Efficient Fpga Implementation of 2nd Order Digital Controllers Using Matlab/simulink

This paper explains a method for the design and implementation of digital controller based on Field Programmable Gate Array (FPGA) device. It is more compact, power efficient and provides high speed capabilities as compared to software based PID controllers. The proposed method is based on implementation of Digital controller as digital filters using DSP architectures. The PID controller is designed using MATLAB and Simulink to generate a set of coefficients associated with the desired controller characteristics. The controller coefficients are then included in VHDL that implements the PID controller on to FPGA. MATLAB program is used to design PID controller to calculate and plot the time response of the control system. The synthesis report concludes the resource utilization of selected FPGA.