An inductor component includes a multilayer body including a magnetic layer; an inductor wiring disposed inside the multilayer body; and an external terminal exposed from the multilayer body. The multilayer body or the external terminal has an overlapping region disposed on the inductor wiring and a non-overlapping region not in contact with the inductor wiring, and reflection spectra of the overlapping region is different from reflection spectra of the non-overlapping region when irradiated with light having a prescribed wavelength from an outer surface side.

A signal transmission circuit for transmitting an insulation signal includes: a multilayer substrate including a plurality of layers; and a pattern transformer disposed on the multilayer substrate. The pattern transformer includes a primary winding having a wound printed pattern wiring provided in each of a first plane region and a second plane region of the multilayer substrate, and a secondary winding disposed at a different position from the primary winding in a layer direction and having a wound printed pattern wiring provided in each of the first plane region and the second plane region of the multilayer substrate. The primary winding and the secondary winding are electromagnetically coupled and configured such that a current flows clockwise through one of the wound printed pattern wiring provided in the first plane region or the wound printed pattern wiring provided in the second plane region while a current flows counterclockwise through the other.

An isolated switch-mode power supply includes at least one input, at least one output, and a power circuit coupled between the at least one input and the at least one output for converting an input voltage or current to an output voltage or current. The power circuit includes a transformer having one or more primary windings, one or more secondary windings, an electrical insulator, and a core magnetically coupling the one or more primary windings and the one or more secondary windings. Upper portions of the primary and secondary windings are covered with the electrical insulator. Other example switchmode power supplies, transformers, magnetic chokes and methods are also disclosed.

An isolated switch-mode power supply includes at least one input, at least one output, and a power circuit coupled between the at least one input and the at least one output for converting an input voltage or current to an output voltage or current. The power circuit includes a transformer having one or more primary windings, one or more secondary windings, an electrical insulator, and a core magnetically coupling the one or more primary windings and the one or more secondary windings. Upper portions of the primary and secondary windings are covered with the electrical insulator. Other example switchmode power supplies, transformers, magnetic chokes and methods are also disclosed.

A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.

A winding unit for connecting to a high-voltage grid or network includes a winding embedded in a solid insulating body and a first main connection terminal connected to a first winding end of the winding and disposed on a first support formed on the insulating body. A second main connection terminal is connected to a second winding end of the winding. The winding has partial windings and taps for adjusting the number of windings of the partial windings connected in series. Outgoing lines extending in the insulating body connect the taps to a tap connection terminal accessible from the outside. The tap connection terminals are formed on the support in order to encapsulate the higher voltage in a resin block over the entire periphery by using a shielding cage.

A multilayer coil component includes a multilayer body, and first and second outer electrodes. The multilayer body is formed by stacking plural insulating layers in a length direction, and includes a coil incorporated therein. The first and second outer electrodes are electrically connected to the coil. The coil is formed by electrically connecting plural coil conductors stacked in the length direction together with the insulating layers. The multilayer body has first and second end surfaces, first and second major surfaces, and first and second lateral surfaces. The first outer electrode has first, second, and third electrode portions. As viewed in plan in the width direction, the third electrode portion is substantially concave toward a vertex where first and second edges meet, the first edge being an edge where the first and third electrode portions meet, the second edge being an edge where the second and third electrode portions meet.

An ignition device includes a coil unit and an igniter. The coil unit includes a primary coil and a secondary coil. The primary coil includes a main primary coil and an auxiliary primary coil formed by winding a single primary conductor on a primary bobbin. The secondary coil is formed by winding a secondary conductor on a secondary bobbin. A DC voltage is applied to an intermediate section of the primary conductor between the main primary coil and the auxiliary primary coil. The igniter controls current flowing into the main primary coil or the auxiliary primary coil. The primary bobbin includes a bobbin body and a hooking part protruding from the bobbin body. The main primary coil and the auxiliary primary coil are wound on an outer peripheral surface of the bobbin body to the same direction. A part of the intermediate section is hooked on the hooking part.

A cold plate and a method of manufacturing a cold plate involve a first side with a first surface, and a second side, opposite the first side, with a second surface opposite the first surface. The cold plate includes a flow channel formed between the first side and the second side, and a cavity integrally machined into the first surface of the first side. The cavity seats an inductor and is defined by an outer wall and a base with thicker sections and thinner sections such that even the thicker sections of the base are thinner than a thickness of the first surface.

A high temperature superconducting, HTS, field coil. The HTS field coil comprises a plurality of turns comprising HTS material and metallic stabilizer; and a partially insulating layer separating the turns, such that current can be shared between turns via the partially insulating layer. The partially insulating layer comprises an insulating region, and a plurality of electrically conductive paths through the insulating region, wherein current can be shared between the turns via the electrically conductive paths. Each electrically conductive path comprises an HTS bridge comprising HTS material, wherein the HTS bridge is in series with normally conducting material of the electrically conductive path.