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COIL AND CORE

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336 - Inductor devices

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DocumentTitleDate
20100156587THERMOSETTING RESIN COMPOSITION AND COIL FOR ELECTRIC MACHINE - A thermosetting resin composition comprises (A) a polymeric component having at least two polymerizable substituents in the molecule, (B) a compound having at least one polymerizable substituent in the molecule and (C) a living polymerization agent for curing the resin composition.06-24-2010
20100045420Isolation Magnetic Devices Capable Of Handling High Speed Communications - An isolation magnetic device produced by inserting a first end of a wire through a first hole of a core, wrapping the first end of the wire around a first side of the core and inserting the first end of the wire through a second hole of the core. The second hole of the core is spaced from the first hole and has a longitudinal axis extending parallel to a longitudinal axis of the first hole. The device is further produced by inserting a second end of the wire through the second hole of the core, wrapping the second end of the wire around the first side of the core and inserting the second end of the wire through the first hole of the core.02-25-2010
20100102917INDUCTOR - An inductor includes a first core, a second core, a protruding structure, at least two gaps and a conducting wire. The first core has a protruding portion. The second core is disposed opposite to the first core. The protruding structure protrudes from the protruding portion of the first core and toward the second core. The at least two gaps are between the protruding portion of the first core and the second core. The conducting wire winds around at least one of the first and second cores. The conducting wire has a specific resistance value of 1.42 μΩm or lower.04-29-2010
20130069756HAND TOOL DEVICE HAVING AT LEAST ONE CHARGING COIL - 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.03-21-2013
20110006869Inverter Transformer - An embodiment provides an inverter transformer comprising: a first bobbin around which a first coil is wound, the first bobbin comprising a first through hole; a second bobbin around which a second coil is wound, the second bobbin comprising a second through hole; a spacer between the first and the second bobbins; and a core inserted into the first and the second through holes.01-13-2011
20100085139High Current Amorphous Powder Core Inductor - A magnetic component and a method of manufacturing the same. The method comprises the steps of providing at least one shaped-core fabricated from an amorphous powder material, coupling at least a portion of at least one winding to the at least one shaped-core, and pressing the at least one shaped-core with at least a portion of the at least one winding. The magnetic component comprises at least one shaped-core fabricated from an amorphous powder material and at least a portion of at least one winding coupled to the at least one shaped-core, wherein the at least one shaped-core is pressed to at least a portion of the at least one winding. The winding may be preformed, semi-preformed, or non-preformed and may include, but is not limited to, a clip or a coil. The amorphous powder material may be an iron-based or cobalt-based amorphous powder material or a nanoamorphous powder material.04-08-2010
20110050382FLUX CONCENTRATOR AND METHOD OF MAKING A MAGNETIC FLUX CONCENTRATOR - A flux concentrator and method for manufacturing a flux concentrator is provided. The method can include combining powdered soft magnetic material, a binder, a solvent, a internal lubricant; mixing the materials to create a mixture, evaporating the solvent from the mixture, molding the mixture to form a flux concentrator, and curing the flux concentrator. The flux concentrator may be laminated and broken into multiple pieces, which makes the flux concentrator more flexible. Breaking the flux concentrator does not significantly affect the magnetic properties. Since the permeability of the binder is very similar to that of air, adding tiny air gaps between the fractions is not significantly different than adding more binder.03-03-2011
20100265028SOFT MAGNETIC ALLOY AND USES THEREOF - The invention discloses a soft magnetic amorphous alloy and a soft magnetic nanocomposite alloy formed from the amorphous alloy. Both alloys comprise a composition expressed by the following formula: (Fe10-21-2010
20100271166COIL BUS TRANSFORMER AND A METHOD OF MANUFACTURING THE SAME - A transformer having high and low voltage coils mounted to legs of a core is provided. Each low voltage coil includes conductor sheeting having opposing first and second ends and opposing first and second side edges. A pair of coil bus bars is provided for each low voltage coil. Each coil bus bar has first and second portions, wherein the first portion has a width that is more than one and a half times greater than a width of the second portion. Each coil bus bar is secured to the conductor sheeting of its low voltage coil such that the first portion of the coil bus bar is disposed at the first side edge of the conductor sheeting and the second portion of the coil bus bar is disposed at the second side edge of the conductor sheeting.10-28-2010
20100039206METHOD AND DEVICE FOR OPERATING A TRANSFORMER - The invention relates to a method for operating a transformer (02-18-2010
20100039207BOBBIN FOR COIL, COIL WINDING, AND COIL COMPONENT - A coil bobbin has a cylindrical portion around which a coil winding is wound. The coil winding is composed of coil members of an end-defined ring shape coupled to each other. The cylindrical portion is inserted into openings of the coil members along a direction of a center axis of the cylindrical portion and from one end of the cylindrical portion. Flanges protruding outwardly relative to the center axis of the cylindrical portion are integrally provided at the other end of the cylindrical portion and a bobbin-side engagement portion for engagement between the coil bobbin and the coil winding is formed on a face of the flange opposed to the coil member. As the cylindrical portion is inserted into the coil members, the bobbin-side engagement portion comes into engagement with a winding-side engagement portion formed on a back face of the coil member.02-18-2010
20090189729ANTENNA COIL AND ANTENNA DEVICE - A flexible substrate is wound around a magnetic core to define an antenna coil. A receiver coil including a first receiver coil portion and a second receiver coil portion which have opposite winding directions, and a transmitter coil including a first transmitter coil portion and a second transmitter coil portion which have opposite winding directions are provided on the flexible substrate. A region in which the receiver coil is provided and a region in which the transmitter coil is provided at least partially overlap each other when viewed in plan view, and non-coil-wound portions are provided between the first coil portions and second coil portions in the coils.07-30-2009
