Digital control with asynchronous Linear-non-Linear compensator

At present, digital control solutions are becoming more attractive than analog implementations in some power converter applications owing to easy design of complex control strategies and control reconfigurability. This paper proposes and validates the digital implementation of an asynchronous linear-non-linear (LnL) compensator to improve the dynamic response of interleaved buck converters. It is important to highlight that the same digital LnL compensator is able to keep the dynamic response even with a very important variation of the power stage parameters, such as the output filter or the switching frequency.