Consider the transfer function \({G_e}\left( s \right) = k\frac{{1 + Ts}}{{1 + \alpha Ts}}\)
It provides a maximum phase shift of 45°.
Which of the following is/are true?1
it represents lead compensator and α = 0.172
2
it represents lag compensator and α = 0.172
3
it represents lag compensator and α = 5.828
4
it represents lead compensator and α = 5.828