A sound wave treatment device for medical treatment using compression waves, in particular for lithotripsy, includes a sound wave generator, a plurality of piezo elements that are coupled to the sound wave generator, and, an electrical high voltage unit that is set up for supplying the piezo elements with high electrical voltage. The high voltage unit has a blocking converter unit having a transformer, wherein the transformer has a primary coil, a high voltage coil, and spacers, wherein the high voltage coil has a plurality of high voltage windings that are embedded in an insulating mass and are positioned using the spacers such that adjacent high voltage windings are at a defined distance (a) from one another due to the spacers.

The present invention relates to a planar converter, comprising: a magnetic unit comprising a first planar winding and two second planar windings magnetically coupled to each other and a magnetic core assembly; two closed circuits each comprises the first planar winding, a switch, and has a first connection point and a second connection point; two PCBs each provided with at least one of the closed circuits thereon; and two first connectors each comprising two welding ends opposite to each other, wherein the two welding ends of one of the two first connectors are connected to the first connection points of the two closed circuits, respectively, and the two welding ends of another one of the two first connectors are connected to the second connection points of the two closed circuits, respectively, and the two closed circuits are connected in parallel.

A coil component includes a cup, a magnetic core, an electric conductor wound around the core, a cover, which closes the cup, and electric terminal contacts, which are in electric contact with ends of the electric conductor. The core and the electric conductor are arranged in the cup and the cup is filled with potting compound.

A method of forming a magnetic core on a substrate having a stacked inductor coil includes etching a plurality of polymer layers to form at least one feature through the plurality of polymer layers, wherein the at least one feature is disposed within a central region of a stacked inductor coil formed on the substrate; and depositing a magnetic material within the at least one feature.

A transformer bobbin includes a first bobbin member including a first end defining a first opening, a second end defining a second opening, an inner surface defining the first opening and an outer surface. The inner surface includes a first plurality of fins that extend between the first end and the second end. A second bobbin member is disposed about and spaced from the first bobbin member. The second bobbin member includes a first end portion defining a first opening portion, a second end portion, an inner surface portion and an outer surface portion. One of the outer surface of the first bobbin member and the outer surface portion of the second bobbin member includes a second plurality of fins that extend between the first end portion and the second end portion.

A noise filter includes a capacitor and a common mode choke coil. The noise filter is connected between a first power conversion device configured to perform a switching operation at a first frequency and a second power conversion device configured to perform a switching operation at a second frequency higher than the first frequency. The common mode choke coil includes a core, and a first winding wire and a second winding wire wound around the core. The common mode choke coil has an inductance which is set such that a resonant frequency of the noise filter when the core is magnetically saturated is higher than the first frequency and lower than the second frequency.

An electronic component includes a plurality of laminated insulating layers, one or more surface conductors formed on a surface of the insulating layer, and an internal conductor formed at a boundary portion between the adjacent insulating layers. A thickness of the surface conductor is larger than a thickness of a thinnest layer of the insulating layers and larger than a thickness of the internal conductor.

An inductor includes an annular core, and a first coil and a second coil which are wound around the core. The core has an internal surface, an external surface, a first end surface, and a second end surface. The first coil and the second coil include a first coil piece having a length of one turn and a second coil piece having a length of one turn. The first coil piece and the second coil piece surround the internal surface, the first end surface, the external surface, and the second end surface of the core. The first coil piece has, at its tip, a joint portion to be joined to the second coil piece, and the second coil piece has, at its tip, a joint surface to be in contact with the joint portion. Thus, the resistance value of the coil is reduced.

A common mode choke coil includes: a magnetic core; and a pair of coils wound on a winding portion of the magnetic core, wherein the pair of coils include a first pole coil and a second pole coil which are each wound on the winding portion in a spiral shape by N turns, and wherein the first pole coil and the second pole coil are arranged on the winding portion so that one or more turns of the N turns are adjacent to each other, and each include a parallel running portion and a non-parallel running portion, the first pole coil and the second pole coil overlapping each other in the parallel running portion, and separating from each other in the non-parallel running portion in at least one turn of the adjacent first pole coil and second pole coil as viewed from the length direction of the winding portion.

The present disclosure relates to an electromagnetic induction film and a manufacturing method thereof, an electromagnetic induction panel and a manufacturing method thereof, and a touch display device. The method for manufacturing the electromagnetic induction film may include: arranging a plurality of first conductors in parallel along and spaced apart along a first direction on a substrate; arranging an insulating layer on the plurality of first conductors; arranging a plurality of second conductors in parallel and spaced apart along the first direction on the insulating layer; and electrically connecting head end areas of the first conductors to head end areas of the second conductors and electrically connecting tail end areas of the first conductors to tail end areas of the second conductors to form an electromagnetic induction coil spirally surrounding the insulating layer.