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Control system miscellaneous
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Control system miscellaneous
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Control System
Control system miscellaneous
The Bode magnitude plot of H(jω) =
10
4
(1 + jω)
is
(10 + jω)(100 + jω)
2
Correct Option:
A
H(jω) =
10
4
(1 + jω)
(10 + jω)(100 + jω)
2
=
10
4
(1 + s)
10
1 +
s
(100)
2
1 +
s
2
10
200
=
0.1 (1 + s)
1 +
s
1 +
s
2
10
200
∴ Value of K = + 20 log10 (0.1)
= – 20 db.
So plot will start from – 20 db ft.
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