20100283571ELECTROMAGNETIC APPARATUS USING SHARED FLUX IN A MULTI-LOAD PARALLEL MAGNETIC CIRCUIT AND METHOD OF OPERATION - A flux sharing magnetic circuit has a parallel arrangement of secondary electromagnetic circuits with independent loads. An AC driven primary delivers current to the secondary circuits to maintain charge in their batteries. The batteries deliver DC current to the loads while secondary coils provide battery charging currents to maintain charge in the batteries. When current is not drawn by the battery or the load, flux is delivered to a flux pool in the magnetic circuit so that input AC power drain is reduced.11-11-2010
20090066466Coil System Comprising Eccentrically Coiled Magnetic Substance - The present invention provides a coil system comprising an eccentrically coiled magnetic substance capable of exciting vertical magnetic field components in its center portion and preventing sensitivity of the coil system deteriorating in its center. In the coil system comprising a magnetic substance 03-12-2009
20090289751Composite transformer and power converter using same - A composite transformer, having first and second inductors and a transformer, includes a transformer core that has a core leg around which portions of first and second windings are wound, and a base fixing the core leg, a first inductor core that has a core leg around which a portion of the first winding is wound and a base fixing the core leg, and a second inductor core that has a core leg around which a portion of the second winding is wound and a base fixing the core leg. The first and second windings are wound in a manner that flux are cancelled with each other, and are wound around the core leg of the transformer core in a manner alternately overlapping with each other, and are wound around respective core legs of the first and second inductor cores so as to be apart from each other to suppress any interference of magnetic fluxes.11-26-2009
20110169598Reactor part - 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.07-14-2011
20090295531OPTIMIZED LITZ WIRE - A conductive cable for reducing the power losses in components, such as inductors and transformers. The conductive cable includes multiple strands that each include an inner conductor and an outer insulating layer. The conductive cable includes strands of multiple cross-sectional areas (multiple gauges), such that the power losses associated with the skin effect may be reduced. The cross-sectional areas of the strands of the conductive cable may be selected dependent upon the frequency content of the current that they are intended to carry. In the case of a PFC boost converter, the various cross-sectional areas of the strands may be selected to carry the harmonics of and AC power source, as well as higher frequency current caused by a switch associated with the PFC boost converter.12-03-2009
20110267167COIL-TYPE ELECTRONIC COMPONENT AND ITS MANUFACTURING METHOD - A coil-type electronic component has a coil inside or on the surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer.11-03-2011
20110006870Coil Component And Method For Manufacturing Coil Component - In an inductor including a coil, a drum type core constituted by a soft magnetic metal material and a resin material, and a filling member constituted by a soft magnetic metal material and a resin material in which a magnetic flux excited by aforesaid coil goes through aforesaid drum type core and aforesaid filling member serially, the present invention constitutes an inductor, wherein aforesaid drum type core is constituted by injection molding so as to include a receiving portion, aforesaid coil is arranged in aforesaid receiving portion, and aforesaid filling member is filled therein.01-13-2011
20130120099TRANSFORMER - 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.05-16-2013
20110205008HIGH CURRENT INDUCTOR ASSEMBLY - An inductor winding includes first, second, and third arms, a middle portion extending between and connected to at least two of the first, second, and third arms and arranged to support a winding core mounted thereon, and first, second, and third legs extending downwardly from the first, second and third arms, respectively, and arranged to be mounted on a circuit board. The first, second, and third legs are arranged to provide three-point contact with the circuit board, and the inductor winding is arranged to provide a space between a bottom surface of the winding core mounted on the middle portion and an upper surface of electronic components mounted on the circuit board.08-25-2011
20090179724Power Inductor - The invention is to provide an inductor which can flow a high frequency current and a large current. An inductor for a power source used in a power source circuit flowing a current larger than a current in an inductor for signal transmission comprises a core provided with a center core for winding and a coil provided with the centre core and a conductive member wound around the center core. A frequency band of a current applied to the coil is from 5 MHz to 10 MHz and a frequency ratio of a standard frequency lower than the used frequency band to the used frequency band is approximately equal to an alternative current resistance ratio of an alternative current resistance at the standard frequency to an alternative current resistance at the used frequency band.07-16-2009
20110205009WOVEN WIRE, INDUCTIVE DEVICES, AND METHODS OF MANUFACTURING - Low-cost, high performance woven conductors and associated inductive apparatus, and methods for manufacturing and utilizing the same. In one embodiment, an eight (08-25-2011
20120268231Hot/cold forming and assembling magnetic component - The technology of this invention is to combine the advantage of cold and hot forming magnetic component. Use the advantage of hot forming technology which is 3D complex forming, and use hot-forming magnetic powder to form magnetic component body. Single or multiple rod spaces including T shape, “I” shape or rod shape are previously reserved, and advantage of cold forming technology is used to produce core rod in the highest density of magnetic line, in order to provide the source of high induction magnetic line. Next, assemble single or multiple core rods with body, in order to obtain assembling magnetic component of final desiring magnetic induction.10-25-2012
20090201118Electromagnetic current limiter device - An electromagnetic current limiter device comprising at least one ferromagnetic core having a central opening; at least one winding of electric conducting material wound on the core; a portion of said winding passing through said opening; an input terminal for receiving alternating current for supplying said alternating current to said winding; an output terminal for supplying current limited current to an external load; and a plurality of predetermined aligned magnetic domains defined in said core for limiting the current to said output terminal.08-13-2009
20090243785READER ANTENNA FOR USE WITH RFID TRANSPONDER - The invention relates to a reader antenna for use with radio frequency identification (RF ID) transponders. A reader and the transponder are connected to one another via a wireless interface. It is the object of the invention to provide a reader antenna for RFID systems whose transmission range is increased in comparison with a transmission range in a normal air environment without metallic influence with otherwise the same electrical and electromagnetic parameters. The reader antenna in accordance with the invention is provided with an antenna which is formed with a coil having at least one winding. The coil lies on a side of a carrier remote from a transponder and the carrier is made exclusively of a soft magnetic material.10-01-2009
