3416results about "Inductance with magnetic core" patented technology

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

An inductor provided in the present invention includes multiple windings in the magnetic core. The multiple windings comprise a first, second, third and fourth windings. Second and third windings have been connected in series to form an integrated series winding inside the magnetic core with two leads exposed on the surface of the magnetic core for electrical connection with the power supply circuit. The first winding is magnetically coupled to the second winding, and the fourth winding is magnetically coupled to the third winding. A pair of leads at both ends of the first winding and a pair of leads at both ends of the fourth winding are exposed on the surface of the magnetic core for electrical connection with the power supply circuit. The inductor is welded on the circuit board, which saves the number of weld points, makes circuit connection more reliable and reduces DCR.

A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.

The present application relates to a current imbalance regulation system and method for double-split parallel cables based on magnetic balance. The information acquisition device of the system is used to collect the current data and magnetic field data of each cable in the parallel cable; the excitation device is used to construct an auxiliary magnetic field for the parallel cable to eliminate the magnetic field effect caused by the current imbalance of the parallel cable; the control device is used to obtain each current data and each magnetic field data, and determine the current imbalance and magnetic field imbalance of the parallel cable based on each current data and each magnetic field data; when it is determined that the parallel cable meets the regulation conditions according to the current imbalance and magnetic field imbalance, the excitation device is controlled to operate until the parallel cable meets the current balance condition. The use of this system can quickly adapt to the load changes and environmental conditions of the double-split parallel cable, and improve the accuracy and efficiency of current imbalance regulation.

A coil device includes a wire, a core, and a terminal fitting. The wire includes a winding portion and a lead-out portion drawn out from the winding portion. The core includes a shaft and a flange at one end of the shaft. The shaft has the winding portion wound around. The terminal fitting includes a mounting portion connectable to a mounting substrate, a wire connecting portion connected to the lead-out portion, and an intermediate portion connecting the mounting portion and the wire connecting portion. The mounting portion and the wire connecting portion are disposed over a mounting surface of the flange. The intermediate portion has a route extending over an end surface of the flange and a side surface of the flange to connect the mounting portion and the wire connecting portion.

A microelectronics package comprises a substrate comprising at least two conductive layers that are separated by a first dielectric. At least one island comprising a magnetic material is embedded within the dielectric between the two conductive layers. An inductor structure extends within a via in the at least one island. The via extends between the two conductive layers. The inductor structure comprises a conductive wall along a sidewall of the via, and wherein the conductive wall surrounds a second dielectric and is electrically coupled to the two conductive layers.

Aspects of the present disclosure include galvanically-isolated (voltage-isolated) transformer-based integrated circuit (IC) packages providing cavities or spaces, which can, in some examples, be formed by preferentially heating the included magnetic core or a material coating the magnetic core. The provision of a space around the magnetic core allows the magnetic core to underdo size changes due to magnetostriction during use without being constrained or substantially constrained, thus, providing for improved magnetic performance. The circuits, ICs and IC packages and modules may include various types of circuits. In some examples, IC packages or modules may include a galvanically-isolated gate driver or other high voltage circuit.

The invention relates to an inductance device and a power supply. The inductance device comprises a magnetic core and coupling windings arranged in the magnetic core, pins of the windings are exposed out of the surface of the magnetic core to be connected with a power supply circuit, and the coupling windings comprise a first winding, a second winding, a third winding and a fourth winding; in the magnetic core, the second winding and the third winding are connected with each other to form a series winding, and the series winding is provided with two pins which are exposed out of the surface of the magnetic core so as to be connected with a power supply circuit; the first winding is in magnetic circuit coupling with the second winding, and the fourth winding is in magnetic circuit coupling with the third winding; a pair of pins at the two ends of the first winding and a pair of pins at the two ends of the fourth winding are exposed out of the surface of the magnetic core so as to be connected with a power supply circuit. The inductance device is welded on the circuit board to obtain a power supply, the number of welding spots on the circuit board is reduced, the reliability of circuit connection is higher, and the DCR is smaller.

A closed ferromagnetic housing has a pair of access ports and a center ferromagnetic post extending from and between opposite ends thereof. At least one conductor, contained within and completely surrounded by the closed ferromagnetic housing, is wound around the center ferromagnetic post such that the closed ferromagnetic housing, center ferromagnetic post, and at least one conductor form an inductor in which the ferromagnetic housing and the center ferromagnetic post define a core of the inductor and the at least one conductor defines a coil of the inductor. The access ports are configured to permit flow of coolant into the closed ferromagnetic housing and around the center ferromagnetic post to cool the at least one conductor.

An inductor component includes at least one conductive structure, a magnetic core, and a covering layer. Each conductive structure includes a conductive body and two conductive pins, the two conductive pins are spaced apart in a first direction, the first direction is an extension direction of the conductive body, and the two conductive pins extend in a second direction and are connected to the conductive body. The magnetic core is provided with at least two accommodating cavities. The two conductive pins are respectively inserted into accommodating cavities to connect the each conductive structure to the magnetic core, and the two conductive pins are in a one-to-one correspondence with the accommodating cavities. The covering layer is disposed on a side of the conductive body of the each conductive structure away from the two conductive pins and is configured to cover the each conductive structure.

