Abstract: A transformer includes a primary coil unit including a primary winding, a first insulating portion and a shielding layer, wherein the first insulating portion wraps the primary winding, the shielding layer covers an outer surface of the first insulating portion, the shielding layer includes an opening, and a part of the first insulating portion is exposed at the opening; an outgoing wire terminal in the opening and having a first portion and a second portion connected with each other, the first portion coupled to the primary winding and wrapped by the first insulating portion, the second portion being exposed out of the first insulating portion; a connecting wire having a first end connected to the second portion of the outgoing wire terminal; and an insulating sleeve partially wrapping the connecting wire, and a second end of the connecting wire being exposed out of the insulating sleeve, (FIG. 17).

Abstract: The present disclosure provides a high-voltage transformer and an electronic power apparatus. The high-voltage transformer includes a magnetic core, a secondary coil unit, and a primary coil unit. The secondary coil unit includes a secondary winding; and the primary coil unit includes a primary winding and an insulating portion. The insulating portion forms at least one through hole. At least one primary winding encircle at least one through hole and is wrapped by the insulating portion and fixed in the insulating portion. The magnetic core passes through at least one through hole. A shielding layer is formed on a surface of the insulating portion, and the shielding layer is used for connecting a safety ground and the electrical conductivity of the shielding layer is not more than 5000 S/m.

Abstract: A reactor assembly including a first core formed of a plurality of stacked E-shaped planar metal laminates welded together, and a second core formed of a plurality of stacked I-shaped planar metal laminates welded together. The first core includes a plurality of legs having bottom surfaces, the plurality of legs including first and second outer legs and a center leg. A bobbin assembly is provided with a plurality of bobbins each having a hollow inner cavity, and wire wound around the bobbin. The plurality of bobbins including first and second outer bobbins and a center bobbin. A U-shaped spring clip includes a pair of clip arms that each extend down through a different one of the inner cavities, and tab apertures that are engaged with matching latching tabs on the second core, such as on a mounting foot secured to the second core.

Abstract: A transformer configured to receive a primary incoming voltage and provide at least two secondary output voltages. The transformer includes at least one secondary output assembly which includes at least two secondary voltage stabs, the number of voltage stabs being the same as the number of secondary output voltages, connected and configured to provide access to a respective secondary output voltage. The chosen secondary output voltage is connected by coupling a tap change link between a lug landing and either of the at least two secondary voltage stabs. Another of the secondary output voltages is provided by connecting coupling the tap change link between the lug landing and the other of the at least two secondary voltage stabs.

Abstract: A ceramic core includes an axial core part extended in the longitudinal direction, and a pair of flanges located at both ends in the longitudinal direction of the axial core part and projecting around the periphery of the axial core part in the height and width directions. The ceramic core has a length dimension L in the longitudinal direction of about 0 mm<L?1.1 mm. A ratio t/T of the thickness dimension t in the height direction of the axial core part to the height dimension T in the height dimension of the flanges, is about 0<t/T?0.6. A ratio w/W of the width dimension w in the width direction of the axial core part to the width dimension W in the width direction of the flanges, is about 0<w/W?0.6.

Abstract: This disclosure regards a magnetic resonance imaging system including a scanner, and gradient drivers. The scanner is to be implemented within a scan room that is shielded from electromagnetic interference. Gradient coils are designed to create a linear gradient in the magnetic field generated in the scanner by a primary magnet. These coils are energized by gradient drivers. The gradient drivers use transformers and other electrical devices in a switching stage configured to generate pulse-width-modulated power. The transformers may have non-magnetic cores to facilitate implementing the gradient drivers within the scan room. The gradient drivers also use a filtering stage which uses inductors and other electrical devices to smooth the pulse-width-modulated power. The inductors within the filters may have non-magnetic cores to facilitate implementing the gradient driver within the scan room. Additionally, an inductor with a hollow wire may be used to circulate fluid to facilitate cooling the gradient driver.

