engineering recuitment UPPSC AE Mock Test 2024 Analog Electronics Oscillators and Feedback Amplifier Oscillator Basics
According to Barkhausen criterion in positive feedback amplifier, which of the following conditions must be met in order to get continuous undamped output from the circuit?
(where αv represents feedback factor and Av denotes voltage gain)
1
αv Av = ∞
2
αv Av < 1
3
αv Av > 1
4
αv Av = 1