1
GATE ECE 2001
Subjective
+5
-0
A feedback control system is shown in figure GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English (a) Draw the signal-flow graph that represents the system.
(b) Find the total number of loops in the graph and determine the loop-gains of all the loops.
(c) Find the number of all possible combination of non-touching loops taken two at a time.
(d) Determine the transfer function of the system using the signal-flow graph.
2
GATE ECE 1998
Subjective
+5
-0
Draw a signal flow graph for the following set of algebraic equations: $$$\begin{array}{l}y_2=ay_1-\;gy_3\\y_3=ey_2+\;cy_4\\y_4=by_2-dy_4\end{array}$$$ Hence, find the gains $$\frac{y_2}{y_1}$$ and $$\frac{y_3}{y_1}$$.
3
GATE ECE 1994
Subjective
+5
-0
Reduce the signal flow graph shown in fig. below, to obtain another graph which does not contain the node e5.Also, remove any self-loop from the resulting graph. GATE ECE 1994 Control Systems - Signal Flow Graph and Block Diagram Question 2 English
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