Floating point FPGA architecture of PID controller

Abstract

Proportional Integral Derivative (PID) Controller is most well-known and consistent with industry. It is applied to many applications such as flow, temperature, motor control, robotic applications, biomedical applications, etc. Many applications demands fast response. Parallel implementation of proportional, integral, derivative action accelerates its response which can be achieved by using field programmable gate arrays (FPGA). Floating point implementation of PID gives more truthfulness. In this paper, a sincere effort has been made to design and implement the floating point parallel architecture of PID controller using SPARTAN 3E(XC3S-500e) FPGA.