Electronics and Communication Engineering - Analog Electronics - Discussion

Discussion Forum : Analog Electronics - Section 1 (Q.No. 18)
18.
For a system to work, as oscillator the total phase shift of the loop gain must be equal to
90°
45°
270°
360°
Answer: Option
Explanation:

Gain of system with + ve feedback = for oscillation

but V0 ≠ 0

so, that 1 - AB = 0 AB = 1 ∠0° or 360°.

Discussion:
2 comments Page 1 of 1.

Sweety said:   6 years ago
The oscillator output signal undergoes a total phase shift of 360 or 0 degrees according to the Barkhausen criterion.

Nimi said:   10 years ago
I need more explanation?

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