A receiver (6) is disclosed for wirelessly receiving power from a transmitter. The receiver comprises a resonant receiver circuit having a plurality of coils (200a)-(200d) operatively coupled to a combining circuit (202). Each coil, with the combining circuit, is arranged to receive power via resonant inductive coupling. The combining circuit is arranged to combine power received from the plurality of coils for provision to an electric load. Other embodiments provide a capsule for ingestion by a patient, the capsule comprising the receiver.

Systems, methods and apparatus for wireless charging are disclosed. A method for operating a wireless charging device includes determining that a chargeable device is positioned proximate to a plurality of charging coils provided at a charging surface of the wireless charging device, identifying two or more charging configurations for the chargeable device, determining power loss while wirelessly transmitting power to the chargeable device for each charging configuration in the two or more charging configurations, and initiating charging of the chargeable device using a charging configuration associated with a lowest power loss to configure the wireless charging device. Each charge configuration includes at least one of the plurality of charging coils.

A wireless connector includes: a first unit attached detachably from the outside of a first object; and a second unit attached detachably from the outside of a second object. The first unit includes a first housing to which a first transmission/reception part and a first connector part are secured, the first connector part being attached to the first object and transmitting a to-be-transmitted target between the first connector part and the first object. The second unit includes a second housing to which a second transmission/reception part and a second connector part are secured, the second connector part being attached to the second object and transmitting a to-be-transmitted target between the second connector part and the second object. The first transmission/reception part and the second transmission/reception part are arranged so as to be separated from each other and opposed to each other to wirelessly transmit the to-be-transmitted target.

A wiring device includes a line input terminal configured to couple to a source of alternating current (AC) power and a charging circuit having an induction coil to propagate a magnetic charging field to emanate from the wiring device. The wiring device can be provided individually or in a kit with a wall plate configured for covering the wiring device. Magnet(s) can be provided proximate a front face of a housing of the wiring device, and/or included in/on a wall plate, to magnetically attract an electronic device when the electronic device is positioned proximate the front face. Such wall plates can be provided individually without a wiring device. Additionally or alternatively, a wall plate with or without magnets can include a shelf protruding from a bottom portion thereof, the shelf configured to support an electronic device in position of a front face of a housing of a wiring device.

A user premises system is provided. The user premises system includes an internal unit and an external modem unit. The internal unit includes a wireless power transmitter unit that inductively provides power through an exterior structure of a premises. The external modem unit includes a wireless power receiver unit that inductively receives power from the wireless power transmitter unit of the internal unit through the exterior structure of the premises. The internal and the external modem units each include a short range transceiver that wireless communicate data between internal and the external modem units.

An annular resonator and a wireless power transmitter are provided. The annular resonator includes upper and lower surfaces, outer and inner surfaces arranged along an annular shape, a plurality of conductors, and a plurality of capacitors connected to the plurality of conductors, respectively. Each conductor includes a first section arranged on the upper surface, a second section extending from the first section and arranged on the outer surface, a third section extending from the second section and arranged on the lower surface, and a fourth section extending from the third section and arranged on the inner surface. A first section of each of a first conductor, a second conductor, a third conductor, and a fourth conductor are sequentially arranged along the upper surface. A second section of each of the second conductor, the third conductor, the fourth conductor, and the first conductor are sequentially arranged along the outer surface.

Systems, methods and apparatus for wireless charging are disclosed. A wireless charging device has a resonant circuit including one or more power transmitting coils in a charging surface of the charging device, a driver circuit configured to provide a charging current to the resonant circuit, and a controller. The controller is configured to determine an average transmitted power using samples of current and voltage captured from the resonant circuit, and determine that a foreign object is located on or near the charging surface when the average transmitted power exceeds a measurement of received power provided by a receiving device and parasitic losses associated with the wireless charging device. In one example, each sample of current is obtained by measuring a current flowing in the resonant circuit, and each of sample of voltage is obtained by measuring a voltage across the one or more power transmitting coils.

Disclosed is a shelf light for plant growth having vertical stand with a plurality of wooden partitions vertically arranged in parallel at intervals and wooden vertical rod connected between adjacent wooden partitions, and lighting unit on top of vertical stand. Wooden partition on topmost end vertically is constructed as light holder for arranging lighting unit; power box powering lighting unit is mounted on another wooden partition below light holder; power box is provided with plug connecting wire accessing to electricity, with side wall configured with USB-A, USB-B and USB-C interfaces and top surface configured with wireless charging pad. The utility model, a framework entirely formed by connecting all-wooden materials, has firm structure, with functions of plant growth light, USB power docking station and wireless charging pad, so as to provide green decoration for home environment while compounding use of charging base stations, resulting in strong functionality and high space utilization.

A metasurface for wireless power transfer includes an insulated support structure. A plurality of magnetically coupled resonators are insulated and supported by the insulated support structure. The plurality of coupled resonators are configured and arranged to couple within and shape a magnetic near field distribution from a transmitter into a target distribution toward a target receiver. The plurality of coupled resonators form a non-uniform impedance distribution pattern to provide the shape of the target distribution. The insulated support structure can be thin and flexible, allowing it to be worn by a person, for example to transfer power to an implanted device.

A dual-use electromagnetic beam system may be used as a remote power delivery system when not needed as an offensive weapon. For example, a system for disabling or destroying uncooperative or enemy assets such as UAVs or ground vehicles may be used during “down time” to provide power to assets that are separated from prime power sources by distance or by logistics.