Abstract: An underfloor transformer includes a layered transformer core and at least one electrical winding through which the transformer core extends along a limb axis. In each of two axial end regions of the transformer core, a securing device, which interacts with the transformer core mechanically, is provided. The securing devices are configured for such tensile force stressing. The underfloor transformer can be carried suspended therefrom.

Abstract: A magnetic substrate has such a shape that ridges extending between principal surfaces are cut away by cutout portions. A multilayer body has corners arranged so as to overlap the cutout portions. A coil includes lead portions which are connected with both ends of a coil portion and which are drawn out to the corners. A coil is combined with the coil to constitute a common mode choke coil and includes lead portions which are connected with both ends of a coil portion and which are drawn out to the corners. Connecting portions connect external electrodes to the lead portions and are provided at the cutout portion.

Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method includes ultrasonically consolidating a plurality of sheets of a conductive material to form a consolidated structure and machining one or more conductive channels into the consolidated structure to form an inductor.

Abstract: A contactless energy transfer circuit, comprising a magnetic receiving element (EMO) comprising a reactance receiving element (L4) configured to receive magnetic field energy from an integrated reactance module comprising a magnetic element (EM) and a plurality of coaxial windings of reactance power elements (L1), (L2) . . . (LN), separated from each other by means of magnetic flux conductors (SM) constituting an integral part of the magnetic element (EM), which is configured to concentrate magnetic field lines generated by the reactance power elements (L1), (L2) . . . (LN), wherein the outermost winding of reactance power elements (L2) is situated outside the magnetic element (EM) and the other windings of reactance power elements (L1), (L3) . . . (LN) are situated inside the magnetic element (EM), wherein the magnetic receiving element (EMO) is separated from the magnetic element (EM) by an insulating spacer (I).

Abstract: Disclosed herein is a multilayer inductor. The multilayer inductor according to an exemplary embodiment of the present invention includes a laminate on which a plurality of body sheets are multilayered; a coil part configured to have internal electrode patterns formed on the body sheet; a first gap made of a non-magnetic material located between the multilayered body sheets; a second gap made of a dielectric material located between the multilayered body sheets and located on a layer different from the first gap; and external electrodes formed on both surfaces of the laminate and electrically connected with both ends of the coil part. By this configuration, the exemplary embodiment of the present invention can remarkably improve DC biased characteristics without reducing breaking strength of the inductor.

Abstract: There is provided a multi-layered chip electronic component including: a multi-layered body including a 2016-sized or less and a plurality of magnetic layers; conductive patterns electrically connected in a stacking direction to form coil patterns, within the multi-layered body; and non-magnetic gap layers formed over a laminated surface of the multi-layered body between the multi-layered magnetic layers and having a thickness Tg in a range of 1 ?m?Tg?7 ?m, wherein the number of non-magnetic gap layers may have the number of gap layers in a range between at least four layers among the magnetic layers and a turns amount of the coil pattern.

Abstract: The invention relates to a current transformer 1, comprising connection contacts 3 for contacting a secondary winding of the current transformer and a short-circuit device 105, 205, 305 for shorting the connection contacts 3, wherein the connection contacts 3 can be reached through a housing opening 4 of a housing 2 surrounding the current transformer 1, the current transformer also having a safety device 107, 207, 307 for blocking the access to the connection contacts 3 lying inside the housing, wherein the safety device 107, 207, 307 can be in a securing status or release status, and wherein the access to the connection contacts 3 is blocked by the safety device 107, 207, 307 in the securing status, such that the connection of a conductor to a connection contact 3 or the disconnection of a conductor from a connection contact 3 is not possible, and wherein the access to the connection contacts 3 is released by the safety device in the release status and the short-circuit device 105, 205, 305 shorts the co

Abstract: A magnetic assembly to receive current having a high current and high frequency includes a transformer, at least one resonant inductor, and at least one auxiliary inductor. The resonant inductor is in electrical communication with the transformer, and the auxiliary inductor is in electrical communication with the resonant inductor. The magnetic assembly further includes at least one conductor having a first end coupled to the auxiliary inductor and a second end coupled to the transformer. The conductor extends continuously between the first and second ends without terminating to form an auxiliary winding of the auxiliary inductor, a resonant winding of the resonant inductor, and at least one primary winding of the transformer.

Abstract: A coil component is of the type where a helical coil is directly contacting a magnetic body where such coil component still meets the demand for electrical current amplification. The coil component is structured in such a way that a helical coil is covered with a magnetic body. The magnetic body is mainly constituted by magnetic alloy grains and does not contain glass component, and each of the magnetic alloy grains has an oxide film of the grain on its surface.

Abstract: A coil component includes a substrate, a planar spiral conductor formed on a top surface of the substrate, a lead conductor connected to an outer peripheral end of the planar spiral conductor, a dummy lead conductor formed on the top surface of the substrate between an outermost turn of the planar spiral conductor and an end of the substrate and free from an electrical connection with another conductor within the same plane, external electrodes and arranged in parallel with the top surface of the substrate, and a bump electrode formed on a surface of the lead conductor and connects the lead conductor with the external electrode. The external terminals have a larger area than the bump electrodes for securing a bonding strength.