20090251272INDUCTOR - An inductor includes a magnetic core having high permeability or high saturation property; and a coil element embedded in the magnetic core, wherein the magnetic core has a polygon, with 5 or more, pillar shape.10-08-2009
20120105189IGNITION COIL FOR SPARK PLUGS - An ignition coil includes a body and a magnetic conductive socket is located in the space of the body. An iron core is located in the magnetic conductive socket and has a first end with which a permanent magnet is in contact. An initial coil and a sub-coil are located between the magnetic conductive socket and the iron core. A magnetic conductive member is located in the space of the body and located close to the permanent magnet. The magnetic conductive member is located close to the magnetic conductive socket so that the magnetic lines of the magnetic conductive member are extended to increase the magnetic flux to make the sub-coil to induct higher voltage.05-03-2012
20090121819Magnetic coupler - A magnetic coupler having higher response is provided. The magnetic coupler includes a thin film coil wound in a first layer; a first MR element being disposed in a second layer, and detecting an induced magnetic field generated by a signal current flowing through the thin film coil; and yokes being disposed close to the first MR element, and including a soft magnetic material. The first MR element is disposed in a position corresponding to a linear region of the thin film coil in a stacking direction. The yokes are disposed at both of an inner turn side and an outer turn side of the thin film coil in a manner of interposing the first MR element in the second layer. Thus, reduction in intensity of the induced magnetic field is suppressed, and intensity distribution of the induced magnetic field becomes flatter.05-14-2009
20090278652COIL COMPONENT - A coil component has a first core with a winding core portion, a second core with a winding core portion, a first coil wound on the winding core portion of the first core, and a second coil wound on the winding core portion of the second core. A part of the first coil is wound on the winding core portion of the second core. The first core and the second core are arranged as magnetically separated from each other.11-12-2009
20120032770COIL BOBBIN FOR SUPERCONDUCTING MAGNETIC ENERGY STORAGE - Disclosed herein is a coil bobbin for a superconducting magnetic energy storage. The coil bobbin includes coil bobbin frames, superconducting coils, first support plates, second support plates and a center frame. The coil bobbin frames are provided in such a way as to face each other. The superconducting coils are wound around the respective coil bobbin frames. The first support plates are provided on surfaces of the respective coil bobbin frames that are on faces that are opposite to the surfaces between the coil bobbin frames that face each other. The second support plates are provided on the respective facing surfaces of the coil bobbin frames. The center frame is disposed between the second support plates and has an annular plate shape having a thickness that is gradually reduced towards a center of the toroidal arrangement.02-09-2012
20100188184INDUCTOR AND CORE MEMBER THEREOF - An inductor comprises a core member including a groove portion and a wire-winding portion. The groove portion extends through the wire-winding portion along the direction of the wire-winding axis, and the groove portion's cross-sectional area perpendicular to the wire-winding axis is in the range of from one-third to one-half of the core member's entire cross-sectional area perpendicular to the wire winding axis.07-29-2010
20110032068Coupled Inductor With Improved Leakage Inductance Control - An M-winding coupled inductor includes a first end magnetic element, a second end magnetic element, M connecting magnetic elements, and M windings. M is an integer greater than one. Each connecting magnetic element is disposed between and connects the first and second end magnetic elements. Each winding is wound at least partially around a respective one of the M connecting magnetic elements. The coupled inductor further includes at least one top magnetic element adjacent to and extending at least partially over at least two of the M connecting magnetic elements to provide a magnetic flux path between the first and second end magnetic elements. The inductor may be included in an M-phase power supply, and the power supply may at least partially power a computer processor.02-10-2011
20100295651Power transmission transformer for noncontact power transfer device - The present invention provides a power transmission transformer of which workability in implementing and reliability of connection are considered in a noncontact power transfer device using individual self-oscillation circuits. The power transmission transformer for a noncontact power transfer device including a transmitting coil L11-25-2010
20100308950CHOKE - A choke including a core and a hollow coil is provided. The core includes a first core body and a second core body. The first core body includes a pillar. The second core body is a flat plate and has an opening. An end of the pillar is suitable to be disposed in the opening and joined to the same. The hollow coil is fitted on the pillar.12-09-2010
20100301986REACTOR APPARATUS FOR A RAILWAY VEHICLE - A reactor apparatus for a railway vehicle includes a coil assembly, a side cover, through bolts inserted into the coil assembly, cover supporting members, a pair of frames, and ribs that reinforce the pair of frames. A support/fixation section of each frame is fixed to an under surface of a vehicle pedestal. The pair of the frames are disposed on both sides of the coil assembly, and support the through bolts and the cover supporting member. For each rib, leg members that extend from corresponding reinforcing body are penetrated into and welded to the corresponding frame. For each cover supporting member, a leg member that extends from corresponding cover supporting body is penetrated into and welded to the corresponding frame.12-02-2010
20110018675SINTERED FERRITE MATERIAL, WIRE WOUND COMPONENT, AND PRODUCING METHOD OF SINTERED FERRITE MATERIAL - A sintered ferrite material, which is obtained by adding Bi01-27-2011
20110025446APPARATUS AND METHOD FOR EFFECTING INDUCTIVE COUPLING AMONG A PLURALITY OF ELECTRICAL ELEMENTS - An apparatus for effecting inductive coupling among a plurality of electrical elements includes: (a) an electrically non-conductive core member oriented about an axis; (b) at least one first electrical element of the plurality of electrical elements substantially nestingly surrounding the core member oriented about the axis; each respective first electrical element being in spaced relation vis-à-vis other first electrical elements in an installed orientation; and (c) at least one second electrical element of the plurality of electrical elements disposed in surrounding relation with respect to the core member about the axis sufficiently proximal with at least one selected said first electrical element in the installed orientation to establish the inductive coupling.02-03-2011
