Abstract: A method for forming an armature for an electric motor includes: securing a lamination stack having slots therein on an armature shaft, securing a commutator on one end of the armature shaft, winding magnet wires in the slots in the lamination stack and securing ends of the magnet wires to the commutator, the magnet wires having armature lead wires that extend from the slots to the commutator; and molding plastic over the magnet wires to encase at least the armature lead wires in plastic. Alternatively and/or additionally, plastic is molded over the magnet wires to retain them in the slots and to support the armature lead wires and prevent them from vibrating when the armature rotates during operation.

Abstract: The present invention relates to a winding and a method for preparing a winding of inductive devices. The winding includes at least a plurality of layers, where each layer includes at least one conductive loop; the conductive loops are electrically connected to form a winding; and the conductive loop or the portion of the conductive loop of at least one layer is not spatially aligned with the conductive loop or the portion of the conductive loop of at least one another layer. Preferably, except for the conductive loop that includes a center tap, other conductive loops are each divided into 2N loop sections, each loop section is electrically connected to a corresponding loop section of another layer through a pair of crossover conductive via plugs, so as to form N windings, where N is an integer greater than or equal to 1.

Abstract: A method for producing a gradient coil assembly for a magnetic resonance imaging system includes applying a number of primary gradient coils and a number of secondary gradient coils to a winding mandrel to form the gradient coil assembly. A control coil arrangement is associated with the winding mandrel. During an intermediate check before completion of the gradient coil assembly, at least one coupling inductance value between the control coil arrangement and at least one of the primary gradient coils and/or at least one of the secondary gradient coils is determined. An arrangement of the relevant gradient coils on the winding mandrel is corrected as a function of the at least one coupling inductance value.

Abstract: An arrangement for providing a vehicle with electric energy includes a receiving device adapted to receive the magnetic component of an alternating electromagnetic field and to produce an alternating electric current by magnetic induction. The receiving device includes at least one phase line, each phase line being adapted to carry a phase of the alternating electric current. The at least one phase line forms a line arrangement which extends in a longitudinal direction transversely to a flux line direction, in which magnetic flux lines of the electromagnetic field penetrate the line arrangement, so that the line arrangement has a first end and a second end, the ends being located at opposite ends of the line arrangement in the longitudinal direction. The width of the line arrangement, gradually decreases along the extension of the line arrangement towards the first end and/or towards the second end.

Abstract: A three dimensional soft magnetic metal mass suitable for milling is formed wrapping soft magnetic metal ribbon into a three dimensional shape and then applying adhesive to the three dimensional shape. The adhesive permeates the three dimensional shape. The adhesive is then cured. If the soft magnetic metal mass is made as a toroid, then it could be processed into an electromechanical component. The electro-mechanical component would then be suitable for use in very high frequency electric motors.

Abstract: A method for preparing a field coil winding assembly including cleaning a plurality of copper coils followed by developing, after the cleaning, a copper oxide layer on each of the copper coils by oxidizing each of the copper coils in a solution. After the developing, each of the copper coils is rinsed followed by drying. After the drying, a turn insulation system is applied to each of the copper coils. The turn insulation system includes a turn insulation and an adhesive. The turn insulation includes at least one of a glass fiber re-enforced polyamideimide, a glass fiber re-enforced polyester, or a glass fiber re-enforced high temperature novolac epoxy. After the applying, each of the copper coils with the turn insulation system is cured. The plurality of copper coils with the turn insulation system are stacked in each of a plurality of rotor slots in a rotor.

Abstract: A coil assembly is provided, comprising a coil former, a coil, and a connection block which is pivotally joined to the coil former. The coil is wound while the connection block is pivoted away, the winding wire ends are soldered to the terminal pins, and the connection block is pivoted close to the coil.

