Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least 3 iron cores coupled to the outer peripheral iron core portions, and coils wound onto the at least three iron cores. Gaps are formed between one of the at least three iron cores and another iron core adjacent thereto. Further, the reactor includes a temperature detection part arranged in the center of one end surface of the core body.

Abstract: A coil electronic component includes a body portion and an external electrode. The body portion includes a coil layer and a reinforcing layer disposed on at least one of an upper portion and a lower portion of the coil layer. The external electrode is disposed on an outer surface of the body portion. The coil layer includes an insulating layer, a coil pattern, and a first conductivity type via penetrating through the insulating layer to be connected to the coil pattern, and the reinforcing layer has a higher degree of rigidity than the insulating layer.

Abstract: An apparatus of coupled inductors includes a first coil and a second coil arranged in a way that an inter-coil capacitance between the first coil and the second coil can keep electromotive forces induced by a first inductance of the first coil and a second inductance of the second coil about the same. As the current bypasses an unbalanced parasitic capacitor, a compensation capacitor disposed between the two coils can compensate the inter-coil capacitance of the parasitic capacitor. The apparatus of coupled inductors implemented with a specific coil arrangement or disposed with the compensation capacitor can keep the EMFs induced over the two inductances equal in amplitude, which prevents both the differential-mode and common-mode interference from being converted, improving the characteristics of mode conversion and is suitable to be utilized in a PoE system or the like.

Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the plurality of outer peripheral iron core portions, and coils wound onto the at least three iron cores. Gaps, which can be magnetically coupled, are formed between one of the at least three iron cores and another iron core adjacent thereto. The reactor includes cover parts which at least partially cover the iron cores and provide insulation from the coils.

Abstract: Disclosed are a bus bar unit capable of being easily manufactured while preventing a bus bar from being separated from a magnetic core and also capable of being reduced in size, and a manufacturing method thereof. The bus bar unit includes a magnetic core having a through-hole and covered with an insulating material, U-phase, V-phase and W-phase bus bars of which main body portions are arranged in parallel with each other in a predetermined direction within the through-hole and one side connecting portions provided on one side in an axial direction of the through-hole from the main body portions are bent in a direction crossing the axial direction, and a base member formed of an insulating material and to which the magnetic core is fixed, wherein the one side connecting portions of the bus bars are held while being disposed between the base member and the magnetic core.

Abstract: A stationary induction apparatus includes a cooled magnetic material ring disposed in an end portion of each winding and that can reduce an electromagnetic-mechanical force and improve reliability. The apparatus includes an iron core; a winding outside of the iron core; a plurality of iron core clamps that sandwich the winding from a longitudinal direction of the iron core; a magnetic material ring with a silicon steel plate wound outside of the iron core; a laminated magnetic material composite ring including an insulator on an outer circumference of the magnetic material ring; and a holding-and-cooling structure between the winding and the laminated magnetic material composite ring, in which a portion of the holding-and-cooling structure protruding from between the winding and the laminated magnetic material composite ring extends in the longitudinal direction, and the holding-and-cooling structure is a recess with respect to the winding and the laminated magnetic material composite ring.

Abstract: An inductor includes a body in which is disposed a coil formed as a plurality of coil patterns connected by one or more via(s). Each via includes a first conductive layer and a second conductive layer formed on the first conductive layer, and a distance between portions of coil patterns connected by the via in the body is greater than a distance between other portions of the coil patterns in the body. Methods of forming inductors having vias including first and second conductive layers are also provided.

Abstract: A balanced-to-unbalanced (balun) transformer may include two metal layers on a substrate, a first winding following a first winding path, and a second winding following a second winding path, where each winding is formed in one or more of the two metal layers. The winding paths may include winding segments each disposed around a central axis of the balun transformer, where connectors join adjacent winding segments such that the winding paths are continuous between ends of the windings. The second winding path may be interwoven with, but independent from, the first winding path to form a resultant pattern that is substantially symmetrical. The second winding may include a number, n, of sub-windings, where n>1 such that a resultant number of winding segments of the second winding is greater than a resultant number of winding segments of the first winding by a factor of n.

Abstract: A choke includes a single-piece core entirely made of a same material, the single-piece core having two boards and a pillar located between the two boards, a winding space being located among the two boards and the pillar, wherein the pillar has a non-circular and non-rectangular cross section along a direction substantially perpendicular to an axial direction of the pillar, the cross section of the pillar has a first axis and a second axis intersecting with each other at a center of the cross section of the pillar and are substantially perpendicular with each other, the first axis is longer than the second axis, and the cross section of the pillar is substantially symmetrical to both of the first axis and the second axis.

