The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, a first metal winding and a second metal winding. A first wiring layer, a first insulating layer and a second wiring layer are sequentially disposed on the magnetic core from the outside to the inside; the first metal winding is formed on the first wiring layer and winded around the magnetic core in a foil structure; the first insulating layer is at least partially covered by the first metal winding; a second metal winding is formed on the second wiring layer and winded around the magnetic core in a foil structure, wherein the second metal winding is at least partially covered by the first insulating layer, and is at least partially covered by the first metal winding.

A medical device includes: an implantable unit configured to be at least partly implanted in the body of a user; a transformer core configured to be arranged at least partly under the skin of the user; and an internal cabling configured to connect the implantable unit to the transformer core. The internal cabling includes a first winding around the transformer core; and an external unit configured to be at least partly arranged outside the body of the user, the external unit including: a power supply circuity and a connector coupled to the power supply circuity configured to supply power from the power supply circuity to the implantable unit via the transformer core. The connector includes a first connector part and a second connector part.

The invention relates to a high-voltage transformer which is configured as a toroidal transformer. The high-voltage transformer has a magnetizable core (310) and a high-voltage winding (330) and a low-voltage winding (320) around the magnetizable core (310). The high-voltage winding (330) is embodied at least partially as a pilgrim step winding.

In one implementation, a matching network is provided comprising a pair of input terminals; a pair of output terminals; and at least two reactive components disposed between the pair of input terminals and the pair of output terminals. At least one of the reactive components comprises a coupled-inductor. In various implementations, the second reactive component can be a capacitor, and the capacitor can be at least partially realized using the parasitic capacitances of the environment. The matching network may be disposed in a capacitive wireless power transfer (WPT) system. In other implementations, inductors and coupled-inductors are further provided. In some implementations, for example, an inductor, such as but not limited to a coupled-inductor, may comprise a toroidal or semi-toroidal core comprising foil wire interleaved without notches.

A structure for forming inductor windings includes a first portion and a second portion of a clamshell casing. The first portion includes a first set of electrically conductive segments, a first inner carrier, and a first outer carrier. The second portion includes a second set of electrically conductive segments, a second inner carrier, and a second outer carrier. An inductor core is mountable between the first inner carrier and the first outer carrier within the first portion. A control assembly aligns and joins the first portion to the second portion of the clamshell casing such that the first set of electrically conductive segments arranged in the first pattern that correspond to first half-turns of the inductor windings, are attached to the second set of electrically conductive segments arranged in the second pattern that correspond to second half-turns of the inductor windings, to form continuous turns around the inductor core.

A semiconductor device includes a semiconductor substrate and an interconnect structure over the semiconductor substrate. The interconnect structure includes a magnetic core and a conductive coil winding around the magnetic core and electrically insulated from the magnetic core. The conductive coil includes horizontally-extending conductive lines and vertically-extending conductive vias electrically connecting the conductive lines.

A magnetic module includes: a magnetic core; and plural enameled wires wound on the magnetic core, the enameled wire being wound on the magnetic core to form a primary coil and a secondary coil, the primary coil including a first group of enameled wires and a second group of enameled wires, the secondary coil including a third group of enameled wires and a fourth group of enameled wires, wherein the parts of the first group of enameled wires and the fourth group of enameled wires wound around the magnetic core are twisted together to form a first stranded wire, the parts of the second group of enameled wires and the third group of enameled wires wound around the magnetic core are twisted together to form a second stranded wire, and the first stranded wire and the second stranded wire are twisted together to form a total stranded wire.

A magnetic module includes: a magnetic core; and plural enameled wires wound on the magnetic core, the enameled wire being wound on the magnetic core to form a primary coil and a secondary coil, the primary coil forming a primary input end, a primary output end, and a primary center tap, the secondary coil forming a secondary input end, a secondary output end, and a secondary center tap, wherein one of the primary coil and the secondary coil includes four groups of enameled wires, and the other includes one group of enameled wires.

In a method of manufacturing an embedded magnetic component, a cavity is formed in an insulating substrate. One or more drops of adhesive are applied to the cavity and a magnetic core is inserted in the cavity. The cavity and the magnetic core are then covered with a first insulating layer. Through holes are formed through the first insulating layer and the insulating substrate, and plated up to form conductive vias. Metallic traces are added to exterior surfaces of the first insulating layer and the insulating substrate to form upper and lower winding layers. The metallic traces and the conductive vias form the windings for an embedded magnetic component, such as a transformer or an inductor.

Provided is a current detector capable of easily increasing the current measurement accuracy even if the winding thickness of the coil winding wire is not uniform. The current detector is a magnetic balance type current detector with a ring-shaped coil fixed in an outer case. The coil contains a magnetic core and a ring-shaped core housing case that houses the magnetic core. The outer case has an insertion hole inside, through which a conductor is inserted, and has a coil housing space. The core housing case has a first protrusion and a second protrusion that abuts on an inner wall surface of the coil housing space to form a gap between the inner wall surface and the coil and that positions the magnetic core and the conductor attached to the insertion hole of the outer case orthogonally to each other.