Johann W. Kolar

TL;DR: In this paper, a synchronous buck converter is designed using two 600 V, 15 A GaN GIT switches developed by Panasonic, and a comparison is made between the GIT and a similarly rated Si IGBT for high speed electrical drive applications where the higher switching frequencies enabled by the use of GaN is shown to reduce the rotor losses in two typical types (slotted and slotless stator) of high-speed permanent magnet electric machines.

TL;DR: In this paper, the design and implementation of a printed circuit board (PCB)-integrated flyback transformer for a 1-mm-thin single-phase power factor correction rectifier is investigated.

TL;DR: In this article, a two-third pulse-width modulation (2/3-PWM) scheme is proposed to shape the DC-link current with the input stage, and the desired 3-Φ sinusoidal load phase currents are generated by switching only two out of the three phases of the output stage.

TL;DR: A novel approach based on indirect modulation, which significantly extends the reactive power control range for three-phase ac-ac matrix converters (MCs) and which is implementable with lowest computational effort, is proposed.

TL;DR: The fundamental scaling laws of the on-state resistance and output capacitance of power semiconductors are revisited to propose the extended FOM, or X-FOM, a Figure-of-Merit that quantifies bridge-leg performance in multi-level (ML) topology and supports the quantitative comparison and optimization of topologies and power devices.