A Fifth-Coordinate Phase-Matched Inductive Charging Pad

The module set out in this paper is a phase-matched inductive charging pad intended for charging electric vehicles and industrial robots without exposed contacts. Its operating principle is that two resonant coils transfer power across an air gap, and a phase-matching network attributed to fifth-coordinate displacement is used in the model to hold the coupling at its design value over a wider misalignment range. The design is computed from stated assumptions throughout; it is simulated, not measured, and no prototype results are reported. The headline result is a power delivered to the load of 1.35e+03 W, obtained with primary drive power of 1.47e+03 W with a computed efficiency or performance coefficient of 92.2 per cent where that measure applies, for a unit of mass 3.2 kg whose characteristic scale is a operating frequency of 8.5e+04 Hz. A parameter sweep reported in the Results section shows how the output moves when the principal variable is changed, and the density of the working material, 5.2e+03 kg per cubic metre, sits about 54.3 orders of magnitude below the neutron-carrier density bound of 9.72e+57 kg per cubic metre, so the bound enters this design as a sizing ceiling and a margin statement rather than as an operating condition. The limitations are stated plainly: delivered power still falls steeply with lateral misalignment and gap; the phase network narrows, but does not remove, that dependence. Status: SIMULATED, NOT MEASURED.