The compensator G(s) =5(1+0.3s)/1+0.1s would provide a maximum phase shift of:
A. 20°
B. 30°
C. 45°
D. 60°
Answer:B
The compensator G(s) =5(1+0.3s)/1+0.1s would provide a maximum phase shift of:
A. 20° B. 30° C. 45° D. 60°
Explanation: The two corner frequencies are 1/0.3 and 1/0.1. The maximum phase lead occurs at mid frequency w =10/√ and maximum phase is 30°.