Class / Patent application number | Description | Number of patent applications / Date published |
336178000 | WITH CLOSED CORE INTERRUPTED BY AN AIR GAP | 38 |
20090096565 | Parallel gapped ferrite core - A transformer or inductor includes a core, a printed circuit board, a frame and a gapping plate. The core is positioned in a first plane A winding is located on top of a portion of the core. The frame is positioned in a second plane and the frame is located on top of the winding and has a hole. The gapping plate resides in the second plane and is disposed within the hole of the frame. The gapping plate has a smaller area than the hole of the frame and this creates a gap between the gapping plate and the frame. The magnetic flux generated during operation of the transformer or inductor radiates in a direction perpendicular to the first plane and the second plane. | 04-16-2009 |
20090212895 | Swinging Choke For Light Applications - Swinging choke with a winding body, a core, which is integrated into the winding body such that the core forms at least one air gap in the winding body, at least one main winding which is wound onto the winding body, wherein the main winding is designed for a high voltage, and at least one ancillary winding the number of turns of which is designed such that a low voltage can be tapped and which is arranged above or close to the air gap. | 08-27-2009 |
20090284337 | Choke transformer used in liquid crystal display backlight driver - Disclosed is a choke transformer used in liquid crystal display (LCD) backlight driver, comprising a winding base on which a plurality of spacers are formed and having a hollow structure, a core received within the winding base and a plurality of windings wound between two neighboring ones of the plurality of spacers as a winding set, each winding set having windings of different characteristics; and is characterized in that an air gap is provided between the winding base having the hollow structure and the core. With such devised choke transformer, a higher endurable voltage is achieved. Further, the characteristics of prolonged lifetime, reduced cost, smaller dimension and saved installation space may be achieved with the choke transformer. | 11-19-2009 |
20100039202 | MAGNETIC ELEMENT - A magnetic element includes a conducting winding structure, first and second magnetic parts, and first and second side posts. The first and second magnetic parts have first and second central posts that are aligned with each other. The first side post is disposed on an edge of the first or second magnetic part. The second side post is disposed on another edge of the first or second magnetic part where no side post is disposed or the first side post is not aligned with. The conducting winding structure is sandwiched between the first and second magnetic parts. The first and second side posts are aligned with corresponding edges wherein no side post is disposed. Consequently, the overall height of the first and second central post is less than the height of the first or second side post and an air gap is defined between the first and second central post. | 02-18-2010 |
20100164668 | Reactor Core - A reactor core is formed in an essentially triangular shape. Such a reactor core shape can advantageously be obtained by winding a strip of electromagnetic material, such as a strip of transformer plate, a number of windings into a triangular shape. | 07-01-2010 |
20100171580 | REACTOR CORE AND REACTOR - Provided is an annular reactor core formed of a U-shaped core and core legs. Core joints including end portions and two protrusions form the U-shaped core. Between the protrusions of these core joints, a plurality of (two) core legs | 07-08-2010 |
20100328007 | INDUCTOR AND METHOD FOR PRODUCTION OF AN INDUCTOR CORE UNIT FOR AN INDUCTOR - An inductor may include an electrical conductor for generating a magnetic field; and at least one inductor core unit which is arranged in the region of the conductor and includes an inductor core composed of a magnetizable material and also at least one air gap, a filling material being introduced at least into part of the air gap for the purpose of mechanical stabilization, wherein the filling material is configured in such a way that it has a coefficient of thermal expansion, the value of which lies in a range of ±70% of the value of the coefficient of thermal expansion of the magnetizable material of which the inductor core is composed. | 12-30-2010 |
20110043314 | Creative transformer - This invention disproves the conservation of energy in a core transformer as unavoidable. It shows that the design was a cause. Scientists, when they had a pair of equal forces (magnetomotive forces), allowed a pair of equal energies. This is changed by two innovations. One is called an “air-gap magnetic core”; it does not transfer all the force in the energy of a coil, to the core. And the other is a complete and radical change in circuitry. | 02-24-2011 |
