According to some implementations, an apparatus for transmitting charging power wirelessly to a load is provided. The apparatus comprises at least one ferrite structure comprising a first ferrite portion, a second ferrite portion comprising at least a first ferrite leg, a second ferrite leg, and a third ferrite leg, each physically separated from the first ferrite portion by a first distance, and a third ferrite portion positioned between the second ferrite leg and the first ferrite portion and physically contacting the second ferrite leg. The at least one ferrite structure further comprises a coil wound around the second ferrite leg and configured to generate an alternating current under influence of an alternating magnetic field.

A method of manufacturing a winding-type coil component, wherein at the time of manufacturing the winding-type coil component, the method can efficiently form an inclined external electrode, can change inclination of an external electrode, and can satisfy a demand for the manufacture of plural kinds of winding-type coil components provided with external electrodes having different inclination angles respectively.

A method of manufacturing a winding-type coil component, wherein at the time of manufacturing the winding-type coil component, the method can efficiently form an inclined external electrode, can change inclination of an external electrode, and can satisfy a demand for the manufacture of plural kinds of winding-type coil components provided with external electrodes having different inclination angles respectively.

A ceramic core, which is made of a ferrite material including Ni and Zn, includes an axial core extending in a length direction and a pair of flange portions disposed at both ends of the axial core in the length direction. The dimension L of the ceramic core in the length direction satisfies 0 mm<L≦1.1 mm. The surface roughness of a ridge portion of the axial core is less than or equal to 2.5 μm.

A ceramic core, which is made of a ferrite material including Ni and Zn, includes an axial core extending in a length direction and a pair of flange portions disposed at both ends of the axial core in the length direction. The dimension L of the ceramic core in the length direction satisfies 0 mm<L≦1.1 mm. The surface roughness of a ridge portion of the axial core is less than or equal to 2.5 μm.

An insulation wire includes a conductor, a first insulating layer formed in an outer surface of the conductor, and a second insulating layer formed in an outer surface of the first insulating layer. In the insulation wire, the first insulating layer is a thermoplastic resin layer that is made of polyphenylene sulfide or polyether ether ketone, and the second insulating layer is a thermosetting resin layer.

An insulation wire includes a conductor, a first insulating layer formed in an outer surface of the conductor, and a second insulating layer formed in an outer surface of the first insulating layer. In the insulation wire, the first insulating layer is a thermoplastic resin layer that is made of polyphenylene sulfide or polyether ether ketone, and the second insulating layer is a thermosetting resin layer.

The invention relates to an apparatus for providing vehicles with energy by magnetic induction. The apparatus has a primary side electric conductor and a field shaping layer. The invention also relates to a composite layer for shaping magnetic field lines of an electromagnetic field generated by an electric conductor. The composite layer includes a continuous supporting layer and a plurality of elements made of magnetizable material. Finally, the invention relates to a method of generating an apparatus for providing vehicles with energy by magnetic induction.

The invention relates to an apparatus for providing vehicles with energy by magnetic induction. The apparatus has a primary side electric conductor and a field shaping layer. The invention also relates to a composite layer for shaping magnetic field lines of an electromagnetic field generated by an electric conductor. The composite layer includes a continuous supporting layer and a plurality of elements made of magnetizable material. Finally, the invention relates to a method of generating an apparatus for providing vehicles with energy by magnetic induction.

A rotary transformer for an electrical machine includes a rotary printed circuit board and a stator printed circuit board. The rotary printed circuit board is operatively connected to the stator printed circuit board for relative rotation with respect to the stator printed circuit board. A conductor is fixed to the one of the printed circuit boards and includes a spiral coil for transferring electrical energy between the rotary printed circuit board and stator printed circuit board.