What is an Open-Loop Control System?
The control system in which controlling action or input does not rely on the outcome or output is known as the Open-loop control system. This is a very simple system that needs low maintenance and is very cost-effective.
What is a Closed-Loop Control System?
The control system which utilises its feedback signal or calls to render output is known as the Closed-loop control system.
Difference between Open-Loop & Closed-Loop Control System
S.No. |
Open-Loop Control System |
Closed-Loop Control System |
1 |
The controlled action is free from the output in the case of an open-loop control system. |
Here the output relies on the controlled act of the system. |
2 |
It is also known as a non-feedback control system. |
It is also known as a feedback control system |
3 |
The segments of the open-loop control system hold a controlled process and controller. |
The segments of the closed-loop control system contain a controlled process, controller, amplifier and feedback. |
4 |
It is simple to build this system. |
It is complex to construct this system. |
5 |
It is unreliable. |
It is reliable |
6 |
The precision exactness of this system mostly relies on calibration. |
The accuracy depends on the feedback. |
7 |
These systems are stable. |
These are less stable as compared to the open-loop control system. |
8 |
Here optimization is not allowed. |
Optimization is allowed here. |
9 |
It provides a quick response. |
It is sluggish in terms of providing the response. |
10 |
The calibration of this system is hard. |
The calibration of this system is simple. |
12 |
Open-loop control systems are nonlinear |
These are linear. |
13 |
Some of the examples of these types of systems are TV remote, automatic washing machine, immersion rod, traffic light, etc. |
Some of the examples of these types of systems are pressure and speed, AC, control systems, toaster, and refrigerator. |
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