Design and Implementation of a Verilog Based PID Controller for DC Motor Speed Control

In this paper, a hardware description language (HDL)-based digital Proportional-Integral-Derivative (PID) controller is proposed for accurate DC motor speed regulation. The design optimization and implementation is carried out using Verilog-HDL. The proposed PID controller minimize speed error and maintain control stability by dynamically adjusting the PWM signal. The proposed design is simulated using GTKWave, synthesized on Cadence tools, and deployed on an FPGA. Comprehensive power, area, and delay analysis is carried out. Finally, a physical layout is generated for the synthesized design. The results demonstrate improved control accuracy, faster response, and suitability for real-Time embedded systems.