Abstract: An inductive coupler assembly for use in a downhole environment and related methods are described. An example indicative coupler assembly includes a first inductive coupler having first and second magnetically coupled coils and a second inductive coupler having third and fourth magnetically coupled coils. The first and third coils are coupled to a first pair of signal lines and the second and fourth coils are coupled to a second pair of signal lines. The first inductive coupler is to magnetically convey a differential communications signal between the first and second pairs of signal lines, and the second inductive coupler is to magnetically convey a common mode power signal between the first and second pairs of signal lines.

Abstract: A coil component may include: a magnetic body; and first and eighth external electrodes formed on one surface of the magnetic body, second and third external electrodes and sixth and seventh external electrodes that are formed on two surfaces adjacent to the one surface of the magnetic body, respectively, and fourth and fifth external electrodes formed on the other surface opposing the one surface of the magnetic body. The magnetic body includes upper and lower substrates and first to fourth coil parts disposed between the upper and lower substrates and enclosed by an insulation film, the first to fourth coil parts having coupled coils wound in parallel on the same plane, respectively, so that magnetic fluxes in the coupled coils are formed in directions opposite to each other, the coupled coils being composed of first to eighth coils.

Abstract: Disclosed is a flexible ultracapacitor having a flexible cloth including an autotransformer-type connected switch made with nanoporous carbon electrodes impregnated by an electrolyte. Each of the nanoporous carbon electrodes may be configured to have a circuit. The circuit may include a first inductor and a second inductor. Each of the first inductor and the second inductor may have a first terminal and a second terminal. The second terminal of the first inductor may be coupled to the first terminal of the second inductor. A switch may be coupled between the first terminal of the first inductor and the second terminal of the second inductor.

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: Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of a dual wound coil. The coil ends of a dual wound coil can be on a common side, simplifying wiring. The dual wound coil may be configured with a low resistance, reducing resistive losses.

Abstract: A transformer includes a core having a first leg, a second leg and a third leg, a split primary winding including first turns about the first leg electrically coupled with second turns about the third leg, and a secondary winding about the second leg. Magnetic flux linking the first turns of the split primary winding and magnetic flux linking the second turns of the primary winding link the secondary winding.

Abstract: A system and method for manufacturing of a micro-transformer providing direct electrical isolation between a primary winding and a secondary winding while featuring tight magnetic coupling for a large possible step-up or step-down ratio. The micro-transformer may be implemented in an integrated circuit, and may include a magnetic core. A high stepping ratio, e.g. approximately 50 to 100, may be achieved by connecting multiple symmetric primary windings in parallel and multiple symmetric secondary windings in series, or vice-versa. A plurality of windings may be stacked vertically. The micro-transformer may be of particular utility in wireless sensor networks, thermal and vibrational energy harvesters, power converters, and signal isolators.

Abstract: A cost effective solution for construction of high frequency, double ended, isolated, push pull, center tapped power transformers operating in continuous/discontinuous mode with minimized winding proximity losses comprises at least two identical sets of windings with identical coupling coefficients. Each set of windings consists of at least one primary winding and at least one secondary winding tightly coupled to each other. Both the sets of windings are loosely coupled to each other with a magnetic field isolating separator.

Abstract: A coil has multiple coil sections connected to each other and each coil section includes a body portion and at least one direct or protrusive connecting portion disposed at one end of the body portion. Coil sections form at least one spiral path around the central axis of the coil, and on the projection of the coil along the central axis. The protrusive connecting portions protrude out of the path location of the direct connecting portions. Two connected coil sections form only one overlapped surface at the coupled parts of the direct or protrusive connecting portions. Regarding to the body portions in the same spiral path, a first end of one body portion is indirectly connected and disposed adjacent to a second end of another body portion. The second end has one surface with a virtual extension reaching the first end.

Abstract: There are provided a series inductor array implemented as a single winding capable of decreasing a layout area for providing a plurality of inductors, and a filter including the same, the series inductor array including a winding structure having both ends, and one or more terminal parts electrically connected to a region between the both ends of the winding structure to form an external electrical connection, wherein the winding structure has a structure in which a plurality of inductors having inductance formed in regions of the winding structure disposed between the both ends thereof and the terminal parts or between the terminal parts are connected in series.

