Abstract: In a reactor core, a gap section between a plurality of core material portions is fixed by adhesion through a spacer, and a resin is arranged vertical to the adhering surface between the core material and the spacer, for sandwiching at least a part of the core material. The resin material preferable a molded material.

Abstract: An electrical apparatus includes a magnetic core, and a bobbin extending about and partially covering the magnetic core. The bobbin is formed from a thermally conductive material. An electrical conductor forms a winding that wraps about the bobbin.

Abstract: Provided are a soft magnetic powder for obtaining a dust core having a low iron loss, the dust core, and a method for producing a dust core. The present invention relates to a soft magnetic powder including a plurality of soft magnetic particles, each having an insulating layer. The Vickers hardness HV0.1 of a material constituting the soft magnetic particles is 300 or more, and the insulating layer contains Si, O, and at least one of an alkali metal and Mg. As long as the soft magnetic powder has such features, a material having a high electric resistance, such as an iron-based alloy, can be used. The eddy current loss can be reduced, and it is possible to effectively obtain a dust core having a low iron loss.

Abstract: A composite magnetic core assembly includes an inner magnetic core and an outer magnetic core. The inner magnetic core is made of a high saturation flux density and low permeability material. The outer magnetic core is made of a low saturation flux density and high permeability material. The outer magnetic core includes a ring-shaped wall and a receptacle. The inner magnetic core is accommodated within the receptacle.

Abstract: A power management module, provides an inductor including one or more electrical conductors disposed around a ferromagnetic ceramic element including one or more metal oxides having fluctuations in metal-oxide compositional uniformity less than or equal to 1.50 mol % throughout the ceramic element.

Abstract: A magnetic material constituted by a grain compact 1 obtained by shaping metal grains 11 and then heat-treating them in an oxidizing ambience, wherein the metal grains 11 are made of a Fe—Cr—Si alloy and their FeMetal/(FeMetal+FeOxide) ratio as measured before shaping by XPS, with respect to the sum of integral values at the peaks of 709.6 eV, 710.7 eV and 710.9 eV, or FeOxide, and peak integral value at 706.9 eV, or FeMetal, is 0.2 or more.

Abstract: A coil component includes: a bar-like core; and a winding part formed of a conducting wire that is wound in a plurality of layers around the outer periphery of the core according to a solenoidal winding method. Winding collapse preventing shifts D1 to D4 each corresponding to a plurality of turns between an end part of a lower winding layer and an end part of an upper winding layer are respectively set to both end parts in the winding width direction of winding layers of the winding part. In transitioning from the lower winding layer to the upper winding layer, the conducting wire is turned back from the end part of the lower winding layer, and is obliquely wound in a small number of turns across each winding collapse preventing shift corresponding to the plurality of turns, and dense winding of the upper winding layer is started.

Abstract: There are provided a coil component and a method of manufacturing the same. The coil component includes a core; at least one bobbin coupled to the core and having a coil wound therearound; and a base having the core seated therein and including an external connection terminal, wherein one side of the core is seated in the bobbin and the other side thereof is exposed to the outside of the base.

Abstract: Generally, methods and processes for assembling magnetic components are presented herein. More specifically, conductors are wound around a substantially hollow bobbin. Portions of the conductors may be temporarily positioned outside the bobbin through slots in the flanges of the bobbin during the assembly process. Insulating layers may be wrapped around the conductors. The center legs of a pair of magnetic core halves may be inserted into the bobbin. The base of the magnetic core halves may have a passage to allow a conductor to pass therethrough at a height less than the height of the base.

Abstract: A reactor has a cylindrical molded coil assembly formed by covering a coil with a resin, wherein the coil assembly is sealed by an iron powder mixed resin to which iron powder has been admixed. The reactor has an axial core shaft, and single or multiple ring-shaped core members. The ring-shaped core members are disposed outside the outer surface of the core shaft such that the core shaft is inserted inside the inner surface of said ring-shaped core members, and the coil assembly is disposed outside the outer surface of the ring-shaped core member such that the ring-shaped core members are inserted inside the inner surface of said coil assembly. A protrusion protruding inwards from the inner surface of the coil assembly contacts the axial end surface of a ring-shaped core member.

