Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 8 (Q.No. 3)
3.
The open loop transfer function of a unity feedback control system is given as The phase cross over frequency and the gain margin are respectively.
and
and
and
and
Answer: Option
Explanation:

At phase cross over frequency

-90° - tan- 1 ωT1 - tan- 1 ωcT2 = - p

= 90°

GM = 1/a where a = | G()|ω=ωc

.

Discussion:
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