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Q#1
Control System Design
GATE EE 2025
NAT
+2 marks
-0 marks
A controller 
of the form 
is to be designed for the plant 
as shown in the figure. The value of 
that yields a phase margin of 
at the gain cross-over frequency of 
is ___________ (round off to one decimal place).
Explanation:
Given: 
Gain cross-over frequency, 
.
Phase Margin at 
Open-loop Transfer function of system, OLTF 
…(i)
From equation (i), 
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