The circuit has both square-wave and triangle-wave output. The left section is similar in function to a comparator circuit that uses positive feedback for hysteresis. The inverting input is biased at one-half the Vcc voltage by resistor R4 and R5. The output is fed back to the non-inverting input of the first stage to control [...]
In sometimes when want to decrease especial frequency noise that want only. This circuit can help you , it does will not let 60HZ frequencies s can change. Then decrease the noise. By use the integrated circuit , 741 numbers highly popular , economize and don’t seek buy easy with , if , friends , [...]
Unlike a Wien-bridge oscillator, the phase-shift oscillator in Fig 1 starts up quickly. Also, the circuit does not require that you adjust several trimming resistors just to tune the oscillator to a given frequency. Experiments show that the circuit’s total harmonic distortion (THD) measures approximately 0.5% or less.
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