20110115600MAGNETIC CORE AND TRANSFORMER HAVING THE SAME - A magnetic core is disclosed. The magnetic core comprises a first side post with a first inner wall, a second side post opposite to the first side post with a second inner wall, an annular space enclosed by the first inner wall and the second inner wall, a central post with a second axis, and a core base connected with the first post, the second post, and the central post. The annular space comprises a first axis, a first opening, and a second opening. The first opening and the second opening are oppositely and respectively formed between the first side post and the second side post. The second axis of the central post in the annular space is disposed between the first axis and one of the first opening and the second opening.05-19-2011
20100164673Electromagnetically-countered transformer systems and methods - The present invention relates to an electromagnetically-countered system including at least one wave source irradiating harmful electromagnetic waves and at least one counter unit emitting counter electromagnetic waves which are capable of countering the harmful waves by such counter waves. More particularly, the present invention relates to generic counter units of various electromagnetically-countered transformer systems and to various mechanisms for countering the harmful waves by the counter units by, e.g., matching configurations of such counter units with those of the wave sources, matching shapes of the counter waves with shapes of the harmful waves, and the like. The present invention also relates to various methods of countering the harmful waves with the counter waves by such source matching or wave matching and various methods of providing such counter units as well as emitting the counter waves. The present invention also relates to various processes for providing such systems and their counter units. The present invention further relates to various electric and/or magnetic shields which may be used alone and/or in combination with such counter units to minimize irradiation of the harmful waves from the system.07-01-2010
20100164674COMBINED TRANSFORMER AND MULTI-LAMP DRIVING CIRCUIT - The invention discloses a combined transformer. The combined transformer includes a first core, a second core, a first primary coil, a first secondary coil, a second primary coil, and a second secondary coil. The first core includes a first side pillar and a second side pillar. The second core includes a third side pillar and fourth side pillar. The first primary coil winds around the first side pillar. The first secondary coil winds around the third side pillar which corresponds to the first primary coil. The second primary coil winds around the second side pillar. The second secondary coil winds around the fourth side pillar which corresponds to the second primary coil. The first core and the second core form a first magnetic path and a second magnetic path. The first primary coil, the first secondary coil, and the first magnetic path form a first transformer. The second primary coil, the second secondary coil, and the second magnetic path form a second transformer. And, the first transformer and the second transformer are connected in series.07-01-2010
20120119871COIL-TYPE ELECTRONIC COMPONENT AND ITS MANUFACTURING METHOD - A coil-type electronic component has a coil inside or on the surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer.05-17-2012
20120032769TRANSFORMER HAVING LAMINAR TYPE ON LOW VOLTAGE SIDE - A transformer having laminar type on low voltage side is disclosed. The transformer includes a high voltage side part and a low voltage side part. The high voltage side part further includes a first base seat, a first isolator seat having a plurality of isolator grooves, and a plurality of coil sets. The first isolator seat has its one end connect to the first base seat while has its other end surface possess a positioning groove. The plurality of coil sets are wound around the first isolator seat, are corresponding to and are positioned in the plurality of isolator grooves. The low voltage side part further includes a second base seat, a second isolator seat having a central column, and a plurality of sheet body. The second isolator seat has its one end that is connected to the second base seat. The central column has its one end surface position at the positioning groove. Each of the sheet body possesses an opening for containing the central column. The plurality of sheet bodies are mutually laminated and interlaced on the central column.02-09-2012
20110163834APPARATUS AND METHOD FOR REDUCING INDUCTOR SATURATION IN MAGNETIC FIELDS - This document discusses, among other things, an inductive component that can include a core having two portions: (1) a first portion composed of a first material having a first magnetic saturation level; and (2) a second portion composed of a second material selected to provide inductance for the inductive component when an external magnetic field is greater than the first magnetic saturation level. In an example, the first portion can be composed of a material having a relatively low magnetic saturation level (e.g., a ferrite), and the second portion can be composed of a material having a relatively high magnetic saturation level (e.g., a high permeability iron alloy).07-07-2011
20110018674TRANSFORMER, AND APPARATUS AND METHOD FOR MANUFACTURING A TRANSFORMER IRON CORE - A technology for manufacturing a transformer core with laminated structure draws the magnetic sheet materials in parallel from plural winding bodies around which the magnetic sheet material is wound like hoop, cuts the materials at predetermined positions substantially simultaneously to form plural magnetic sheet materials each with a different length, forms a block-shaped laminate by laminating the plural magnetic sheet materials in the order of length, and further laminates the block-shaped laminates in the order of length. The resultant laminate formed by laminating the plural block-shaped laminates are formed into an annular structure so that the longer block-shaped laminate is wound on the outer circumference of the winding core and the shorter block-shaped laminate is wound on the inner circumference, and abutting and overlapping both ends of the respective magnetic sheet materials so that the abutting or the overlapped portions are located at circumferentially different positions between the adjoining layers of the magnetic materials.01-27-2011
20120146759COIL PART AND METHOD FOR PRODUCING SAME - A coil component comprising a first split magnetic core and a second split magnetic core, each having an outer core leg, an inner core leg and a back yoke connecting the outer core leg and the inner core leg, and a coil block mounted to the inner core leg, wherein the outer core leg has a sectional area smaller than a sectional area of the inner core leg, a density of magnetic body in the outer core leg is different from a density of the magnetic body in any of the inner core leg and the back yoke, and the first split magnetic core and the second split magnetic core are butted against each other to form a magnetic core of a closed magnetic circuit.06-14-2012
20110095858CONVERTER ARRANGEMENT - In a converter arrangement (04-28-2011
20130009742MAGNETIC LAYER COMPOSITION, MULTILAYER TYPE COIL COMPONENT, AND METHOD FOR MANUFACTURING THE SAME - 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.01-10-2013
