Question

Write down concept of Barkhausen conditions for sustained oscillations.

Answer 1

Barkhausen conditions for sustained oscillations The following condition called Barkhausen conditions should be satisfied for sustained oscillations in the oscillator

• The loop phase shift must be 0° or integral multiples of 2π. 
• The loop gain must be unity. |Aβ| = 1 Here; A → Voltage gain of the amplifier, b → feedback ratio; (fraction of the output that is fed back to the input)