Abstract: A reactor includes an annular core, coils, a sensor detecting a state of the reactor, and a connector outputting signal from the sensor. Resin-molded bodies are provided around the annular core. The resin-molded body has bobbins for the respective coils and core covering portions formed integrally with each other. An exposed area where no resin covers the bottom of the core is formed in the lower face of the covering portions. A holder to fasten the connector is formed integrally with the upper portion of the covering portion. An assembly including the resin-molded bodies in which the annular core is embedded, and the coils wound around the bobbins are retained in a metal casing. A clearance is formed between the assembly and the casing, and a filler is filled in this clearance. The filler covers the exposed area of the core bottom.

Abstract: A laminated inductor may include a body having a plurality of ceramic layers stacked therein, a plurality of conductive patterns formed on the ceramic layers, and via electrodes disposed between the ceramic layers and connecting the conductive patterns disposed in a vertical direction to form a coil. Each of the conductive patterns may include a plurality of unit patterns disposed in parallel to be spaced apart from each other on each of the ceramic layers.

Abstract: A resin-mold core includes right and left leg portions, and a yoke portion interconnecting those. The resin-mold core includes a magnetic core, and a mold component having the magnetic core embedded therein by molding. Openings where the magnetic core in the mold component is exposed are formed in multiple faces of the mold component that are upper, lower, front, rear, and right and left faces. A part of the yoke portion of the resin-mold core corresponding to a location where terminals are drawn to the exterior of the core from coils attached to the outer circumferences of the leg portions of the core has no opening formed in the multiple faces of the mold component. Positioning members to coaxially align the leg portions of the opposing resin-mold core are formed in abutting faces of the leg portions of the resin-mold core.

Abstract: An energy transfer assembly includes first and second windings wound around a bobbin. The first winding has a first number of layers proximate to a first end and a second number of layers proximate to a second end of the bobbin. The second winding has a third number of layers proximate to the first end and a fourth number of layers proximate to the second end. At least a portion of one of the first and second windings overlaps at least a portion of the other one of the first and second windings. A degree of overlap between the first and second windings is non-uniform. An isolation barrier is between the first and second windings and around the bobbin. A distance between the isolation barrier and an axis of the bobbin varies along the length of the bobbin.

Abstract: A subsea transformer that includes a transformer and a transformer tank adapted to accommodate the transformer is provided. The transformer tank has an opening that is sized so as to enable insertion of the transformer into the transformer tank through the opening. A closing plate is adapted to close the opening of the transformer tank. At least one component having a double barrier against ingress of an ambient medium surrounding the subsea transformer when installed subsea is mounted to the closing plate.

Abstract: A coil unit in which impact resistance is ensured and that has a magnetic body for heating prevention. The coil unit (the power receiving coil unit) includes a winding wire (the winding wire portion) and a magnetic body, wherein in the magnetic body, a plurality of individual pieces with two principle surfaces opposing in a thickness direction are disposed in rows and columns in a direction substantially orthogonal to the thickness direction, and the two principle surfaces are in a polygonal shape and all interior angles forming a polygon are obtuse angles (except for a right angle).

Abstract: A core member (2) of the disclosed reactor (Da) comprises a magnetic wire material and is arranged outside a plurality of coils (1). As the core member (2) in the reactor (Da) having this structure is a wire material and is arranged outside the plurality of coils (1), the core member (2) can be formed by the winding of the wire material, simplifying manufacturing.

Abstract: A magnetic fault current limiter core (10a) comprising at least one first magnetic element (12) and at least one second magnetic element (14), the magnetic elements (12,14) being arranged to define a substantially parallel array of magnetic elements (12,14), the or each first magnetic element (12) including a soft magnetic material and the or each second magnetic element (14) including a hard magnetic material, wherein the or each soft magnetic material in a non-saturated state has a higher magnetic permeability than the or each hard magnetic material.

Abstract: A reactor includes a coil and a core unit having partial cores butted against one another to form a closed magnetic path. The partial cores include a first partial core forming and a second partial core. The first partial core is inserted in the hollow of the coil. A pressed face of the first partial core is oriented orthogonal to the winding axis direction of the coil. The second partial core is butted against the first partial core. A pressed face of the second partial core is oriented orthogonal to a direction different from the winding axis direction. The pressed face of the second partial core is a substantially flat plane.

Abstract: A rolled-up transformer structure comprises a multilayer sheet having a rolled configuration comprising multiple turns about a longitudinal axis. The multilayer sheet comprises more than one conductive pattern layer on a strain-relieved layer, including a first conductive film and a second conductive film separated from the first conductive film in a thickness direction. The first conductive film comprises an even number of primary conductive strips, where each primary conductive strip has a length extending in the rolling direction, and the second conductive film comprises an even number of secondary conductive strips, where each secondary conductive strip has a length extending in the rolling direction. In the rolled configuration, turns of the primary conductive strips and turns of the secondary conductive strips wrap around the longitudinal axis. The primary conductive strips serve as a primary winding and the secondary conductive strips serve as a secondary winding of the rolled-up transformer structure.