and i started with making this circuit from google 1662924187971.png
in proteus 1662924210271.png
but in ac mode (oscilloscope) the signals a,b,c goes to 0
1662924508922.png
in dc mode i get this
1662924536705.png
can you help me
 

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bertus

Joined Apr 5, 2008
22,092
Hello,

Are Vcc and Vee defined for your simulation?
They must be between 5 and 20 Volts.
If the supply voltage are lower that 5 Volts, there will be no output swing possible:
LM741_intersil_output_swing.png

Bertus
 
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