Patent ID: 11962165
Assignee: NUCURRENT, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A base station for a wireless power transfer system at an operating frequency, the base station comprising:
an interface surface;
a coil defining a top face and a bottom face, the coil configured to transmit a power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer; and
a shielding comprising a magnetic backing and a magnetic wall, the magnetic wall and the magnetic backing defining a cavity that extends at least from the magnetic backing to the bottom face of the coil, the cavity configured to receive, at least in part, an object external to the base station, and
wherein the bottom face of the coil is positioned above a top surface of the magnetic wall, such that the shielding is configured to concentrate magnetic fields created by the coil.