This article presents a circuit configuration and control for coil-array wireless power transmitters. The target coil arrays have coils that are uniform in shape dimensions regularly arranged with an angular interval of 120°. system has three-leg half-bridge inverter, which simultaneously feeds the three transmitter. It can deal more than by adding switch set between inverter coils. to cancel m...

This paper presents the fabrication, modeling, characterization and analysis of silicon-embedded, aircore, three-dimensional toroidal inductors for power converter applications. The inductors are fabricated within deep silicon recesses by means of a 3-D silicon shadow mask coupled with electroplating techniques. The losses in the inductor and the surrounding silicon are analytically modeled usi...

This paper proposes a general design method of modular multiphase permanent-magnet synchronous machine with hybrid single/double layer (HL) fractional-slot concentrated winding (FSCW), which indicates that double-layer (DL) FSCW machines satisfying two preconditions can be transformed into HL machines. different slot and pole number combination are designed to prove the feasibility universality...

System parameters for solenoid actuators are important for high performance control and for self-sensing. Due to the nonlinearities in the solenoid actuators, parameter identification procedures that aim to obtain the electro-mechanical property can be complex and time consuming. In this paper, a self-calibration procedure for solenoid actuators in push-pull configurations is proposed. Utilizin...

Silicon carbide (SiC) MOSFET has the potential to replace silicon (Si) IGBT due to its superior switching performance. However due to presence of parasitic inductance in converter layout, device voltage and current experience overshoots and oscillations during device switching. These undesired overshoots increase switching loss. In the context of these parasitic inductances, the performance of ...

Energy technique procedure for computing the leakage reactance in transformers is presented. This method is very efficient compared with the use of flux element and image technique and is also remarkably accurate. Examples of calculated leakage inductances and the short circuit impedance are given for illustration. For validation, the results are compared with the results obtained using practic...

This article first proposes a generalized decomposition model for dual three-phase (3-ph) permanent magnet synchronous machines (PMSMs) with 0°, 30°, and 60° angle displacements between two sets of windings, allowing controlled in two-dimensional orthogonal ?? xy subspaces. can decouple mutual inductances coupling phases from sets, respectively. However, there often exist asymmetric impedances,...

Research in system stabilization has traditionally relied on the availability of a complete system implementation. As such, it would appear that the scalability and reusability of stabilization is limited in practice. Towards redressing this perception, in this paper, we show for the first time that system stabilization may be designed knowing only the system specification but not the system im...