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Concept
Phase Crossover Frequency
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Concept
Gain Margin
Gain Margin
is a measure of the stability of a
control system
, representing the amount by which the
system gain
can be increased before it
becomes unstable
. It provides insight into the
robustness of the system
against
gain variations
and is typically evaluated at the
phase crossover frequency
where the
phase angle
is
-180 degrees
.
3