Quadrature oscillator

212

03:08:41

O/p of opamp first is sine wave and o/p of opamp second is cosine ,as name implies quadrature is out of phase .in this way we can generate sine and cosine waves . For simplicity i have taken all R AND C equal and freq. Of oscillation i given by f=1/2pieRC at single frequency .the first opamp is acting non-inver. Integrator and second opamp is acting as inverting opamp.I have also connected one ac input ,practically noise is enough to create disturbance to create oscillations.

published 12 years ago

UncleRick

12 years ago

Very nice, Sam, very nice.

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