The described shielding system comprises a first shield and a second shield. The first shield comprises a first plurality of conductive segments extending from a first location. The first plurality of conductive segments are separated from each other by a first plurality of gaps. The second shield comprises a second plurality of conductive segments extending from a second location. The second plurality of conductive segments are separated from each other by a second plurality of gaps. An insulator may be interposed between the first shield and the second shield. The first plurality of gaps may at least partially align with the second plurality of conductive segments and the second plurality of gaps may at least partially align with the first plurality of conductive segments.

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a wireless power transmission apparatus that supports charging of one or more wireless power receiving apparatuses. The wireless power transmission apparatus (such as a charging pad or surface) may include multiple primary coils and multiple local controllers (such as one local controller per primary coil). Each local controller can independently activate a primary coil to supply power to a wireless power receiving apparatus. Thus, the wireless power transmission apparatus may support concurrent charging of multiple wireless power receiving apparatuses. When a first primary coil is activated, a local controller can mute or disable the adjacent primary coils (near the first primary coil) to mitigate undesirable interference. In some implementations, the local controller may provide a status to other local controllers (associated with adjacent primary coils) to disable the adjacent primary coils.

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a wireless power transmission apparatus that supports charging of one or more wireless power receiving apparatuses. The wireless power transmission apparatus (such as a charging pad or surface) may include multiple primary coils and multiple local controllers (such as one local controller per primary coil). Each local controller can independently activate a primary coil to supply power to a wireless power receiving apparatus. Thus, the wireless power transmission apparatus may support concurrent charging of multiple wireless power receiving apparatuses. When a first primary coil is activated, a local controller can mute or disable the adjacent primary coils (near the first primary coil) to mitigate undesirable interference. In some implementations, the local controller may provide a status to other local controllers (associated with adjacent primary coils) to disable the adjacent primary coils.

An adapter device is configured to interface between a wireless power receiver that includes a first array of magnets arranged around a receiver coil in the wireless power receiver and a wireless power transmitter lacking a corresponding array of magnets arranged around a source coil in the wireless power transmitter. The adapter device includes a substrate and a ferrite shield formed of a magnetic material and configured to be placed between the wireless power receiver and the wireless power transmitter.

Wireless charging transfer devices are described herein that are configured to achieve wireless charging of portable electronic devices across a gap from a wireless charger. The devices include coil configuration including a receiver coil, a transmitter coil, and a bridge electrically coupling the receiver and transmitter coils across the gap. The coil configuration can be received within a housing that can provide storage space or can incorporate an expandable grip accessory.

Wireless charging transfer devices are described herein that are configured to achieve wireless charging of portable electronic devices across a gap from a wireless charger. The devices include coil configuration including a receiver coil, a transmitter coil, and a bridge electrically coupling the receiver and transmitter coils across the gap. The coil configuration can be received within a housing that can provide storage space or can incorporate an expandable grip accessory.

An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the material from interaction with magnetic fields that allow for wireless energy transfer therethrough. The opening may be configured as a cut-out, a slit or combination thereof that extends through the thickness of the electrically conductive material. The electrically conductive material is configured with the cut-out and/or slit pattern positioned adjacent to an antenna configured to receive or transmit electrical energy wirelessly through near-field magnetic coupling (NEMC). A magnetic field shielding material, such as a ferrite, may also be positioned adjacent to the antenna. Such magnetic shielding materials may be used to strategically block eddy currents from electrical components and circuitry located within a device.

An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the material from interaction with magnetic fields that allow for wireless energy transfer therethrough. The opening may be configured as a cut-out, a slit or combination thereof that extends through the thickness of the electrically conductive material. The electrically conductive material is configured with the cut-out and/or slit pattern positioned adjacent to an antenna configured to receive or transmit electrical energy wirelessly through near-field magnetic coupling (NEMC). A magnetic field shielding material, such as a ferrite, may also be positioned adjacent to the antenna. Such magnetic shielding materials may be used to strategically block eddy currents from electrical components and circuitry located within a device.

A wireless electrical energy transmission system is provided. The system comprises a wireless transmission base configured to wirelessly transmit electrical energy or data via near field magnetic coupling to a receiving antenna configured within an electronic device. The wireless electrical energy transmission system is configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device external and adjacent to the transmission base.

A wireless electrical energy transmission system is provided. The system comprises a wireless transmission base configured to wirelessly transmit electrical energy or data via near field magnetic coupling to a receiving antenna configured within an electronic device. The wireless electrical energy transmission system is configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device external and adjacent to the transmission base.