Phase Shift Oscillator Frequency. Ideally a simple rc network is expected to have an output which leads the input by 90 o. Phase shift oscillators are often used at audio frequency as audio oscillators.
Thus the achieved overall phase shift can be either 0 or 360. The phase shift oscillator circuit consists of a single transistor amplifier section and a rc phase shift network. And the phase shift introduced by the circuit must be equal to 0 or 360.
The output of the last stage is returned to the input of the amplifier.
It must have a maximum phase shift of more than 180 degrees at high frequencies so the phase shift at the desired oscillation frequency can be 180 degrees. The amplifier circuit generates a phase shift of 180. Phase shift oscillators are often used at audio frequency as audio oscillators. The output of the last stage is returned to the input of the amplifier.
