1.

The transfer function of a phase-lead controller is given by

A. (1+aTs)/(1+Ts) , a>1 T>0
B. (1+aTs)/(1+Ts) , a<1 T>0
C. (1-aTs)/(1+Ts) , a>1 T>0
D. (1±Ts)/(1+Ts) , a<1 T>0
Answer» B. (1+aTs)/(1+Ts) , a<1 T>0


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