A power conversion system and a magnetic component thereof are provided. The magnetic component includes a magnetic core assembly, two windings and an air gap. The magnetic core assembly includes two substrates, four winding pillars and an auxiliary pillar unit. The four winding pillars and the auxiliary pillar unit are located between the two substrates. A connecting line of centers of the winding pillars forms a quadrangle which has a first diagonal line and a second diagonal line. One winding is wound around two winding pillars on the first diagonal line, and magnetic fluxes on these two winding pillars have the same direction and amount. The other winding is wound around the other two winding pillars located on the second diagonal line, and magnetic fluxes on these two winding pillars have the same direction and amount. The directions of the magnetic fluxes on the two neighboring winding pillars are opposite.

Inductor device comprising a rectangular prismatic electro-insulating support (10) with three pairs of parallel outer faces (11) defining orthogonal axis (X, Y, Z), and defining eight corners; a rectangular prismatic magnetic core (20) supported by said electro-insulating support (10); and three conductor wire windings (DX, DY, DZ) wound around the three axis (X, Y, Z) surrounding the magnetic core (20); wherein the magnetic core (20) is a hollow magnetic core (20) composed by three pairs of sheets (21), each pair of sheets (21) being composed by two parallel sheets (21) facing each other perpendicular to one of said axis (X, Y, Z), and wherein each sheet (21) is made of a magnetic material, said sheet (21) being in contact and attached to the electro-insulating support (10) and being in contact with the surrounding orthogonal sheets (21).

The disclosure provides a power supply module, including: a pin; a magnetic core including: a first and second magnetic plate arranged in parallel; a first upper wiring layer; a first middle wiring layer; a first lower wiring layer, wherein at least a part of the first upper wiring layer and the first middle wiring layer are connected to form a first winding surrounding the first magnetic plate, at least a part of the first lower wiring layer and the first middle wiring layer are connected to form a second winding surrounding the second magnetic plate. The magnetic core, the first and second winding form a magnetic element electrically connected to a switch. A magnetic loop surrounds a first axis, the first winding surrounds a second axis, the second winding surrounds a third axis, the first, second and third axis are parallel to a plane where the pin is located.

Provided is a reactor having a core main body that includes an outer peripheral iron core, at least three iron cores, and coils. Between the iron cores adjacent to each other, a gap being magnetically coupled is formed. The reactor includes a fixture that fixes both end portions of the at least three iron cores together by passing through an interior of the outer peripheral iron core in a region between the outer peripheral iron core and the gap. The fixture includes plate-like members disposed on both end faces of the core main body and includes rod-like members that connect the plate-like members to each other by passing through the interior of the outer peripheral iron core. The plate-like members each include a protrusion extending axially inward of the core main body.

A low pass filter is disclosed. In an embodiment a low-pass filter includes a current-compensated choke, a reference potential and a capacitor connected in parallel with the current-compensated choke and to the reference potential, wherein a core of the current-compensated choke is configured to have a magnetic circuit, and wherein the core has an air gap.

An object of the present invention is to provide a coil component in which leakage of magnetic flux from a magnetic gap is reduced. A coil component includes: a drum-shaped core 20 having a winding core part 30 with a gap G formed therein and first and second flange parts 31 and 32; a plate-like core 40 fixed to the first and second flange parts 31 and 32; and wires W1 to W3 wound around the winding core part 30 and each having one end connected to a terminal electrode provided on the first flange part 31 and the other end connected to a terminal electrode provided on the second flange part 32. According to the present invention, the gap G formed in the winding core part 30 functions as a magnetic gap, and magnetic flux leaking from the magnetic gap is shielded by the plate-like core 40. Thus, even when the magnetic gap is provided to reduce a tolerance due to characteristic variation of a magnetic material, it is possible to solve the problem that other electronic components are affected by the leakage magnetic flux.

A coil device comprising a pair of coil members annularly assembled at two connecting end portions; each coil member comprising a magnetic core, a resin case substantially entirely surrounding the magnetic core, and a coil wound around the resin case; the resin case having connecting means and guide means in the connecting end portion of each coil member; and the connected coil members being adhered to each other in the connecting end portions.

A differential mode choke coil component includes a substantially drum-shaped core, a substantially plate-shaped core, and first and second wires. The plate-shaped core is secured to each of the first and second flanges by using an adhesive with the first major surface facing the top surface of each of the first and second flanges with a spacing. The spacing has a mean value greater than or equal to about 20 μm between the first major surface and the top surface of each of the first and second flanges.

An inductor includes a plurality of stacked core parts having aligned central openings, at least one spacer separating the core parts from one another, and a winding comprising a plurality turns wound around the stack of core parts through central openings of the core parts. The at least one spacer may include respective groups of spacers disposed between respective pairs of the core parts. In some embodiments, the at least one spacer may include a plurality of spacers disposed between first and second ones of the core parts and radially distributed in a circular pattern aligned with the first and second core parts.