1
GATE ECE 2000
Subjective
+5
-0
The block diagram of a feedback system is shown in Figure. GATE ECE 2000 Control Systems - Time Response Analysis Question 6 English 1 GATE ECE 2000 Control Systems - Time Response Analysis Question 6 English 2
(a) Find the closed loop transfer function.
(b) Find the minimum value of G for which the step response of the system would exhibit an overshoot, as shown in Figure.
(c) For G equal to twice this minimum value, find the time period T indicated in Figure.
2
GATE ECE 1997
Subjective
+5
-0
Following fig. shows the block diagram representation of control system. The system in block A has an impulse response h(t ) = e−t u(t ). The system in block B has an impulse response h(t ) = e−2t u(t ). The block 'K' amplifies its inputs by a factor k. For the overall system with input x(t) and output y(t). GATE ECE 1997 Control Systems - Time Response Analysis Question 7 English (a) Find the transfer function $$\frac{y\left(s\right)}{x\left(s\right)}$$ when k =1.
(b) Find the impulse response when k = 0.
(c) Find the values of k for which the system becomes unstable.
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