Patent ID: 11909248
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 13:
14. An accessory for an electronic device, the accessory comprising:
a dielectric layer that is interposed between the electronic device and an additional electronic device during wireless power transfer operations between the electronic device and the additional electronic device;
a first magnetic alignment structure;
a first ferrimagnetic core in the dielectric layer that is interposed between a second ferrimagnetic core in the electronic device and a third ferrimagnetic core in the additional electronic device when the first magnetic alignment structure is magnetically coupled to a second magnetic alignment structure in the electronic device and a third magnetic alignment structure in the additional electronic device; and
a shielding structure in the dielectric layer, wherein the shielding structure is interposed between the first ferrimagnetic core and the first magnetic alignment structure.