Abstract: Described herein are techniques related to near field coupling and wireless power transfers. A device may include a cascaded coil antenna to include a first coil antenna that is connected in series with a second coil antenna. The first and second coil antennas are independent antennas prior to cascading and are located in different surfaces of the device to establish near field coupling through front side, top side, bottom side, or corner side of the portable device. Furthermore, a flux guide may be placed in the cascaded coil antenna to facilitate magnetic flux at the first coil antenna and the second coil antenna to induce current of the same phase during receive mode. During transmit mode, the flux guide facilitates the magnetic flux at the first coil antenna and the second coil antenna to generate magnetic fields of the same direction.

Abstract: An apparatus and method for manufacturing a superconducting low-pass filter for quantum computing devices. The apparatus includes a plurality of containers and input and output ports connected to opposite ends of the apparatus. A plurality of coils of superconducting wire are wound using a mandrel. An adhesive is applied to the coils for maintaining a wound state. Each of the coils are positioned in each of the containers and electrically connected to each other with at least one coil being connected to the input port and at least one coil being connected to the output port. The coils are released or expanded from their wound state using an adhesive solvent. The containers are then filled with a conductive polymer and the containers are closed with one or more covers.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20. An interval between the inner end face 24f of the exposed core portion 24 and the end face of the coil 10 is 0.5 mm to 4.0 mm, whereby the resin can easily be packed between the coil 10 and the core 20.

Abstract: An inductor structure including a plurality of solenoids and at least one connecting line is provided. One of the solenoids serves as a core, and the remaining solenoids are sequentially wound around the core solenoid. Axes of the solenoids are substantially directed to the same direction. Each connecting line is correspondingly connected between ends of two adjacent solenoids to serially connect the solenoids.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

Abstract: A coil formed by winding one flat type wire material rectangularly edgewise thereby stacking the rectangularly edgewise wound flat type wire in rectangular tube shape, wherein not only one edge of the coil including the flat type wire including an end portion of start-of-winding thereof but also another edge of the coil including the flat type wire including an end portion of finish-of-winding thereof are formed to be projecting from an outer circumference of the coil.

Abstract: Provided is an MCP including a plurality chips stacked therein. Each of the chips includes a plurality of inductor pads configured to transmit power or signals, and at both sides of a reference inductor pad, a first and a second inductor pads are formed to generate magnetic fluxes in different directions from each other.

Abstract: An electrical transformer is disclosed which includes an enclosure; a magnetic core assembly arranged within the enclosure, the magnetic core assembly having a first core limb, a second core limb and a third core limb; and three coil assemblies having a first coil assembly, a second coil assembly, and a third coil assembly. At least two diaphragms are arranged within the enclosure, the diaphragms being essentially sealed to a first outermost coil of the first coil assembly, and arranged for guiding a cooling fluid in series through a first inner fluid duct, a second inner fluid duct, a third inner fluid duct and an extra-coil volume along outsides of third, second and first outermost coil coils of the third, second and first coil assemblies.

Abstract: A device includes a flexible substrate, N coiled conductors, and a plurality of folding regions. The N coiled conductors are deposited on the flexible substrate and connected in series by conductive interconnects. N is greater than 1. Each of the folding regions is defined by a separation distance between adjacent ones of the N coiled conductors. The conductive interconnects traverse the folding regions between the N coiled conductors to connect the N coiled conductors in series. The flexible substrate is folded such that the N coiled conductors form a stack of N coiled conductors.

Abstract: An isolated power converter that includes, in one embodiment, a first magnetic core having a primary winding and a secondary winding around the first magnetic core. The power converter includes a second magnetic core having a first leg, a second leg coupled to the first leg, and a third leg coupled to the first and second legs, wherein a part of the third leg is equidistant from the first leg and the second leg. The power converter also includes a first winding encircling the first leg, a first end of the first winding coupled to the secondary winding, a second winding encircling the second leg, a first end of the second winding coupled to the secondary winding, and a third winding encircling the third leg, a first end of the third winding coupled to a second end of the first winding and to a second end of the second winding.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

Abstract: There is provided a thin film-type coil component having a size equal to or less than 0806 and including a ceramic main body, external electrodes including a plurality of first external electrodes formed on one surface of the ceramic main body and a plurality of second external electrodes formed on the other surface facing one surface of the ceramic main body, and a coil unit including a plurality of coil layers stacked in the ceramic main body, thereby obtaining low direct current (DC) resistance.

Abstract: Embodiments of the present invention pertain to windings and methods thereof. A disclosed winding is for an inductive device, having a winding core and a winding portion. The winding portion has a first winding layer, a connection section, and a second winding layer. The first winding layer comprises a first solenoid wound around the winding core along a step direction. The connection section is on the first winding layer, substantially in parallel to the step direction. The second winding layer comprises a second solenoid wound around the first winding layer along the step direction. The connection section electrically connects the first and second winding layers.

