6.2.2 Second-Order System with Velocity Feedback R E、E1 K S(S+1 K K K K Open-loop Transfer E S(Ts+1)+KKS S[Ts+1+KK, Function Compare with the open-loop transfer function without velocity feedback K E S(TS+1)• 6.2.2 Second-Order System with Velocity Feedback C s(Ts +1) R E K KH K sv E1 ( 1) [ 1 ] v Ts KKv s K s Ts KK s K E C + + = + + = Open-loop Transfer Function Compare with the open-loop transfer function without velocity feedback: ( +1) = s Ts K E C