Abstract: An ignition coil includes a low voltage terminal for connection with a battery and a high voltage terminal for connection with a spark plug. An assembly of windings interconnects the terminals. The ignition coil further includes a case containing the windings and the terminals. The case is configured for use with a cylinder head cover having a cylindrical bore with a key projecting radially inward of the bore. A cylindrical portion of the case has a central axis, a rotational locator surface, and an insertion guide groove configured to receive the key in the bore. A helical section of the groove is configured to receive the key when the case is in a first rotational orientation. The helical section is further configured for the rotational locator surface to move into abutment with the key upon rotation of the case from the first rotational orientation to a second rotational orientation.

Abstract: A modular insulation fluid handling system for protecting insulation fluid of an inductive power device having an expansion vessel and for handling volume variations of the insulation fluid, the modular insulation fluid handling system includes a first protective housing including a resilient reservoir filled with an inert gas, a connector, and an adapter sealably connected to the inside of the resilient reservoir, an interface including a ventilation duct terminal and a reservoir terminal being sealably connected to the adapter, the connector is arranged between the adapter and the interface and configured to be connected to a connector of a second protective housing, and a vessel ventilation duct configured to be sealably connected to the expansion vessel and the ventilation duct terminal. The inside of the resilient reservoir is configured to be in hermetically sealed fluid communication with the expansion vessel via the adapter, the interface and the vessel ventilation duct.

Abstract: A circuit module equipped with a primary coil of a step-down transformer formed by primary coils of a plurality of transformer elements connected in series with each other and a secondary coil formed by secondary coils of the transformer elements connected in series with each other, includes a printed substrate on which the transformer elements are mounted in a lengthwise direction, a connection terminal coupled to a first end of the primary coil of the step-down transformer and connection terminals coupled to the secondary coil of the step-down transformer, the connection terminals are positioned such that the transformer elements are interposed therebetween. As a result, provided are a transformer module that reduces the effect of a high-voltage portion on a low-voltage portion by securing a distance between the high-voltage portion and the low-voltage portion, and a power reception device and a power transmission device equipped with the transformer module.

Abstract: A coil includes a plurality of internal conductors that are electrically connected to each other and are disposed in an element body having magnetism. The plurality of internal conductors includes conductor portions that are separated from each other in a first direction and overlap each other when viewed from the first direction. At least one low-permeability layer is disposed along the conductor portions between the internal conductors adjacent to each other in the first direction. Permeability of the low-permeability layer is lower than permeability of the element body. The low-permeability layer includes a first portion contacting the internal conductors and at least one second portion separated from the internal conductors in the first direction, between the internal conductors adjacent to each other. The element body includes first element body regions that are interposed between the second portion and the internal conductors.

Abstract: A core for an electrical induction device has a plurality of lamination stacks which are each formed by laminated sheets. The lamination stacks lie on top of each other parallel to the layer plane of the laminated sheets. At least one of the lamination stacks is segmented and has at least two partial lamination stacks, the two partial lamination stacks respectively lying opposite each other with their stack end faces standing transverse, in particular perpendicular, to the layer plane of the laminated sheets. The stack end faces of the two partial lamination stacks have a spacing between each other through which a gap is formed extending between the two partial lamination stacks perpendicular to the layer plane. The gap forms a cooling channel or at least a section of a cooling channel, the channel longitudinal extension thereof extending transversely, in particular, perpendicular to the layer plane of the laminated sheets.

Abstract: The present invention relates to a power module and a POL power module. The power module comprises an inductor and a main board; the inductor is disposed on the main board and includes an upper magnetic core, a PCB winding board, pins and a lower magnetic core; the PCB winding board is disposed between the upper magnetic core and the lower magnetic core; first ends of the pins are connected to the PCB winding board; and a second end, opposite to the first end, of at least one pin is extended and exceeds the bottom surface of the lower magnetic core, and is connected to the main board, so that a receiving space is formed between the bottom surface of the lower magnetic core and an upper surface of the main board. The power module of the application can provide at least two low-power independent outputs and can also provide high-power outputs in in-phase or interleaved parallel connection.

Abstract: A soft magnetic core is provided, in which permeabilities that occur at least two different locations of the core are different. A method for producing a soft magnetic core that has different permeabilities at at least two different locations is also provided.

Abstract: A coil former, also referred to herein as a bobbin, is provided for use in conduction-cooled magnetic components that contain an air gap. The diameter of the disclosed bobbin is increased and ribs/splines or tabs are created to keep the winding centered about the core center post while allowing thermally conductive silicone-based or equivalent encapsulant to fill the voids between the coil former and the core, the coil former and the windings and/or both depending on the placement of the locating tabs. The disclosed bobbin may be fabricated from traditional injection molding resins or from high-thermal conductivity resins. As a result of the disclosed bobbin designs, the achievable power density is increased while maintaining acceptable temperatures.