Abstract: Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings, current(s) in half-shields, and the volume of space swept out by shield airgap(s) emerge from plane of paper perpendicularly at FIG. 5, but as these emerge therefrom, they curve to follow toroidal major circle(s). Core regions preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s). Half-shield(s) preferably have electrically conductive material(s) distributed therein as is sufficient to substantially cancel magnetic flux lines impinging thereon before effects of such impinging magnetic flux lines would reach shield airgap(s) and/or outer surface(s) of half-shields.

Abstract: A reactor includes a coil body, an exterior case, and a filler. The coil body includes a core and a coil wound around the core. The exterior case includes a metal structure and a resin frame. The metal structure has a bottom surface and a side wall provided to stand upright from the bottom surface. The bottom surface and the side wall of the metal structure are unitarily formed with each other. The frame is disposed at an opposite side to the bottom surface of the metal structure. The exterior case houses the core and the coil. The filler is filled between the exterior case and the coil body.

Abstract: First and second wires form a wire assembly by being wound around a winding core portion together. The wire assembly includes a twisted wire portion, an inner layer portion, an outer layer portion, a plurality of outward transition portions, and an inward transition portion. The outer layer portion includes a first outer layer portion which is connected to one of the outward transition portions extending from an intermediate position of the inner layer portion and connected to the inward transition portion. The inward transition portion extends to an intermediate position of the inner layer portion.

Abstract: A terminal electrode is secured to a flange portion with an adhesive and includes a base disposed on an outer surface of the flange portion and a mounting portion disposed above a bottom surface of the flange portion and extending from a bent portion extending from the base and covering a ridge line along which the outer surface and the bottom surface meet. The mounting portion is not secured to the flange portion.

Abstract: An inductor includes a body including a coil part therein. The coil part includes a first coil layer electrically connected to a first via; a second coil layer disposed below the first coil layer and electrically connected to a second via displaced laterally from that of the first via; and a via connection layer disposed between the first coil layer and the second coil layer and electrically connected to the first and second vias.

Abstract: An inductive component and a method for producing an inductive component are disclosed. In an embodiment the inductive component includes a mounting device, a magnetic core, at least one winding of a wire wound around the magnetic core and a latching device, wherein the core is secured to the mounting device by the latching device.

Abstract: Provided is a low-weight, high-efficiency inductor design for use with or in electrical power equipment, such as inverters. A toroidal power inductor includes a support structure comprising an outer shell, an inner shell, and one or more coolant channels formed therebetween, a plurality of conductors wrapped around and supported by an exterior surface of the outer shell, and an interior cavity substantially enclosed by the inner shell of the toroidal support structure. The plurality of conductors are configured to provide an inductance for the toroidal power inductor, and the one or more coolant channels are distributed beneath the exterior surface of the outer shell to cool the plurality of conductors. An air-core power inductor may implement the conductors using high-temperature superconducting (HTS) tapes cooled by cryogenic fluid flowing within the coolant channels.

Abstract: An inductor includes first and second coil patterns disposed in a single chip, and at least one common lead terminal electrically connected to respective end portions of the first and second coil patterns. The first and second coil patterns operate independently of each other, such that a range of a current passing through the first coil pattern and a range of a current passing through the second coil pattern are different from each other. The first and second coil patterns are coil patterns having different electrical characteristics.

Abstract: A transformer having a magnetic core which includes at least one leg with a winding arrangement and a yoke, wherein a compensation winding arrangement is provided to compensate for a unidirectional flux fraction that flows in the at least one leg, and the compensation winding arrangement is arranged on the yoke.

Abstract: Embodiments of the disclosure relate to a three-dimensional (3D) inductor-capacitor (LC) circuit. The 3D LC circuit includes an inductor formed by a conductive ribbon of a defined height and a conductive sleeve conductively coupled to the conductive ribbon. The conductive sleeve and the conductive ribbon can generate a built-in capacitance(s) for the 3D LC circuit. In examples discussed herein, the conductive ribbon can also help reduce the skin effect of the inductor by distributing an electrical current across the defined height of the conductive ribbon. By generating the built-in capacitance(s) and distributing the electrical current across the defined height of the conductive ribbon, it is possible to reduce current crowding and improve quality factor (Q-factor) of the 3D LC circuit. As a result, it is possible to couple one or more 3D LC circuits to form a high performance radio frequency (RF) filter(s) for the fifth-generation (5G) wireless communication systems.

Abstract: An improvement in coil characteristics is achieved by performing accurate positioning of a magnetic core. A coil component 2 includes a wiring substrate 3, a magnetic core 4 that has a ring-like shape and that is disposed on a bottom surface of the wiring board 3, and a coil electrode 5 that is wound around the magnetic core 4, and the coil electrode 5 includes a plurality of inner metallic pins 11a and outer metallic pins 11b that are vertically arranged around the magnetic core 4. First end portions of the plurality of inner and outer metallic pins 11a and 11b are each connected, with solder, to an end surface of a corresponding one of a plurality of via conductors 9a, the end surface being exposed at the bottom surface of the wiring board 3.