Abstract: A reactor-securing structure includes, one end of a first-side stay and one end of a second-side stay that are connected to portions of a reactor which are separated from each other at the two sides of a coil axial direction. The other end of the first-side stay and the other end of the second-side stay are fastened in states overlapping the inverter case. A first-side overlapping portion is formed by having the other end of the first-side stay overlap the inverter case, and a second-side overlapping portion is formed by having the other end of the second-side stay overlap the inverter case. A portion of the first-side overlapping portion and a portion of the second-side overlapping portion, when seen from a plan view, are provided in the same range relating to the length direction of the I-shaped section forming the reactor.

Abstract: A transformer assembly. In some embodiments, the transformer assembly comprises a transformer, comprising a magnetic core; a primary winding wound around the magnetic core, wherein the primary winding comprises one or two turns of a first conductive material; and a secondary winding wound around the magnetic core, wherein the secondary winding comprises a plurality of turns of a second conductive material, and wherein a diameter of the magnetic core is sized such that the transformer achieves a first inductance with a core loss comparable to a winding loss.

Abstract: There is provided a resonator including a magnetic core and a coil wherein the magnetic core includes a first magnetic core block and a second magnetic core block, the coil is wound on the magnetic core, the first magnetic core block includes a first portion and second portions on sides of the first portion, a sectional area of the first portion is larger than each sectional area of the second portions, the second magnetic core block includes a third portion and fourth portions on sides of the third portion along its longitudinal direction, a sectional area of the third portion is larger than each sectional area of the fourth portions, and the coil is wound on the first portion and the third portion.

Abstract: An embodiment of the invention relates to an apparatus including a magnetic device and a related method. A multilayer substrate is constructed with a winding formed in a metallic layer, an electrically insulating layer above the metallic layer, and a via formed in the electrically insulating layer to couple the winding to a circuit element positioned on the multilayer substrate. A depression is formed in the multilayer substrate, and a polymer solution, preferably an epoxy, containing a ferromagnetic component such as nanocrystaline nickel zinc ferrite is deposited within a mold positioned on a surface of the multilayer substrate above the winding and in the depression. An integrated circuit electrically coupled to the winding may be located on the multilayer substrate. The multilayer substrate may be a semiconductor substrate or a printed wiring board, and the circuit element may be an integrated circuit formed on the multilayer substrate.

Abstract: An integrated magnetic element includes a conductive base, a bobbin, a winding coil, a first magnetic core assembly and a second magnetic core assembly. The conductive base includes a first conductive unit including a plurality of first conductive winding parts, a second conductive unit including at least one second conductive winding part, and a connecting part. The bobbin includes a bobbin body, a winding section, a channel and a plurality of insertion slots. The first conductive winding parts are inserted into corresponding insertion slots of the bobbin. The first magnetic core assembly is sheathed around the bobbin and partially embedded into the channel of the bobbin and the first holes of the first conductive winding parts. The second magnetic core assembly is sheathed around the second conductive unit of the conductive base and partially embedded into the second hole of the second conductive winding part.

Abstract: There is provided a transformer capable of easily securing an insulation distance between a core and coils. The transformer includes: a bobbin including a pipe shaped body part having a through-hole formed therein and flange parts protruding outwardly from both ends of the body part; a plurality of coils wound on the body part of the bobbin; and a core inserted into the through-hole of the bobbin to form a magnetic circuit, wherein both an outer surface and an outer peripheral surface of the flange parts are disposed to be spaced apart from an inner peripheral surface of a core by a predetermined interval.

Abstract: A coil component of the present disclosure includes: a coil having a first coil tier and a second coil tier with an outer diameter smaller than that of the first coil tier; and a core on which the coil is mounted. The second coil tier of the coil is in contact with the core.

Abstract: An ignition transformer (80) for generating an ignition voltage for a high-pressure gas discharge lamp (5) which has a high-pressure gas discharge lamp burner (50), comprising a ferrite core (81) and at least one primary winding (86) and at least one secondary winding (87), the at least one secondary winding (87) being formed from an insulated metal strip that is disposed on the ferrite core (81) in such a way that the end of the at least one secondary winding (87) that carries the high-voltage is disposed on the inside, wherein the ferrite core has the form of a film reel, and the secondary winding (87) is wound onto the ferrite core like a film.

