Abstract: The inventors have newly found that, even when a composition of a first element body portion and a composition of a second element body portion are different from each other, a high bonding strength at an interface between the first element body portion and the second element body portion can be obtained when both the first element body portion and the second element body portion contain Zn2SiO4 as a constituent component. That is, when the first element body portion and the second element body portion contain Zn2SiO4, a bonding strength at the interface is improved compared to a case in which the first element body portion and the second element body portion do not contain Zn2SiO4.

Abstract: Described are microelectronic devices including an embedded microelectronic package for use as an integrated voltage regulator with a microelectronic system. The microelectronic package can include a substrate and a magnetic foil. The substrate can define at least one layer having one or more of electrically conductive elements separated by a dielectric material. The magnetic foil can have ferromagnetic alloy ribbons and can be embedded within the substrate adjacent to the one or more of electrically conductive elements. The magnetic foil can be positioned to interface with and be spaced from the one or more of electrically conductive element.

Abstract: A leakage transformer includes a secondary coil wound around a leg member of a core, and a primary coil wound around the leg member outside of the secondary coil. Between the primary coil and the secondary coil, (i) spacers of non-magnetic members and (ii) bypass cores that are magnetic members to induce therein a portion of magnetic flux generated in the core are arranged. The bypass cores are arranged with gaps therebetween in a direction of the internally induced magnetic flux. A total value of the gaps between the bypass cores is determined in accordance with a target value of leakage inductance. A maximum value of the gaps between the bypass cores is less than or equal to a value obtained by multiplying a minimum value of gaps between the bypass cores and each of the primary coil and the secondary coil by a positive coefficient less than one.

Abstract: An electric current transformer including a first coil and a second coil, which are produced with a first printed circuit including a first positioning device, and a second positioning device; and a first magnetic part including a first holding device and a second magnetic part including a second holding device, the positioning device being arranged to join together with the holding device so as to hold reference faces of the magnetic parts a predetermined distance away from the turns of the first and second coils. A current measurement unit includes such a current transformer.

Abstract: An inductive component has at least one conductor loop arranged on a printed circuit board and at least one core made of inductive material that cooperates inductively with the conductor loop. The printed circuit board comprises an upper face, a lower face and narrow faces, and moreover at least two printed circuit board parts. Each printed circuit board part has a part of the at least one conductor loop. At least one of the printed circuit board parts comprises a first and a second contact portion. The first contact portion is connected to a first face, in particular the upper face, of the second printed circuit board part and the second contact portion is connected to a second face, in particular the lower face, of the second printed circuit board part, which second face is different from the first face.

Abstract: A coil component includes a body including a plurality of pattern layers and a via electrode layer connecting the respective conductive pattern layers to each other, and external electrodes disposed on an external surface of the body. A cross-sectional shape of the via electrode layer is divided into an upper region and a lower region, a side surface of the upper region has a tapered shape, and a lower surface of the lower region includes a curved portion.

Abstract: An inductor includes a coil configured in an open loop topology with a first multi-finger end and a second multi-finger end, wherein the fingers of the first end are disposed in interdigitating fashion with the fingers of the second end, and laid out on a first metal layer of a multi-layer structure; a plurality of pairs of metal strips laid out on a second metal layer of the multi-layer structure, wherein each of said plurality of pairs of metal strips comprises a first metal strip intersecting the first multi-finger end as seen from a top view and connecting to the first multi-finger end through a first set of vias, and a second metal strip intersecting the second multi-finger end as seen from the top view and connecting to the second multi-finger end through a second set of vias.

Abstract: Auto-balancing transformers are disclosed for balancing a multi-phase electrical system by varying the degree of electromagnetic coupling between primary and secondary windings. The auto-balancing transformer includes a movable armature to selectively couple primary phases with two or fewer phases of the secondary system.

Abstract: An integrated transformer includes a primary winding and a secondary winding each having a spiral planar arrangement coils. A dielectric portion of dielectric material is interposed between the primary winding and the secondary winding. A field plate winding is electrically coupled with the primary winding. The field plate winding includes at least one field plate coil having a first lateral extension greater than a second lateral extension of a primary outer coil of the primary winding. The field plate coil is superimposed in plan view to the primary outer coil of the primary winding.

Abstract: A multilayer coil component includes a body including laminated ferrite layers, a coil conductor including conductive layers laminated in the body, and a pair of outer electrodes. Each of the outer electrodes is electrically connected to a corresponding one of end portions of the coil conductor. At least one of the conductive layers has a constricted portion at an end portion thereof. Each of the conductive layers includes a first conductive layer and a second conductive layer. The first conductive layer has a thickness different from the second conductive layer.

Abstract: An inductor includes a body in which a plurality of insulating layers on which a plurality of coil patterns are arranged are stacked, and first and second external electrodes disposed on an external surface of the body, wherein the plurality of coil patterns are connected through coil connecting portions and include coil patterns disposed on an outer side and coil patterns disposed on an inner side thereof, a coil pattern disposed on the inner side adjacent to the coil pattern disposed on the outer side includes two coil connecting portions spaced apart from each other and facing each other in a length direction of the body, and a dummy electrode pattern is further disposed in a void portion between two coil connecting portions.

