Abstract: An electronic device has a primary coil 10; a secondary coil 20 disposed to face the primary coil 10; a primary-side electronic element 110 electrically connected to the primary coil 10; and a secondary-side electronic element 210 electrically connected to the secondary coil 20. The primary coil 10 has a primary-side first coil 10a that is provided on another side of the secondary coil 20, and a primary-side second coil 10b that is provided on one side of the primary-side first coil 10a. A connecting part 19 connecting the primary-side first coil 10a and the primary-side second coil 10b is provided and passes through a space of the secondary coil 20.

Abstract: A planar winding transformer includes a magnetic core set and a multilayer circuit board. The magnetic core set includes two magnetic cores and two magnetic columns. The two magnetic cores are parallel to each other. The multilayer circuit board is disposed between two magnetic cores, and two magnetic columns penetrate through the multilayer circuit board. The multilayer circuit board includes two low voltage winding layers and one high voltage winding layer. Two low voltage winding layers are connected to each other in parallel, and the high voltage winding layer is disposed between two low voltage winding layers. When the high voltage winding layer receives a polarity current, at least one of the low voltage winding layers generates a corresponding induced current. Two magnetic cores and two magnetic columns form a closed path for magnetic flux.

Abstract: A coil component includes a body having a first surface, and a first end surface and a second end surface connected to the first surface and opposing each other in a length direction; a support substrate disposed inside the body; a coil portion comprising a first coil pattern and first and second lead-out patterns, each disposed on a first surface of the support substrate; first and second slit portions, respectively defined on edge portions of the first surface of the body to expose the first and second lead-out patterns; and first and second external electrodes disposed on the first and second slit portions to be connected to the first and second lead-out patterns. At least one of the first and second lead-out patterns has a thickness greater than a thickness of each of the first coil pattern and the first dummy lead-out pattern.

Abstract: A coil component includes a support substrate, a body having a first surface and a second surface opposing each other and having the support substrate disposed therein, a coil portion disposed on at least one surface of the support substrate and having an end of an outermost turn disposed closer to the first surface of the body than the second surface of the body, and a lead-out portion having a first surface connected to the end of the outermost turn and a second surface opposing the first surface of the lead-out portion and exposed to the first surface of the body. An area of the first surface of the lead-out portion is greater than an area of the second surface of the lead-out portion.

Abstract: In an inductor component, a first magnetic layer thickness of the first magnetic layer as a measurement in the normal direction is smaller than a second magnetic layer thickness of the second magnetic layer as a measurement in the normal direction. An inductor wiring thickness of the inductor wiring as a measurement in the normal direction is from larger than 0.5 times a vertical wiring thickness of the vertical wiring as a measurement in the normal direction to smaller than 1.5 times the vertical wiring thickness.

Abstract: A circuit is provided that comprises a transformer having a first coil, which is arranged on a substrate, a second coil, which is arranged above the first coil on the substrate, and a dielectric between the first coil and the second coil. The circuit furthermore comprises a resonant circuit, which is couplable to the first coil and/or the second coil to form a resonant loop, wherein a measure of a characteristic frequency of the resonant loop and/or a measure of a power consumption of the resonant loop is able to be tapped off at an output of the resonant circuit. A corresponding method is also provided.

Abstract: The invention relates to an inductive component having a planar conductive track structure. The planar conductive track structure is surrounded along a predetermined section by a ferromagnetic core. For targeted control of the current flow inside the planar conductive track structure and, in particular, of the current density in the cross-section of the planar conductive track structure, gaps are provided in a targeted manner in the ferromagnetic core. The gaps in the ferromagnetic core are arranged in regions above and/or below the planar conductive track structure.

Abstract: An inductor component includes an inductor wiring line that extends in a plane, a magnetic layer that is formed of an organic resin containing a magnetic powder and that covers the inductor wiring line, and a nonmagnetic-body insulating layer that is formed of an organic resin containing an insulating nonmagnetic powder and that covers a principal surface of the magnetic layer. The inductor component further includes a close-contact layer that is located between the magnetic layer and the insulating layer and that contains the magnetic powder, the nonmagnetic powder, and an organic resin.

