A device comprises a plurality of power converters, a resonator block and a connection block. The plurality of power converters is coupled to a power port having a voltage. Each power converter comprises a plurality of switch networks, and each switch network has a plurality of power switches. The resonator block comprises a plurality of resonators. Each resonator has a resonant capacitor and is coupled to one of the plurality of power converters. The connection block comprises a switching component and is coupled to one of the plurality of resonators, and the connection block and the said resonator are configured such that the device operates in a wireless charging mode with the resonator block activated or a wired charging mode with the connection block activated.

A shielded inductor and a method of making a shielded inductor are provided. The shielded inductor includes a core body surrounding a conductive coil, leads in electrical communication with the coil, and a shield covering at least parts of the outer surface of the core body. An insulating material may be provided between parts of the core body and parts of the shield. A method of making a shielded inductor is also provided.

A magnetic shielding film includes opposing first and second major surfaces and a plurality of particles dispersed therebetween, each particle having a magnetic permeability, a thickness H along a thickness direction of the particle, and a longest dimension L along a length direction of the particle orthogonal to the thickness direction, L/H greater than or equal to 2, the particles defining a plurality of voids therebetween, the length directions of at least 60% of the particles oriented within 5.5 degrees of a same orientation direction.

A wireless charging apparatus according to an embodiment may improve both the charging efficiency and the heat dissipation characteristics by use of a three-dimensional structure in a magnetic portion. In detail, the wireless charging efficiency may be increased and heat generated from the magnetic portion may be lowered by increasing the thickness of the magnetic portion near a coil portion, where electromagnetic energy is concentrated during wireless charging, and by reducing the thickness of the magnetic portion in the center, where the density of the electromagnetic energy is relatively low. Accordingly, the wireless charging apparatus can be efficiently used in a mobile means such as an electric vehicle that requires transmission of a large amount of power between a transmitter and a receiver.

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 method of operating a motor includes providing an electric system coupled with the motor, the electric system including parallel inverter legs; subjecting the motor to a first interleaving angle when the electric system is under a first condition; and subjecting the motor to a second interleaving angle different from the first interleaving angle when the electric system is under a second condition; wherein the steps of subjecting the motor to the first interleaving angle and subjecting the motor to the second interleaving angle occur within continuous operation of the electric system and the motor.

A magnetic film includes iron and copper distributed between opposing first and second major surfaces of the magnetic film. The copper has a first atomic concentration C1 at a first depth d1 from the first major surface and a peak second atomic concentration C2 at a second depth d2 from the first major surface, d2>d1, C2/C1≥5.

An inductive component is provided, including: a wire winding, around which a magnetic foil is wrapped; an electrical shielding, which surrounds the magnetic foil, the magnetic foil including at least one magnetic layer, the at least one magnetic layer including a magnetic material, and the magnetic material being a nanocrystalline iron alloy; and a non-magnetic and non-conductive insulating layer, which includes a plastic and which is disposed between the magnetic foil and the wire winding. A method for adjusting an inductance value of an inductive component is also provided.

An antenna, in particular a magneto-inductive antenna, for a hearing instrument as well as a hearing instrument having such an antenna are provided. The antenna has a first antenna surface and a second antenna surface, which are respectively formed from a flexible magnetic foil. The antenna furthermore has a base, which is formed from a magnetic material or contains a magnetic layer, and which connects the two antenna surfaces to one another. The two antenna surfaces are angled off from the base in the same direction. Lastly, the antenna contains an antenna winding which has at least one first monolayer spiral coil and is arranged, in particular applied, externally on the first antenna surface so that an axis of the first spiral coil is oriented perpendicularly with respect to the first antenna surface.