PID controller working

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A PID controller is a type of feedback control system that calculates an error value as the difference between a desired setpoint and a measured process variable.

PID stands for Proportional-Integral-Derivative, which are the three terms used to describe the controller's actions.
The proportional term responds to the current error value.
The integral term responds to the accumulation of past errors.
The derivative term responds to the rate of change of the error value.
PID controllers are commonly used in industrial control systems to regulate processes such as temperature, pressure, flow, and speed.
An example of a PID controller in action is a thermostat maintaining a constant room temperature by adjusting the heating or cooling output based on the difference between the setpoint and the actual temperature.

PID controller working

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