The embodiment of the invention discloses a power supply module. The power supply module comprises a substrate, at least one inductance structure and a heat conduction structure. Wherein at least one bare chip is arranged in the substrate, and a first bonding pad is arranged on the top surface of the substrate. The inductor structure is arranged on the top surface of the substrate and is electrically connected with the bare chip through the first bonding pad; the inductor structure comprises a magnetic core; the heat conduction structure at least reuses part of the inductance structure or is an independent structure, the heat conduction structure comprises a first part formed between the top surface of the substrate and the bottom surface of the magnetic core, a second part extending from the bottom surface of the magnetic core to the top surface of the magnetic core and a third part formed on the top surface of the magnetic core, and the first part, the second part and the third part are connected together. Therefore, the heat conduction structure is formed and used as a heat conduction path of the bare chip, so that the heat dissipation performance of the power supply module can be improved when the chip is embedded into the substrate.

A printed circuit board (PCB) has electronic components of an electrical circuit mounted thereon. The PCB includes a wire that is coiled through the PCB one or more turns to form a coil of an inductor or an antenna that is integrated with the PCB. The PCB can include a cutout for accepting an inductor core. The shape and / or size of the inductor core can be varied to achieve a target inductance. Both ends of the wire can be electrically connected to corresponding nodes of the electrical circuit. One end of the wire can be electrically connected to a node of the electrical circuit, and the other end of the wire can be electrically connected to an antenna body.

A coil apparatus includes a coil unit including a coil, a base core that is a first core component, and a core module that is a second core component. The first core component includes a center leg that is a leg around which the coil is wound. The second core component includes a plurality of core segments arranged in a row with gaps between them. The second core component is connected to the leg to form a magnetic path together with the first core component.

To inhibit increase in a chip size and process costs, in a semiconductor device having an insulation type signal transmission element.SOLUTION: In a plan view, a semiconductor device 1010 is divided into a low potential region 1 taking the ground as its reference potential, a high potential region 2 taking floating potential as its reference potential, and a high breakdown voltage isolation region 3 provided between the low potential region 1 and the high potential region 2 to separate both regions. The semiconductor device 1010 comprises a signal transmission element provided on an element structure 21 in the high breakdown voltage isolation region 3. The signal transmission element comprises: a primary coil 18 that is provided on the side of low potential region 1 of the high breakdown voltage isolation region 3 and is connected to the low potential region 1; and a secondary coil 19 that is provided on the side of high potential region 2 of the high breakdown voltage isolation region 3 and is connected to the high potential region 2. The primary coil 18 and the secondary coil 19 are magnetically coupled with each other by a magnetic field in a direction in parallel with a principal surface of a p-type substrate 4.SELECTED DRAWING: Figure 1

One object is to provide a magnetic body having a high mechanical strength. A magnetic body according to one embodiments of the present invention includes: first particles of a first alloy containing Fe and Cr; second particles of a second alloy containing at least one of Al or Mn; and bonding portions containing at least one of Al oxide or Mn oxide, the bonding portions bonding the first particles to each other. The bonding portions containing at least one of Al oxide or Mn oxide increase the mechanical strength of the magnetic body.

An inductor includes a first wire and a second wire, a first magnetic layer containing magnetic particles having an approximately spherical shape, a second magnetic layer containing magnetic particles having an approximately flat shape, and a third magnetic layer containing magnetic particles having an approximately flat shape. The relative permeability of each of the second magnetic layer and the third magnetic layer is higher than the relative permeability of the first magnetic layer. A fourth surface of the first magnetic layer has a second concave portion. A sixth surface of the third magnetic layer has a fourth concave portion.

An example planar inductor includes a winding structure including a plurality of conductive windings arranged in layers of a printed circuit board (PCB) around a core, where the plurality of conductive windings include at least a top winding and a bottom winding. The planar inductor includes a conductive shield encasing the winding structure. The conductive shield includes an upper conductive shield layer disposed over the winding structure in a first direction, a lower conductive shield layer disposed under the winding structure in a second direction opposite the first direction, an inner conductive shield disposed within and around the plurality of conductive windings, and an outer conductive shield disposed around and outside the plurality of conductive windings.

An inductor component includes an element assembly, a coil conductor inside the element assembly, and an outer electrode on an outer surface of the element assembly and electrically connected to the coil conductor. The element assembly includes a lower surface and a side surface. The outer electrode has a lower portion at the lower surface and a side portion at the side surface continuously with the lower portion. The coil conductor includes conductor patterns which form parts of an annular path on virtual inner surfaces intersecting both the lower and side surfaces and lined up at intervals. When a distance A is a shortest distance between the coil conductor and a boundary portion between the lower and side portions and a distance B is a shortest distance between the coil conductor and an end portion of the lower portion opposite the boundary portion, B / A is from 0.2 to 0.6.

