courtesyandgoodwill
New Member
Hello everyone, I'm having trouble building a quadrature oscillator. The two circuits I have tried building are the quadrature oscillator from this article -
https://www.electro-tech-online.com/custompdfs/2009/01/aug_07.pdf
and this one
Quadrature Oscillator Circuit - www.ECELab.com
I can't get either of them to oscillate - instead the outputs of the op-amps are all at ground. I have tried using 741's and a TL082 and no luck with either. Does anyone have any advice and/or know how I could debug the circuits?
any help would be much appreciated
Philip
https://www.electro-tech-online.com/custompdfs/2009/01/aug_07.pdf
and this one
Quadrature Oscillator Circuit - www.ECELab.com
I can't get either of them to oscillate - instead the outputs of the op-amps are all at ground. I have tried using 741's and a TL082 and no luck with either. Does anyone have any advice and/or know how I could debug the circuits?
any help would be much appreciated
Philip