Find the phase and gain margins for the following feedback system R(s) + The Bode plot of Magnitude (dB) Phase (deg) 20 0 -20 -40 -60 0 -90 -180 -270 102 s³+2s2+2.2s+0.2 1 s³+2s²+2.2s+0.2 Bode Diagram 10-1 Frequency (rad/sec) 10⁰ Y(s) is 10¹ Select from (a) Gain Margin: 4.2, Phase Margin: 73.8° (b) Gain Margin: 0.24, Phase Margin: 73.8° (c) Gain Margin: 4.2, Phase Margin: -73.8° (d) Gain Margin: 0.24, Phase Margin: -73.8° (e) None of the above/Not nominally stable

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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Find the phase and gain margins for the
following feedback system
R(s)
The Bode plot of
Magnitude (dB)
Phase (deg)
20
-20
-40
-60
0
-90
-180
-270
10-²
-1
10
1
s3+2s²+2.2s+0.2
1
s³+2s²+2.2s+0.2
Bode Diagram
10⁰
Y(s)
Frequency (rad/sec)
is
10¹
Select from
(a) Gain Margin: 4.2, Phase Margin: 73.8°
(b) Gain Margin: 0.24, Phase Margin: 73.8°
(c) Gain Margin: 4.2, Phase Margin: -73.8°
(d) Gain Margin: 0.24, Phase Margin: -73.8°
(e) None of the above/Not nominally stable
Transcribed Image Text:Find the phase and gain margins for the following feedback system R(s) The Bode plot of Magnitude (dB) Phase (deg) 20 -20 -40 -60 0 -90 -180 -270 10-² -1 10 1 s3+2s²+2.2s+0.2 1 s³+2s²+2.2s+0.2 Bode Diagram 10⁰ Y(s) Frequency (rad/sec) is 10¹ Select from (a) Gain Margin: 4.2, Phase Margin: 73.8° (b) Gain Margin: 0.24, Phase Margin: 73.8° (c) Gain Margin: 4.2, Phase Margin: -73.8° (d) Gain Margin: 0.24, Phase Margin: -73.8° (e) None of the above/Not nominally stable
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