Abstract: Near field communication device has a configuration in which at least a part of coil of coil element is covered with cover at a portion opposite to substrate and a part of cover is fixed to substrate directly or indirectly. Therefore, even when near field communication device is mounted to one of various electronic apparatuses in a vicinity of display unit outer peripheral frame made of metal, a large change in impedance or a large reduction in magnetic field strength can be prevented. As a result, a reduction in receiving sensitivity can be suppressed.

Abstract: A bond-wire transformer for an RF device is described. The primary and secondary circuits of the bond-wire transformer are formed using loops formed with a pair of normal profile and low profile bond-wires. This results in improved efficiency and higher power operation.

Abstract: An integrated-type transformer according to an embodiment includes a linear-type magnetic member; a power factor correction circuit disposed to a left of the linear-type magnetic member and including an inductor; and a transformer disposed to a right of the linear-type magnetic member and including a primary coil and a secondary coil.

Abstract: There is provided a chip electronic component including: a magnetic body having an internal coil part embedded therein, wherein the magnetic body includes: a central portion provided inside of the internal coil part and including a core; and an outer peripheral portion provided outside of the central portion, the central portion and the outer peripheral portion having different magnetic permeabilities.

Abstract: A coil component includes a body portion, a coil portion, and an electrode portion. The body portion includes a magnetic material, the coil portion is disposed in the body portion, and the electrode portion is disposed on the body portion and electrically connected to the coil portion. The coil portion includes a first coil layer in which a plurality of conductors having a planar spiral shape are stacked, a second coil layer in which a plurality of conductors having a planar spiral shape are stacked, and a first bump disposed between the first and second coil layers to electrically connect the first and second coil layers to each other. The first coil layer and the second coil layer are electrically connected to each other through the first bump to form a single coil having coil turns adjacent to each other in horizontal and vertical directions.

Abstract: A device for limiting a fault current for a generator, in particular of a wind turbine is provided. A first frame is made of a ferromagnetic material, wherein the first frame comprises a first frame section and a further first frame section, wherein a first gap is formed between the first frame section and the further first frame section. A first coil is wound around the first frame section, wherein the first coil is connectable to a first stator winding of a stator of the generator. A further first coil is wound around the further first frame section, wherein the further first coil is connectable to an electronic device. A first permanent magnet element is arranged inside the first gap. The first frame section and the further first frame section are formed with respect to each other such that an electromagnetic interaction between the first coil and the first permanent magnet element and the further first coil and the first permanent magnet element is provided.

Abstract: A coil structure for generating a uniform magnetic field and a coil apparatus having the same are disclosed. The coil apparatus has a plurality of coil units, and each of the coil units includes a sub-coil and a plurality of wire sections. The sub-coil has an eccentric-coil portion and two circuit connecting portions. The two circuit connecting portions are respectively connected to two segments of the eccentric-coil portion. The wire sections are arranged in parallel at intervals, are opposite the sub-coil, overlap the sub-coil, and are relatively inclined to the sub-coil. The circuit connecting portions of the segments of the coil units are connected to each other to form an auxiliary coil. A center position of the sub-coils is corresponding to a center position of the auxiliary coil so that a current flows through the sub-coils and the auxiliary coil to generate a uniform magnetic field.

Abstract: A DC-DC converter assembly a power stage die of a DC-DC converter attached to a board, an output inductor attached to the board and electrically connected to an output of the power stage die, the output inductor accommodating the power stage die under the output inductor, a plurality of input capacitors attached to the board and electrically connected to input terminals of the power stage die, an output capacitor attached to the board and electrically connected to the output inductor, and a plurality of decoupling capacitors attached to the board and electrically connected to power terminals of the power stage die. A total footprint of the power stage die, the output inductor, the input capacitors, the output capacitor and the decoupling capacitors is at least a third of the combined surface area of the power stage die, the output inductor, the input capacitors, the output capacitor and the decoupling capacitors.

Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer has a thickness of 4 to 19 ?m, and includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.

Abstract: An integrated inductor can be tunable via a control current which alters the magnetic flux density in a permeable magnetic material. The resulting inductor can be adjusted in-circuit, and may be suitable for applications such as dc-dc converters, RF circuits, or filters requiring operation at high frequencies and across wide bandwidths.

Abstract: A multiple inductive component (100) comprises:—a cylindrical drum core component (120) with at least two axially spaced circumferential grooves (131, 132) in its cylindrical outer surface (121), a separation disc portion (111) between said two circumferential grooves and two outer disc portions (112, 113) at the sides of the said two circumferential grooves, respectively, directed away from the separation disc portion;—at least one first winding (141) arranged in a first one (131) of said grooves;—at least one second winding (142) arranged in a second one (132) of said grooves;—a cylindrical shell core component (150) arranged coaxially around the cylindrical drum core component;—two outer air gaps (162, 163) between the cylindrical shell core component and said two outer disc portions, respectively. The separation disc portion is magnetically short circuited with the cylindrical shell core component.

Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.