An inductor provided in the present invention, includes a magnetic core and one or more conductive coil assembly embedded in the magnetic core; each conductive coil assembly comprises an inner conductive coil and an outer conductive coil surrounding the inner conductive coil. The inner conductive coil is enclosed in the outer conductive coils to form an inner and outer nested structure; the inner conductive coil and the outer conductive coil are arranged in parallel and spaced apart at a distance therebetween closed enough to obtain a coupling coefficient of more than 0.9.

To prevent the occurrence of a short-circuit failure through a magnetic body layer. A coil component includes interlayer insulating films and conductor layers which are alternately stacked on a magnetic body layer. The conductor layers respectively have coil patterns, terminal patterns which are provided at positions overlapping a terminal electrode, and terminal patterns which are provided at positions overlapping a terminal electrode. The terminal patterns are connected to the terminal electrode, and the terminal patterns are connected to the terminal electrode. The terminal pattern is insulated from the terminal electrode. This can prevent a short circuit failure between a coil pattern or terminal pattern and the terminal pattern through the magnetic body layer.

A coil component includes a drum core including a core portion, first and second flange portions; first, second, third and fourth outer electrodes; and first and second wires. When the first wire is traced from a first wire end to a second wire end, a turn including a last point that makes contact with an outer surface of the core portion is referred to as an N-th turn. When the second wire is traced from a first wire end to a second wire end, a turn including a last point that makes contact with the outer surface of the core portion is referred to as an M-th turn. The M-th turn of the second wire and the N-th turn of the first wire do not include an intersection portion at which the M-th turn of the second wire and the N-th turn of the first wire intersect.

The invention provides a coil assembly. The coil component includes: a body including a first surface and a second surface opposite to each other in a first direction and a third surface and a fourth surface opposite to each other in a second direction; a coil disposed in the main body; a first extraction electrode connected to an outer end of the coil and protruding to the first surface; a second extraction electrode connected to an inner end of the coil and protruding to the second surface; a first external electrode disposed on the third surface, extending to the first surface, and connected to the first extraction electrode; and a second external electrode disposed on the third surface, extending to the second surface, and connected to the second extraction electrode, in which a thickness of each of the first extraction electrode and the second extraction electrode in the second direction is smaller than a thickness of the coil in the second direction.

The present disclosure provides a manufacturing method of a magnetic element, comprising: forming an insulation layer on an outer side of at least one section of a magnetic column of a magnetic core; forming a metal wiring layer on an outer side of the insulation layer through a metallization process; and dividing at least part of the metal wiring layer into a multi-turn metal winding through a mechanically dividing process.

To reduce a difference in DC resistance and / or inductance value of each of a plurality of coil conductors, in an inductor including the coil conductors inside.SOLUTION: A layered inductor of the present disclosure includes: an element assembly 10 constituted by laminating a plurality of magnetic layers ML in a lamination direction; external electrodes E1-E4 provided on a bottom face of the element assembly 10; winding parts W1, W2 formed by connecting each end of a plurality of conductors C1, C2, respectively, by a via V, the conductors being disposed in layers different from each other of the element assembly 10; and coils 21, 22 including through holes T1-T4, respectively. The conductors C1, C2 are provided in the same layer, and the area of the conductor C1 in the same layer in plan view is approximately equal to the area of the conductor C2 in plan view. As viewed in a direction crossing the lamination direction, the conductor C1 and the conductor C2 are alternately disposed.SELECTED DRAWING: Figure 2

The utility model relates to an integrated inversion inductor which comprises a sealing shell and an inductor assembly arranged in the sealing shell, the inductor assembly comprises a coil, a first magnetic core body, a second magnetic core body, a first sheath and a second sheath, and the coil comprises two installation holes formed in a surrounding mode and a connecting leading-out end. Magnetic core columns are arranged on the first magnetic core body and the second magnetic core body, the first protective sleeve covers the first magnetic core body, the second protective sleeve covers the second magnetic core body, and the first protective sleeve and the second protective sleeve are connected through a connecting plug-in. According to the integrated inversion inductor, one or more coils are fixed through the magnetic core columns on the first magnetic core body and the second magnetic core body, the coils, the first magnetic core body and the second magnetic core body are fixedly assembled from the upper end and the lower end through the first sheath and the second sheath, integration of multiple inductors is achieved, and the size of the integrated inversion inductor is small; the integrated inverter inductor is simple in structure and meets the requirements of integration and miniaturization of electronic products.

A first winding is wound around a first middle column of a first magnetic core, and a second winding is wound around a second middle column of a second magnetic core. The third magnetic core is located between the first winding and the second winding, the third magnetic core has a through hole, and both the first middle column and the second middle column extend into the through hole. When a direction of a magnetic field generated by the first winding is the same as a direction of a magnetic field generated the second winding, the first magnetic core and the second magnetic core generate common-mode inductance. When a direction of a magnetic field generated by a third winding is opposite to a direction of a magnetic field generated a fourth winding, the third magnetic core generates differential-mode inductance.