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Wien-bridge oscillator help

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pX

Golden Member
Alright, I guess this is a PSPICE question. I am nearly positive I have this thing designed right, to operate at 2kHz, my lab instructor said this design worked. But I cannot get it to work in pspice at all. can anyone tell me what I have did wrong?

here is the circuit plus a kinda blurry screenshot of the output, notice that is uV youre seeing there.

here
 
Try adding an initial condition of 1 at the inverting input. My friend recently had this same circuit as her project. She had to kick start it with an initial condition. Search for IC in the part list and stick it in the inverting (-) input... hope this helps..

..i'm doing pspice, as well.. i'm stuck with trying to figure out how to get Pspice to calculate my high cut off frequency.
 
THANKS MAN!!!!

I put .1V on the inverting and there it goes, 2khz sine wave. Sweet. I can't wait to tell me lab instructor, he was telling me i "obviously had something wired wrong".
 
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