Abstract: A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5?a?83 at. %, 0.5?b?6 at. %, 12?c?16.5 at. %, 0.01?d?1 at. % with a+b+c+d=100 and incidental impurities, the ribbon being cast from a molten state of the alloy with a molten alloy surface tension of greater than or equal to 1.1 N/m on a chill body surface; the ribbon having a ribbon length, a ribbon thickness, and a ribbon surface facing the chill body surface; the ribbon having ribbon surface protrusions being formed on the ribbon surface facing the chill body surface; the ribbon surface protrusions being measured in terms of a protrusion height and a number of protrusions; the protrusion height exceeding 3 ?m and less than four times the ribbon thickness, and the number of protrusions being less than 10 within 1.5 m of the cast ribbon length; and the alloy ribbon in its annealed straight strip form having a saturation magnetic induction exceeding 1.

Abstract: Systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote systems such as electric vehicles are disclosed. In one aspect an induction coil is provided comprising a plurality of substantially co-planar coils formed from one or more lengths of conducting material, each length of conducting material being electrically connectable at each end to a power source or battery, and wherein at least one of the lengths of conducting material is continuously wound around two or more of the coils. In another aspect, a method is provided for forming such an induction coil. In yet another aspect, a switching device is operable to alter the configuration of the coils, for example in response to a detected characteristic of another induction coil or device coupled thereto.

Abstract: A transformer core manufacturing apparatus for manufacturing an annular transformer core having thin plates formed of magnetic materials laminated includes an uncoiler unit which allows a plurality of uncoilers each having a thin plate magnetic material coiled hoop-like to uncoil the magnetic material, a carrier unit for guiding a plurality of the magnetic materials uncoiled from the plurality of the uncoilers as a single group of magnetic body, a first alignment unit for aligning the carried group of the single magnetic body in a width direction, a cut-off unit for cutting the magnetic body aligned by the first alignment unit in a predetermined dimension, a laminating unit for laminating a plurality of the groups of the magnetic body cut by the cut-off unit, a second alignment unit for aligning the magnetic body laminated on the laminating unit, and a control unit for controlling operations of the above cited units.

Abstract: Embodiments of the invention provide a coil unit for a thin film inductor, a manufacturing method of a coil unit for a thin film inductor, a thin film inductor, and a manufacturing method of a thin film inductor. According to an embodiment, there is provided a coil unit for a thin film inductor. The coil unit includes an insulator having a dual insulating layer of different materials, and coil patterns respectively embedded in upper and lower surfaces of the insulator. The coil patterns include a coil pattern formed of a plurality of plating layers.

Abstract: A method for making a magnetic assembly comprises the following steps: twisting a first to eighth magnetic wires to form a bundle of wires having a first end and an opposite second end; providing a magnetic core; winding the bundle of magnetic wires around the magnetic core; sorting the first end and the second end of the bundle of wires to form individual first ends and individual second ends of the first to eighth wires; picking out the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire to form a centre tap of a primary coil of a transformer; and picking out the second ends of the fifth wire and the sixth wire, and the first ends of the seventh wire and the eighth wire to form a centre tap of a secondary coil of the transformer.

Abstract: A coil substrate includes a substrate, a coil-shaped wiring provided on one surface of the substrate, the coil-shaped wiring including adjacent parts provided adjacent to each other, and an insulating layer formed between the adjacent parts of the coil-shaped wiring. The coil-shaped wiring includes a first wiring, and a second wiring that is layered on the first wiring and has a thickness greater than a thickness of the first wiring. A space is provided between a side surface of the first wiring and the insulating layer. The second wiring fills the space and covers the first wiring. Both side surfaces of the second wiring contact the insulating layer.

Abstract: An RF transformer is provided. The RF transformer includes a ferrite core and a winding coil structure formed around the ferrite core. The winding coil structure is in electrical contact with a center portion of the ferrite core. The winding coil structure is essentially electrically and physically spaced from external portions of the ferrite core.

Abstract: A composite material is disclosed for use in a high-voltage device having a high-voltage electrical conductor, the material containing a polymeric matrix and at least one fiber embedded in the polymeric matrix, the fibers having an average diameter of less than about 500 nm.

