Marks 1

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Which of the following statement is incorrect?
GATE ECE 2017 Set 2
Which of the following can be the pole-zero configuration of a phase-lag controller (lag compensator)?
GATE ECE 2017 Set 1
The transfer function of a first-order controller is given as $${G_c}(s) = {{K\left( {s + a} \right)} \over {s + b}}$$...
GATE ECE 2015 Set 3
The magnitude plot of a rational transfer function G(s), with real coefficient is shown in figure. Which of the followin...
GATE ECE 2009
The pole-zero plot given below corresponds to a ...
GATE ECE 2008
The transfer function of a phase-lead compensator is given by $${G_c}(s) = {{1 + 3Ts} \over {1 + Ts}}$$ where T > 0. T...
GATE ECE 2006
A PD controller is used to compensate a system. Compared to the uncompensated system, the compensated system has
GATE ECE 2003
The transfer function of a phase lead controller is $${\textstyle{{1 + 3Ts} \over {1 + Ts}}}.$$ The maximum value of ph...
GATE ECE 1998

Marks 2

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The position control of a DC servo-motor is given in the figure. The values of the parameters are Kt=1 N-m/A, Ra=$$1\Ome... GATE ECE 2015 Set 3 A lead compensator network includes a parallel combination of 'R' and 'C' in the feed-forward path. If the transfer func... GATE ECE 2015 Set 1 The transfer function of a compensator is given as$${G_C}(s) = {{s + a} \over {s + b}}.{G_C}(s)$$is a lead compe... GATE ECE 2012 The transfer function of a compensator is given as$${G_C}(s) = {{s + a} \over {s + b}}.$$The phase of the above lead... GATE ECE 2012 A unity negative feedback closed loop system has a plant with the transfer function$$G(s) = {1 \over {{s^2} + 2s + 2}}$... GATE ECE 2010 Group I gives two possible choices for the impedance Z in the diagram. The circuit elements in Z satisfy the condition$...
GATE ECE 2008
The open-loop transfer function of a plant is given as $$G(s) = {1 \over {{s^2} - 1}}.$$ If the plant is operated in a ...
GATE ECE 2007
A control system with a PD controller is shown in the figure. If the velocity error constant $${K_v} = 1000$$ and the d...
GATE ECE 2007
A double integrator plant, $$G(s) = {K \over {{s^2}}},H(s) = 1$$ is to be compensated to achieve the damping ratio $$\... GATE ECE 2005 A process with open-loop model$$G(s) = {{K{e^{ - s{\tau _d}}}} \over {\tau s + 1}},$$is controlled by a PID controlle... GATE ECE 1992 The transfer function of a simple RC network functioning as a controller is:$${G_c}(s) = {{s + {z_1}} \over {s + {p_1...
GATE ECE 1990

Marks 5

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A unity feedback system has the plant transfer function Gp(s)=$${1 \over {\left( {s + 1} \right)\left( {2s + 1} \right)}... GATE ECE 2002 For the feedback control system shown in the figure, the process transfer function is Gp(s) =$${1 \over {s(s + 1)}},...
GATE ECE 2001

Marks 8

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A system with derivative control is shown in figure. (a)Determine the transfer function and the characteristic equation...
GATE ECE 1987

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