Abstract: The invention discloses a high voltage wire leading method for a stereoscopic wound core open ventilated dry-type transformer, which comprises the steps of fixing stereoscopic wound cores arranged in a triangular shape between an upper clamp and a lower clamp, winding A, B and C three phase coils on the stereoscopic wound cores and arranging a high voltage wire leading bracket on the upper clamp, wherein the high voltage wire leading bracket is provided with connecting terminals which respectively correspond to the A, B and C three phase coils; and each phase coil is respectively provided with a wire inlet terminal and a wire outlet terminal. In the high voltage wire leading method, each of the three A, B, and C phase coils is provided with two wire outlet terminals and the numbers of turns of the three phase coils are still equal, so that under the condition of not changing the numbers of the turns of the coils, the added wire outlet terminals make leading more conveniently and the lead structure simpler.

Abstract: High-voltage, high-frequency and high-power transformer having a core (1) on which a primary winding (2) is disposed on which a secondary winding (4) is disposed in an insulated manner, whereupon the entire assembly is housed and mounted in an insulator (3), wherein the insulator (3) is made up of two parts or halves (6) and (7) symmetrical with respect to a transverse vertical plane, each part having a hollow tubular element (3.1) housed inside an outer housing (3.2) of each half of the insulator, defining in each part an annular space (3.3) comprised between the outer wall of the tubular element (3.1) and the inner wall of the outer housing (3.2), where the secondary or high-voltage winding is disposed, the insulator (3) presenting in its outer housing (3.2) a slot (5), which is situated at zero volts level, and though which the oil penetrates towards the secondary winding.

Abstract: Disclosed are a coil component capable of securing insulation between primary and secondary coils while being miniaturized, a mounting structure thereof, and an electronic device having the same. The coil component includes a bobbin including a winding part around which coils are wound and first terminal fastening parts fastened to a plurality of first connection terminals; and a second terminal fastening part including terminal blocks protruded from the bobbin and a plurality of second connection terminals fastened to the terminal blocks, wherein the second terminal fastening part is mounted on a substrate while being spaced apart from the bobbin after the coils are wound therearound.

Abstract: A common mode filter is disclosed. The common mode filter in accordance with an embodiment of the present invention includes: a magnetic substrate; a coil pattern formed on the magnetic substrate; a dielectric layer formed on the magnetic substrate so as to cover an upper part, a lower part and a side surface of the coil pattern; and a first coupling agent interposed between the magnetic substrate and the dielectric layer so as to prevent the magnetic substrate and the dielectric layer from being separated.

Abstract: The coil form according to the invention for forming an inductive element includes a hollow cylindrical mantle portion, two flange portions and a slit. The flange portions and the mantle portion form a winding chamber for winding therein a wire that forms a first winding or a part of a first winding of the inductive element. The coil form, which is completely made of copper, forms a second coil or a winding of a second coil of the inductive element. Due to the increased contact surface between the first and the second coil the heat dissipation capabilities and the magnetic coupling between the coils are increased. This in turn results in an increased power density of the inductive element.

Abstract: A bobbin for spacing windings around an inductor core includes an interior spacer defining an exterior surface for coupling interior spacer with an annular inductor core and an interior facing surface opposing the exterior surface for receiving inductor windings. The interior spacer has a thickness profile between the exterior and interior facing surfaces for spacing the windings inward from the inductor core to reduce magnetic fringe flux effects on the windings. An inductor body includes an inductor core coupled to bobbin. A wound inductor includes windings wrapped around the inductor body formed by the inductor core and bobbin.

Abstract: A wire-wound electronic component, a core for a wire-wound electronic component and a method for manufacturing a core for a wire-wound electronic component are provided. A winding core portion of a core of a wire-wound electronic component includes flanges at respective ends of the winding core portion, and project in directions perpendicular to an axial direction of the winding core portion. Concaves are positioned at corners formed of adjoining surfaces of the flanges that adjoin to the winding core portion and end surfaces of the flanges that are located at ends in a first perpendicular direction, which is one of the projecting directions of the flange. Connecting surfaces, which connect contact portions where the flanges contact with the winding core portion to the end surfaces, are at least part of inner peripheries of the concaves. All normal vectors of the connecting surfaces have components in the first perpendicular direction.

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: Exemplary embodiments provide a nanomagnetic structure and method of making the same, comprising a device substrate, a plurality of nanomagnetic composite layers disposed on the device substrate, wherein an adhesive layer is interposed between each of the plurality of nanomagnetic composite layers. Metal windings are integrated within the plurality of nanomagnetic composite layers to form an inductor core, wherein the nanomagnetic structure has a thickness ranging from about 5 to about 100 microns.

