Abstract: A coupled inductor with adjustable leakage inductance is provided. The coupled inductor includes a first magnetic element, a second magnetic element, and two coil assemblies. The first magnetic element includes a first magnetic plate and at least two first magnetic core columns, which are disposed on the first magnetic plate and spaced apart along an arrangement direction. The second magnetic element is coupled to the first magnetic element. The second magnetic element includes a second magnetic plate and at least two second magnetic core columns, which are disposed on the second magnetic plate and spaced apart along the arrangement direction. The second magnetic core columns are respectively coupled to the first magnetic core columns to form magnetic core column bodies. The coil assemblies have a same quantity as that of the magnetic core column bodies, and the coil assemblies are respectively sleeved around the magnetic core columns.

Abstract: To suppress a decrease in mounting strength of a coil component, a coil component includes a drum core including a winding core portion, and first and second flange portions. The coil component includes a first metal terminal which includes a bonding portion, a connecting portion, and a mounting portion. The bonding portion is bonded to the first flange portion with an adhesive. The mounting portion is closest to the first positive direction side in the first metal terminal and is separated from the first flange portion toward the first positive direction side. The connecting portion connects the bonding and mounting portions. The first flange portion has a facing surface that faces the mounting portion, a bonding surface, and a first inclined surface between the facing and bonding surfaces. The distance from the facing surface increases in a direction parallel to the first axis toward the bonding surface.

Abstract: An electronic component that includes a base body and insulating film covering an outer surface of the base body. The outer surface has a first boundary surface including a curved surface that is present at a boundary between a first surface and a second surface of the outer surface. An inner angle of the base body among angles formed by the first surface and the second surface is less than 180 degrees. The average value of a thickness dimension from the first boundary surface to the surface of an insulating film portion covering the first boundary surface is greater than the average value from the first surface to the surface of an insulating film portion covering the first surface in the thickness direction.

Abstract: A prefabricated transformer station, an oil-immersed transformer, and a photovoltaic system, and relates to the field of power distribution technologies. The prefabricated transformer station includes a container housing and the oil-immersed transformer. A transformer room is provided inside the container housing, and a top cover of the transformer room is opened. The oil-immersed transformer is installed in the transformer room, and a height of a top of an oil conservator of the oil-immersed transformer is higher than a height of a side wall of the transformer room. The prefabricated transformer station can provide more space for a fuel tank, so as to improve a capacity of the oil-immersed transformer.

Abstract: A coil component includes a body having a first surface and a second surface opposing in a thickness direction, and a first side surface and a second side surface opposing in a width direction while each connecting the first surface and the second surface to each other. A coil unit is disposed in the body. First and second external electrodes are disposed to be spaced apart from each other on the body, while respectively being connected to the coil unit. A cover portion disposed on the second surface of the body and at least partially covering the first and second external electrodes. A cross-section perpendicular to the first surface of the body and parallel to the width direction and traversing the body and the cover portion has substantially the same size in the width direction and in the thickness direction.

Abstract: A packaging substrate and a method for mounting an integrated circuit and/or a circuit component is presented. The packaging substrate includes an upper surface for mounting the integrated circuit and/or circuit component; a lower surface opposite to the upper surface, wherein the lower surface is for mounting to a printed circuit board (PCB); a non-conductive material; wherein the non-conductive material is a plastic: an inductor structure at least partially embedded in the non-conductive material; first and second conductive materials, and conductive pillars, arranged to form a first coil and a second coil having an inductance; wherein the first coil and second coil are arranged as a toroid transformer wound in a double helix configuration.

Abstract: A transformer unit includes a primary side coil and a secondary side coil that are disposed to face each other in a winding axis direction. One of the primary side coil and the secondary side coil includes a metal plate winding body. The other of the primary side coil and the secondary side coil includes a first winding and a second winding, which have a greater number of turns than the metal plate winding body. The first winding and the second winding are arranged on opposite sides of the metal plate winding body in a winding axis direction.

Abstract: It is an object to provide a thin film inductor element using a new type of emergent electromagnetic field, which has a not so high difficulty in selecting materials, and also has a not so high temperature dependency. A thin film inductor element is characterized by including: a stacked layer film including a magnetic body layer, and a non-magnetic body layer or an antiferromagnetic body layer stacked therein, and a pair of electrodes, and is characterized in that the magnetic body layer, and the non-magnetic body layer or the antiferromagnetic body layer are extended in an arbitrary shape in a direction orthogonal to a stacking direction, and a vertical orientation of the stacking direction is also arbitrary, the magnetic body layer has a substantially uniform magnetization structure, and the pair of electrodes are provided at both ends to which the stacked layer film is extended, and an alternating current or a high frequency current is applied.

Abstract: An isolation transformer includes a common mode choke, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, and a third capacitor. Each of the first capacitor and the second capacitor is connected to the common mode choke through an end. Each of the first resistor and the second resistor is connected to another end of the second capacitor through an end. The third resistor is connected to another end of the first resistor and another end of the second resistor through an end, and connected to the reference potential point through another end. The third capacitor is connected to another end of the first resistor and another end of the second resistor through an end, and connected to the reference potential point through another end. A power consumption of each of the first resistor and the second resistor is greater than 0.4 watt.

Abstract: A coil component including an element assembly containing a magnetic material, a coil conductor embedded in the element assembly, a connection conductor disposed in the element assembly, an extended conductor for coupling the coil conductor to the connection conductor, and an outer electrode disposed on a bottom surface of the element assembly. The coil conductor is electrically coupled to the outer electrode with the connection conductor and the extended conductor interposed therebetween. The connection conductor extends from a junction portion connected to the extended conductor in a first direction, and a width of the connection conductor is larger than a width of the coil conductor when viewed in the first direction.

