Implementation of DC Motor Speed Control Logic on FPGA

In this paper, we aim to design a system which can automate the speed control process and allow more accurate control of speed of the DC motor. It is used for speed control of motors of different voltage ratings. We aim to do this by implementing a Proportional-Integral-Derivative (PID) Controller designed on a FPGA. By fixing the duty cycle, motors of different ratings can be controlled using the same circuit. This system will be capable of adapting to the changes in desired speed in real time. It is designed in such a way that it adapts to dynamic changes in the load on the motor shaft. Using, this method we can accurately achieve the required output voltage across the motor to drive the motor at required speed and the need for an external starter circuit to start the motor without causing any damage to the control circuit is eliminated.