Abstract: A coil electronic component includes a body and external electrodes disposed on an external surface of the body. The body includes a support member including a through-hole, upper and lower coils supported by the support member and including a plurality of coil patterns, a via connecting the upper and lower coils to each other, and an insulating wall supported by the support member and insulating adjacent coil patterns from each other. The via is formed on at least a portion of a interface of the through-hole.

Abstract: An ignition coil includes a primary coil, a secondary coil, a primary bobbin, a secondary bobbin, a center core, and a mold resin. The center core has a pair of collar portions protruding from a main body of the center core respectively to opposite sides in a protruding direction. The primary bobbin has a collar portion at least partially sandwiched between the collar portions of the center core and the secondary bobbin in a coil axial direction. The collar portion of the primary bobbin includes an overlapping portion that overlaps the collar portions of the center core in the coil axial direction and is bonded to the collar portions. The primary bobbin is formed of a thermoplastic resin and dispersed-phase particles dispersed in the thermoplastic resin. In the overlapping portion of the primary bobbin, there is formed a specific separating layer that separates adjacent layers in the coil axial direction.

Abstract: A power module and a manufacturing method thereof are disclosed. The power module includes a magnetic component, a bare power chip and a conductive set. The magnetic component includes a first surface and a second surface opposite to each other. The bare power chip is disposed on the magnetic component and includes a third surface and a fourth surface opposite to each other. The conductive set is disposed on the magnetic component and electrically connected with the magnetic component and the bare power chip. The third or fourth surface of the bare power chip is at least partially attached on the first or second surface of the magnetic component, and at least partially included in a projected envelopment of the corresponding first or second surface of the magnetic component, so as to facilitate the magnetic component to support the bare power chip.

Abstract: Provided is a power inductor. The power inductor includes a body including magnetic powder and a polymer, at least one base provided in the body and having at least one surface on which at least one coil pattern is disposed, and an insulation layer disposed between the coil pattern and the body. The body includes at least region in which the magnetic powder having a particle size different from that of the magnetic power in a remaining region is distributed.

Abstract: The application invention generally deals with a double-pole voltage transformer enclosed in a tight enclosure made in the form of a resin cast comprising a central element integrated with a base and comprising circumferential sheds and two bushings situated above the circumferential sheds on the central element. The central element has the form of a circular cylinder situated with its side wall horizontally on the base plane, and the circumferential sheds are situated around the central element only in the area of the contact between the central element and the base, and above the circumferential sheds there are side elements of the cast forming side sheds, and above the side sheds there is situated a circumferential top shed surrounding a fragment of the side surface of the central element, and the bushings are detachably joined with the central element through projections respectively.

Abstract: An inductor includes a body in which a plurality of insulating layers on which a plurality of coil patterns are respectively disposed are stacked, and first and second external electrodes disposed on an external surface of the body. The plurality of coil patterns are connected to each other by coil connecting portions and opposing ends thereof are connected to the first and second external electrodes through coil lead portions, respectively, to form a coil. The plurality of coil patterns include coil patterns disposed on outermost sides of the body and coil patterns disposed on an inner side thereof. The coil patterns arranged on the inner side are connected in parallel. At least one of gaps between the coil patterns arranged on the inner side is greater than a gap between other remaining coil patterns.

Abstract: A magnetic core includes a nanocrystalline alloy ribbon having a composition represented by FeCuxBySizAaXb, where 0.6?x<1.2, 10?y?20, 0?(y+z)?24, and 0?a?10, 0?b?5, all numbers being in atomic percent, with the balance being Fe and incidental impurities, and where A is an optional inclusion of at least one element selected from Ni, Mn, Co, V, Cr, Ti, Zr, Nb, Mo, Hf, Ta and W, and X is an optional inclusion of at least one element selected from Re, Y, Zn, As, In, Sn, and rare earth elements. The nanocrylstalline alloy ribbon has a local structure such that nanocrystals with average particle sizes of less than 40 nm are dispersed in an amorphous matrix and are occupying more than 30 volume percent of the ribbon.

Abstract: A common mode choke coil includes a multilayer body obtained by stacking insulating layers, first and second coils inside the multilayer body, and first to fourth outer electrodes on outer surfaces of the multilayer body. The first and second outer electrodes are respectively connected to first and second ends of the first coil. The third and fourth outer electrodes are respectively connected to first and second ends of the second coil. The first coil includes first to third spiral conductors connected to one another through via conductors. The second coil includes fourth to sixth spiral conductors connected to one another through via conductors. The first spiral conductor is adjacent to the second and fourth spiral conductors. The fourth spiral conductor is adjacent to the first and fifth spiral conductors. The distance between the first and fourth spiral conductors is smaller than the distances between other spiral conductors.

Abstract: A transformer includes: an upper E core; a lower E core; a first coil portion disposed so as to cover a magnetic leg of the upper E core and a magnetic leg of the lower E core; and a second coil portion disposed so as to cover the periphery of the first coil portion in a direction perpendicular to the central axis of winding of the first coil portion. The first coil portion includes a bobbin and an edgewise coil wound around the bobbin. The second coil portion includes a bobbin and an edgewise coil wound around the bobbin.