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Inductive Power Projection
Stand: DX705
Inductive Power Projection (IPP) has developed a wireless, inductive charging solution aimed at efficiently transferring power and data, bidirectionally, between charge stations and vehicles.
We use a much lower weight coil on the vehicle and, overall, a lower cost system than has been seen previously in inductive charging solutions. Partly for that reason we’re targeting UAVs as our first commercial application of MHz-WPT. Conventional WPT technology uses copper coils, which are limited to kHz frequency power transmission due to skin effect, and while using increased turns of copper or ferrite cores can both increase performance, they add weight and bulk, meaning diminishing returns. By contrast, our patented air-cored metal/dielectric hybrid ring resonator technology uses MHz-frequency, and can be constructed from a variety of light-weight materials.
The design of the MHz-WPT solution is additionally optimised to minimise power transmission to adjacent foreign bodies, lessening or removing the need for foreign object detection near the UAV and charging module. It can also transfer power and data through sea water, suitable for USV, UUV and other marine applications.
Currently, we can project a few kilowatts across up to half a metre in air, with up to a metre lateral disablement, but we are developing a sapphire-based design for future commercialisation, which should be capable of up to 50 kW wireless charging rates across a metre or more with greater lateral displacement.
We use a much lower weight coil on the vehicle and, overall, a lower cost system than has been seen previously in inductive charging solutions. Partly for that reason we’re targeting UAVs as our first commercial application of MHz-WPT. Conventional WPT technology uses copper coils, which are limited to kHz frequency power transmission due to skin effect, and while using increased turns of copper or ferrite cores can both increase performance, they add weight and bulk, meaning diminishing returns. By contrast, our patented air-cored metal/dielectric hybrid ring resonator technology uses MHz-frequency, and can be constructed from a variety of light-weight materials.
The design of the MHz-WPT solution is additionally optimised to minimise power transmission to adjacent foreign bodies, lessening or removing the need for foreign object detection near the UAV and charging module. It can also transfer power and data through sea water, suitable for USV, UUV and other marine applications.
Currently, we can project a few kilowatts across up to half a metre in air, with up to a metre lateral disablement, but we are developing a sapphire-based design for future commercialisation, which should be capable of up to 50 kW wireless charging rates across a metre or more with greater lateral displacement.