20100214053COMPOSITE TRANSFORMER - A composite transformer includes a bobbin assembly, a magnetic core covering element and a magnetic core assembly. The bobbin assembly includes at least a first connecting part and a first channel, wherein at least a primary winding coil and at least a secondary winding coil are wound around the bobbin assembly. The magnetic core covering element includes a second channel and at least a second connecting part. The at least a second connecting part of the magnetic core covering element is coupled with the at least a first connecting part of the bobbin assembly, so that the magnetic core covering element is combined with the bobbin assembly. The magnetic core assembly is partially embedded into the first channel of the bobbin assembly and the second channel of the magnetic core covering element.08-26-2010
20110260825LAMINATED MAGNETIC COMPONENT AND MANUFACTURE WITH SOFT MAGNETIC POWDER POLYMER COMPOSITE SHEETS - Miniaturized magnetic components for electronic circuit board applications include enhanced magnetic composite sheets facilitating increased direct current capacity and higher inductance values. The components may be manufactured using relatively simple and straightforward lamination processes.10-27-2011
20100194516CORE FOR REACTORS, ITS MANUFACTURING METHOD, AND REACTOR - To provide a core for reactor capable of reducing the eddy current loss and improving the direct current superposition characteristics, a manufacturing method thereof, and a reactor. A core for reactor M is obtained by press molding metallic magnetic particles coated with an insulating coated film, and the metallic magnetic particles have the following compositions: (1) the mean particle size is 1 μm or more and 70 μm or less; (2) the variation coefficient Cv which is a ratio (σ/μ) of the standard deviation (σ) of the particle size and the mean particle size (μ) is 0.40 or less; and (3) the degree of circularity is 0.8 or more and 1.0 or less. On the outside of the insulating coated film, at least one of a heat-resistance imparting protective film and a flexible protective film is further provided as a outer coated film.08-05-2010
20100194517Current-Compensated Choke and Circuit Arrangement With a Current-Compensated Choke - A current-compensated choke features several current paths and includes several windings that are connected in parallel and wound around a common core. The windings preferably are alternately wound on the core in such a way that windings of a common current path are not arranged directly one on top of another.08-05-2010
20100026441STACKED INDUCTIVE DEVICE ASSEMBLIES AND METHODS - Improved inductive electronic apparatus and methods for manufacturing the same. In one exemplary embodiment, the apparatus comprises an inductive device module comprising N inductors and N+1 core elements. The core elements comprise ferrite core pieces that are optionally identical to one another. These core elements are stacked (e.g., in a longitudinal coaxial arrangement) such that the back of one core element associated with a first inductor provides a magnetic flux path for a second inductor. Form-less (bonded) windings are also optionally used to simplify the manufacture of the device, reduce its cost, and allow it to be made more compact (or alternatively additional functionality to be disposed therein). One variant utilizes a termination header for mating to a PCB or other assembly, while another totally avoids the use of the header by directly mating to the PCB.02-04-2010
20120038449COIL-TYPE ELECTRONIC COMPONENT AND ITS MANUFACTURING METHOD - A coil-type electronic component has a coil inside or on an outer surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; the oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via the oxide layer.02-16-2012
20110316662WINDING ARRANGEMENT FOR A TRANSFORMER OR FOR A THROTTLE - A winding arrangement for a transformer or for a reactor is provided. The winding arrangement includes an annular winding cover part disposed on the front face of a winding, wherein a side surface of the winding cover part overlaps a front surface of the winding, wherein the annular winding cover part is designed to be magnetically conductive at least in a partial area and comprises a convex side surface facing away from the winding.12-29-2011
20110316661UNSATURATED POLYESTER RESIN COMPOSITION FOR COIL ADHESION - It is an objective of the present invention to provide a highly adhesive unsaturated polyester resin composition for fixing or immobilizing coils. There is provided an unsaturated polyester resin composition for adhesion of a coil, which includes the ingredients of: A) an unsaturated polyester resin and/or a vinyl ester resin; B) a monomer including a vinyl group as a polymerizable substituent at at least one end thereof; C) an isocyanate; and D) a polymerization initiator.12-29-2011
20120062352FLUX TRANSFER DEVICE - 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.03-15-2012
20120001716TRANSFORMER - There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof and a flange part vertically protruding outwardly from both ends of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an outer bobbin and an inner bobbin inserted into the through-hole of the outer bobbin to thereby be coupled thereto, and the flange part of the bobbin part includes at least one insulating rib protruding from an outer surface thereof in order to reinforce strength thereof.01-05-2012
20120001717TRANSFORMER - There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and external connection terminals protruding from one side of a lower flange part formed at a lower end of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an inner bobbin and an outer bobbin, and the inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are opposed to each other.01-05-2012
20120119870METHOD FOR PRODUCING A DISK WINDING AND DISK WINDING - An method for producing a disk winding having disks arranged alongside one another, includes winding the disk winding and fitting intermediate insulation between adjacent disks simultaneously, and subdividing the insulation into two sub-areas with a connecting conductor that runs from an end of one disk to a start of an adjacent disk along a diagonal within the intermediate insulation. The sub-areas can include a first intermediate area with a triangular cross-section formed below this diagonal and a second intermediate area which has an opposite triangular cross-section and formed above this diagonal.05-17-2012
20100277267MAGNETIC COMPONENTS AND METHODS OF MANUFACTURING THE SAME - Magnetic component assemblies including layered moldable magnetic materials and coils are advantageously utilized in providing surface mount magnetic components such as inductors and transformers.11-04-2010
20110080248DUST CORE AND CHOKE - The present invention provides a dust core including, as principal components, a pulverized powder of an Fe-based amorphous alloy ribbon; and a Cr-containing Fe-based amorphous alloy atomized spherical powder, and the pulverized powder is in the shape of a thin plate having two principal planes opposing each other, and assuming that a minimum dimension along a plane direction of the principal planes is a grain size, the pulverized powder includes a pulverized powder with a grain size more than twice and not more than six times as large as a thickness of the pulverized powder in a proportion of 80 mass % or more of the whole pulverized powder and includes a pulverized powder with a grain size not more than twice as large as the thickness of the pulverized powder in a portion of 20 mass % or less of the whole pulverized powder.04-07-2011
