For an RC phase shift oscillator, the following statements are cited: a) Amplifier gain is negative b) Phase shift introduced by the feedback circuit is either 0 or 360° c) Amplifier gain is positive d) Phase shift introduced by the feedback circuit is 180° Which of the following options is correct?

Only a) is correct and rest are incorrect
Only c) is correct and rest are incorrect
Both a) and d) are correct
Both b) and c) are correct

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Both a) and d) are correct

RC phase shift oscillator:

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RC phase shift oscillator as shown in the figure is used to invert the input for a 180° phase difference. Hence, the gain of the RC phase shift oscillator is negative. (Statement 1 is correct and 3 is incorrect)
The single R-C network gives the 60° phase shift. Hence the total phase shift provided by the feedback network is 180⁰. (Statement 2 is incorrect and 4 is correct)
In the RC phase shift oscillator, the inverting amplifier produces a 180° phase shift.
The RC Phase shift Oscillator: has a fixed frequency and is used at lower frequencies

4 views Answered 2022-09-04 04:29

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