State the Barkhausen criterion for sustained oscillation. Explain the

Question

State the Barkhausen criterion for sustained oscillation. Explain the operation of Colpitt Oscillator. For a Colpitt oscillator with 10 MHz frequency determine the equivalent capacitance, C forming tank circuit with 0.1 mH inductor.

23 Jan 2025

Answer :

Word Count : 282

The Barkhausen criterion for sustained oscillation states that for a circuit to oscillate, the total phase shift around the loop must be 0° or an integer multiple of 360°, and the magnitude of the loop gain must be at least 1. This condition ensures that the output signal maintains the same frequency and phase as the input, allowing for continuous oscillations.

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