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In an oscillator if phase of feedback is same as that of oscillation waveform then feedback is called ___________

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In an oscillator if phase of feedback is same as that of oscillation waveform then feedback is called ___________

(a) Positive feedback

(b) Negative feedback

(c) Cannot be predicted

(d) Either positive or negative depending upon frequency

The question was posed to me in an interview for job.

My question is taken from Introduction to Oscillator in section Oscillators of Analog Circuits

1 Answer

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Correct choice is (a) Positive feedback

Explanation: In an oscillator if phase of feedback is same as that of oscillation waveform then feedback is called positive feedback.

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