Abstract: Provided are a coil component capable of contributing to improving productivity of a reactor, and a reactor exhibiting good productivity. A reactor 1A includes one coil 2 formed by spirally winding a wire 2w, and a magnetic core 3, which is disposed inside and outside the coil 2 and which forms a closed magnetic circuit. The magnetic core 3 includes an inner core portion 31 disposed inside the coil 2, and an outer core portion 32 disposed around the coil 2. The coil 2 and the inner core portion 31 constitute a coil component 2A held as an integral unit by a resin molded portion 20. A shape of the coil 2 is maintained by the resin molded portion 20. Since the coil component 2A includes a portion of the magnetic core 3, the number of components can be reduced, and the coil 2 and the inner core portion 31 can be easily placed into a case 4A when they are housed therein. The coil 2 is easier to handle because the coil shape is constantly maintained without expanding or contracting.

Abstract: A manufacturing method of a coil component comprises the steps of: providing a first permeance element; sticking a strip-like element to a first area of a first surface of the first permeance element; providing a second permeance element; disposing a winding structure between the first permeance element and the second permeance element, or around at least one of the first permeance element and the second permeance element; and connecting the first permeance element and the second permeance element by a connecting material stuck to a second area, which is without the strip-like element, of the first surface.

Abstract: A reactor part includes at least a winding and a magnetic substance core, in which the core includes a pair of winding portions around each the winding is wound, and a non-winding portion around which no winding is wound, wherein a cross-sectional area in a direction orthogonal to a magnetic path of the non-winding portion of the core is made smaller than a cross-sectional area in a direction orthogonal to a magnetic path of the each of winding portions.

Abstract: A magnetic core includes a first core and a second core, which is formed of material having a lower magnetic permeability and a higher saturation magnetic flux density than those of the first core. The second core forms a closed magnetic path together with the first core. The second core has a distal surface held in contact with the first core. The area of the distal surface is larger than the smallest cross-sectional area of the second core in a direction perpendicular to the flow direction of magnetic flux in the closed magnetic path.

Abstract: A bobbin used in a transformer is disclosed. The bobbin includes a main body, two side walls, two wire collecting bases and at least one extension wire collecting base. The main body has a tunnel. The two side walls are disposed on the two ends of the main body, respectively. The tunnel passes through the two ends of the main body and the two side walls. The two wire collecting bases are disposed on the two side walls respectively or on one of the two side walls. Each wire collecting base has at least one wire collecting part. The extension wire collecting base has at least one extension wire collecting part. The extension wire collecting base can couple with the wire collecting base.

Abstract: A magnetic device includes two symmetric magnetic cores, each of which includes a base, a first protruding portion and second protruding portions. The first protruding portion and the second protruding portions are formed on the base separately along two edges of the base. The two symmetric magnetic cores are assembled such that a gap is formed between the first protruding portion of one of the two symmetric magnetic cores and the first protruding portion of the other one of the two symmetric magnetic cores. A method for generating inductance is also disclosed herein.

Abstract: A reactor is composed of a coil and a core placed in the inside area and outer peripheral area of the coil in a container. The core is composed of magnetic powder, non-magnetic powder, and resin. The non-magnetic powder is composed of main component powder and low elastic modulus powder. The main component powder as a main component of the non-magnetic powder is made of one or more kinds of powder of a heat conductivity which is larger than that of the resin. The low elastic modulus powder is made of one or more kinds of powder of an elastic modulus which is smaller than that of the powder forming the main component powder.

Abstract: A rare earth magnet is observed to function as a constant flux generator until coerced. To exploit this law, a Magnetic Power Converter is configured as a figure eight shaped balanced reluctance bridge where a rare earth magnet provides a source of constant flux employed as a working fluid. One side of the bridge drives an output coil and the other side is moderated by a toroid shaped control core acting as a variable reluctance shunt with respect to the magnet. Current in the control coil determines the rate and degree of flux variation across the bridge and therefore the resultant output voltage. Due to a mitigation of Lenz effect, full output loading is not reflected in the input; this property supports real power conversion efficiencies that may have wide applications in alternative energy and green energy generation.

