Description : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Answer : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Description : The effect of a finite gain of an operational amplifier used in an integrator is that (A) it would not integrate (B) the slope of the output will vary with time (C) the final value of the output voltage will reduce (D) there will be instability in the circuit

Answer : The effect of a finite gain of an operational amplifier used in an integrator is that there will be instability in the circuit

Description : Define stability. Sketch the root locations in the s-plane for stable and unstable system.

Answer : Stability: The system is said to be stable if it produces bounded output for a bounded input. It is used to define usefulness of the system. The stability implies that the system performance should not ... absence of the input, output may not return to zero it shows certain output without input.