Abstract: A reactor includes an outer peripheral iron core, at least three iron cores, and a coil wound around the iron core. The reactor further includes an energizing portion connected to the coil and configured to be connected to a cable, and a cover provided to cover the energizing portion. At least one cutout formed in the cover is provided with at least one adjustment member configured to adjust an area of the cutout at least partially in the cover. The adjustment member is configured to be cut away from the cutout or to be bent with respect to a surface where the cutout is formed.

Abstract: A coil electronic component includes a body including a coil portion disposed therein, and including a plurality of magnetic particles, and external electrodes connected to the coil portion. The body includes an internal region and a protective layer disposed on a surface of the internal region. A first particle of the plurality of magnetic particles included in the protective layer includes an oxide film disposed on a surface of the first particle, and a second particle, having a size greater than a size of the first particle, of the plurality of magnetic particles includes a coating layer disposed on a surface of the second particle and having a composition different from a composition of the oxide film.

Abstract: An adapter is provided and having a circuit board, primary components and secondary components installed on the circuit board, a shielding plate disposed between the primary components and the secondary components, and a transformer installed on the circuit board. The transformer has a bobbin, an iron core set assembled with the bobbin, at least one movable pin, at least one first winding, and at least one second winding. The movable pin is able to be positioned at an upper position for allowing the iron core set to be assembled with the bobbin or for allowing the first winding and the second winding to be wound onto the winding portion, and the movable pin is able to be positioned at a lower position when the transformer is installed onto the circuit board. Thereby, the adapter can be assembled in an automated process with improved assembly efficiency and high production yields.

Abstract: A magnetic component and a switch power supply device are disclosed. The magnetic component includes a magnetic core and at least three windings, the magnetic core including at least three winding columns, at least one side columns, a first cover plate and a second cover plate opposite to each other, wherein the at least three winding columns are sequentially arranged in adjacent, the first cover plate and the second cover plate are respectively at upper parts or lower parts of the at least three winding columns and the at least one side column to form a closed magnetic flux loop; the at least three windings are wound on the at least three winding columns, respectively; wherein magnetic flux direction of the middle winding column in adjacent three winding columns is opposite to magnetic fluxes direction of the other two winding columns in adjacent three winding columns.

Abstract: A compound line filter includes a bobbin, two coils and a magnetic core. The coils are wound on the bobbin in a state of being separated from each other in an axial direction. The magnetic core includes a closed magnetic path part and a secondary magnetic path part. The bobbin is attached to the closed magnetic path part. The secondary magnetic path part extends from the closed magnetic path part in a direction intersecting with the axial direction and is positioned between the coils in the axial direction. The bobbin includes at least one gear, and the gear is positioned between the coils in the axial direction.

Abstract: A coil component includes a body including an internal coil and first and second external electrodes respectively disposed on outer surfaces of the body. The first and second external electrodes extend from a lower surface of the body to first and second end surfaces connected thereto, respectively. The first external electrode on the first end surface and the second external electrode on the second end surface each include a base portion and an extending portion extending from the base portion in a height direction, having a predetermined height, and having a width narrower than a width of the base portion.

Abstract: A method of fabrication and device made by preparing a photosensitive glass substrate comprising at least silica, lithium oxide, aluminum oxide, and cerium oxide, masking a design layout comprising one or more holes to form one or more electrical conduction paths on the photosensitive glass substrate, exposing at least one portion of the photosensitive glass substrate to an activating energy source, exposing the photosensitive glass substrate to a heating phase of at least ten minutes above its glass transition temperature, cooling the photosensitive glass substrate to transform at least part of the exposed glass to a crystalline material to form a glass-crystalline substrate and etching the glass-crystalline substrate with an etchant solution to form one or more angled channels that are then coated.

Abstract: The present invention provides a composite magnetic core, containing magnetic powders poor in its moldability, which can be configured arbitrarily and has a magnetic characteristic excellent in direct current superimposition characteristics and a magnetic element composed of the composite magnetic core and a coil wound around the circumference thereof. A compressed magnetic body (2) obtained by compression-molding magnetic powders is combined with an injection-molded magnetic body (3) obtained by mixing a binding resin with magnetic powders having surfaces thereof electrically insulated and by injection-molding a mixture of the magnetic powders and the binding resin. The compressed magnetic body (2) is press-fitted into the injection-molded magnetic body (3) or bonded thereto at a combining portion thereof to obtain the combined body. The combined body is composed of the injection-molded magnetic body (3) constituting a housing in which the compressed magnetic body (2) is disposed.

Abstract: A coil component includes an air-core coil embedded in a magnetic body constituted by resin and metal magnetic grains. Both ends of the coil are exposed on the surface of the magnetic body, and the side on which both ends are exposed is polished and etched to form terminal electrodes. To be specific, an underlying layer of metal material is formed across the surface of the magnetic body and the ends by means of sputtering, and then a cover layer is formed. Where the magnetic body contacts the underlying layer, the areas where the underlying layer is in contact with the resin ensure insulation, while the contact between the underlying layer and the exposed parts of the metal magnetic grains ensures adhesion, thus increasing the adhesion strength with respect to the terminal electrodes.

