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(Solved): A. With the help of frequency response curve, define Barkhausen's criteria for (i) stability (ii) in ...



A. With the help of frequency response curve, define Barkhausen's criteria for (i) stability (ii) instability and (iii) Oscillations. (2 Marks) B. Derive the design expressions for an RC phase shift oscillator. (3 Marks) The circuit shown in the figure below is a current source. Show that the amount of current delivered to the load is controlled by resistor R3. Also, calculate the resistance seen by the Load. (5 Marks) Fig. 5 Design a circuit to get a voltage transfer characteristics as shown in the figure below. Assume input voltage as 2sin(314t). (5 Marks) Fig. 7 Page 3 of 3


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