Abstract: The disclosure relates to a tap changer arranged to be connected to a regulating winding of a rated regulation voltage. The tap changer comprises a diverter switch, a tap selector and a set of tap changer contacts. The tap selector and the diverter switch are encapsulated in a shielding structure arranged to shield the tap selector and the diverter switch from an external electrical field, the shielding structure being arranged to be electrically connected to a connected tap of the regulating winding. The disclosure further relates to transformer arrangement comprising at least one such tap changer.

Abstract: A coil component includes: a body including magnetic metal particles and an insulating resin; a coil portion disposed within the body and including a lead-out portion exposed to one surface of the body; a surface insulation layer disposed on the body and having an opening exposing each of at least a portion of the lead-out portion and at least a portion of the one surface of the body; and an external electrode disposed in the opening and connected to the lead-out portion, wherein a connection metal layer in which at least some of the magnetic metal particles are connected to each other is disposed in a region of the one surface of the body, exposed in the opening, and an area of a metal component including the connection metal layer in the region is 75% or more of an area of the region.

Abstract: A multilayer coil component includes a multilayer body including insulating layers laminated in a lamination direction and a coil therein and outer electrodes that are at surfaces of the multilayer body and electrically connected to the coil. The multilayer body has first and second end surfaces facing each other in a length direction, first and second main surfaces facing each other in a height direction perpendicular to the length direction, and first and second side surfaces facing each other in a width direction perpendicular to the length and height directions. The outer electrodes include a first outer electrode extending from at least a portion of the first end surface to a portion of the first main surface and a second outer electrode extending from at least a portion of the second end surface to a portion of the first main surface.

Abstract: A coil component may include a body, a coil portion including first and second lead-out portions spaced apart from each other, first and second slit portions formed at an edge portion and exposing the first and second lead-out portions, first and second external electrodes disposed to be spaced apart from each other on one surface of the body, and extending onto the first and second slit portions, respectively, to be connected to the first and second lead-out portions, a slit insulating layer covering at least portions of the first and second external electrodes in the first and second slit portions, and a surface insulating layer disposed on the slit insulating layer and extending to cover at least portions of the first or second external electrodes disposed on the one surface of the body.

Abstract: A coil component includes a body including a first surface and a second surface disposed to oppose each other in a first direction, a first coil unit disposed in the body, and including a support member and a coil pattern disposed on at least one surface of the support member, a second coil unit disposed in the body, and including a wire-wound type coil; and a plurality of external electrodes connected to the first and second coil units, wherein a core axis of the first coil unit is not parallel to a core axis of the second coil unit.

Abstract: A transformer includes a core group and a winding group. Each of a plurality of winding layers penetrates through a plurality of closed magnetic circuits formed by a plurality of cores. When viewed from the top, the cores are disposed with spacing along conductor wires through which current of the winding layers flows, and the winding layers are disposed side by side from the inside to the outside with spacing along a direction intersecting the direction of current. With this configuration, a coil device with good heat dissipation performance, compact size, high efficiency, and low costs can be provided.

Abstract: An electronic component includes an insulator portion in which insulating layers are laminated; inner conductors each having a strip shape and embedded in the insulator portion; and first and second external electrodes which face an outer surface of the insulator portion and are electrically connected to the inner conductors. Also, from 3 to 5 of the inner conductors are provided and the inner conductors being laminated with the insulating layers interposed therebetween, a total sectional area of the inner conductors is from 0.1 mm2 to 0.5 mm2, and when a thickness and a width of the inner conductor are designated as t1 and w4, respectively, a distance between the inner conductors is designated as t2, t1/w4 is designated as x, and t2/t1 is designated as y. When the number of the inner conductors is 3, (x,y) is a region surrounded by A(0.051,1.0), B(0.051,5.9), C(0.2,5.9), D(0.2,4.4), and E(0.1,1.4).

Abstract: A coil component includes a body including first to sixth surfaces, a first coil portion disposed in the body, and including a first winding portion and first and second extension portions, a second coil portion disposed in the body, and including a second winding portion, and third and fourth extension portions, first and second external electrodes disposed on the body and respectively connected to the first and second extension portions, and third and fourth external electrodes disposed on the body and respectively connected to the third and fourth extension portions. The first and third extension portions include first and third lead-out portions extending from the first surface, respectively, and the second and fourth extension portions include second and fourth lead-out portions extending from the second surface, respectively. The first and second lead-out portions are shifted from each other, and the third and fourth lead-out portions are shifted from each other.

Abstract: A coil component includes a body having first to fourth side surfaces, a coil disposed in the body, and an insulating member disposed on at least one of the first to fourth side surfaces of the body and including first to third insulating layers. The insulating member may include first and second insulating members respectively disposed on the third and fourth side surfaces.

Abstract: This application provides an isolation transformer. The isolation transformer is applicable to a power converter, the power converter further includes a first power conversion circuit and a second power conversion circuit, the isolation transformer includes a high-voltage winding, a low-voltage winding, and a solid insulation housing. The high-voltage winding has a solid insulation layer and the solid insulation housing has an opening surface, the opening surface faces the second power conversion circuit, the solid insulation housing covers the low-voltage winding and the high-voltage winding that has the solid insulation layer, a conducting layer or a semi-conducting layer is disposed on the solid insulation housing, and the conducting layer or the semi-conducting layer of the solid insulation housing is grounded.