The transfer function of a lead compensator is given by,
\({G_c}\left( s \right) = \frac{{\left( {a+s} \right)}}{{\left( {b +s} \right)}}\)
The maximum phase shift that can be obtained by this compensator is 30°. And Maximum phase shift occurs at a frequency of 14.43 rad/sec. Then the value of 'a + b' is:
Enter numerical value using the virtual keypad. Round off where necessary.