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A closed-loop control system, also known as a feedback control system, is a type of control system in which output is measured and compared to a desired or reference value. Based on this comparison, corrective actions are taken to adjust the system’s behavior and minimize any deviation from the desired output.
The primary advantage of a closed-loop feedback control system is its ability to reduce a system’s sensitivity to external disturbances, for example opening of the dryer door, giving the system a more robust control as any changes in the feedback signal will result in compensation by the controller.
Examples. We use closed loop control systems in many applications of our day to day life. Some of the systems designed based on the concept of open loop control systems are given below. Automatic Electric Iron –Depending on the temperature of the iron heating elements were controlled automatically.
A simple example of a closed loop control system is a home thermostat. The thermostat can send a signal to the heater to turn it on or off. It uses a temperature sensor to detect the current air temperature. When the temperature is below the set point, it turns the heater on.
A closed-loop controller or feedback controller is a control loop which incorporates feedback, in contrast to an open-loop controller or non-feedback controller. A closed-loop controller uses feedback to control states or outputs of a dynamical system.
A simple example of a closed -loop control system is a home thermostat. The thermostat can send a signal to the heater to turn it on or off. It uses a temperature sensor to detect the current air temperature.
Closed loop: Know a set of general principles. Trust your eyes to guide yourself in.
Examples of closed-loop control system. Here we will discuss the detailed operation of an automatic electric iron and a temperature control system. 1. Automatic Electric Iron. Consider an example of automatic electric iron which acts as a closed-loop system. The figure below represents the block diagram with major components:
Feedback control is an extremely common method for driving a system, usually consisting of an input data point or setpoint, an output, a process, sensors, and a controller. With these components, we create a closed-loop system that senses the effects of the output from the controller.
Explore introductory examples to learn about the basics of feedback control (closed-loop control) systems. Learn how feedback control is used to automate processes and discover how it deals with system variations and unexpected environmental changes.