Abstract: A magnetic material constituted by a grain-compacted body comprising a plurality of metal grains made of a Fe—Si—M soft magnetic alloy (where M is a metal element more easily oxidized than Fe) and an oxide film formed on the surface of the metal grains; wherein there are bonding portions via the oxide film formed on the surfaces of adjacent metal grains and direct bonding portions of metal grains in locations where the oxide film is not present.

Abstract: Two conducting wires are used in one embodiment of an inductor. Opposite ends of each of the conducting wires are connected to leader lines (terminals) shared by the conducting wires. Each of the conducting wires is wound to make half a round of an annular or ring-like magnetic substance. One of the conducting wires is wound around a lower half area of the magnetic substance to form one winding while the other conducting wire is wound around an upper half area of the magnetic substance to form another winding. In this manner, the distance between the leader lines can be increased to eliminate parasitic capacitance between the leader lines. The magnetic fluxes generated by current flowing in the two windings are in the same direction. Thus, it is possible to provide an inductor whose total parasitic capacitance is reduced. In other embodiments, additional conducting wires are used.

Abstract: The invention relates to a transformer construction comprising a plurality of transformer cores configured to share magnetic flux paths and, as a result, at least one of the cores comprises a post and an associated sidewall having an effective cross-sectional area which is less than that of the post. Such a construction may be employed in a power conditioning unit, for example, for a photovoltaic module, which is configured to operate the cores out of phase from each other. Also described is a transformer winding comprising a longitudinal spine having a first turn emanating from a first portion of the spine in a first transverse direction and a second turn emanating from a second portion of the spine in a second transverse direction, wherein the second transverse direction is opposite to the first transverse direction.

Abstract: In a hand tool device having at least one charging coil provided for transmitting energy, the charging coil includes a coil core having at least two core segments which are movable relative to each other.

Abstract: A curable epoxy resin composition including at least an epoxy resin component and a hardener component, and optionally further additives, wherein: (a) the epoxy resin component is an epoxy resin compound or a mixture of such compounds; (b) the hardener component includes (b1) an aliphatic and cycloaliphatic or aromatic polycarbonic acid anhydride; and (b2) a polyether-amine of the general formula (I), H2N—(CnH2n—O)m—CnH2n—NH2, wherein n is an integer from 2 to 8; and m is from about 3 to about 100; (c) the polycarbonic acid anhydride [component (b1)] is present in the curable epoxy resin composition in a concentration of 0.60 Mol to 0.93 Mol; and (d) the polyether-amine of the general formula (I) [component (b2)] is present in the curable epoxy resin composition in a concentration of about 0.02 Mol to about 0.1 Mol.

Abstract: A composite (combined type of) transformer includes: a transformer core including a plurality of transformer magnetic leg portions, a transformer magnetic leg portion, and a pair of transformer bases; a plurality of inductor cores each including an inductor magnetic leg portions, inductor outer magnetic leg portions, and a pair of inductor bases; and a plurality of windings wound around the transformer magnetic leg portion and the inductor magnetic leg portions. The windings are wound to generate magnetic fluxes in such directions as to be cancelled out in a magnetic closed circuit in the transformer core.

Abstract: A coil component 10 includes: a magnetic core made of a magnetic alloy; a coil having a spiral part placed around a pillar part of the magnetic core; a magnetic sheath formed on the magnetic core in a manner covering the coil except for the bottom face of the magnetic core; and a first external terminal and second external terminal formed on the magnetic core and magnetic sheath; wherein the magnetic sheath has numerous voids inside.

Abstract: The invention is a processing component used in electrophoresic conversion of coal fired flue gas carbon dioxide and nitrogen emissions into useful products in lieu of the more costly geosequestration of pollutant by-products produced in the electrical generating and transportation sectors of the economy. Carbon dioxide and facility stack nitrogen imbalance of coal-fired furnace emissions are chemically reacted with electric vehicle fuel cell spent electrolyte in the commercial production of plastic carbon polymers and nitrogen fertilizers.

