This article explains proportional integral derivative (PID) control, including the math behind it, with the use case of a linear servo motor.

The goal in digital feedback control design is to determine the performance criteria needed for a sensor’s analog-to-digital converter (ADC) and the controller’s digital-to-analog converter (DAC).

This paper presents a DC motor speed controlling technique under varying load condition. The linear system model of separately excited DC motor with Torque-variation is designed using PID controller.