20110080247Inductor and Manufacturing Method Thereof - An inductor includes a core substrate including minute column-like electrical conductors extending between a front surface and a back surface of the core substrate. Each column-like electrical conductor is insulated from adjacent column-like electrical conductors by being surrounded by an insulating material. Insulation layers are formed on the front surface and the back surface of the core substrate, respectively. At least two connection electrical conductors extend through each of the insulation layers. Each connection electrical conductor is electrically connected to a plurality of the column-like electrical conductors. Wirings are formed on each of the insulation layers to connect said connection electrical conductors to each other electrically. The wirings, the connection electrical conductors and the column-like electrical conductors are connected to form a coil in a three-dimensional manner.04-07-2011
20120025942CONTACTLESS POWER TRANSFER SYSTEM - A system, such as a charging system, is provided. The system can include a coil. A connection module can be coupled to the coil and configured to allow the coil to communicate with an energy source to generate a magnetic field. A field-focusing element can be included, the field-focusing element acting to focus the magnetic field when the magnetic field varies in time at a predetermined rate. In one embodiment, the field-focusing element may be configured to focus the magnetic field in an area separated from the coil by at least about 5 cm.02-02-2012
20120105190REACTOR - Provided is a reactor that enables high inductance to be generated with stability in a wide current range, while minimizing noise, processing cost, and eddy-current loss. The reactor (D05-03-2012
20110115599WINDING INDUCTOR AND PROCESS FOR MANUFACTURING THE SAME - The present invention provides an inductor having high DC bias characteristics using a Fe alloy core and provides a method for manufacturing the same. The present invention relates to a wire-wound inductor which includes: a wire-wound inductor core obtained by grinding a compression molded mixed magnetic material powder including magnetic substance powder mixed with binder; and a metal conductive wire wound around a groove section of the wire-wound inductor core. For example, the magnetic substance powder has content ratio of 4 to 13 wt % of Si; 4 to 7 wt % of Al; the balance Fe; and unavoidable impurity. The magnetic substance powder has particle diameter distribution in which equal to or greater than 90% of the magnetic substance powder has particle diameter equal to or lower than 75 μm.05-19-2011
20100289609ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF - An electronic device including a magnetic body and a wire is provided. The magnetic body has a first magnetic powder and a second magnetic powder mixed with the first magnetic powder. The Vicker's Hardness of the first magnetic powder is greater than that of the second magnetic powder and the mean particle diameter of the first magnetic powder is greater than that of the second magnetic powder.11-18-2010
20100245016REACTOR FOR ELECTRICAL DEVICES - A reactor includes a tubular coil and a core. The coil generates magnetic flux when a current is supplied thereto. The core is made of magnetic powder-containing resin, and is arranged to cover the coil. An entire surface of the coil is covered with an insulation coating. The insulation coating has corner portions that cover corner portions of the coil. The corner portions of the coil are formed between two opposing end surfaces (axial end surfaces) of the coil and an inner circumference surface of the coil, and between the two axial end surfaces of the coil and an outer circumference surface of the coil, when viewed in a cross section that is perpendicular to the direction the coil is wound. Each corner portion includes a curved surface portion formed with a circularly curved surface portion having a curvature radius of 0.2 mm or more. A minimum thickness of the corner portion is 0.2 mm or more. The elastic modulus of the core is 5 to 25 GPa.09-30-2010
20100245015HOT-FORMING FABRICATION METHOD AND PRODUCT OF MAGNETIC COMPONENT - A hot-forming fabrication method of a magnetic component and a hot-formed magnetic component fabricated by the same are provided. More particularly, a magnetic powder hot-forming technique is provided, along with a hot-formed magnetic component fabricated by the hot-forming technique so as to have high inductance, low core loss, and high electromagnetic wave shielding efficiency. A low core low-core loss core for use in a common basic magnetic component is enclosed and thereby shielded by a single-layer or multi-layer EMI shielding material, thus producing an enhanced magnetic component with high inductance, low core loss, and low electromagnetic wave interference.09-30-2010
20120126928REACTOR AND REACTOR-USE COMPONENT - Provided is a reactor and a reactor component that can prevent cracking of a resin portion that is interposed between a coil and an internal core portion. The reactor includes a coil 05-24-2012
20090058591WIRE WOUND ELECTRONIC PART - A wire wound electronic part includes a ferrite core comprising ferrite having a columnar wire wound core and flanges formed at both ends thereof, a coil conductor wound around the wire wound core of the ferrite core, and at least a pair of terminal electrodes having a Cu conduction layer disposed to the outer surface of the flange, in which both ends of the coil conductor wound around the wire wound core are conductively connected to the terminal electrodes. The terminal electrode is formed by coating an electrode paste containing a Cu powder and a glass frit to the outer surface of the ferrite core, and then applying a heat treatment to the ferrite core. There is a reaction layer of a portion of the ferrite core and the glass frit at a boundary between the ferrite core and the Cu conduction layer. The terminal electrodes has the peel strength identical with that of an existent Ag terminal electrode, without forming a plate layer.03-05-2009
20120169449INDUCTOR - An inductor includes a first core, a conducting wire, a second core and a first lead frame. There is an accommodating space formed on a first side of the first core and there is a recess portion formed on a second side of the first core, wherein the first side is opposite to the second side. The first core has a first height. The conducting wire is disposed in the accommodating space. The second core is disposed on the first side of the first core and covers the accommodating space. The first lead frame has an embedded portion embedded in the recess portion. The embedded portion has a second height. After embedding the embedded portion in the recess portion of the first core, a total height of the embedded portion and the first core is smaller than the sum of the first height and the second height.07-05-2012
