Control Systems - GATE practice papers - Electronics & Communication for Q. 498
Q. Which control systems basically exhibit their output dependency upon input as well as the previous output stages? (Marks : 01)- Published on 19 Oct 15a. Open-loop Control System
b. Closed-loop Control System
c. Both a & b
d. None of the above
ANSWER: Closed-loop Control System
In an open-loop system, the control characteristics are totally independent of the system output & hence are generally stable, while the output relies on the controlling action (input) along with the previous output
in a closed-loop control system. As a result, closed loop systems may sometimes become unstable.