Abstract: A composite transmission line transformer includes at least one core, a first port, a second port, and one or more pairs of transmission lines wound about the core(s). Each transmission line is in signal communication with the first port and the second port. For each pair, the transmission lines are interconnected in series at the first port and at the second port such that the first port and the second port are DC-isolated from each other.

Abstract: When an outer core that is to be mounted on a reactor is seen in plan, the outer core is a compact that has a plan-view shape in which a side of the outer core that is opposite to a facing side of the outer core, which faces the inner cores, has a smaller dimension in a width direction, which is parallel to a facing surface, than the facing side of the outer core. A method of manufacturing such an outer core includes a preparing step and a compacting step. In the preparing step, coated soft magnetic powder including multiple coated soft magnetic particles formed by coating soft magnetic particles with insulating coated films is prepared as raw-material powder of the outer core.

Abstract: An electromagnetic valve is provided with at least one coil containing at least one coil former. The coil former is provided with at least two separate wire windings, of which, in each case, two are connected in series or in parallel with one another.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

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: 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 transformer comprises a primary winding having a first plurality of magnetic circuits each with a second plurality of turns and electrically connected in parallel and a secondary winding comprising a third plurality of magnetic circuits each with a fourth plurality of turns and electrically connected in series. The primary winding is electromagnetically coupled to the secondary winding by a single turn electrically conductive loop.

Abstract: The invention provides a flat band winding for an inductor core comprising at least one insulated conductive flat band having a first linear region, a second linear region, and a third linear region, wherein the third linear region is substantially orthogonally connected to said first linear region and to said second linear region such that said first linear region and said second linear region are displaced by a distance and run in parallel or anti-parallel, and wherein said first linear region and said second linear region are wound in opposite directions around the inductor core and around said third region.

Abstract: This invention relates to a transformer (1) for multi-output power supplies such as those commonly found in electronic equipment. The transformer comprises a magnetic core (3) and a plurality of windings (5, 7, 9) at least some of which are fractional windings, arranged about the magnetic core. The transformer comprises a dual transformer structure with a pair of transformers, a main transformer (11) and an auxiliary transformer (13). In a preferred embodiment, the main transformer and the auxiliary transformer are connected together. In this way, readily available magnetic components may be used in the construction of the transformer and the simple construction allows for a large cross-sectional area of transformer to be deployed so that reduced turn counts of windings may be used.

Abstract: An embodiment of integrated inductor device, comprising a plurality of modules overlaid to each other, each module including at least one coil of conducting material. The directly overlaid pairs of coils are coiled in opposite directions. The directly overlaid modules are mechanically coupled through first adhesive conductive regions and the coils of the directly overlaid modules are electrically coupled to each other through second adhesive conductive regions. The first and the second adhesive conductive regions coupling directly overlaid modules are formed in the same step of the process, are of the same material and are arranged at a same level.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

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: The invention relates to a method and an arrangement for winding a winding wire onto a winding body, and to an associated magnet assembly. The start of the winding wire is threaded into a first wire-receiving slot of a first electrical connection dome. By a winding operation a predefinable number of turns are then wound onto the winding body, and one end of the winding wire is threaded into a second wire-receiving slot of a second electrical connection dome and cut off. According to the invention, the start of the winding wire which has been threaded into the first wire-receiving slot is placed on a first wire support which is arranged downstream of the first wire-receiving slot.

Abstract: A transformer includes a base, a magnetic core assembly and at least one winding coil assembly. The base includes a first receptacle and at least one first receiving recess. The magnetic core assembly includes a first magnetic part, a second magnetic part and a third magnetic part. The base is arranged between the first magnetic part and the second magnetic part. The first magnetic part has a first post accommodated within the first receptacle. The at least one winding coil assembly is disposed on the base. The third magnetic part is optionally accommodated within the first receiving recess, so that an air gap between the third magnetic part and the first magnetic part/the second magnetic part is adjustable.

Abstract: Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of a dual wound coil. The coil ends of a dual wound coil can be on a common side, simplifying wiring. The dual wound coil may be configured with a low resistance, reducing resistive losses.

