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Numerical - Nyquist plot for a given gain margin of f/b system
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Q. Consider a feedback system with gain margin of about 30. At what point does Nyquist plot crosses negative real axis?
- Published on 09 Oct 15
a.
-3
b.
-0.3
c.
-30
d.
-0.03
ANSWER: -0.3
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Discussion
prashant
-Posted on 29 Aug 16
it should be -.03 as 20log(1/.03)=30db
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