One condition for oscillation is_____________?
Correct answer: C. A phase shift around the feedback loop of 0o
- A. A phase shift around the feedback loop of 180o
- B. A gain around the feedback loop of one-third
- C. A phase shift around the feedback loop of 0o
- D. A gain around the feedback loop of less than 1
Explanation
The Barkhausen phase condition requires the net phase shift around the feedback loop to be 0° or an integral multiple of 360°. The loop gain must also be unity for sustained oscillation, but option c states the phase condition.
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