20120176215Coil Component - The present invention provides a coil component provided with a magnetic core and a coil wound around the magnetic core. The coil component of the present invention is provided with an eddy-current generation member using any one of or any combination of a tape member using a conductive metallic foil, a thin film using a conductive metal material, a ribbon using a conductive metal material, a coated film using a conductive metal material, and a plate member using a conductive metal material. In a coil antenna adopting the coil component of the present invention, it is enabled to adjust the Q value to a desired value without increasing the direct current resistance value.07-12-2012
20120299687ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF - An electronic device including a magnetic body and a wire is provided. The magnetic body has a first magnetic powder and a second magnetic powder mixed with the first magnetic powder. The Vicker's Hardness of the first magnetic powder is greater than that of the second magnetic powder and the mean particle diameter of the first magnetic powder is greater than that of the second magnetic powder.11-29-2012
20120299688Resin Composition, Electronic Component using the Same and Production Method Therefor - Disclosed is a resin composition, which comprises a thermosetting resin contained therein in an amount of 40 volume % or more, and a wax contained therein in an amount of 5 to 30 volume %, wherein: the thermosetting resin exists in liquid form at room temperature; and the wax exists in powder form at room temperature and has a melting point of 70 to 150° C., and wherein the resin composition has a viscosity of 50000 to 150000 mPa.s as measured at room temperature.11-29-2012
20100271165COIL CAPABLE OF GENERATING A MAGNETIC FIELD AND METHOD OF MANUFACTURING SAID COIL - Coil capable of generating a magnetic field and method for manufacturing said coil. The present invention relates to a method for manufacturing a coil capable of generating a magnetic field known as an intense field when an electric current passes through it, comprising a formation step of turns in a cylindrical tube, wherein it comprises at least one formation step of at least one boss on at least one turn of said coil and at least one recess of a corresponding form in an adjacent turn, such that the boss extends perpendicularly to said recess, for absorbing the mechanical stresses caused by the electromagnetic forces and mechanical forces of thermal origin. Another object of the invention relates to a coil capable of generating a magnetic field known as an intense field when an electric current passes through it, said coil comprising a tube made of a conductive material and cut out along an overall helicoidal cut-out line, wherein at least one turn of the coil comprises at least one boss extending perpendicularly to a recess of a corresponding form in an adjacent turn.10-28-2010
20100271164CHOKE COIL FOR INTERLEAVED PFC CIRCUIT - A choke coil includes a pair of E-shaped cores, first and second coil windings around central legs of the E-shaped cores, and an I-shaped core. Side legs of the pair of E-shaped cores are positioned face to face with each other with the I-shaped core intervening. There are gaps between the I-shaped core and each central leg. Electrical currents flow in the first and second coil windings in the same direction, and magnetic fluxes generated by each of the electrical currents are in opposite directions in the I-shaped core.10-28-2010
20120182115BUILDING-BLOCK-COMBINED-TYPE HIGH POWER TRANSFORMER - A building-block-combined-type high power transformer includes a first iron core body contacting a second iron core body, a plurality of plate bodies, and a plurality of isolating bodies. The first iron core body and the second iron core body have a first side wing part and a second side wing part respectively at both sides thereof. Both the first side wing part and the second side wing part respectively have a first open channel and a second open channel formed there between. Each of the plate bodies is positioned in both the first open channel and second open channel. Each of the isolating bodies is positioned between first plate bodies and second plate bodies of the plurality of plate bodies. The first side wing part and the second side wing part are inserted through an open hole of corresponding plate bodies and a through hole of corresponding isolating bodies.07-19-2012
20100219928POWDER BASED SOFT MAGNETIC INDUCTIVE COMPONENT, AND A METHOD AND A DEVICE FOR PRODUCTION THEREOF - A process for production of a packed soft magnetic component, comprises the steps of: —preparing a rotational mould, consisting of at least one mould cavity connected to a driven rotational axle, arranging a coil in the mould, filling the at least one mould cavity with a binder and a soft magnetic, metallic material in the form of a powder, —driving the axle for rotation of said at least one mould, whereby the soft magnetic, metallic material is packed by centrifugal forces to one side of said at least one mould cavity, mixed with the binder, thus forming a component comprising a soft magnetic composite with a coil embedded therein.09-02-2010
20120229244DUST CORE AND METHOD FOR PRODUCING THE SAME - There are provided a dust core in which, even if the surface of a heat-treated compact is ground, the insulation between soft magnetic particles on the ground surface can be ensured in the grinding step, and a method for producing the dust core.09-13-2012
20130181802SOFT MAGNETIC POWDER, GRANULATED POWDER, DUST CORE, ELECTROMAGNETIC COMPONENT, AND METHOD FOR PRODUCING DUST CORE - 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.07-18-2013
20110121935COMPOSITE MAGNETIC CORE ASSEMBLY, MAGNETIC ELEMENT AND FABRICATING METHOD THEREOF - 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.05-26-2011
20100328013TRANSFORMER - There is provided a transformer including cores combined with a bobbin wound with coils, and center leg parts extended from the cores and contacting each other by being inserted into both ends of the bobbin, wherein stress dispersion hole, dispersing stress occurring according to temperature variations around the cores, is formed at the edge of center leg connection parts of the cores from which the center leg parts are extended.12-30-2010
20110227690SOFT MAGNETIC MATERIAL, COMPACT, DUST CORE, ELECTROMAGNETIC COMPONENT, METHOD OF PRODUCING SOFT MAGNETIC MATERIAL, AND METHOD OF PRODUCING DUST CORE - A soft magnetic material includes a plurality of magnetic particles, a binder, and a lubricant. The binder binds the plurality of magnetic particles. The lubricant is contained in the aggregate of the bound magnetic particles, and has a melting point less than or equal to 100° C. The method of producing a soft magnetic material includes the steps of forming an additive by mixing a binder and a lubricant including fatty acid monoamide, and binding the plurality of magnetic particles by the additive.09-22-2011
20120326830REACTOR AND METHOD FOR MANUFACTURING SAME - 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.12-27-2012
20120139686MAGNETIC DEVICE AND ASSEMBLING METHOD THEREOF - A magnetic device includes a magnetic core assembly and at least one conductive winding assembly. The magnetic core assembly includes a first magnetic core and a second magnetic core. The first magnetic core includes a first magnetic slab, a first lateral post and a second lateral post. The first lateral post and the second lateral post are disposed on opposite sides of the first magnetic slab so that an accommodating space is collectively defined by the first magnetic slab, the first lateral post and the second lateral post. The second magnetic core includes a second magnetic slab and a middle post. The middle post is attached on the second magnetic slab, and received within the accommodating space of the first magnetic core. The at least one conductive winding assembly is directly wound around the middle post of the second magnetic core.06-07-2012
