A generalized multi-channel PID controller module design using FPGA

Proportional-Integral-Derivative (PID) controllers are universal control structure and have widely used in automation systems, they are usually implemented either in hardware using analog components or in software using computer-based systems. In this work, we focused our works on building a multi-channel PID controller by Field Programmable Gate Arrays (FPGAs). Combining FPGA with high speed multi-channel serial ADC and serial DAC, the designed system has the effects of fast speed, high accuracy, compact size and cost effectiveness. It is evaluated by applying to a second-order system, and experimental results show that control performance is fulfilled the desired.