Abstract: In various aspects, a plate-shaped leakage structure as an insert in a magnetic core of an inductive component, a magnetic core having a plate-shaped leakage structure, and an inductive component. In illustrative embodiments, a plate-shaped leakage structure is provided as an insert in a magnetic core, which is passed through, along the thickness direction thereof, by at least one spacer having a very low magnetic permeability (as opposed to the rest of the material of the leakage structure). In a magnetic core according to an aspect, core legs are arranged above opposite bearing surfaces of the plate-shaped leakage structure, the plate-shaped leakage structure providing a leakage path between the core legs.

Abstract: An inductor element includes a resin substrate which is an insulating substrate including conductor patterns, and coils defined by the conductor patterns. Two coils are arranged on the same plane, and connected in series. Adjacent coils define a closed magnetic circuit. That is, the winding direction and the connection of the coils are determined such that magnetic flux that interlinks coils that are adjacent in the planar direction define a loop. There are also provided an inductor bridge and a high-frequency filter that include the inductor element.

Abstract: Provided is a reactor that can be manufactured without holding an assembly when the assembly is fixed to a mounting plate via a bonding layer. The reactor includes a coil, a magnetic core, an interposed insulating member, a metal mounting plate, and a bonding layer. The interposed insulating member is provided with an inwardly interposed portion, a first interposed end face portion, and a second interposed end face portion. The interposed insulating member is obtained by combining a plurality of divided pieces that includes a divided piece having the first interposed end face portion, and a divided piece having the second interposed end face portion. The divided pieces are respectively provided with engaging portions that engage with each other, and the first interposed end face portion and the second interposed end face portion are each provided with a leg piece that separates the coil from the mounting plate.

Abstract: An inductor includes a body including an organic material and a coil part disposed in the body. External electrodes are disposed on outer surfaces of the body and connected to the coil part. The coil part includes a conductive pattern and a conductive via. An adhesive layer is disposed between the conductive pattern and the conductive via, and the adhesive layer is formed of a material different from materials of the conductive pattern and the conductive via.

Abstract: A vehicle inductor assembly includes an inductor, a thermal plate, an emitter, and a controller. The inductor is secured within a housing. The thermal plate supports the inductor and includes a channel having a flexible wall with actionable particles. The emitter is located adjacent the channel. The controller is programmed to activate the emitter to impart a force upon the particles to move the wall such that a cross-sectional area of the channel is adjusted to influence a flow rate of coolant flowing therethrough. The wall may be a membrane partially secured to an interior of the channel and include the actionable particles. The actionable particles may be one of dielectric and magnetic particles and the emitter may selectively output one of a voltage, an electric field, or a magnetic field to move the dielectric or magnetic particles such that the membrane moves to adjust the cross-sectional area of the channel to influence a flow rate of coolant flowing therethrough.

Abstract: An electronic component includes a magnetic body, and a coil pattern embedded in the magnetic body and including internal coil parts having a spiral shape and lead parts connected to ends of the internal coil parts and externally exposed from the magnetic body. A thickness of each of the lead parts is formed to be thinner than a thickness of each of the internal coil parts.

Abstract: A contactless connector is provided and includes an inductive coupling element, a first contact lead, a second contact lead, a base plate, and an outer ferrite element. The inductive coupling element includes a plurality of windings, and the first contact lead and the second contact lead are connected to the plurality of windings and carry electric currents in opposing directions. The base plate includes a lead receiving passageway receiving both the first contact lead and the second contact lead, and the outer ferrite element is magnetically coupled to the base plate and partially surrounds the inductive coupling element.

Abstract: An electronic component includes a magnetic body and an internal coil structure embedded in the magnetic body. The internal coil structure includes a first coil pattern part and a second coil pattern part formed on the first coil pattern part. An outermost coil pattern portion of the first coil pattern part is thicker than an inner coil pattern portion thereof.

Abstract: A coil electronic component includes a magnetic body in which a coil having leads exposed to side surfaces of the coil is disposed. External terminals are connected to the leads and disposed on outer surfaces of the magnetic body. Additionally, the external terminals are folded to have side surface portions which are disposed on end surfaces of the magnetic body, and bottom surface portions which are disposed on a bottom surface of the magnetic body.

Abstract: Radio frequency (RF) transmission line transformers are disclosed. Unlike conventional transformers that employ magnetic cores that transmit energy from input to output through magnetic flux linkages, the embodiments of the RF transmission line transformer disclosed herein transfer energy by configuring transformer coils as balanced transmission lines. More specifically, the RF transmission line transformers have a primary transformer coil that forms at least one primary winding and a secondary transformer coil that forms at least a pair of secondary windings. The primary winding of the primary transformer coil is disposed between the pair of secondary windings so that the primary winding forms a different balanced transmission line with each one of the pair of secondary windings. This results in greater bandwidth and higher transformer power efficiency (TPE) at RF frequencies.

Abstract: A coupled inductor array includes a monolithic magnetic core formed of magnetic materials having a distributed gap, first and second windings, and a low-permeability magnetic structure. The first and second windings form respective first and second winding turns around a common winding axis extending in the height direction. The low-permeability magnetic structure is embedded in the monolithic magnetic core and forms a loop around the common winding axis. The low-permeability magnetic structure separates the first and second winding turns in the height direction, and the low-permeability magnetic structure is formed of a magnetic material having a lower magnetic permeability than the one or more magnetic materials forming the monolithic magnetic core. One possible application of the coupled inductor array is in a multi-phase switching power converter.