What is PID controller and why is it used ??

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Accepted Answer

PID controller is a control loop feedback mechanism used in systems to maintain desired setpoints by adjusting inputs based on error signals.

PID stands for Proportional-Integral-Derivative, which are the three terms used in the controller algorithm.
Proportional term responds to the current error signal.
Integral term deals with the accumulation of past errors.
Derivative term predicts future error trends.
PID controllers are widely used in industries like manufacturing, robotics, and automotive for precise control of systems.
For example, in a temperature control system, a PID controller can adjust the heating element based on the difference between the set temperature and the actual temperature.

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