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

Abstract: An inductor comprises a magnetic core and a coil. The magnetic core has a wound portion around which the coil is wound, and a peripheral portion. The magnetic core is formed from two or more preliminarily-formed-bodies which are pressure-molded in a state where the coil winds one or more preliminarily-formed-bodies which form the wound portion. The preliminarily-formed-bodies include at least one preliminarily-formed-body which forms the peripheral portion while not form the wound portion. Each of the preliminarily-formed-bodies is made of a mixture of flat magnetic powders and an organic binder so as to have a plate-like shape. The flat magnetic powders are oriented so as to be parallel to the preliminarily-formed-body.

Abstract: A composite isolating transformer includes a main winding rack and a support rack. The main winding rack includes two winding portions coaxially formed to hold respectively a primary coil and a secondary coil, and a separating portion between the two winding portions. The support rack includes a first support half member and a second support half member coupling together to encase at least one winding portion. The first and second support half members have respectively a first cover and a second cover to cover two lateral sides of the winding portion, respectively a first insulating portion and a second insulating portion corresponding to the separating portion and extending towards the separating section to couple together, and respectively a first isolating portion and a second isolating portion extended from the first and second insulating portions towards the winding portion to cover another two lateral sides of the winding portion.

Abstract: A choke coil includes a core that is formed to have a ring shape and a winding member that is provided with an electrically conductive wire wound around the core. A housing member, interposed between the core and the winding member, is formed of a material having non-magnetic and non-conductive properties, has a ring shape corresponding to the core, and covers the core. The housing member is formed in such a manner that a separation distance along a radial direction between an outer surface of the housing member and an outer surface of the core becomes uniform over a circumferential direction.

Abstract: A power supply circuit includes an input configured to receive an input voltage, an output configured to supply an output voltage, at least one inductor, at least one diode, and at least one switch. The inductor may have a parasitic capacitance less than about 100 pF. Related inductors are also disclosed.

Abstract: A reactor includes a core body having a U-shape block core and an I-shape block core arranged with a gap, a coil wound on an outer circumference of the core body, and a gap plate inserted into the gap between the U-shape block core and I-shape block core. The gap plate includes a coil retaining member extending towards and retaining the coil. By such a configuration, a reactor having temperature increase at the coil suppressed can be provided.

Abstract: The present invention provides a wirewound inductor of a switching power supply and a switching power supply with the wirewound inductor. The wirewound inductor comprises a magnetic core and a winding wound on the magnetic core. A buffering cushion is disposed between the magnetic core and the winding. The wirewound inductor provided by the present invention is provided with the buffering cushion between the magnetic core and the winding to absorb the dimension changes of the magnetic core caused by the magnetostriction phenomenon, and thus the relative positions of the components are maintained, the collision between the magnetic core and the winding can be prevented, and then the noise is reduced.

Abstract: There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and a terminal connection part protruding from one side of a lower flange part formed at a lower end of the body part and having external connection terminals connected thereto; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an outer bobbin and an inner bobbin inserted into the through-hole of the outer bobbin to thereby be coupled thereto, and the terminal connection part of the inner bobbin protrudes in an outer diameter direction thereof.

Abstract: The present invention provides a transformer having assembled bobbins and a voltage transformation module having the transformer. The transformer includes a base, bobbins, secondary windings and two magnetic cores. The base is provided with a penetration hole. The bobbins are disposed in the base and each has an annular groove, a hollow portion corresponding to the penetration hole, and protrusions formed on a surface of the bobbin. The protrusions form a gap between the two adjacent bobbins when the two adjacent bobbins are assembled with each other. The secondary windings are disposed between the bobbins and each has a through-hole corresponding to the hollow portion. The two magnetic cores penetrate the penetration hole of the base, the hollow portions of the bobbins, and the through-holes of the secondary windings to assemble them together.

Abstract: A combined structure of hollow bobbin and conductive sheet for a transformer includes a hollow bobbin and at least one conductive sheet. The hollow bobbin includes an outer surface and at least one positioning structure formed on the outer surface. The conductive sheet is fit on the outer surface of the hollow bobbin and includes a main body and at least one engaging structure. The main body has a hollow portion, making the main body to have an inner circumference. The engaging structure is formed on the inner circumference of the main body and is engaged with the positioning structure of the hollow bobbin. The transformer includes at least one winding disposed on the outer surface of the hollow bobbin and abutting against the conductive sheet.

