Abstract: An integrated inductor comprises a first winding (C1) and a second winding (C2); a first internal magnetic core in the first winding (C1) and a second internal magnetic core in the second winding (C2); and at least one external magnetic core (M) outside the first winding (C1) and the second winding (C2), used for being connected to end portions of the first and second internal magnetic cores to form a magnetic path, the external magnetic core (M) being formed by multiple sub-magnetic cores joint with each other; the magnetic conductivity of at least one sub-magnetic core of the multiple sub-magnetic cores is greater than the magnetic conductivity of other sub-magnetic cores, and the at least one sub-magnetic core at least covers a part of end faces of the first internal magnetic core and the second internal magnetic core. The integrated inductor can alleviate the phenomenon of flux leakage, and can reduce costs of the magnetic cores.

Abstract: A coil arrangement is provided for generating a rotating electromagnetic field, comprising at least three coils, each having at least one associated coil winding. The coil arrangement further comprises a ferromagnetic coil yoke which establishes a magnetic coupling between the at least three coils.

Abstract: A common mode filter includes: an insulator; a coil pattern embedded within in the insulator; and a magnetic layer including a layer of material filled with different-size magnetic particles, wherein a surface of the magnetic layer is adhered to the insulator.

Abstract: An adjustable inductor and a method of assembling such an inductor. The inductor may include a toroidal core defining a pair of gaps to provide a removable core section, the core also including a rigid core section; compressible gap material positioned in the gaps; windings wound on the rigid core section; and force-applying structure operable to apply a force to the removable core section to adjust the gaps and thereby the inductance.

Abstract: An inductive device is disclosed, including a first wire coupled to a first terminal and to a second terminal, a non-conductive material surrounding the first wire, and a magnetic film. The non-conductive material spans the region from the first terminal to the second terminal. The magnetic film surrounds at least a portion of the non-conductive material between the first terminal and the second terminal. The first wire has a first amount of inductance.

Abstract: A reactor includes a core, a resin cover provided around the core, and a coil disposed around the core at the external side of the resin cover. The coil includes a conductive wire having a self-fusing layer formed on the surface of the conductive wire, and the adjoining conductive wire portions are bonded together by the self-fusing layer. The resin cover includes a bonding portion provided at a part of the resin cover and facing the end portion of the coil, and the end portion of the coil are bonded with the resin cover by an adhesive at the bonding portion.

Abstract: In manufacturing an embedded magnetic component, a cavity is formed in an insulating substrate with one or more channels connecting the cavity to an exterior of the component. The channels include one or more obstruction sections that define a sealed base area of the cavity into which adhesive is dispensed to secure the magnetic core in the cavity. The obstruction sections prevent egress of the adhesive before it hardens. The cavity and the magnetic core are then covered with a first insulating layer. Through holes are formed through the first insulating layer and the insulating substrate, and plated up to form conductive vias. Metallic traces are added to the exterior surfaces of the first insulating layer and the insulating substrate to form upper and lower winding layers. The metallic traces and the conductive vias form the windings for an embedded magnetic component, such as a transformer or an inductor.

Abstract: A choke coil module of a high power density DC-AC power inverter includes a bottom plate and a top plate. Two upright posts are secured between the bottom plate and the top plate. The upright posts are sleeved with choke coils, respectively. The choke coils and heat radiating holes of the bottom plate and the top plate are communicated with one another to form an air guide passage. When the power converter is actuated, the choke coils generate heat. Through a fan unit, the outside air is guided into a casing via air inlets of the casing, and the heat generated by the choke coils is expelled to the outside via the air guide passage and air outlets of the casing. The choke coil module mounted in the high power density casing is able to achieve an excellent heat radiation effect.

Abstract: A modular toroidal transformer core cap system, including a plurality of cap segments, wherein each respective cap segment further includes first and second spaced elongated wall members, first and second connector members connected to the respective first and second elongated wall members, and a generally flat panel member connected to and extending between the first and second elongated wall members. The first and second wall members are disposed at a predetermined angle relative one another and the first and second elongated wall members and the panel member are electrically nonconducting. An integral number of cap segments may be joined together to define an annular core cap.

Abstract: An integrated circuit transformer structure includes at least two conductor groups stacked in parallel in different layers. A first spiral track is formed in the at least two conductor groups, the first spiral track included first turns of a first radius within each of the at least two conductor groups, and second turns of a second radius within each of the at least two conductor groups, the first and second turns being electrically connected. A second spiral track is formed in the at least two conductor groups, the second spiral track including third turns of a third radius within each of the at least two conductor groups and disposed in a same plane between the first and second turns in each of the at least two conductor groups.