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 Bulk Current Injection (BCI) transformer is provided herein with a magnetic core and a plurality of windings. The magnetic core is configured for encircling one or more electrical conductors under test. Each of the plurality of windings are wrapped, at least in part, around a longitudinal dimension of the magnetic core and spaced apart around an azimuthal dimension of the magnetic core. During injection tests, a power source may be coupled for supplying current to each of the windings at a respective “feed point.” Arranging multiple feed points around the magnetic core enables current flow through the windings to generate an azimuthally-uniform magnetic flux density in the magnetic core. The uniform magnetic flux density enables the BCI transformer to excite only common mode currents in the electrical conductors under test. BCI test methods, including injection tests and current sensing tests are also provided herein, along with a test setup for characterizing BCI transformers.

Abstract: A transformer winding having a conductor wound in a plurality of turns is disclosed, wherein the transformer winding includes a reinforcing part arranged at a winding transition in a manner so that the reinforcing part covers more than 180 degrees of the conductor circumference, whereby the bending strength of the conductor at the location of the reinforcing part is increased. The resistibility of the transformer winding against bending stress is hence improved.

Abstract: A high voltage step-up power transformer includes at least one module which defines a lower voltage primary side and a higher voltage secondary side and which includes at least one primary winding and at least one secondary winding, wound concentrically around a ferromagnetic core body, the primary winding(s) being situated outwardly, and at least one shielding and/or insulating surface structure being arranged between the primary and secondary windings. The transformer (1) is characterized in that the outer primary winding (2) or winding parts is (are) made of at least one insulated high voltage cable and in that the at least one conductive intermediate surface structure (5) and/or the core body (4) are set at a referential potential which is a fraction of the output voltage or potential difference on the secondary side.

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: A magnetic element module includes a magnetic core assembly and at least one first winding structure. The magnetic core assembly includes a first magnetic core and a second magnetic core. The first magnetic core includes a first magnetic slab and a first magnetic post. The second magnetic core includes a second magnetic slab and a second magnetic post. The first winding structure is sheathed around the first magnetic post. The first magnetic post is placed on a second edge of the second magnetic slab. The second magnetic post is placed on a first edge of the first magnetic slab. The first magnetic core, the second magnetic core and the first winding structure are combined together, thereby producing the magnetic element module.

Abstract: An apparatus, system, and method are disclosed for combining multiple windings on a magnetic core. An integrated winding structure has a winding base and multiple winding extensions. The multiple winding extensions and the winding base are formed from a single sheet of electrically conductive material. Each of the multiple winding extensions has a base portion that extends from the winding base, a wrapping portion that extends from the base portion, and a connection portion that extends from the wrapping portion. The connection portions and the winding base each have electrical connection surfaces. Each of the multiple winding extensions forms one or more windings on the magnetic core.

Abstract: A transformer includes a zigzag transformer comprising first, second and third magnetic cores. The transformer further includes an auxiliary winding set comprising respective pairs of series-connected windings on respective pairs of the first, second and third magnetic cores, the pairs of series-connected windings having respective first terminals connected to respective AC phases of the zigzag autotransformer and respective second terminals configured to provide respective AC output phases.

Abstract: An Inductive Power Transfer (IPT) pick-up apparatus includes a magnetically permeable core, a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux and a second coil, being wound about the core so as to be inductively coupled therewith such that a current induced in the second coil is most sensitive to a second directional component of magnetic flux. The first directional component is substantially orthogonal to the second directional component.

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: An inductive element comprises at least two core-parts including a magnetically permeable material and at least one winding of an electrical conductor which can be a foil winding, a stranded wire (litz) winding or a conventional wire winding. Each core-part has an elongated center piece with an outer winding surface. At each of its longitudinal ends, the center piece has a contact element with a lateral contact surface. The winding is wound directly on the core-parts without a bobbin or the-like. The core-parts of the inductive element are arranged with their longitudinal axes essentially in parallel in a manner that the lateral contact surfaces of each contact element abut on a lateral contact surface of another core-part. Such an inductive element can be manufactured by co-axially arranging the core-parts and using them as a roll-shaft. After the windings have been applied to the core-parts, they can be rearranged, i.e. “flipped over,” in a stack-like arrangement in order to form an inductive element.

Abstract: A multi-primary and distributed transformer is provided for one or more sets of parallel-connected or series-connected power amplifiers. The transformer may include a plurality of primary windings, including a first primary winding, a second primary winding, a third primary winding, and a fourth primary winding, where each of the plurality of primary windings is not directly connected to any other of the plurality of primary windings, where each primary winding includes a respective positive port and a negative port for receiving respective differential signals, where each primary winding include a respective first number of turns; and a single secondary winding having a plurality of segments, including a first segment and a second segment, where each segment includes a second number of turns, the second number of turns greater than or equal to the respective first number of turns, where the single secondary winding includes at least one output port.