Question

in a phase shift oscillator, the phase shift determines oscillator frequency. what does rate of change of phase determine?

Answer 1

The feedback network 'shifts' the phase of the amplifier output by 180 degrees at the oscillation frequency to give positive feedback. Phase-shift oscillators are often used at audio frequency as audio oscillators. The filter produces a phase shift that increases with frequency.

Answer 2

A phase-shift oscillator is a linear electronic oscillator circuit that produces a sine waveoutput. It consists of an inverting amplifier element such as a transistor or op amp with its output fed back to its input through a phase-shift network consisting of resistors and capacitors in a ladder network. The feedback network 'shifts' the phase of the amplifier output by 180 degrees at the oscillation frequency to give positive feedback. Phase-shift oscillators are often used at audio frequency as audio oscillators

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