Implementation of Digital PID Feedback Controller for a Buck Converter
The design of a digital controller is presented for a dc-dc converter. Digital control of dc-dc converter using DSP is becoming more and more common in industry today. Starting with a dc-dc buck converter and a given set of performance specifications, a digital PID controller is designed and implemented in a digital signal processor. All the necessary DSP hardware or software techniques and algorithms required to implement the controller are discussed in detail. The steady state and dynamic response performance of the controller is presented in order to demonstrate the effectiveness of the design. The design is validated using the conventional simulation in MATLAB.