Abstract: A transformer includes a bobbin, an iron core assembly, and a first sleeve. The bobbin includes a main body and a channel passing through the main body. The iron core assembly includes a first iron core and a second iron core. The first end of the first iron core and the second end of the second iron core are disposed near the periphery of the bobbin. The first sleeve is disposed at a first gap between the first end and the second end, so as to make the first end and the second end to be accommodated within the first sleeve. And, the first end is aligned opposite to the second end.

Abstract: A transformer system includes a cabinet and at least one toroidal transformer with each toroidal transformer being supported in a cradle. Each cradle is mounted in the cabinet and supports its toroidal transformer in a vertical or horizontal orientation such that a central air-filled region thereof is arranged in a substantially horizontal or vertical orientation, respectively. The cradle supports active and passive cooling arrangements for the toroidal transformer, while also providing modular attributes for the transformer system.

Abstract: A vertical transformer comprising a core provided with a middle leg installing a first and a second coils, a side leg, a first connection part connecting an end of the middle leg and that of the side leg, and a second connection part connecting the other end of the middle leg and that of the side leg, a first bobbin provided with a first hollow cylinder where at least either the first or the second coil is wound, and a core on-board face connected to an end of the first hollow cylinder, and an adhesive hardened part connecting a connection side face, and the core on-board face, and formed by hardening an adhesion, wherein the core on-board face is provided with a positioning part positioning the connection side face, and a positioning projection, is formed on both sides of the first connection part.

Abstract: A non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer. The core of the transformer has a stereo structure. Three lower yokes are placed on a base of a lower clamp, and an upper clamp and the lower clamp are connected with each other by several press screws. Low-voltage windings include a foil-wound or wire-wound cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in an insulate paper and processed through vacuum pressure impregnation. Upper and lower padding blocks support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure.

Abstract: A coil (60). The coil (60) comprises a conductor formed in the shape of winding layers (68). The conductor comprises an insulating coating (96) surrounding a conductive core (94). The coil further comprises paper strips (80) disposed proximate one or more of the winding layers (68) to provide strain relief against mechanical forces exerted on the coil (60) and to provide electrical insulation between winding layers (68). In an embodiment where the coil (60) further comprises a core (70) the paper strips (80) are beneficially disposed at corners (70A, 70B, 70C, and 70D) of the core (70) and further between winding layers (68) at the corners (70A, 70B, 70C, 70D).

Abstract: The invention provides a reactor to be built in a power converter. In the reactor, an induction component composed of a coil being a winding of a conductor wire, a core in which interior a magnetic path is formed and an insulation bobbin positioning and engaging a wire wound part of the coil is housed in a case to be soaked with a mold resin. Inner bottom face of the case has a plurality of surfaces having not less than two different heights letting the outside bottom of the case a reference surface, and the lower end face of the core is in contact with any of the case inner bottom surfaces excluding the lowest inner bottom surface. As a result, the reactor is suitable for on-vehicle applications to achieve reduced article variation as well as a longer service life, a shorter operation time and decreased cost.

Abstract: There are provided a transformer and a flat panel display device including the same capable of securing leakage inductance and allowing easy manufacturing. The transformer according to the embodiment of the present invention includes: a bobbin part including a plurality of bobbins each including a tube-shaped body part having a penetration hole therein and one of flange parts protruded outwardly from both sides of the body part; a core inserted into the penetration holes in the bobbins to form a magnetic circuit; a coil part including respective coils wound around the bobbins; and a bobbin fixing member combined with either side surface of the bobbin part in which at least two of the bobbins are laminated, to fix and combine at least two of the bobbins.

Abstract: A transformer capable of security insulting reliability and a power module having the same are provided. The transformer includes: a winding unit having at least one winding space in which a plurality of coils are wound in a stacked manner on an outer circumferential surface of a cylindrical body portion; and a terminal fastening unit formed to extend from one end of the winding unit in an outer diameter direction and having a plurality of external connection terminals fastened to an end thereof, wherein a width of the winding space is less than 0.45 times that of a diameter of the body portion.