Abstract: An integrated circuit transformer structure includes at least two conductor groups stacked in parallel in different layers. A first spiral track is formed in the at least two conductor groups, the first spiral track included first turns of a first radius within each of the at least two conductor groups, and second turns of a second radius within each of the at least two conductor groups, the first and second turns being electrically connected. A second spiral track is formed in the at least two conductor groups, the second spiral track including third turns of a third radius within each of the at least two conductor groups and disposed in a same plane between the first and second turns in each of the at least two conductor groups.

Abstract: Disclosed herein is a thin film type inductor having a coil wiring of a high aspect ratio, including: a substrate on which a through hole of a coil pattern is formed; and a metal layer filled in the through hole.

Abstract: A magnetic assembly to receive current having a high current and high frequency includes a transformer, at least one resonant inductor, and at least one auxiliary inductor. The resonant inductor is in electrical communication with the transformer, and the auxiliary inductor is in electrical communication with the resonant inductor. The magnetic assembly further includes at least one conductor having a first end coupled to the auxiliary inductor and a second end coupled to the transformer. The conductor extends continuously between the first and second ends without terminating to form an auxiliary winding of the auxiliary inductor, a resonant winding of the resonant inductor, and at least one primary winding of the transformer.

Abstract: A method for manufacturing a coil that is formed by winding a conductor in a loop shape and stacking loops of the conductor and that includes a slot placement portion to be placed in a slot of a stator core, and a coil end placement portion to be placed outside the slot. The method preferably involves a winding step, a protrusion forming step, a crank forming step, an opening step, and an arc forming step. The winding step forms a winding having slot placement and coil end placement portions. The protrusion forming step forms a protruding shape that protrudes in a radially outward direction of the winding. In the crank forming step a stepped portion. The opening step of forming the winding so that an interval between the pair of expected slot placement portions gradually increases. The arc forming step forms an arc-shaped portion curved in the stacking direction.

Abstract: A method of manufacturing a coil device includes inserting planar insulating sheets into a single conductor formed in a solenoidal coil shape from a direction intersecting with a winding axis direction.

Abstract: Method for producing a distributed lap winding for polyphase systems, in particular for alternators, wherein, in a first step, a chain of laps is formed with a linking direction, characterized in that, in a further step, at least one lap is rotated with its lap sides at right angles to the linking direction such that at least one lap side of one lap is arranged alongside at least one lap side of another lap such that the at least one lap side of one lap and the at least one lap side of another lap are arranged at a position which corresponds to a slot position.

Abstract: Process for producing a surface-mount inductor. A forming die assembly comprises a lower die, a first upper die having three peripheral side surfaces and one opening, and a second upper die for closing the first upper die opening, thereby defining a cavity therein. The coil is formed by winding a wire and processing its led-out end such that it contacts with a side surface of the first and second upper dies. The coil is placed in the cavity from the open side of the first upper die such that its led-out end contacts with a side surface of the first and second upper dies. The coil is sealed with a sealant containing a magnetic powder while the first and second upper dies are clamped together, to form the core. An external electrode is formed on the core and the led-out end of the coil is connected to the external electrode.

Abstract: An improved choke assembly for a power electronics device is provided. More specifically, a choke assembly with improved protection from environmental conditions such as dirt and water is provided. An improved choke assembly may include an insulative housing for an inductor coil that seals the inductor coil from the environment.

Abstract: A method for manufacturing a low profile, magnetic component. The method includes stacking a the plurality of substantially planar and flexible magnetic powder sheets, locating a preformed multiple turn conductive winding between at least two of the plurality of substantially planar and flexible magnetic powder sheets in the stack, and pressure laminating the flexible magnetic powder sheets around the preformed multiple turn conductive winding to define a magnetic core containing the winding.

Abstract: Provided is a transducer. The transducer includes a permanent magnet that generates a magnetostatic field, a patch disposed below the permanent magnet and formed of a material that deforms according to a magnetic field, an insulator disposed on a top surface of the patch, and a coil wound around the patch and the insulator in a certain form and allowing a magnetomotive field to be induced on the patch according to an applied current. The wound coil has a form in which directions of the magnetostatic field generated by the permanent magnet and the magnetomotive field generated by winding the coil are orthogonal to each other.

Abstract: Three-phase magnetic cores for magnetic induction devices (e.g., transformers, coils, chokes), and methods for manufacturing them, are disclosed. The magnetic cores are generally constructed from three generally rectangular magnetic core frames having a stair-stepped configuration extending along side portions of the frames. The frames are arranged to form a triangular prism structure such that side portions of locally adjacent frames are uniformly engaged to form three core legs over which coils of a three-phase magnetic induction device may be placed.

Abstract: A neurostimulator lead including an elongated lead body having stimulating and proximal end portions and a center axis extending therebetween. The lead body includes an inner tubing that extends along the center axis. The inner tubing includes wire conductors that extend between the stimulating and proximal end portions. The lead also includes multiple electrode-inductor assemblies that are positioned along the stimulating end portion and spaced apart from one another along the center axis. Each of the electrode-inductor assemblies includes an inductor coil that is electrically coupled to one of the wire conductors and an electrode that is located proximate to the inductor coil. The electrode and the inductor coil are electrically joined, and the inductor coil is configured to prevent a flow of induced current that occurs when the lead is exposed to external magnetic fields.

Abstract: An inner margin adjoining an inner lead is used as the innermost part of a conductive member made of a film conductor. The inner margin is held by a bobbin upon a winding a coil. Therefore, mutual displacement, or the like, between the film conductor, or the conductive member, and an insulation separator upon the coil-winding can be prevented.

Abstract: The invention relates to a method for producing substantially two-dimensional flat coils (28), wherein at least two cover plates (2, 3) that each have a cover surface (20) and a former (4) having a former surface (21) that is smaller than the cover surfaces are provided, wherein the former is releasably clamped between the two cover plates, such that at least some sections of lateral support surfaces (10) are formed by projecting sections (9) of the cover plates, wherein a coil conductor (25) for the geometry of the flat coil (28) is wound along the circumference of the former between the cover plates, and wherein the wound coil conductors (25) are fixed locally relative to one another through cut-outs (16) in at least one of the cover plates. The invention further relates to a corresponding winding device (1, 11, 22).

Abstract: A method of manufacturing a stator core including stacking a plurality of teeth into a plurality of stacks, said teeth are obtained from a jigsaw pattern of said teeth, said teeth are substantially identical to each other in size, each said tooth is substantially T-shaped via two arms protruding sideways from a leg, said teeth substantially aligning with each other in each said stack; winding said stacks with a plurality of windings; placing said stacks along a perimeter of a polygonal inner surface of a ferromagnetic tube, said inner surface defining an inner space within said tube, each side of said polygonal inner surface corresponding to each said stack and contacting the bases of said legs of each said stack; inserting a shaft into said inner space, the top surfaces of said arms facing said shaft; vacuum encapsulating said inner space in an epoxy resin; removing said shaft.

Abstract: A low cost, high performance electronic device for use in electronic circuits and methods. In one exemplary embodiment, the device includes an interleaved flat coil arrangement that ensures low leakage inductance while using a smaller number of flat coil windings compared to prior art devices. The flat coil windings further include features that are configured to mate with the header assembly terminal pins which substantially simplify the manufacturing process. Methods for manufacturing the device are also disclosed.

Abstract: A transformer device includes: a transformer that includes a magnetic body core and a winding; a case that houses the transformer; an external terminal that is provided in the case; a relay section that is provided in the case and to which an end portion of the winding of the transformer is connected; and a conducting wire of which one end is wound around the external terminal and bonded thereto, and another end is connected to the relay section.

Abstract: A utility meter and related methods are disclosed. The utility meter includes a sensor device positioned around a conductor to sense current flowing through the conductor. The sensor device includes a non-magnetic substrate, a coil comprising a plurality of turns wound about the substrate, and a dielectric material having a dielectric constant and positioned between the coil and the conductor. The utility meter also includes a meter control board in communication with the sensor device to determine an amount of electricity transmitted through the conductor from the power source to the user over time. The dielectric constant of the dielectric material is selected to reduce a capacitive coupling between the coil and the conductor and to reduce a sensitivity of the sensor device such that the meter control board comprises only one calibration coefficient for calibrating the sensor device over a current range.

Abstract: [Object] To provide a method of producing a surface-mount inductor which comprises an external electrode having high fixing strength with respect to an element body even in a high-humidity environment. [Means to Accomplish the Object] The method of producing a surface-mount inductor according to the present invention comprises the steps of: winding an electrically-conductive wire to form a coil; forming a core using a sealant primarily containing a metal magnetic powder and a resin in such a manner as to encapsulate the coil in the sealant while allowing each of opposite ends of the coil to be at least partially exposed on a surface of the core; reducing smoothness of a surface of at least a part of a portion of the core on which an external electrode is formed as compared to a surface therearound; and forming the external electrode on the core in such a manner as to be electrically conducted with the coil.

Abstract: The present invention relates to a method for winding wires of electrical connector, which includes adopting a unique process to wind wires around a ring body, wherein first and second wire groups each including four different color wires are respectively wound around upper and lower half portions of the ring body and respectively forming first and second input terminal wires and first and second output terminal wires. The first and second input terminal wires are twisted with corresponding ones to thereby achieve reduction of reluctance and better application to high frequency signals.

Abstract: An electromagnetic connector well suited for use in harsh environments. The connector used an E-core or C-core magnetic members for coupling power such as from a backplane to a module mounted on the backplane and using I-cores for coupling signals to and from the module. Separation of the power and signaling allows optimization of each coupling without compromise in performance of each function. Use of I-cores for signal coupling provides efficient use of space, with the use of E-cores or C-cores providing maximum power coupling to the module in a minimum space. Various aspects of exemplary embodiments are disclosed.

Abstract: A coil strand is wound on an insulator to produce a divided core member, and then the divided core member is placed on a table. While the table rotates about its axis, ends of the coil strands are inserted into lead end holding grooves, which are defined in a surface of the insulator on an outer circumferential edge of a stator and which extend along a circumferential direction of the stator.

Abstract: An assembly having transformer and inductor characteristics includes a primary transformer winding coil and a secondary transformer winding coil, each wound around a core axis. The primary coil has outer peripheral primary coil portions spaced radially of the core axis outwardly away from central primary coil portions of the primary coil. The secondary coil has outer peripheral secondary coil portions spaced radially of the core axis outwardly away from central secondary coil portions of the secondary coil. The central primary and secondary coil portions are electromagnetically coupled and stacked in a close confronting adjacent relationship to form a transformer. The outer peripheral primary and secondary coil portions diverge radially and outwardly away from the core axis to form an inductance. The diverging outer peripheral primary and secondary coil portions bound an angle whose angular spread determines a magnitude of the inductance.

Abstract: An electromagnetic device includes a jig and multiple wires. The jig includes a center member and coil-separating blocks. The coil-separating blocks protrude from the center member and are separated from each other to provide a coil channels. Each of the wires is wrapped on the jig, around the center member, and in one of the coil channels to form one of a multiple coils. Each of the coils is configured to connect to an electromagnetic navigation system and generate respective electromagnetic fields to be emitted relative to a subject.

Abstract: A rotary electric machine according to an embodiment includes a substantially cylindrical rotator that is freely rotatably supported, a stator, and a bracket that supports the rotator and the stator. The stator includes stator coils in which a plurality of air-cored coils are arranged in a ring shape and are integrated by resin, each of the air-cored coils being formed by winding a round copper wire and having an outer shape subjected to pressure molding, and stator cores divided for each of teeth.

Abstract: A magnetics assembly (100) including a transformer (1) made of litz wire. The transformer includes a toroid core (2) and a bundle of wires (3) winding around the toroid core. The bundle of wires includes first to eighth wires, and has a central portion with all eight wires twisted together and winding around the toroid core. First and second ends of the bundle of wires oppositely extend out from the toroidal core. The ends of the first to eighth wires are connected to form a primary and a secondary coils of the transformer, wherein the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire are sorted out to form central taps (35, 36) of the primary and secondary coils, respectively.

