Abstract: Various embodiments include a coil device for a power converter, the device comprising: a cooling plate; and a plurality N?3 of coil windings. The cooling plate is thermally coupled to at least one end face of one of the plurality of coil windings. The coil windings are spatially offset from one another by an angle of 2?/N. The cooling plate defines a cooling channel extending at least partially around each of the plurality of coil windings.

Abstract: In a coil component, a plate-shaped core is fixed to first and second flanges of a drum-shaped core with an adhesive interposed therebetween in a state that a lower principal surface of the plate-shaped core faces top surfaces of the first and second flanges. The adhesive is made of a hardened epoxy-based resin containing dicyandiamide.

Abstract: An alternating current neutral and ground inductive electromagnetic rectification unit includes a first and second reactor connectable to a neutral and a ground of an existing circuit respectively. The first redactor includes a first pair of inductive coils, each coil disposed interior to a nonconductive tube. The second redactor includes a second pair of inductive coils, each coil also disposed interior to a nonconductive tube. The first pair of inductive coils are connected together in parallel, and also connected at opposing extremes terminating the neutral. The second pair of inductive coils are also connected in parallel, at opposing extremes of the ground. The first and second redactors are surrounded by an insulating matrix set within the housing. Once connected to the ground and neutral, the first and second redactors establish a magnetic field that redacts harmonic interference emerging on the neutral thereby increasing efficiency and power factor across the circuit.

Abstract: Provided is a reactor including: a coil including two wound portions obtained by winding a winding wire; and a magnetic core in which the wound portions are arranged. The magnetic core includes: inner leg portions arranged inside the inner peripheries of the wound portions; a central leg portion provided between the wound portions; two outer leg portions that are provided outside the outer peripheries of the wound portions and between which the inner leg portions and the central leg portion are provided; and two coupling portions between which the inner leg portions, the central leg portion, and the outer leg portions, which are arranged in parallel, are sandwiched and with which these portions are coupled.

Abstract: A power circuit common mode filter includes: a U-shaped soft magnetic core and two cylindrical soft magnetic cores, wherein recessed grooves are provided at tops of two side walls of the U-shaped soft magnetic core, and the two cylindrical soft magnetic cores are movably installed in the U-shaped soft magnetic core; two ends of each of the cylindrical soft magnetic cores are embedded in the corresponding recessed grooves, and a coil is set on each of the two cylindrical soft magnetic cores in the U-shaped soft magnetic core; the U-shaped soft magnetic core and the cylindrical soft magnetic cores are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves are provided with electrode layers, and ends of the coil is fixedly connected to the electrode layers through soldering tin.

Abstract: A surface-mount inductor includes a molded body and a metallic plate. The metallic plate has a first metallic plate portion embedded in the molded body such that an extension direction and a width direction thereof are parallel to the mounting surface; second metallic plate portions extending from both end portions, in the extension direction, of the first metallic plate portion to a bottom surface of the molded body in a direction to the mounting surface; and third metallic plate portions disposed to extend from the second metallic plate portions along the bottom surface of the molded body and be separated from side surfaces adjacent to the bottom surface of the molded body. Each of the third metallic plate portions has at least a surface exposed from the molded body. End portions of the metallic plate are embedded to be separated from the side surfaces of the molded body.

Abstract: Provided is a reactor including a coil provided with two winding portions that are obtained by winding a winding wire such that axes of the winding portions are parallel to each other, and a magnetic core including a rectangular parallelepiped inner core portion disposed in each of the winding portions, and outer core portions that are disposed outside the winding portions and are for linking the inner core portions, in which at least one of two outer corner portions out of four corner portions of each of the inner core portions includes a corner chamfering portion that has been chamfered more than an inner corner portion that is opposite the outer corner portion, the four corner portions facing an inner circumferential surface of the winding portion and the two outer corner portions being disposed on the side of each winding portion that is distant from the other winding portion.

Abstract: A component carrier which includes a stack with at least one electrically conductive layer structure and/or at least one electrically insulating layer structure, and an inductor arranged at least partially in the stack is disclosed. The inductor includes an electrically conductive coil structure, wound around a coil opening, and a magnetic core. At least part of the magnetic core at least partially fills the coil opening. At least part of at least one of the coil structure and the magnetic core is configured as an inlay embedded in the stack.

Abstract: A transformer is disclosed, including a magnetic core, a bobbin, a primary winding wound around the bobbin, at least a first secondary winding and a second secondary winding and at least one turn of coil of the first secondary winding is adjacent to at least one turn of coil of the second secondary winding, and the first secondary winding and the second secondary winding are applied in a full-wave rectifier circuit. A leakage inductance groove is provided between a primary winding groove for winding the primary winding and a secondary winding groove for winding the secondary winding for isolating the primary winding and the secondary winding.

Abstract: A surface mounting coil device includes a bobbin including a hollow tube-shaped hollow tube portion and a terminal block portion connected to the hollow tube portion and provided with a terminal installed on a mounting substrate during mounting, a wire member including a winding portion wound around the hollow tube portion, both ends of the wire member being electrically connected to the terminal, a core including a middle leg portion passing through the hollow tube portion and attached to the bobbin, and a shield member including a shielding portion positioned in an outer diameter direction of the winding portion, an engagement portion engaged so as to be relatively movable along a mounting direction with respect to the bobbin, and an installation portion connected directly or via the shielding portion with respect to the engagement portion and installed on the mounting substrate during mounting.