Abstract: In an inductor component, an inductor wiring is provided inside an element body. The inductor wiring includes a wiring main body and a skirt portion adjacent to the wiring main body in a height direction of the inductor wiring. A dimension in a height direction in the wiring main body is larger than a dimension in the height direction in the skirt portion. A dimension of the skirt portion in a width direction in the inductor wiring increases as a distance from the wiring main body in the height direction increases. A dimension in the width direction of a distal end of the skirt portion is larger than a dimension in the width direction of the wiring main body.

Abstract: A coil component includes a support substrate, a coil portion disposed on one surface of the support substrate and having one end and the other end connected by a plurality of turns, a body in which the support substrate and the coil portion are embedded, a lead portion extending from one end of the coil portion, and an auxiliary lead portion disposed between one end of the coil portion and the other end of the coil portion, and extending from the coil portion to be spaced apart from the lead portion, on one surface of the support substrate. The lead portion and the auxiliary lead portion are exposed to an external surface of the body to be spaced apart from each other.

Abstract: A coil component in which a crack is rarely generated around a coil conductor layer. The coil component includes an element body; and a coil provided in the element body and spirally wound along a first direction. The coil has a plurality of coil conductor layers stacked along the first direction. The element body has a vicinity area located in a vicinity of each of the coil conductor layers, and has a non-vicinity area other than the vicinity area. The vicinity area has a pore area rate less than a pore area rate in at least a part of the non-vicinity area.

Abstract: An inductor core includes a tubular magnetic material body formed of a magnetic material. The magnetic material body includes an inclined portion including an inclined surface which constitutes a peripheral surface of a truncated cone having an outer diameter that increases from one end toward the other end of the tubular magnetic material body; a straight trunk portion which is disposed coaxially with the inclined portion and includes an outer peripheral surface which constitutes a peripheral surface of a cylindrical body which extends from the other end toward the one end and a flange portion which is provided between the inclined portion and the straight trunk portion and connects the inclined portion and the straight trunk portion. An outer peripheral surface of the flange portion has an outer diameter greater than the outer diameter of the inclined portion and an outer diameter of the straight trunk portion.

Abstract: An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings of the core substrate, and through-hole conductors formed through the core substrate such that each of the through-hole conductors includes a metal film. The magnetic resin has through holes formed through the magnetic resin such that the through-hole conductors include a group of through-hole conductors formed in the through holes formed through the magnetic resin, and the magnetic resin includes an iron oxide filler in an amount of 60% by weight or more.

Abstract: A coil component includes a support substrate including a through-hole disposed therein; a body including the support substrate embedded therein, and having a core disposed in the through-hole of the support substrate; a coil portion disposed on the support substrate, embedded in the body, and having a plurality of turns with reference to the core as an axis on the support substrate; and a shielding pattern disposed between an internal wall of the support substrate, by which the through-hole is defined, and the core.

Abstract: An inductor includes a body including a coil and a magnetic portion, and having two facing principal surfaces and side surfaces adjacent to the two principal surfaces. The coil includes a winding portion formed from a conductor and a pair of extended portions extended from the winding portion. The magnetic portion includes magnetic powder and contains the coil. The winding portion includes a first meandering portion and a second meandering portion each including straight portions continuously formed so as to extend substantially circularly from an outer side to an inner side of the body when the winding portion is seen through the principal surfaces of the body from the principal surfaces. The first and second meandering portions are continuously formed on the inner side of the body. The straight portions constituting the first meandering portion and the straight portions constituting the second meandering portion are disposed apart from each other.

Abstract: A pair of iron-based E-shaped cores is arranged so that middle leg core parts of respective E-shaped cores are disposed opposite each other, and coils are respectively attached to the middle leg core parts in a winding state. A cross-sectional area of the middle leg core part orthogonal to an extending direction thereof and a cross-sectional area of an outer leg core part orthogonal to an extending direction thereof have a specified relationship.

Abstract: A coil component includes a body, a support substrate disposed within the body, a coil portion disposed on the support substrate and having first and second lead-out portions exposed to respective surfaces of the body, a noise removal portion disposed within the body and spaced apart from the coil portion, and including a pattern portion forming an open loop and having a slit between one end portion thereof and another end portion thereof spaced apart from each other. The noise removal portion also includes a third lead-out portion connected to the pattern portion and having one surface exposed to a side surface of the body. An insulating layer is disposed between the coil portion and the noise removal portion, and first to third external electrodes are disposed on respective surfaces of the body and connected to the first to third lead-out portions, respectively.