Electronics and Communication Engineering - Automatic Control Systems - Discussion

Discussion Forum : Automatic Control Systems - Section 4 (Q.No. 3)
3.
The gain margin for a stable system
has a positive decibel value
has a negative decibel value
has a large negative decibel value
none of the above
Answer: Option
Explanation:

For a stable system gain margin is positive. Therefore decibel value is also positive.

Discussion:
1 comments Page 1 of 1.

RISHI NIGAM said:   2 years ago
Gain margin and phase margin for stable sysytem is positive everytime and if we go by crossoverfrequencies then phase cross over frequency >gain cross over frequencies stable if reverse unstabble and if same marginnally stable.

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