Abstract: A substrate has a coil that is a choke coil part and, for example, is used for controlling a motor. At the substrate, an electronic component mounting part is formed such that a circuit conductor therein is to be exposed to outside. A portion other than an externally connected portion such as the electronic mounting part is covered with substrate-forming resin to form an injection molded circuit board. The coil arranged at the substrate (the injection molded circuit board) is provided for smoothing current inputted from outside. A core part is formed at the coil by core-forming resin such that the coil part covers at least a center core part of the coil.

Abstract: A toroidal current transformer that can be used as a neutral current transformer in a single or three phase system as a result of its compactness is described. The core is made of ferromagnetic material having a primary winding and a secondary winding.

Abstract: This invention relates to an inductor, more particularly, to an inductor with variable inductances.

Abstract: A multi-winding inductor includes a first foil winding and a second foil winding. One end of the first foil winding extends from a first side of the core and wraps under the core to form a solder tab under the core. One end of the second foil winding extends from a second side of the core and wraps under the core to form another solder tab under the core. Respective portions of each solder tab are laterally adjacent under the magnetic core. A coupled inductor includes a magnetic core including a first and a second end magnetic element and a plurality of connecting magnetic elements disposed between and connecting the first and second end magnetic elements. A respective first and second single turn foil winding is wound at least partially around each connecting magnetic element. Each foil winding has two ends forming respective solder tabs.

Abstract: A coil block and an electronic device using the same are provided. The coil block includes a first coil, a second coil, a core having an intermediate layer for separating the first coil and the second coil from each other, and a shield for shielding the first coil, the second coil, and the intermediate layer, wherein the first coil and the second coil have the same winding direction. According to the coil block and the electronic device, the filtering can be performed without any inductance offset even if the PWM signal having the inversed phase or the same phase is inputted. Also, since two windings can be wound on to one core using a common coil, the cost and the size of the coil block can be reduced.

Abstract: The present invention provides a communication device that can reduce a housing of an electronic device in size and thickness when the communication device is built in the electronic device. The communication device includes: an antenna coil (11a) arranged on an outer peripheral portion (134) of a housing (131) surface facing a reader/writer (120) of a mobile phone (130); a magnetic sheet (13) that attracts a magnetic field transmitted from the reader/writer (120) to the antenna coil (11a); and a communication processing unit (12) that is driven by a current flowing in the antenna coil (11a) and performs communication with the reader/writer (120), wherein the magnetic sheet (13) is arranged on the reader/writer (120) side of the antenna coil (11a) at a center portion (132a), and the antenna coil (11a) is arranged on the reader/writer (120) side on an outer periphery (130d) side.

Abstract: An inductance-stable ultra high temperature circuit coupling transformer (50) used to transmit and receive alternating current power and/or data signals (29?, 33?). Primary (30?) and secondary (34?) windings are formed on nanostructured laminated (31?) primary and secondary steel cores (32?) having a Curie temperature exceeding an ultra high operating temperature. The operating range can extend from ambient to 250° C. or to in excess of 550° C. or up to 700° C. with a change in inductance of less than 10% in various embodiments.

Abstract: Disclosed herein are a multilayer type inductor including a magnetic layer composition including NiZn ferrite, a multilayer type coil component including a magnetic layer prepared therefrom, and a method for manufacturing the same. According to the present invention, a copper electrode can be used as an internal electrode of a multilayer type coil product, by including NiZn ferrite in the magnetic layer. As copper is used for the internal electrode, material costs can be significantly reduced. Furthermore, the present invention can improve the maximum saturation magnetization value against the NiCuZn ferrite by about 10%, due to exclusion of Cu having weak magnetism, and can be more desirably used in a product employing high current.

Abstract: A bulk material formed on a surface is provided. The bulk material includes a plurality of adhered domains of metal material, substantially all of the domains of the plurality of domains of metal material separated by a predetermined layer of high resistivity insulating material. A first portion of the plurality of domains forms a surface. A second portion of the plurality of domains includes successive domains of metal material progressing from the first portion. Substantially all of the domains in the successive domains each include a first surface and a second surface, the first surface opposing the second surface, the second surface conforming to a shape of progressed domains, and a majority of the domains in the successive domains in the second portion having the first surface comprising a substantially convex surface and the second surface comprising one or more substantially concave surfaces.

