PID Controller



A control loop feedback mechanism widely used in industrial control systems and a variety of other applications requiring continuously modulated control. it automatically applies accurate and responsive correction to a control function. An everyday example is the cruise control on a car, where ascending a hill would lower speed if only constant engine power is applied. The controller’s PID algorithm restores the measured speed to the desired speed with minimal delay and overshoot, by increasing the power output of the engine.

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