Teaching TN TRB EE Test Series Control Systems Controllers and Compensators Maximum Lead/Lag Frequency
The transfer function of a phase lead compensator is given by
\(D\left( s \right) = \frac{{3\left( {s + \frac{1}{{3T}}} \right)}}{{\left( {s + \frac{1}{T}} \right)}}\)
The frequency (in rad/sec), at which ∠D(jω) is maximum, is
1
\(\sqrt {\frac{3}{{{T^2}}}}\)
2
\(\sqrt {\frac{1}{{3{T^2}}}}\)
3
\(\sqrt {3T}\)
4
\(\sqrt {3{T^2}}\)