Abstract: It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding (3) and at least one low voltage winding (2) concentrically assembled around a core column (1.2,1.3), the low voltage and high voltage windings (2,3) being electrically isolated from a solid material, a core window (20) being defined as a space between two core columns (1.2,1.3), the transformer comprising at least one electrical insulation sheet (4) assembled on at least a core window (20) of said transformer, the assembly of the electrical insulation sheet (4) being defined in the longitudinal direction (300) of the transformer. Such sheet (4) avoids the formation of spiral around the core by immersion water or conductive dust.

Abstract: A transformer includes a base, a magnetic core unit and a winding assembly. The base includes a base body and a pin disposed on the base body. The magnetic core unit is disposed in the base body, and the winding assembly is disposed in the magnetic core unit. A winding of the winding assembly is connected to the pin.

Abstract: A coil device 10 comprises a first bobbin 40 provided with a first winding part 45 at an outer circumference and a second bobbin 50 provided with a second winding part 55 at an outer circumference. A plurality of partition walls 46, separating portions of the wire 22 which are adjacent to each other along the scroll axis Z of the first wire 22 are formed on the first winding part 45 along the scroll axis at predetermined intervals. A section width w1 of each section 47, which is along the scroll axis Z, separated by the partition walls 46 is determined so that only one wire 22 can pass through. A height of the partition walls 46 is determined so that one or more of the wires 22 can pass through. At least one connecting groove 46a, connecting each section which are adjacent to each other, is formed on each partition wall 46.

Abstract: A non-contact charging module with which reduction in thickness can be achieved while reliable insulation is maintained between conducting wire and magnetic sheet. This non-contact charging module comprises: a planar coil section (2) constituted by coiling a conducting wire; a conductive magnetic sheet (3) having the planar coil section (2) arranged thereon, with an insulating sheet (4) therebetween; and a recess (33) or slit (34) provided in the conductive magnetic sheet (3) and extending to an edge of the conductive magnetic sheet (3) from the starting point of the winding of the planar coil section (2). The conducting wire of the planar coil section (2) is stored in the recess (33) or slit (34) by the insulating sheet (4) being pushed into the recess (33) or slit (34). The conducting wire of the planar coil section (2) is insulated from the conductive magnetic sheet (3) by the insulating sheet (4).

Abstract: In a coil bobbin, a cover section is provided as a spacer section which abuts against a heat radiating section that functions as a heat radiating terminal of the first coil winding, from a direction following the axis line of the tubular section. Here, when performing heat radiation from the coil winding, since the cover section which abuts against the heat radiating terminal when the coil winding is fixed to the heat radiating object functions as an insulating member, then the radiation of heat from the coil winding is raised without increasing the number of parts.

Abstract: A vacuum cast or “solid” transformer coil assembly and a method of manufacturing thereof are provided. A solid transformer coil assembly, according to an embodiment of the invention, includes a dielectric substrate, the coil windings provided around the substrate, and an epoxy compound encapsulating the substrate and the coil windings. The substrate is provided with raised “buttons” comprising the same epoxy material as the epoxy compound used for encapsulation. The buttons maintain a specific distance between the coil and the dielectric substrate. The buttons are arranged such that they support the windings and allow the encapsulating epoxy to flow around them flooding the entire mold without entrapping air or creating voids.

Abstract: A coil assembly having a simplified bobbin structure and facilitating connection of a draw-out portion of a wire to a pin terminal. A coil assembly includes first and second pin support portions protruding in a protruding direction from a terminal base. First and second pin terminals protrude in the protruding direction from free end faces of the first and second pin support portions, respectively. The draw-out portion is electrically connected to an associated one of the pin terminals. The second pin support portion provides a protruding length from the terminal base greater than that of the first pin support portion, and the free end face of the second pin support portion is positioned downstream, in the protruding direction, of an imaginary linear draw-out portion directed linearly from the wire engaging portion to the first pin terminal, such that the second pin support portion is positioned and sized to intersect with the imaginary linear draw-out portion.

Abstract: A terminal element, a motor winding structure and a manufacturing method are disclosed. The terminal element includes a fixing portion, a positioning portion and a buffering portion. The fixing portion is disposed at one end of the terminal element and has a serrate fixing pattern. The fixing portion is connected with a connecting position of the motor winding bobbin. The positioning portion is disposed adjacent to the fixing portion and urged against the motor winding structure for positioning the fixing portion while it is connected with the connecting position. The buffering portion has a first bending and a second bending, and the first bending is connected to positioning portion. The buffering portion absorbs the force applied to the terminal element.