Abstract: First and second laminated structures are respectively formed at one surface and the other surface of an insulating layer. A laminate is formed of the first laminated structure, the insulating layer and the second laminated structure. A heat-assisted wiring trace is included in the first laminated structure, and a support substrate and a connection terminal are included in the second laminated structure. The surface of the connection terminal is exposed at the other surface of the insulating layer. A first portion of the laminate including the connection terminal has a thickness smaller than the thickness of second and third portions of the laminate including portions on both sides of the connection terminal.

Abstract: Disclosed is a method for producing a stator for a rotary electric machine, which involves preparing a stator core having a plurality of slots. Each of a plurality of coils is provided with a pair of coil ends, a first side, and a second side. The first side and/or the second side is inserted into the retaining groove of a jig, and each coil is set on the jig in a manner such that both coil ends extend further to the outside than the end surfaces of the jig in the axial direction thereof. The jig is disposed inside the stator core in the diameter direction. The space between the first side and the second side of the coil is expanded by applying pressing force to both coil ends from the axial direction of the stator core by means of a pressing member.

Abstract: An inductor comprises a ferromagnetic or ferrimagnetic core with a reluctance gap, a plurality of conductive windings disposed about the ferromagnetic or ferrimagnetic core, and a spacer. The spacer separates the conductive windings from the ferromagnetic or ferrimagnetic core in the immediate vicinity of the reluctance gap, such that the conductive windings are substantially unaffected by fringing flux from the reluctance gap.

Abstract: Disclosed is an apparatus for rolling a substantially planar electric wire by more than one turn into a spiral shape. The apparatus includes an inner pressing member having an outer surface, an intermediate pressing member having radially inner and outer surfaces, and an outer pressing member having an inner surface. The inner and intermediate pressing members together press a first part of the electric wire between the outer surface of the inner pressing member and the inner surface of the intermediate pressing member, thereby plastically deforming the first part to extend along the outer surface of the inner pressing member. The intermediate and outer pressing members together press a second part of the electric wire between the outer surface of the intermediate pressing member and the inner surface of the outer pressing member, thereby plastically deforming the second part to extend along the outer surface of the intermediate pressing member.

Abstract: A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic.

Abstract: A surface mount inductor including a drum core having a pair of flanges at both ends of a winding shaft thereof, a winding formed by winding an insulation-coated wire around the winding shaft, and a pair of plate-like metal terminals arranged on a flange surface of the drum core and each having a protrusion part protruding from a perimeter of the flange, wherein terminals of the winding are tied around the protrusion parts, the protrusion parts are compressed in a vertical direction and formed to have a predetermined height-direction dimension, and tied parts are immersed in a solder bath to be subjected to connection processing.

Abstract: The invention is an induction-based lighting system designed to provide power to model displays and other similar application, including a method of manufacturing a primary winding that interacts with secondary windings placed inside display components to provide lighting effects, such as one finds in model Christmas villages. The electrical characteristics of the primary winding can be controlled by a microcontroller to make lights in the models blink or change as a user desires.

Abstract: A low loss power inductor and method for making same. A magnetic core is constructed of one or more E-shaped and l-shaped portions. Each E-shaped portion includes top, middle and bottom bars, and an open edge adjacent an l-shaped portion with a gap between the middle bar and the l-shaped portion. Conductive and insulated layers having mutually adjacent surfaces are coiled about the one or more middle bars. The width of the conductive layer is no greater than the length of the middle bars and is less than or equal to the width of the insulated layer.

Abstract: An electronic package structure including at least one first electronic element, a second electronic element and a lead frame is provided. The second electronic element includes a body having a cavity. The first electronic element is disposed in the cavity. The lead frame has a plurality of leads. Each of the leads has a first end and a second end. The first end of at least one of the leads extends to the cavity to electrically connect the first electronic element.