The disclosure concerns a magnetic component and a power converter including the same. The magnetic component includes at least one magnetic core, where at least one gap is formed between end surfaces, especially opposing end surfaces, of the magnetic core(s). The magnetic component further includes at least one electrical winding surrounding at least a part of the at least one magnetic core, and a shielding device for shielding fringing fields of the at least one gap. The shielding device includes: a holding unit attached to the at least one magnetic core and/or to the at least one electrical winding in a periphery of the at least one gap; and at least one shield member attached to the holding unit. The at least one shield member is configured to shield gap fringing fields in the periphery of the gap.

A power transmitter for wireless power transfer includes a control and communications unit, a vehicular power input regulator, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.

Disclosed is a method of manufacturing a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field. The method includes preparing a substrate, forming a coil on the substrate, and forming a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts as an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part is formed through at least one of electroless plating, electro-plating, deposition, and printing.

A coil electronic component includes a magnetic body in which internal coil parts are embedded, and a metal shielding sheet disposed on at least one of an upper portion and a lower portion of the magnetic body in a thickness direction, in which permeability of the metal shielding sheet is 100 times or higher than permeability of magnetic metal powder contained in the magnetic body.

A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face. The power transmitter further includes a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. The power transmitter includes at least one magnet, the at least one magnet configured to attract at least one receiver magnet when a power receiver is proximate to a surface associated with the power transmitter.

A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.

A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with one or more wireless power transmitting coils for transmitting wireless power signals. The wireless power receiving device may be a portable electronic device with one or more wireless power receiving coils for receiving the transmitted wireless power signals. The wireless power transmitting device may have foreign object detection coils. Q-factor measurements may be made on the transmitting coil during wireless power transmission and/or voltage measurements may be made using the foreign object detection coils to detect whether a foreign object is present. The foreign object detection coils may include overlapping coils with different winding patterns to enhance foreign object detection coverage.

Electronic devices according to embodiments of the present technology may include a battery. The devices may include a nanocrystalline foil. The devices may include a wireless charging coil seated on the nanocrystalline foil. The devices may also include an integrated circuit configured to operate the wireless charging coil in a wireless charging transmission mode.

A hearing device has a housing in which a receiver is arranged as an electrical component. An antenna arrangement is formed, which has a winding in the form of a coil, which is arranged around the receiver with the interposition of a shielding foil. The shielding foil has a section extending around the receiver and several lugs adjoining it, which project beyond the receiver, the lugs enclosing between them an interspace adjoining the receiver. The shielding foil has in particular two layers, namely a magnetic layer and an electrical shielding layer. By this arrangement an antenna arrangement with high sensitivity is formed and at the same time a shielded partial area is created in the inter-space in which further components can be arranged. Due to the design of the lugs, which are particularly flexible, they can be attached to an inner wall of a housing.

According to one or more embodiments, a wireless charge coil for wireless charging of a portable terminal includes an installation member, and a conducting wire portion arranged at the installation member, wherein the conducting wire portion comprises a conductor and a magnetic material plating layer arranged on at least one surface of the conductor, and wherein the magnetic material plating layer has a thickness of about 1 .Math.m to about 8 .Math.m.