20130176098MAGNETIC MATERIAL AND COIL COMPONENT USING THE SAME - A magnetic material constituted by a grain compact 07-11-2013
20100085140LOW-LOSS FERRITE AND ELECTRONIC DEVICE FORMED BY SUCH FERRITE - A low-loss ferrite comprising as main components 46.5-49.5% by mol of Fe04-08-2010
20130135077RESONATOR AND WIRELESS POWER TRANSMISSION DEVICE - 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.05-30-2013
20130093561MAGNETIC CORE AND INDUCTION DEVICE - 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.04-18-2013
20090189728AMORPHOUS TRANSFORMER FOR ELECTRIC POWER SUPPLY - This invention provides an amorphous transformer for electric power supply, using a magnetic core formed of an amorphous alloy material, which, as compared with the conventional amorphous alloy material, has a lower annealing temperature and a higher level of magnetic properties. The amorphous transformer for electric power supply is provided with a magnetic core of a thin band of an amorphous alloy and a winding wire. The iron core has been annealed under such conditions that the iron core center part temperature during annealing after iron core molding is 300 to 340° C. and the holding time is not less than 0.5 hr. Further, for the iron core, the magnetic field intensity during annealing after the iron core molding is not less than 800 A/m.07-30-2009
20110221562BOBBIN OF TRANSFORMER - A bobbin of a transformer includes a main body and plural connecting bases. The main body has two side plates. The two side plates are respectively disposed on two opposite sides of the main body. A winding section is defined within the two side plates for winding a winding coil. The plural connecting bases are disposed on the two opposite sides of the main body and connected with the side plates. Plural wire-arranging grooves are formed in a bottom surface of each connecting base. Each side plate has an inner recess in communication with a corresponding wire-arranging groove. An initial winding segment of the winding coil is accommodated within the wire-arranging groove and the inner recess, thereby preventing the winding coil from rubbing against the initial winding segment during the winding coil is wound on the winding section.09-15-2011
20110248813TRANSFORMER - A transformer includes the first iron core having a plurality of legs arranged spaced apart from each other; a plurality of high-voltage side coils wound around the plurality of legs, respectively, and receiving a common single-phase AC power; and a plurality of low-voltage side coils provided corresponding to the high-voltage side coils, magnetically coupled to the corresponding high-voltage side coils, and wound around the plurality of legs, respectively. The high-voltage side coils and the corresponding low-voltage side coils constitute a plurality of coil groups. The transformer further includes the second iron core provided between the coil groups adjacent to each other.10-13-2011
20110248812CURRENT-CONTROLLED VARIABLE INDUCTOR - A variable inductor comprises one or more magnetic cores providing magnetic flux paths. An inductor coil is wound around one or more inductor sections of the one or more magnetic cores. An inductor magnetic flux flows through one or more closed flux paths along the inductor sections of the magnetic core. A control coil is wound around one or more control sections of the one or more magnetic cores. A control magnetic flux flows through one or more closed flux paths along the control sections of the magnetic core. Under this arrangement, the inductor magnetic flux substantially does not flow through the control sections of the magnetic core and the control magnetic flux substantially does not flow through the inductor sections of the magnetic core. The closed flux paths associated with the inductor magnetic flux and the closed flux paths associated with the control magnetic flux share one or more common sections of the magnetic core not including the control sections and inductor sections. The inductance of said variable inductor is varied by varying said control magnetic flux.10-13-2011
20100301985HIGH-VOLTAGE POWER GENERATION SYSTEM AND PACKAGE - A power generation system comprises a power source, a transformer module for converting a low voltage from the power source into a higher voltage, and a voltage-multiplier module for amplifying higher voltage from the transformer module. The transformer module comprises a number N of transformer units. Each transformer unit comprises at least one transformer, and each transformer comprises a magnetic core, a primary winding, and a secondary winding. Primary windings of the transformers in the transformer module are electrically coupled in parallel to the power source, secondary windings of the transformers of each transformer unit comprise a pair of output terminal, and N is equal to or greater than two. The voltage-multiplier module comprises the number N of multipliers. Each multiplier module comprises a positive and a negative input terminal, and a positive and a negative output terminal. Positive and negative terminals of each multiplier are electrically coupled to the positive and negative output terminals of a corresponding transformer unit, and positive and negative output terminals of the multipliers are connected in series.12-02-2010
20120274438LAMINATED INDUCTOR - A laminated inductor includes a laminate constituted by multiple magnetic material layers, and coil conductors formed in a spiral pattern in the laminate. The magnetic material layers are layers of a magnetic material having multiple metal grains constituted by a Fe—Si-M soft magnetic alloy and oxide film formed on the surface of the metal grains. The magnetic material has bonding portions where adjacent metal grains are bonded via the oxide film formed on the respective surfaces of the adjacent metal grains as well as bonding portions of metal grains bonding to each other in areas where no oxide film is present, and at least some of the voids generated by agglomeration of the metal grains are filled with a resin material.11-01-2012
20120274437MAGNETIC MATERIAL AND COIL COMPONENT USING THE SAME - 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.11-01-2012
20110234360WOUND IRON CORE FOR STATIC APPARATUS, AMORPHOUS TRANSFORMER AND COIL WINDING FRAME FOR TRANSFORMER - Disclosed is a wound iron core (09-29-2011
20130154788COIL COMPONENT - 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 D06-20-2013
20130120100COIL COMPONENT - 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.05-16-2013
20110309906COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME - A coil component, in which a space on an outer periphery of a winding interposed between a pair of flange portion is coated with a resin with magnetic powder, has a problem of long-term reliability that a thermosetting resin expands and contracts due to change in a temperature and the flange portions are fatigued to be broken.12-22-2011
20120081204TRANSFORMER CONSTRUCTION - 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.04-05-2012

Patent applications in class COIL AND CORE