Control Systems
1
GATE ECE 1992
Subjective
+8
-0
A unity feedback system has open-loop transfer function
$$G(s) = {1 \over {s\left( {2s + 1} \right)\left( {s + 1} \right)}}$$
Sketch Nyquist plot for the system and there from obtain the gain margin and the phase margin.
2
GATE ECE 1987
Subjective
+8
-0
The magnitude plot of the open loop transfer function G(s), of a certain system is given in fig,
(b) Estimate the phase at each of the corner frequencies.
(a) Determine G(s), if it is known that the system is of minimum phase type.
(b) Estimate the phase at each of the corner frequencies.
Questions Asked from Marks 8
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics