Abstract: Disclosed is a power supply apparatus. The power supply apparatus includes a first magnetic core; a second magnetic core having a shape equal to a shape of the first magnetic core; a third magnetic core between the first and second magnetic cores; a first coil wound around one of the first and third magnetic cores; and a second coil wound around one of the second and third magnetic cores.

Abstract: A columnar leg portion 54 of a first core 50 is inserted into a tubular portion 21 of a second bobbin 20 having a secondary winding 40 wound therearound and including a flange 22 at one end, and the columnar leg portion 54 of the first core 50 and the tubular portion 21 of the second bobbin 20 are inserted into a tubular portion 11 of a first bobbin 10 having a primary winding 30 wound therearound and having a flange 12 at one end, and a leading end 41 as the wind-beginning of the secondary winding 40 is pulled out to the outside of a transformer through the gap between the tubular portions 11 and 21.

Abstract: A device for improving power quality is installed on a power line, for removing noise that flows into the power line, characterized by: a reactor having a first coil and a second coil wound on a core disposed between the input end and the output ends of the power line, wherein in the reactor, the first end of the first coil is connected to the input end of a first power line, the second end of the first coil is connected to the output end of the first power line, and the first end of the second coil is connected to the output end of the second power line, and the second end of the second coil is connected to the input end of the second power line.

Abstract: A transformer comprising columns, wherein each of the columns comprises a magnetic material, a length axis, an upper end, and a lower end, an upper yoke in contact with the upper end and a lower yoke in contact with the lower end, wherein at least yokes comprises two parallel sub-yokes and a yoke connector connecting the two parallel sub-yokes, at least one primary winding on at least one of the columns configured to produce alternating magnetic flux in a closed magnetic circuit defined by the columns and the yokes, at least one secondary winding on at least one of the columns, and at least one control winding on the yoke connector, wherein the at least one control winding is configured to produce direct magnetic flux in a closed magnetic circuit defined by the yokes and the respective yoke connector, wherein the respective yoke connector is in a magnetically symmetrical position.

Abstract: A core assembly used for a wireless power transmitting device and a wireless power transmitting device having the same. The core assembly for the wireless power transmitting device includes: a main coil disposed at a first level; an auxiliary coil disposed at a lower side of the main coil such that the auxiliary coil is located at a second level lower than the first level, and including a first sub coil and a second sub coil, which respectively have a portion overlapped with the main coil and respectively have a size smaller than the main coil; and a core of a magnetic substance configured to accommodate the main coil and the auxiliary coil.

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

Abstract: The present invention relates to a connector system that provides the transfer of electrical power and/or data communications signals between two systems. The connector has no conductive electrical connection and can operate independently of angular orientation.

Abstract: A transformer may include a first and a second continuous single piece multi-turn helical winding, one concentrically received by the other. The turns of the windings are electrically insulated from one another and spaced sufficiently close together to permit inductive coupling therebetween. The turns may be formed of a conductor having a rectangular cross-section, which may, or may not, include an electrically insulative sheath. The single piece multi-turn helical windings may have a continuous or smooth radius of curvature, with no discontinuities or singularities between first and second end terminals. The transformer may be formed by wrapping electrical conductor about a winding form. The transformer may be used in various electrical circuits, for example converter circuits.

Abstract: There are provided a transformer capable of being easily manufactured by facilitating insulation between coils and minimizing leakage inductance, and a display device using the same. The transformer includes: a bobbin including at least one partition wall formed on an outer peripheral surface of a body part having a pipe; a coil group including a plurality of coils wound while being stacked on the body part and at least one insulating wire wound between the plurality of coils; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the plurality of coils are individually wound so as to be uniformly disposed in a plurality of spaces partitioned by the at least one partition wall.

Abstract: A transformer includes: —a plurality of windings (P, S1, S2) wound on a coil former (100), preferably in the form of a one-piece coil former, —a pair of first insulating flanges (106) separating a first winding (P) from a pair of second windings (S1, S2), —a pair of second insulating flanges (104) defining together with the first insulating flanges (106) two winding spaces for the second windings (S1, S2). The ends (P1, P2) of the wire of the first winding (P) extend across the winding spaces for the second windings (S1, S2). Insulating walls (208) are provided extending between the ends (P1, P2) of the wire of the first winding (P) and the second windings (S1, S2) to provide insulation therebetween.

Abstract: Disclosed herein is a transformer including: a primary coil formed of a first conductor having a predetermined length and including a first end and second end for receiving a signal, wherein the first conductor is formed as a first loop; and a secondary coil that is coupled to the primary coil in an electromagnetic coupling, and is formed of a second conductor having a predetermined length and including a first end and a second end for outputting a signal, wherein the second conductor is formed as a second loop, wherein the primary coil and the secondary coil are stacked while crossing each other. Accordingly, power transformer efficiency may be increased.

Abstract: Described herein are compact resonator structures for wireless energy transfer that may be used in vehicle applications. The compact resonator structures comprise multiple parallel conductors to reduce the height of the structure. In some embodiments the compact resonator structures use angled routing of the conductor to reduce the effects of a minimum bend radius on the thickness of the structure.

Abstract: A power conversion device includes a magnetic core; and a plurality of windings surrounding portions of the magnetic core, including a first winding and a second winding magnetically coupled through the magnetic core. The magnetic core comprises a first part formed of a first material and a second part formed of a second material, the first material having a first stiffness and the second material having a second stiffness substantially less than the first stiffness. The first winding and the second winding are magnetically coupled through the first part of the magnetic core.

Abstract: A method of constructing a differential inductor having a high self-resonance frequency is provided. In general, a ground point is identified. A first coil having a first and second loop is created such that the first loop is electrically further away from the ground point than the second loop. A second coil having a third and fourth loop are created such that the third loop is electrically further away from the ground point than the second loop. The first coil and the second coil are positioned such that the first loop is positioned as a near neighbor to said fourth loop and said second loop is positioned as a near neighbor to said third loop.

Abstract: A transformer assembly includes a vertical bobbin and a shrouding element. The vertical bobbin includes a first winding portion, a second winding portion, and a flange. The flange is disposed between the first winding portion and the second winding portion. The flange includes a flange edge. The shrouding element, which substantially covers the first winding portion or the second winding portion, includes a shrouding edge that is operatively coupled to the flange edge. The flange edge and the shrouding edge have at least one complementary corrugation. In one example, the flange edge includes at least one groove and the shrouding edge includes at least one protrusion that is complementary to the groove. In another example, the shrouding edge includes at least one groove and the flange edge includes at least one protrusion that is complementary to the groove.

Abstract: A device for diagnosing signal status of a driven object includes an insulation transformer, a signal generating device, a current measuring device, a feedback device, and a voltage measuring device. The insulation transformer has an intermediate tap at a midpoint of its primary winding. The signal generating device generates periodically vibrating voltage and includes a rectangular wave pulse voltage and alternating voltage. The current measuring device is connected to the intermediate tap of the primary winding to measure a current. The feedback device converts the current flowing from the intermediate tap of the primary side to a voltage corresponding to the drive voltage and feeds back the converted voltage to the input drive voltage signal. The voltage measuring device measures the voltage added with the feedback voltage. Diagnosis of the signal state is performed based on measurement results of the current measuring device and voltage measuring device.

Abstract: The transformer includes: first and second cores each including a magnetic center leg and a magnetic outer leg positioned outside of the magnetic center leg; a first adhesion part that adheres the magnetic center leg of the first core and the magnetic center leg of the second core to each other; a second adhesion part that adheres the magnetic outer leg of the first core and the magnetic outer leg of the second core to each other; a bobbin inserted through the magnetic center leg of the first core and the magnetic center leg of the second core, a primary coil and a secondary coil being wound on the bobbin; and an elastic member that applies pressure to the magnetic outer leg of the first core and the magnetic outer leg of the second core in a neighborhood of the second adhesion part, in an inward direction of the transformer.

Abstract: An electrosurgical system is disclosed. The electrosurgical system includes a multiple-secondary transformer configured for sensing voltage. The multiple-secondary transformer includes a primary winding coupled to an active terminal and a return terminal of the electrosurgical system and a plurality of secondary windings. Each of the secondary windings is configured to transform the radio frequency voltage into a sensed voltage. Each of the secondary windings includes an output coupled to a sensor circuit and configured to transmit the sensed voltage to the sensor circuit.

Abstract: Provided are a wireless power communication system, including: a primary core where a primary coil, to which a current is applied, is wound; and a secondary core having a width wider than a width of the primary core, and receiving a secondary coil which outputs a current generated by a magnetic field, wherein the magnetic field is induced by the primary coil to the secondary coil, a wireless power transmission apparatus and a wireless power receiving apparatus therefor.

Abstract: A line voltage transformer device for a bathing installation includes a housing structure, with a line voltage electrical power connection including a line voltage wiring cable having an electrical connection at a distal end for connection to a line voltage AC supply outlet adjacent the bathing installation. A voltage transformer circuit is disposed within the housing and connected to the line voltage electrical power connection and is configured to transform AC line voltage electrical power from the line voltage electrical power connection to low voltage AC power at first and second low voltage AC terminals, wherein the low voltage AC power is delivered to the first and second low voltage AC terminals.

Abstract: A coil component includes coil windings, and resin portions that are insulating members having electrical insulation properties and integrally formed with the coil windings covering parts of surfaces of the coil windings, and the coil component is sandwiched by magnetic core members in directions of winding axes of the coil windings. The coil windings are composed of a plurality of plate-like coil members in a ring shape having ends joined in a stacking direction with a clearance therebetween to be continuous in a predetermined winding direction. The resin portions that are the insulating members cover outermost plate surfaces of the coil members facing the magnetic core members, a space between the adjacent coil members, and inner perimeter edges of the coil members, and have openings along the directions of winding axes of the coil windings.

Abstract: A transformer includes a primary coil, a secondary coil, and a core. The core is to be used in combination with the primary coil or the secondary coil, and includes a conductor storage part and a central part. The conductor storage part is a concave recess formed in an annular manner and configured to store a conductor of the coil therein. The central part is a region inward from the conductor when the core is used in combination with the coil. The central part has a recessed shape having an opening that opens toward a direction opposite to a direction of an opening of the concave recess. The central part has an end, at a side opposite to a side of the opening of the central part, which is generally flat so as to be contiguous with an inner opening edge of the conductor storage part.

Abstract: A double active parts structure of a reactor comprises two separate active parts that are coupled together by its inner coils. The arrangement mode of the two active parts is parallel or in-line.

Abstract: A high voltage transformer includes an elongate core of a ferromagnetic material. A plastic transformer frame has segment walls arranged perpendicular to the core. A secondary-winding is wound around the core in winding segments divided by the segment walls. A primary winding is formed of conductor segments to provide a loop around the core. At least one of the conductor segments is a connection pin molded in one of the segment walls.

Abstract: A non-contact transformer includes a first core and a second core. The first core includes a first main body, a first coil-winding part extending from the first main body and having a primary winding wound around the first coil-winding part, and a first extending part extending from the first main body to be spaced apart from the first coil-winding part. The second core includes a second main body positioned to face the first main body, a second extending part extending from the second main body towards the first main body, and a second coil-winding part around which a secondary winding is wound.

Abstract: An inductor and a transformer, each of which includes a first bobbin on which a first coil is wound and a second bobbin on which a second coil is wound, are provided. The first bobbin includes a first bobbin part on which the first coil is wound and a first support part provided at one end of the first bobbin part. The second bobbin includes a second bobbin part on which the second coil is wound and a second support part provided at one end of the second bobbin part. Another end of the first bobbin part is coupled to the second support part and another end of the second bobbin part is coupled to the first support part.

Abstract: An aquarium pump having LED lamps, wherein the coil unit of a motor unit in the pump housing is used as a primary coil unit, and a first insulating layer is used to envelop the primary coil unit, then a secondary coil unit is used to wind the primary coil unit; taking advantage of induction of the secondary coil unit to the primary coil unit to generate a low voltage for using by the LED illuminating lamp set. Kinetic energy during rotation of an internal magnet of a motor for the pump is used as induction potential, this is the energy required that can get an effect of energy saving and carbon reducing.

Abstract: A sheet type transformer includes a primary winding 1 formed in the shape of a flat plate; and a secondary winding 6 wound around an axis perpendicular to the face of the primary winding 1, wherein the end 6a of the secondary winding 6 on the radially central side thereof is drawn out in the direction perpendicular to the face of the primary winding 1.

Abstract: Multiple coil systems and methods are disclosed in which transmitter and receiver inductors, or coils, are coupled in a configuration for wirelessly transferring data and/or power among them. In preferred implementations, the systems and methods are used for transmitting both power and data using pairs of coupled coils. One preferred aspect of the invention is that the coils are not permanently affixed in physical proximity to one another, but can be moved and/or interchanged.

Abstract: A reactor is provided in which coil segments (5-1, 5-2) of each of first and second auxiliary winding elements (2-1, 2-2) is of a multilayered and aligned winding structure. The coil segments (5-1, 5-2) of the first auxiliary winding element (2-1) and the coil segments (5-1, 5-2) of the second auxiliary winding element (2-2) are disposed within respective space areas (6-1, 6-2) delimited between the coil segments of the second auxiliary winding element and an outside and between the outside and the coil segments of the first auxiliary winding element. The coil segments of each of those first and second auxiliary winding elements are so combined as to be adjacently alternately positioned in a line to thereby form a main winding body (3). The pair of the auxiliary winding elements are connected parallel to each other.

Abstract: A compact reactor with excellent productivity and heat dissipation is provided. Reactor 1? includes a coil formed by spirally winding a wire 2w and a magnetic core 3 having an inside core portion inserted into the coil and an outside core portion 32 coupled to the inside core portion. These core portions form a closed magnetic circuit. The coil is covered with an inside resin portion 4 on the outer circumference thereof to form a coil molded unit 20? with its shape being held. The outer circumference of a combination unit 10 of the coil molded unit 20? and the magnetic core 3 is covered with an outside resin portion 5?. Reactor 1? does not have a case and is thus compact. A surface of the outside core portion 32 on the installation side (core installation surface 32d) is exposed form the outside resin portion 5? and is in direct contact with a fixed object, thereby achieving excellent heat dissipation.

Abstract: In accordance with embodiments of the present disclosure, a multi-tap integrated transformer may include one or more windings, wherein each of the one or more windings include at least one pair of primary taps for receiving at least one differential input signal, a first pair of secondary taps for outputting a first output signal, and a second pair of secondary taps for outputting a second output signal. The first and second output signals may be based on the at least one differential input signal and a mutual inductance between portions of the one or more windings associated with the at least one pair of primary taps, the first pair of secondary taps, and the second pair of secondary taps.

Abstract: A magnetic device producing a small amount of leakage flux and capable of substantially eliminating the amount of leakage flux that escapes the magnetic core of the device. The device includes at least a portion of an electronic circuit that includes an interphase transformer arranged on a magnetic core. The reactor windings on each leg of the magnetic core are disposed in close proximity to each other and can be wound concentrically or in a bifilar fashion. The resulting combination of the magnetic core and windings provides a high degree of magnetic coupling between reactor windings disposed on the same leg and between reactor windings disposed on differing legs. The high degree of magnetic coupling substantially reduces the amount of leakage flux that can affect other metal objects proximate the magnetic device.

Abstract: Parasitic capacitance between upper and lower adjacent wirings of an inductor using a multilayer wiring layer in an insulating film formed on a base substrate is reduced. An inductor is characterized by having one go-around of go-around wiring (A-B or B-C) formed in each of at least two of adjacent wiring layers of a plurality of wiring layers 18 placed in an insulating film 17 on a base substrate 16, and in that one end (B) of the one go-around of go-around wiring (A-B and B-C) formed in each of the at least two of wiring layers is connected to each other at a via 2 and the one go-around of go-around wiring (A-B and B-C) formed in each of the at least two of wiring layers is placed at substantially the same position in a surface of the base substrate when viewed from an upper side of the base substrate.

Abstract: A transformer of dry design is disclosed having a core composed of amorphous material, which is sensitive to mechanical loads, having at least one winding former which surrounds the core and is in each case formed from at least one primary winding and secondary winding, and having at least one holding apparatus. A method for transformer production is also disclosed, wherein the holding apparatus is used to fix the at least one primary winding and secondary winding in each case and for this purpose it acts on each of the end faces of the at least one winding former.

Abstract: An inductor includes a core formed of a magnetic material and a foil winding wound at least partially around or through at least a portion of the core. A first end of the winding extends away from the core to form an extended output tongue configured and arranged to supplement or serve as a substitute for a printed circuit board foil trace. A second end of the winding forms a solder tab. At least a portion of the extended output tongue and the solder tab are formed at a same height relative to a bottom surface of the core. Another inductor includes a core formed of a magnetic material, a winding wound at least partially around or through at least a portion of the core, and a ground return conductor attached to the core. The core does not form a magnetic path loop around the ground return conductor.

Abstract: Disclosed herein is a transformer integrated with an inductor. The transformer includes a transformer unit configured to perform voltage transformation by mutual induction between first and second cores connected opposite to each other and primary and secondary coils included in a space between the first core and the second core; and an inductor unit having a third core connected to the second core and an inductor included in a space between the second core and the third core. The transformer is fabricated by physically integrating two elements having different functions into one element, thereby simplifying the configuration of a system.

Abstract: A winding includes a wound electrical conductor having an electrical insulator. A method is also provided for producing a winding. The winding can be produced as a single piece by using a support on which the electrical conductor can be disposed and electrically insulated. The support is particularly implemented in the form of a cylindrical spiral as a coil, and thereby allows practically unlimited single-piece production of the winding. The cross section and/or the width of the electrical conductor can simultaneously be varied by location on the support.

Abstract: A transformer (100) includes a bar-shaped core (5), a number of coils (7) comprising a first winding group (71, 72) and a second winding group (73, 74) wound around the core, a housing (1) receiving the core and the coils, and a number of conductive terminals (3) being secured in the housing. The first winding group and the second winding group wound around different parts of the core. The coils are soldered to the conductive terminals (3). The coils (7) are wound around the core automatically by an automatic winder. Therefore, the cost of manufacturing the transformer is decreased.

Abstract: Linear variable differential transformers include a core comprising a non-ferromagnetic material and a ferromagnetic material, and a coil assembly including an axial bore within which the core is disposed and through which the core axially translates.

Abstract: Disclosed herein is a ballast for multiple lamps and a method of manufacturing the ballast. A first coil is wound around a bobbin which has a partition formed in the center portion of an inner space thereof. An insulating sheet is stacked on the first coil, and a second coil is wound around the insulating sheet. Two paired core elements are vertically coupled to each other to form each core. Ends of the core elements disposed outside the bobbin are connected, and ends of the core elements disposed inside the bobbin are spaced apart from each other by the thickness of the bobbin partition, to form a path for magnetic flux.

Abstract: A surface mount pulse transformer has a drum type core including a core and first and second flanges disposed on both ends of the core and installed on a substrate and a primary winding wire and a secondary winding wire wound around the core and provided with an intermediate tap, respectively, wherein first and second terminal electrodes being connected to each of both ends of the primary winding wire and a third terminal electrode for connecting being connected to the intermediate tap of the secondary winding wire are disposed on the surface of the first flange and a fourth terminal electrode being connected to the intermediate tap of the primary winding wire and fifth and sixth terminal electrodes being connected to each of both ends of the secondary winding wire are disposed on the surface of the second flange.

Abstract: In one embodiment, the present invention includes a transformer formed on a semiconductor die. Such transformer may have multiple coils, including first and second coils. Each coil may have segments that in turn are formed on a corresponding metal layer of the semiconductor die. The segments of a given coil are coupled to each other, and the first and second coils can be interdigitated with each other.

Abstract: A coil component includes a first coil winding wound around a first axis, a second coil winding wound around a second axis and juxtaposed to the first coil winding, a connecting member for electrically connecting second terminals that are one end of the first coil winding and one end of the second coil winding, and a heat conductive member mounted on the connecting member and having electrical insulation properties and heat conductivity. The first and second coil windings are each wound such that magnetic flux is generated by a current flowing through the first and second coil windings to pass through an opening of the first coil winding and through an opening of the second coil winding in an opposite direction to the direction passing the opening of the first coil winding. Accordingly, heat generated in the first and second coil windings is dissipated from the heat conductive member.

Abstract: Primary and secondary coils are provided in the first through section and a coil group is also provided in the second through section. Hence, the surface area over which the coil group extends within a plane which is perpendicular to the through sections is greater than in the case where all of the coils are provided in a single through section. The surface area which is not covered by the magnetic body cores of the platelike members increases. In cases where the surface area of the members is large, the heat radiation characteristic is enhanced. Hence, the cooling efficiency of the transformer improves. In cases where there is a plurality of coil groups which are magnetically coupled to one another in particular, because it is difficult to move the heat produced in the plurality of coil groups through heat conduction, heat transfer, or heat radiation, a heat radiation structure of this kind is effective.

Abstract: A semiconductor transformer provides high frequency operation by forming the primary windings of the transformer around a section of magnetic material that has a hard axis that lies substantially parallel to the direction of the magnetic field generated by the primary windings. The core can also be formed to have a number of sections where the magnetic flux follows the hard axis through each section of the core.

Abstract: A multi-phase coupled inductor includes a powder core material magnetic core and first, second, third, and fourth terminals. The coupled inductor further includes a first winding at least partially embedded in the core and a second winding at least partially embedded in the core. The first winding is electrically coupled between the first and second terminals, and the second winding electrically is coupled between the third and fourth terminals. The second winding is at least partially physically separated from the first winding within the magnetic core. The multi-phase coupled inductor is, for example, used in a power supply.

Abstract: An edgewise coil achieves positioning of both end portions and accurate and reliable conduction with respect to a circuit board in a simple configuration, and can be downsized. The edgewise coil is usable in a conductor. The edgewise coil includes a base material and a coil member fixed at both end portions to the base material and including an external wound-wire portion placed on the base material and an internal wound-wire portion extending in the base material.

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

Abstract: A transformer for reducing the electromagnetic interference (EMI) effect is disclosed. The transformer includes a bobbin; a magnetic core assembly partially sleeved by the bobbin; a first primary winding coiled around the bobbin; a secondary winding coiled on the first primary winding; and a first shielded element disposed between the first primary winding and the secondary winding for disconnecting the EMI transmission from the first primary winding to the secondary winding. The first primary winding includes a first winding portion and a second winding portion, and the first winding portion has larger EMI comparing to the second winding portion. The first winding portion of the first primary winding is adjacently disposed to the magnetic core assembly for shielding the EMI of the first primary winding by using the magnetic core assembly.