A coil structure applied in the field of wireless charging comprises a circuit board and a conductor. The conductor is arranged on the circuit board. The conductor comprises a plurality of coil turns, an input terminal, an output terminal, and a plurality of first capacitor structures. The coil…

A coil structure applied in the field of wireless charging comprises a circuit board and a conductor. The conductor is arranged on the circuit board. The conductor comprises a plurality of coil turns, an input terminal, an output terminal, and a plurality of first capacitor structures. The coil…

An inductance communication coil, including a conductor having at least one conductive turn, wherein a width of the conductor is wider at a first location relative to that at a second location. The conductor can be made out of metal. In some embodiments, the first location and the second location…

Coatings comprising iron alloys that include iron and at least another metal (e.g., cobalt and/or nickel) for wireless recharging devices are generally described. The coatings may be directly applied to a substrate, such as a print circuit board.

Structures, devices, and methods for wireless power transfer systems are described. A structure can include a plurality of strands arranged into a first coil layer and a second coil layer. The plurality of strands can be formed on a parallel path surrounding a center of the structure. The plurality…

A coil structure for near-field wireless power transfer, integrating the traditional inductor and external capacitor structure into one single coil and forming a series resonance. The series resonance is achieved by a terminal connection and layering method. The electric field is canceled via a…

The present disclosure relates to an electrical line, a coil and an inductive power transfer device. The electrical line comprises a conductor carrier having at least two substantially parallel carrier layers and a plurality of circuit traces arranged on at least three different, substantially…

This application discloses a coil winding, and belongs to the field of wireless charging technologies. The coil winding includes: an insulation layer, a first part of coils located on one side of the insulation layer, and a second part of coils located on the other side of the insulation layer. The…

A resonant induction wireless power transfer coil comprising: a 2n-layer coil stack, where n is a positive integer, each layer of the coil stack comprising: a dielectric (400) having a first side and a second side, a first conductor pattern comprising a first plurality of conductors (401) wound in…

A wireless power transfer coil circuit includes two or more current paths. The two or more current paths include a first current path having a first conductive spiral trace and a second current path having a second conductive spiral trace nested with the first conductive spiral trace.

This application discloses a coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a terminal. The module includes a first planar coil winding and a second planar coil winding. A first coil of the first planar coil winding…

This application discloses a coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a mobile terminal. The coil module includes a first planar coil winding, and the first planar coil winding includes a plurality of turns of…

Coil structures and methods of forming are provided. The coil structure includes a substrate. A plurality of coils is disposed over the substrate, each coil comprising a conductive element that forms a continuous spiral having a hexagonal shape in a plan view of the coil structure. The plurality of…

An apparatus for a multilayer printed circuit board (PCB) coil, comprising: a first coil layer of a PCB; a plurality of vias coupled to and distributed to cover substantially the surface of the first coil layer within the PCB; and a second coil layer of the PCB and coupled to the vias to cover…

Disclosed herein is a coil component that includes a substrate having a first surface, and first and second coil patterns coaxially formed on the first surface of the substrate and electrically isolated from each other. The first coil pattern has a plurality of turns including a first turn and a…

Disclosed is a coil positioning device for a wireless charging system. The coil positioning device comprises a supporting element configured to support an energy transfer coil as well as a guiding mechanism including a lower linear guide and an upper linear guide arranged above each other and…

A transmit coil assembly (100, 200) configured to transmit two different alternating magnetic fields having different frequencies is provided. The transmit coil assembly (100, 200) includes a first transmit coil set (10, 10') configured to resonate within a first frequency range and a second…

A power transmission device having a surface a part of which defines a power transmission plane. The device includes: a power transmission coil structure including 2N planar coils laminated in a perpendicular direction to the power transmission plane and wirelessly transmitting AC power to a power…

A contactless power transmission device (1) is provided with: a washstand (10) that includes a primary coil (24); and an electric toothbrush (30) that includes a secondary coil (41), a rectifier circuit (42), and a feed control unit (43). The electric toothbrush (30) includes a first auxiliary coil…

There are provided a coil for cordless charging, which may be formed as a thin coil in spite of the presence of a plurality of coils included therein, and a cordless charging apparatus using the same. The cordless charging apparatus includes: a coil unit including coil substrates having a coil…

An antenna (200) and a mobile terminal (100) having the antenna are discussed. According to an embodiment, the antenna can include a flexible board (210) having a first region and a second region; a high frequency antenna pattern (220) formed in the first region of the flexible board to transceive…

There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one…

A noncontact power-transmission coil is provided. The noncontact power-transmission coil includes a planar coil and a printed-circuit board. The planar coil is formed by spirally winding a linear conductor made of a single or twisted wire in a substantially same plane. The printed-circuit board…

Wireless power supply and information communication are achieved between electronic circuit substrates in the electronic equipment, and the size of the means for achieving the above is reduced. There are provided a first electronic circuit substrate 2, a second electronic circuit substrate 4, a…

A super-thin PCB (Printed Circuit Board) transformer is manufactured by installing windings on a common PCB without using a magnetic core. A non-contact battery charger using the PCB transformer includes a converter for converting a supply voltage into a high frequency square wave and then applying…