The invention comprises a method for manufacturing an inductor, comprising the steps of: casting a first cast winding section; casting a second cast winding section; and mechanically coupling the first cast winding section to the second cast winding section to form a section of a winding about a core of the inductor. Optionally, a first end of a connector section is welded to the first cast winding section and a second end of the connector section is welded to the second cast winding section, where the first and second cast winding sections have a common cast shape.

In an embodiment a coil element includes a first core element and a first winding body arranged around a winding carrier part of the first core element with a winding axis, wherein the first winding body includes a first film conductor element and the first film conductor element includes a plurality of conductor films stacked on top of each other along a stacking direction and arranged electrically insulated from each other, wherein the stacking direction is parallel to the winding axis, and wherein the first core element includes a plurality of windings of the first film conductor element arranged in a spiral around the winding axis.

The present disclose provides a magnetic assembly and a power module. In one aspect, the magnetic assembly includes a magnetic core having a first magnetic leg and a second magnetic leg spatially separated from the first magnetic leg to define a spatial channel therebetween, and a winding assembly comprising a first winding, a second winding, and a third winding. The first and second windings are wound around the first magnetic leg with at least a part of the first and second windings being accommodated within the spatial channel. The third winding is wound around the first and second magnetic legs. The first winding is disposed between the first magnetic leg and the second winding. The second winding is disposed between the first winding and the third winding.

Electro-magnetic devices are provided, having conductive elements and leads of multiple thicknesses. Templates are provided for making electro-magnetic devices, formed by an extrusion process, a skiving process, a swaging process, 3D printing, or a machining process. The multi-thickness electro-magnetic devices may comprise a conductive element having an increased thickness area, and one or more leads having at least one decreased thickness area, having a thickness less than the increased thickness area. An electro-magnetic device may be provided comprising a conductive element having an increased thickness encased in a body formed from a core material, and leads or lead portions connected to the conductive element having a decreased thickness.

A method for producing a coil for a transformer, in particular for a medium frequency transformer for a resonant DC/DC converter or a dual active bridge DC/DC converter, is disclosed which: providing a plurality of M>1 conductive foil strips, each having a first ending and a second ending; stacking the plurality of conductive foil strips to obtain a foil strip stack having a first ending and a second ending, wherein an electrically insulating layer is provided between any two adjacent foil strips; electrically interconnecting the first endings of all conductive foil strips to a first terminal; for each of the conductive foil strips providing a connector at the second ending of the foil strip; and coiling up the foil strip stack from the first end.

A magnetic inlay for a component carrier includes a magnetic matrix and an electrically conductive structure embedded horizontally in the magnetic matrix. The electrically conductive structure is configured as an inductive element. The magnetic inlay is configured so that, depending on the geometrical properties of the electrically conductive structure, a specific inductance value is provided for the magnetic inlay.

A magnetic element. In some embodiments, the magnetic element includes a first electrically conductive coil, having a first annular surface and a second annular surface; a second electrically conductive coil, having a first annular surface and a second annular surface; and a spacer between the first electrically conductive coil and the second electrically conductive coil; a fluid inlet; and a fluid outlet. The spacer may have a first face, the first face being separated from the first annular surface of the first electrically conductive coil by a first gap; and a fluid path may extend from the fluid inlet to the fluid outlet through the first gap.

A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.

Provided are a coil capable of further improvement in heat dissipation performance and a method for manufacturing the same. A coil includes a helical structure formed of a hollow flat conductor.

The present disclosure relates to a coil assembly. According to a first embodiment of the present disclosure, there is provided a coil assembly including a coil including a multilayer film which is extended between a first longitudinal end and a second longitudinal end of the multilayer film, which are opposite to each other, and which is wound to form a plurality of loops which are substantially concentric, wherein the multilayer film includes: cut edges which are extended between the first longitudinal end and the second longitudinal end, and are opposite to each other and are substantially parallel to each other; a metal layer; and a magnetic layer disposed on the metal layer, wherein, at one or more of the first longitudinal end and the second longitudinal end of the multilayer film, the metal layer is electrically connected to a conductive terminal.