Johann W. Kolar

TL;DR: A model for calculating the conducted electromagnetic interference (EMI) noise of a 7.5-kW D3AB PFC rectifier operating from a 400 V shows that the level of conducted EMI noise increases with increasing load on the secondary side, which is consistent with the predictions of the noise model.

TL;DR: In this paper, the impact of operating point dependent switching time delays on the output characteristic of a T-type half-bridge was investigated for dc-dc operation, and it was found that a series connection of operating-point dependent components, i.e., a differential resistance and a voltage source, can accurately reproduce the implications of these switching time delay on the response of the output current of the halfbridge to a step of the duty cycle.

TL;DR: In this paper, the authors present a novel topology of a power supply required for material removal in rotor balancing machines, which has an increased ignition voltage capability of up to 10 kV compared to standard power supplies with only 300 V. The control of the current pulse amplitude and length are described.

TL;DR: In this article, a magnetically levitated homopolar bearingless slice motor was proposed for temple design. The proposed setup consists of two oppositely magnetized permanent magnets on the rotor and stator and provides high axial stiffness.

TL;DR: This work identified the most important geometrical parameters of the impeller for blood pumps with respect to cell compatibility and provides valuable design guidelines for improving existing pumps.