Abstract: A combined transformer is provided. The transformer comprises at least three bobbins arranged abreast and a core assembly. Each of the bobbins includes two separated guard plates, a winding column, a through groove and two metal pins; the winding column is disposed between the guard plates, while the through groove extends through the guard plates and the winding column. Furthermore, the two metal pins are disposed on one of the guard plates; the winding column is wound with a coil, and two end portions of the coil are connected to the two metal pins respectively. The core assembly includes two separated magnetic plates and at least three separated magnetic columns disposed between the magnetic plates. The bobbins are sandwiched between the magnetic plates, and the magnetic columns are located in the through grooves. Thus, the combined transformer can have a reduced thickness and multiple outputs.

Abstract: A transformer includes a core inducing a magnetic field and including an upper core and a lower core; a first insulating part in an inner side of the core; a secondary winding part in an upper portion of the insulating part, a part of the secondary winding part being exposed out of the core; a second insulating part in an upper portion of the secondary winding part to insulate the second winding part; a primary winding part in an upper portion of the second insulating part; and a film between the upper core and the lower core.

Abstract: Magnetic components including pre-formed clips are described that are more amenable to production on a miniaturized scale. Discrete core pieces can be assembled with pre-formed coils and physically gapped from one another with more efficient manufacturing techniques.

Abstract: An asymmetrical planar transformer having controllable leakage inductance is provided. The asymmetrical planar transformer includes a circuit board, a winding rack, a primary winding, a secondary winding, and a magnetic core assembly. Via hole is formed on circuit board. Winding rack includes several annular plates, a tubular shell, and a through hole. The first, second, and third annular plates are arranged in parallel. Position of through hole is corresponding to that of via hole. Primary winding is disposed between first and second annular plates, and is electrically connected with circuit board. Secondary winding, with annular shape, is disposed between second annular plate and third annular plate, and is electrically connected with circuit board. Magnetic core assembly includes magnetic column which is passed through via hole of circuit board and through hole of winding rack. Through hole is extended through secondary winding, first annular plate, second annular plate, and third annular plate.

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: A method is disclosed for production of a winding block for a coil of a transformer, having at least one winding composed of electrically conductive wire or strip material with a plurality of turns. An insulating layer is composed of electrically insulating fiber material with a specific number of windings of the insulating fiber material. The turns composed of electrical conductive material are fitted independently of the turns of the insulating material and, after a predetermined number of turns of electrically conductive material have been fitted, a smaller number of turns of electrically insulating material are fitted over the same section onto these turns of electrically conductive material, such that electrically insulating material which remains before reaching a number of turns of electrically conductive material is used as edge insulation.

Abstract: A common mode choke EMI filter of an LED driver includes a holding structure, a plurality of winding magnetic cores, a first coil and a second coil. The holding structure has a plurality of holding spaces and a plurality of conductive pins. The winding magnetic cores are held in the holding spaces, and have respectively a first axle and a second axle. The first coil is wound on the first axles and straddles across different winding magnetic cores, and the second coil is wound on the second axles and straddles across other different winding magnetic cores. The holding structure includes a plurality of seats coupled in a juxtaposed manner through the first and second coils. By winding the first and second coils with greater length or diameter on the first and second axles of the winding magnetic cores, greater power or current adopted on a filter can be enhanced.

Abstract: A magnetic element includes a bobbin, a first winding assembly, a second winding assembly and a magnetic core assembly. The bobbin includes a winding part, a first extension part and a second extension part. The first extension part and the second extension part are separated from each other by the winding part. The first winding assembly is wound around the winding part of the bobbin, and includes plural first terminals. The second winding assembly is wound around the winding part of the bobbin, and includes plural second terminals. The magnetic core assembly includes a first window and a second window. The first extension part is protruded out of the first window. The second extension part is protruded out of the second window. At least one of the first terminals and at least one of the second terminals are simultaneously fixed on the first extension part and/or the second extension part.

Abstract: A multi-point connection module comprising a supporting plate provided with a plurality of taps, and a connector which is coupled to the supporting plate. The connector allows the connection of the supporting plate to an external face of a transformer coil having a plurality of turns. The taps are arranged on the supporting plate so that they mate with corresponding turns of the coil.