Producing low-distortion sine waves, this oscillator operates over the range 16 to 22000 Hz.
The circuit is based on two articles that have appeared earlier in Wireless World - Roger Rosens’ “Phase -Shifting Oscillator”, February 1982 pp. 38-41, and J. L. Linsley Hood’s “Wien-Bridge Oscillator with low harmonic distortion” from May 1981 pp. 51-53.
This design features [...]
Here is Circuit classic Wien Bridge oscillator using an Op-Amp covering a frequency range of 15 to 150kHz in four switched steps.
Two conditions exist for a sinusoidal oscillator. Regenerative or positive feedback, and a closed loop gain of unity. The losses in the wien feedback circuit, are such that the open loop gain of the [...]
I introduce the oscillator which outputs the Sine wave and the Cosine wave at the same time using the operational amplifier. Because the distortion was big at the circuit to have been introducing before, I improved at the circuit with little distortion. The circuit this time combines the integration circuit and the inverter by the [...]
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