Function File: C = pidstd (Kp)

Function File: C = pidstd (Kp, Ti)

Function File: C = pidstd (Kp, Ti, Td)

Function File: C = pidstd (Kp, Ti, Td, N)

Return the transfer function C of the PID controller in standard form with first-order roll-off.

                 1        Td s
 C(s) = Kp (1 + ---- + ----------)
                Ti s   Td/N s + 1