Question

Define transfer function and find the transfer function of a closed loop control system?

Answer 1

Answer and explanation :

TRANSFER FUNCTION : transfer function is defined as the ratio of output and input at zero initial condition it is commonly denoted by T(S)

TRANSFER FUNCTION OF A CLOSED LOOP :

for a closed loop transfer function

`T=(G)/(1+GH)`

where G is the forward path gain and H is the feedback gain close loop is formed when output is connect to input through a feedback this feedback may be a positive feedback or negative feedback but generally use negative feedback