Embodiments of the present disclosure include an apparatus having a band including a high thermally conductive material is disposed at least partially around an inductor.

A system in package module assembly is provided, and includes: a substrate, and a chip, an inductor, and an electrical element that are electrically connected to the substrate. The substrate includes a first surface, a second surface opposite to the first surface, and an accommodation groove. The accommodation groove passes through the second surface and the first surface. The inductor includes a magnetic core and an inductive coil. The magnetic core includes a base and a protrusion disposed on an outer surface of the base. The outer surface on which the protrusion is disposed and that is of the base abuts on the second surface. The protrusion is accommodated in the accommodation groove. The inductive coil is disposed in the protrusion. A system in package module and an electronic device are further provided.

A power supply apparatus includes a board including a major surface on which a circuit element group is mounted, and a case attached to the board. The case includes a plate-shaped portion that is located at a distance from the board and faces the major surface, and a side wall portion extending from the plate-shaped portion toward one end portion of the board. One end of a specific circuit element among the circuit element group reaches the one end portion of the board, the one end of the specific circuit element being directed to the side wall portion. The side wall portion is provided with a notch portion with a shape corresponding to an outer shape of the one end of the specific circuit element.

In one embodiment, an apparatus includes an array of transformers and common mode chokes each comprising a magnetic core and windings wound around the magnetic core at opposing locations on the magnetic core, and a retaining groove on each of the magnetic cores to maintain the windings in their opposing locations on the magnetic core. The transformers and common mode chokes are positioned in the array with the windings on each of the magnetic cores located offset to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.

A coil component having a structure that can easily realize a desired positional relationship between a cover member and a bobbin portion is provided. The coil component includes a bobbin portion, a magnetic core inserted through the bobbin portion, and a coil wound around the bobbin portion, and a cover member covering the bobbin portion by being externally fitted to the bobbin portion. In the coil component, the cover member and the bobbin portion abut each other, and at least one of the cover member and the bobbin portion elastically biases the other in a first direction parallel to a mounting surface.

A transformer includes an isolation core casing of a power converter. The transformer includes a primary winding, a secondary winding, a magnetic core, a cover, and a cup. The cover and cup are joined and sealed together to form the core casing. The primary winding is wound directly on the magnetic core, and the magnetic core is sealed within the core casing. The secondary winding is wound around the core casing such that the primary and secondary windings are electrically isolated from each other by a solid insulation barrier provided by the core casing, resulting in no increase in the creepage or the clearance path between the primary and the secondary windings, which allows the transformer to be miniaturized without negatively affecting safety and converter performance due to leakage inductance.

A battery pack charging system includes a battery pack interface configured to receive a battery pack, a charging circuit coupled to the battery pack interface to provide charging current to the battery pack interface, and a controller coupled to the charging circuit and configured to control supply of charge current to the battery interface. The battery pack charging system further includes a power supply circuit coupled to the charging circuit, a filter circuit coupled to the power supply circuit and including a nanocrystalline ferrite common mode choke, and an alternating current plug configured to connect the filter circuit to an alternating current power source.

In one embodiment, an apparatus includes a plurality of transformers and a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof. The transformers and common mode chokes are arranged in an array with the windings on each of the magnetic cores positioned generally orthogonal to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.

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.

A noise filter includes a metallic bottom plate, a case main body integrally formed with a terminal strip and attached to the bottom plate, and a capacitor including a terminal configured to be connected in the terminal strip. The noise filter further includes a capacitor housing part formed inside the terminal strip in the case main body, the capacitor housing part being configured to house the capacitor, and an inductor disposed on a top surface side of the case main body, the inductor comprising a terminal configured to be connected in the terminal strip. The capacitor housing part houses the capacitor, in a state where the capacitor is inclined with respect to the bottom plate, so that a lead part of the terminal of the capacitor is positioned on an upper end side of the capacitor in an inclination direction.