Abstract: A flux transfer device includes a first conductive element for generating magnetic flux when energized by an electric current and a second conductive element being concentric with the first conductive element, wherein the second conductive element generates an electric voltage/current in response to changes in the magnetic flux. A first magnetic element is concentric with the first conductive element, such that the magnetic flux generated by the first conductive element displaces at least a portion of the magnetic flux from the first magnetic element, thereby inducing an electric voltage/current in the second conductive element. A third conductive element and a second magnetic element may be positioned concentrically with the first conductive element such that the magnetic flux generated by the first conductive element displaces at least a portion of magnetic flux from the second magnetic element, thereby inducing an electric voltage/current in the third conductive element.

Abstract: In a first mixing process, soft magnetic powders and inorganic insulative powders of 0.4-1.5 wt % relative to the soft magnetic powders are mixed. In the heating process, a mixture through the first mixing process is heated at a temperature of 1000° C. or more and below the sintering temperature of the soft magnetic powders under a non-oxidizing atmosphere. In the granulating process, a silane coupling agent of 0.1-0.5 wt % is added to form an adhesiveness enhancing layer. A silicon resin of 0.5-2.0 wt % is added to the soft magnetic alloy powders having the adhesiveness enhancing layer formed by the silane coupling agent to form a binding layer. A lubricating resin is mixed, and a mixture is pressed and molded to form a mold. In an annealing process, the mold is annealed under a non-oxidizing atmosphere to form a dust core which is used to form a reactor.

Abstract: A transformer as well as a switching power supply and a LED fluorescent lamp applying the same. The transformer comprises: a framework (1), a magnetic core (2) and a winding (3). A reel (10) of the framework (1) is in a hollow column structure with openings at two ends. Lateral walls of the framework extend vertically at the openings at two ends to form an annular slot structure (11). The winding (3) is wound around the annular slot structure (11). The magnetic core is in a structure as Chinese character Ri openings at two ends which covers the reel (10) and the winding (3) from the circumference. The middle part of the magnetic core (2) is inserted into the reel (10). The transformer as well as the switching power supply and the LED fluorescent lamp applying the same has better electromagnetic compatibility, reducing EMI to other devices and power grids.

Abstract: A magnetic device includes a molded dielectric housing having an upper shell and a lower shell that are coupled together to define an interior compartment therebetween. The upper and lower shells include interior sides that oppose each other and include interior surfaces. A magnetic core is disposed within the interior compartment of the housing. Upper electrical traces formed on the interior surface of the upper shell. Lower electrical traces formed on the interior surface of the lower shell. Corresponding upper and lower electrical traces are electrically connected together to form an electrically conductive pattern of wrappings around the magnetic core that is configured to induce a magnetic field about the magnetic core.

Abstract: A magnetic component may include a core including an upper collar, a lower collar, and a spool portion around which a lead wire is wound and external terminals which are directly disposed on the lower collar and to which both ends of the lead wire are connected. The external terminals may include a terminal end fixing portion. The terminal ends of the lead wire may be positioned by the terminal end fixing portions, and may be connected to the external terminals.

Abstract: A composite transformer includes: a transformer core including transformer-core legs; inductor cores including inductor-core legs; windings wound around the transformer-core legs and the inductor-core legs; the transformer core includes a pair of transformer bases connected to both ends of each of the transformer-core legs, and allows formation of closed magnetic circuits in the transformer core; each of the inductor cores includes one of the inductor-core legs, an outer core leg, and a pair of inductor bases connected to both ends of the one of the inductor-core legs and both ends of the outer core leg, and allows formation of a closed magnetic circuit in each inductor core; and the windings are wound in such directions that the magnetic fluxes produced in the transformer-core legs cancel each other in the closed magnetic circuits in the transformer core whichever of the windings is energized.

Abstract: A variety of power inductor structures are obtained by arranging a magnetic material block between a plurality of wires and a plurality of bond fingers or bond finger pairs. The power inductor structure can provide high inductance and high currents and at the same time afford smaller sizes.