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.

An inductive filtering device includes a first toric magnetic core without an air gap formed around a central void; a first electrical conductor formed of turns that are wound around the first magnetic core without passing through the central void, wherein no electrical conductor passes through the central void.

A coil component includes a main body portion containing resin and having a hole portion, a coil provided in the main body portion, and a substantially cylindrical pipe arranged inside the hole portion. The coil includes an inner wiring embedded in the pipe and an outer wiring exposed from the main body portion. The inner wiring and the outer wiring are integrally continuous.

An LC filter arrangement includes a filter capacitor that connects the first output terminal to the second output terminal, a magnetic core, and a choke having a plurality of turns surrounding the magnetic core, and a first choke terminal and a second choke terminal. Each of the turns is formed by a separate conductor segment, at least partially surrounding the magnetic core. The LC filter arrangement is mounted on a circuit board and is electrically connected to a conductor track of the circuit board.

The invention comprises an apparatus, comprising an inductor, the inductor comprising: an inductor core; a first winding section comprising a first cast shape and a second winding section comprising the first cast shape, the first winding section mechanically joined to the second winding section to form a winding, the winding forming a wound shape about the inductor core. Optionally and preferably, a third winding section, comprising a second cast shape, mechanically joins the first winding section to the second winding section and a mechanical connector and/or an aluminum weld join the first winding section to the third winding section.

A transformer, a method for manufacturing the same and an electromagnetic device are disclosed. The transformer includes a base plate, a magnetic core, transmission wire layers and conductive parts. The base plate includes a central part defining multiple inner via holes each running through the base plate and a peripheral part defining multiple outer via holes each running through the base plate. An annular accommodating groove is defined between the central pan and the peripheral part. The magnetic core is received in the accommodating groove. The transmission wire layers may be disposed respectively on two opposite sides of the base plate. Each of the transmission wire layers includes multiple wire patterns. Multiple conductive parts are respectively disposed in the inner via holes and the outer via holes.

The present embodiments relate to an inductor device, a filter device and a steering assist device. The inductor device can comprise: a core including a magnetic material; and a wire which is wound around the core and which includes a low resistance material.

Methods and apparatus for inductor and transformer semiconductor devices using hybrid bonding technology are disclosed. An example semiconductor device includes a first standoff substrate; a second standoff substrate adjacent the first standoff substrate; and a conductive layer adjacent at least one of the first standoff substrate or the second standoff substrate.

A method of manufacturing a power semiconductor system includes providing a power module having one or more power transistor dies and attaching an inductor module to the power module such that the inductor module is electrically connected to a node of the power module. The inductor module includes a substrate with a magnetic material and windings at one or more sides of the substrate. Further methods of manufacturing power semiconductor systems and methods of manufacturing inductor modules are also described.

A simulated track inductor mount including a base configured to be fixed against a supporting surface and an inductor hub attached to and extending from the base. The inductor hub includes one or more surfaces defining a margin and being configured to engage with an inner surface of the simulated track inductor, and the one or more surfaces are fixed to a camming tab configured to flex to removably seat the simulated track inductor on the inductor hub.