Abstract: A multilayer electronic component includes a multilayer body having a structure in which a plurality of insulation layers are stacked, and having first and second end surfaces opposing each other and first and second side surfaces connecting the first and second end surfaces to each other. An internal coil disposed in the multilayer body includes a plurality of internal coil patterns exposed to the first and second side surfaces of the multilayer body and vias penetrating through the insulation layers connecting the plurality of internal coil patterns to each other. First and second side parts cover at least portions of the first and second side surfaces of the multilayer body, respectively.

Abstract: A transformer includes a core having a central arm and first and second outer arms on opposite sides of the of the central arm, a first input winding surrounding the central arm and a first output winding surrounding the central arm. The transformer also includes a first input winding shield surrounding the first input winding, the first input winding shield having only flat or arcuate edges in cross section and a first output winding shield surrounding the first output winding, the first output winding shield having only flat or arcuate edges in cross section.

Abstract: A laminated coil component includes an element assembly formed by laminating a plurality of insulation layers and a coil unit formed inside the element assembly by a plurality of coil conductors. The element assembly includes a coil unit arrangement layer which has the coil unit arranged therein, and at least a pair of shape retention layers which is provided to have the coil unit arrangement layer interposed therebetween to retain a shape of the coil unit arrangement layer. The shape retention layer is made from glass-ceramic containing SrO, and a softening point of the coil unit arrangement layer is lower than a softening point or a melting point of the shape retention layer.

Abstract: A linear electromagnetic device, such as an inductor, transformer or the similar device, may include a core in which a magnetic flux is generable. The device may also include an opening through the core. The device may additionally include a primary conductor received in the opening and extending through the core. The primary conductor may include a substantially square or rectangular cross-section. An electrical current flowing through the primary conductor generates a magnetic field about the primary conductor, wherein substantially the entire magnetic field is absorbed by the core to generate the magnetic flux in the core.

Abstract: According to some embodiments, subsea fault tolerant transformer includes an arrangement of two tanks mounted one above the other. A lower tank houses the transformer windings and core and is below and abutting an upper tank. Both tanks are filled with respective dielectric oil. The electrical terminals for the primary and secondary power connections are on the second/instrument tank and the conductors pass through the instrument tank and then through the shared wall to the transformer tank. The design allows for enhanced cooling of the transformer through a single wall portion of the lower tank as well as fault tolerance associated with double barriers.

Abstract: A coil component includes a core including a winding portion and a flange portion extending from a first end of the winding portion, a coil wound around the winding portion, a lead formed at the flange portion, and a cover coupled to the flange portion and covering at least a portion of the coil.

Abstract: A switching power converter includes a first and second switching device, an air core coupled inductor, and a controller. The air core coupled inductor includes a first winding electrically coupled to the first switching device and a second winding electrically coupled to the second switching device. The first and second windings are magnetically coupled. The controller is operable to cause the first and second switching devices to repeatedly switch between their conductive and non-conductive states at a frequency of at least 100 kilohertz to cause current through the first and second windings to repeatedly cycle, thereby providing power to an output port. The switching power converter may have a topology including, but not limited to, a buck converter topology, a boost converter topology, and a buck-boost converter topology.

Abstract: An inductor may include: a body, and a first and a second external electrode formed on end surfaces of the body. The body may include a coil support layer, a conductive coil formed on at least one surface of the coil support layer, a lamination part formed in a gap of the conductive coil and on an upper surface thereof, an insulating coating part formed to enclose an overall surface of the conductive coil on which the lamination part is formed, and upper and lower cover layers covering the overall surface of the conductive coil on which the insulating coating part is formed.

Abstract: Among other things, a distribution transformer and a technique for regulating voltage are provided for herein. The distribution transformer comprises at least three windings and at least two ferromagnetic cores. The distribution transformer may also comprise a power electronic AC-AC converter operable to maintain the input voltage and current of the distribution transformer substantially in phase and/or to reduce fluctuation in the output voltage of the distribution transformer in the event of an increase or decrease in the input voltage, for example.

Abstract: Disclosed herein is a coil component that includes a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core; a wire wound around the winding core; terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire; and a magnetic top plate made of magnetic-powder containing resin in which magnetic powder is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions. The magnetic top plate has a lower surface facing the first and second flange portions and an upper surface located opposite to the lower surface. The density of the binder resin is higher in a surface layer part on a side of the upper surface than in a surface layer part on a side of the lower surface.