Power Converter Designs With Nonlinear Analysis Techniques

Abstract

This manuscript introduces a method of power converter designs that applies a nonlinear analysis technique. Recently, the development of next-generation semiconductor devices, such as silicon carbide (SiC) and gallium nitride (GaN), has opened the way to new technological innovations, namely, high-frequency, high-efficiency, and small-scale power converters. To achieve converter designs using these devices, a new analysis-and-design approach that provides high-accuracy design values is required. On the other hand, switching power converters are regarded as nonlinear dynamical systems. From this viewpoint, it is possible to dramatically improve the converter-design efficiency by applying the nonlinear analysis technique to converter designs. Through concrete examples of converter designs using the proposed design technique, we show the effecriveness and applicability of the nonlinear analysis technique.