engineering recuitment ISRO Scientist Electronics Mock Test Control Systems Frequency Response Analysis Phase Crossover Frequency
The open loop transfer function of a unity negative feedback system isΒ \(\rm G(s)=\frac{k}{s(1+sT_1)(1+sT_2)}\),Β where π, π1 and π2 are positive constants. The phase crossover frequency, in rad/s, is
1
\(\rm \frac{1}{\sqrt{T_1T_2}}\)
2
\(\rm \frac{1}{{T_1T_2}}\)
3
\(\rm \frac{1}{T_1\sqrt{T_2}}\)
4
\(\rm \frac{1}{T_2\sqrt{T_1}}\)