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This paper proposes an LC-compensated electric field repeater to extend the transfer distance of a capacitive power transfer (CPT) system. The repeater contains two metal plates, connected with an external capacitor and an external inductor. The plates are used to generate electric fields to transfer power. The external inductor and capacitor are used to resonate with the plates to increase the voltage...
In an Inductive Power Transfer (IPT) system, the magnetic design of the primary and secondary pads is an important factor that determines the power transfer capability. This paper proposes a DD2Q power receiver coil set, a novel three coil magnetic pad that comprises a classical DD winding and two additional quadrature windings placed at the secondary side (referred to as 2Q). The DD2Q coil set achieves...
In this paper, an analysis into the wireless power transfer system using inductive coupling with multiple transmitters and single receiver is presented. It is proved that, with certain total amount of input power from all of the transmitters, there is a maximal output power that can be delivered to the receiver. To achieve this optimal result, the electrical currents in all the transmitters shall...
In this paper a new large distance, 6.78 MHz, fixed frequency, 50 W output, wireless power transfer system design methodology for telemetries has been proposed. Receiver side tuning topology is selected in the first step of the design methodology. Then, a nominal coupling coefficient between the transmitter and the receiver coil has been calculated using given distance and coil diameters. Feasible...
The aim of this paper is to present an alternative coil topology for ICPT (Inductively Coupled Power Transmission) links, called meander type coil, specifically for dynamic charging. The analysis is carried out using FEM software FLUX® supported by Matlab®. The goal is to design an inductive link in such a way that the coupling keeps constant while the receiver part is moving along the track, in order...
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