A DC-DC converter assembly includes a board having a first side and a second side opposite the first side, a power stage die of a DC-DC converter attached to the first side of the board, and an output inductor electrically connected to an output of the power stage die and disposed over the power stage die on the first side of the board. The output inductor includes a magnetic core and an electrical conductor having first and second terminals attached to the first side of the board. The output inductor accommodates the power stage die under the magnetic core so that the power stage die is interposed between the magnetic core and the board. A corresponding method of manufacturing the DC-DC converter assembly and method of manufacturing the output inductor are also disclosed.

Disclosed herein is a laminated core for a motor manufactured by laminating sheets of a plurality of cores. The laminated core is formed by connection of a plurality of split cores, yoke parts of the split cores which are adjacent to each other get in contact with each other so as to form a contact part, and a connection caulking part is formed at the contact part.

There is provided a magnetic core having both high strength and high resistivity, a coil component produced with such a magnetic core, and a magnetic core manufacturing method capable of easily manufacturing a magnetic core with high strength and high resistivity. The present invention provides a method for manufacturing a magnetic core having a structure including dispersed Fe-based soft magnetic alloy particles, the method including: a first step including mixing a first Fe-based soft magnetic alloy powder containing Al and Cr, a second Fe-based soft magnetic alloy powder containing Cr and Si, and a binder; a second step including pressing the mixture obtained after the first step; and a third step including heat-treating the compact obtained after the second step, wherein the heat treatment forms an oxide layer on the surface of Fe-based soft magnetic alloy particles and bonds the Fe-based soft magnetic alloy particles together through the oxide layer.

A stator core is formed from a continuous strip of wound sheet stock material, in which the sheet stock material is converted from the sheet stock to a formed material including winding slot cutouts. This strip of formed material is then wound into the stator core, with the winding slot cutouts in the formed material maintained at a substantially constant width throughout most of the radial extent of the resulting winding slots in the finished article. However, one or more of the radially innermost and radially outermost layers may define winding slot cutouts that are wider than the other winding slot cutouts. Where several radial layers are altered in this way, the cutout widths are progressively expanded such that the resulting winding slot has terminal ends with edges that are effectively radiused or rounded, thereby protecting windings near the edge of such slots.

A method of forming a radially anisotropic toroidal magnetic core includes providing apparatus having a first magnet for providing a radial magnetic field extending across a cavity from an axial spindle to a surrounding second magnetic element, placing a substrate in the cavity, the substrate having a hole fitting around the head of the spindle; and sputter-depositing a film of ferromagnetic material onto the substrate. In an embodiment, the spindle is magnetically coupled to a first pole of the first magnet, the second magnetic element is coupled to a second pole of the first magnet, and a thermally conductive, nonmagnetic, insert separates the spindle and the second magnetic element.

A common mode filter and a manufacturing method thereof are disclosed. A common mode filter in accordance with an aspect of the present invention includes: a substrate: a filter layer disposed on the substrate and configured to remove a signal noise; an electrode column formed to be bent along a perimetric portion of the filter layer and electrically connected with the filter layer; an electrode pad formed to have a larger longitudinal cross-sectional area than the electrode column and integrally coupled on the electrode column; and a magnetic layer formed on a layer on which the electrode column and the electrode pad are formed.

A magnetic device comprises a lead frame, a first core body and a coil. The lead frame has a first portion and a second portion spaced apart from the first portion. A first core body is disposed on the lead frame, wherein the first core body comprises a first through opening and a second through opening. A coil is disposed on the first core body, wherein the coil has a first terminal and a second terminal, wherein the first portion is electrically connected with the first terminal via the first through opening, and the second portion is electrically connected with the second terminal via the second through opening, respectively.

A method for making a magnetic assembly comprises the following steps: twisting a first to eighth magnetic wires to form a bundle of wires having a first end and an opposite second end; providing a magnetic core; winding the bundle of magnetic wires around the magnetic core; sorting the first end and the second end of the bundle of wires to form individual first ends and individual second ends of the first to eighth wires; picking out the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire to form a center tap of a primary coil of a transformer; and picking out the second ends of the fifth wire and the sixth wire, and the first ends of the seventh wire and the eighth wire to form a center tap of a secondary coil of the transformer.

In a solenoid valve having a magnetic drive including a housing which is at least partly formed from an injection molding compound, the magnetic drive includes a magnet coil having a winding, a magnet yoke, and a movably mounted magnet armature which is arranged outside the magnet coil. The housing has a first section which encloses the magnet coil having the winding and the magnet yoke, and the housing has a second section which encloses at least most of the movably mounted magnet armature. Further proposed are a battery having a plurality of solenoid valves, a method of manufacturing a solenoid valve, and a mold.

A gapped core leg for a shunt reactor, comprising magnetic core elements separated by spacers cast directly between the core elements. Accordingly, a rigid core leg construction is achieved.