Design and Simulation of PID Controller using FPGA

Proportional Integral Derivative (PID) controller is the most preferable controller in industries that does not require precise analytical model of the system to be controlled. Implementation of PID controllers has gone through several stages of evolution from the early mechanical and pneumatic designs to the microprocessor based systems. Recently “Field Programmable Gate Array” has become an alternative solution for the realization of Digital PID controllers. To overcome the hardware complexity by the use of more processors for multi-channel, we are using single PID controller for multi-channel. With all any of all threes gains, desired performance can be achieved with this control by carefully choosing gains. PID controller deals with three control actions. They are P (proportional) control, I (integral control) and D (derivative control).