I. Introduction
Power converters have a large range of applications, from low power in mobile devices to high power in grid applications. In all these applications, the electric power converters work as an interface between a source and load, allowing microprocessors to operate, electric motors to be controlled, and electric cars to charge. In the search for an increasing power density, the switching frequency in power processing converters is typically being increased [1], and multilevel converters are being used to reduce the size of passive filtering components.