Performance Enhancement of Boost Converter Based on Linear-to-Nonlinear Translator

A linear-to-nonlinear translator is proposed herein and applied to the boost converter to improve the operating performance of the boost converter all over the input voltage range. The proposed translator is inserted between the PID controller and the main power stage such that the PID controller considers the behavior of the boost converter to be quasi-linear, thereby suppressing the effect of nonlinear behavior of the boost converter on the PID controller. In this paper, some experimental results are provided to demonstrate the effectiveness of the proposed control scheme.