Optimal design of digital control system for interleaved boost chopper circuit with the coupled inductor

This paper presents a digital control technique for the interleaved boost chopper circuit with the coupled inductor that achieves the miniaturization of boost chopper circuit. The digital re-design method is selected as design technique. In this control technique, the continuous-time controller is first designed to make the controlled system stable. Next, that controller is converted into discrete-time controller based on a well-known approach to the discrete-time modeling. The effectiveness of this conversion is confirmed on the frequency property. Furthermore, the digital control design approaches presented here is validated with experimental results.