Abstract: A transformer has a first inductor that includes a first port. The transformer also has a second inductor magnetically coupled to the first inductor. The second inductor includes a second port. The second inductor includes a first portion configured to permit current flow in a clockwise direction and a second portion configured to permit current flow in a counter-clockwise direction. The transformer also has a third inductor magnetically coupled to the first inductor. The third inductor includes a third port. The counter-clockwise direction is opposite the clockwise direction to reduce magnetic coupling between the second inductor and the third inductor based on magnetic coupling cancellation.

Abstract: A transformer assembly and a method of producing the same are provided. The transformer assembly includes a housing, transformer oil, and a plurality of coils of electrically conductive wire. The transformer oil is disposed within the housing. The coils of electrically conductive wire are disposed in the housing and in contact with the transformer oil. A cross-linked aliphatic polyamide insulation material configured to electrically insulate the electrically conductive wire. The insulation material includes stabilizing compounds that provide thermal and chemical stability for the insulation material.

Abstract: A coil component includes a body including a magnetic metal powder; an internal insulating layer buried in the body; an internal coil portion disposed on the internal insulating layer, and having turns of which cross-sectional areas increase towards the internal insulating layer from externally of the internal insulating layer; an external insulating layer covering the internal coil portion; an external coil portion disposed on the external insulating layer, and having a greater number of turns than a number of turns of the internal coil portion; a connection via penetrating through the external insulating layer and connecting the internal coil portion and the external coil portion; and an insulating film surrounding the internal insulating layer, the internal coil portion, the external insulating layer, and the external coil portion.

Abstract: Various embodiments include, for example, a magnetic-dielectric film-based inductor that can be embedded in an electronic package for use as an integrated voltage-regulator, multiple conductive regions to provide electrical interconnects to the magnetic-dielectric-based inductor from other devices, multiple conductive pillars that are electrically coupled to and formed over at least some of the conductive regions, and a magnetic-dielectric layer formed over at least some of conductive regions and conductive pillars. The magnetic-dielectric layer is formed by a multi-layer formation technique having multiple dielectric-material layers and multiple magnetic-material layers. Each of the magnetic-material layers is interspersed with at least one of the dielectric-material layers. Other devices, apparatuses, and methods are described.

Abstract: Provided is a choke coil capable of improving a noise reduction effect by sufficiently attenuating magnetic field coupling between the choke coil and a metal part. A connector connection line includes: a first connection line led out from a connector conductor side of a coil main body of a winding wire along a y-axis direction away from the coil main body; a second connection line led out from the first connection line at a corner portion of a first pier column or a second pier column along a x-axis direction away from a connector conductor; a third connection line led out from the second connection line along a z-axis direction toward a lower yoke; and a fourth connection line led out from the third connection line along the x-axis direction toward the connector conductor.

Abstract: An alternating current neutral and ground inductive electromagnetic rectification unit includes a first and second reactor connectable to a neutral and a ground of an existing circuit respectively. The first redactor includes a first pair of inductive coils, each coil disposed interior to a nonconductive tube. The second redactor includes a second pair of inductive coils, each coil also disposed interior to a nonconductive tube. The first pair of inductive coils are connected together in parallel, and also connected at opposing extremes terminating the neutral. The second pair of inductive coils are also connected in parallel, at opposing extremes of the ground. The first and second redactors are surrounded by an insulating matrix set within the housing. Once connected to the ground and neutral, the first and second redactors establish a magnetic field that redacts harmonic interference emerging on the neutral thereby increasing efficiency and power factor across the circuit.

Abstract: A transformer device includes first conductive segments, second segments, and third conductive segments. The second segments include second conductive segments and first bridging segments. The first bridging segments are connected to the first conductive segments to form a first inductor. The third conductive segments include second bridging segments, and the third conductive segments are connected to the second conductive segments to form a second inductor. The first inductor is located on the second inductor. The first bridging segments and the first conductive segments form first interlaced portions along a first direction. The second bridging segments and the second conductive segments form second interlaced portions along a second direction. The first direction is different from the second direction.

Abstract: A coating layer is used to encapsulate winding turns of an insulated conductive wire of a coil that is encapsulated by a magnetic material containing magnetic particles so as to prevent the magnetic particles from damaging the insulated insulating layer of the insulated conductive wire of the coil when the magnetic material is pressed to form a magnetic body, thereby avoiding unwanted short circuits that are caused by the magnetic particles and damaged portions of the insulated conductive wire.

Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.

Abstract: A sealed core-coil assembly in a submersible transformer includes a coil assembly having an inner coil with inner, outer, upper, and lower surfaces, and an outer coil with inner, outer, upper, and lower surfaces, a core assembly including a core window and core column of a magnetically-permeable material, the core column and core window having inner side surfaces, and an expandable sealing member including an inner cavity that is fillable or evacuatable so that a compliant insulation material is positioned in the inner cavity to block passage of water and prevent the formation of a loop of water, which otherwise would act like an electrical short in a submerged transformer.