FPGA-Based PID Controller Implementation

Abstract

Proportional-Integral-Derivative (PID) controllers are widely used in automation systems. They are usually implemented either in hardware using analog components or in software using computer-based systems. They may also be implemented using Application Specific Integrated Circuits (ASICs). This paper outlines several modules necessary for building PID controllers on Field Programmable Gate Arrays (FPGAs) which improve speed, accuracy, power, compactness, and cost effectiveness. Two PID controllers for speed and position utilizing these modules are implemented and used as experimental platforms to illustrate and test the designed modules.