20110199174 | INDUCTOR CORE SHAPING NEAR AN AIR GAP - An inductor core device, and method of forming same, that has at least a first inductor core section and typically has a second inductor core section, both formed of stacked layers of conductive material. The second core section may be positioned relative to the first core section to define an air gap therebetween and the sections are preferably profiled between their respective end faces and broad surfaces to reduce the eddy current losses induced in the core section(s) near the air gap. Various embodiments, “profile” shaping configurations, and core section arrangements are disclosed. | 08-18-2011 |
20110227687 | INDUCTION DEVICE - An induction device to be used in association with a high voltage electric transmission systems having at least one winding, at least one core frame, and at least one magnetic core leg arranged in the core frame. The core frame includes a plurality of core gaps including a plurality of spacers, and a plurality of core segments of a magnetic material. The core segments are being separated by at least one of the core gaps, and the winding is causing electromagnetic attraction forces to act in the core gaps. The induction device further includes at least one piezoelectric element arranged in one of the core gaps, and a control unit connected to the piezoelectric element. The control unit is arranged to provide an electrical signal for inducing vibrations of the piezoelectric element which counteract the electromagnetic attraction forces acting in the core gaps. | 09-22-2011 |
20120299680 | MULTI GAP INDUCTOR CORE, MULTI GAP INDUCTOR, TRANSFORMER AND CORRESPONDING MANUFACTURING METHOD AND WINDING - The invention provides a multi gap inductor core, a multi gap inductor, transformer, and a corresponding manufacturing method and winding. The multi gap inductor core ( | 11-29-2012 |
20130162384 | DEVICE AND MANUFACTURING METHOD FOR A DIRECT CURRENT FILTER INDUCTOR - The device and manufacturing method for a Direct Current (DC) filter inductor are disclosed. The device comprises a magnetic core, at least one first winding and at least one second winding. The magnetic core has at least one air gap. The first winding and the second winding are connected to each other in parallel that having a mutual inductance, and are wrapped around the magnetic core respectively. A difference between a first inductance of the first winding and the mutual inductance is smaller than a difference between a second inductance of the second winding and the mutual inductance. A Direct Current (DC) resistance of the first winding is larger than a DC resistance of the second winding. The first winding is closer to the air gap compared to the second winding. | 06-27-2013 |
20130169397 | POWER SUPPLY APPARATUS FOR A CAPACITIVE LOAD - The invention provides a power supply apparatus for supplying electric power to a capacitive load. The apparatus has a transformer, a positive half-period driver and a negative half-period driver supplying positive and negative half-periods of voltage to the first coil. The second coil forms an electric resonance circuit and supplies electric voltage to the load. Zero crossings of the voltage supplied to the first coil are determined from a third coil on the transformer, and alternation between positive and negative half-periods of voltage supplied to the first coil is done at the zero crossings of the voltage supplied to the first coil. | 07-04-2013 |
20140043127 | INTEGRATED INDUCTOR AND A METHOD FOR REDUCTION OF LOSSES IN AN INTEGRATED INDUCTOR - An integrated inductor comprising a multi-winding inductor having a transformer winding (L | 02-13-2014 |
20140266534 | TRANSFORMER - There is provided a transformer including an E shaped and two I shaped magnetic cores and a first, second and third windings, wherein: one I shaped magnetic core is located between one side and a middle legs of the E shaped magnetic core, another is located between another side and the middle legs; there is an air gap on each of the two I shaped magnetic cores or two side or bottom legs of the E shaped magnetic core, the first winding is wound on a part of the magnetic cores where the air gap exists; the second and third windings are wound on the middle leg; and the first winding is connected in parallel with the second winding to constitute a primary winding; the third winding is a secondary winding. With the transformer provided by the invention, transformer winding loss can be reduced, and transformer efficiency can be improved. | 09-18-2014 |
20140266535 | LOW LOSS INDUCTOR WITH OFFSET GAP AND WINDINGS - A low loss power inductor and method for making same. A magnetic core is constructed of one or more E-shaped and l-shaped portions. Each E-shaped portion includes top, middle and bottom bars, and an open edge adjacent an l-shaped portion with a gap between the middle bar and the l-shaped portion. Conductive and insulated layers having mutually adjacent surfaces are coiled about the one or more middle bars. The width of the conductive layer is no greater than the length of the middle bars and is less than or equal to the width of the insulated layer. | 09-18-2014 |
20140266536 | FERRITE CORE WINDING STRUCTURE WITH HIGH FREQUENCY RESPONSE - The present invention provides a ferrite core winding structure with high frequency response, which comprises: a ferrite core formed with at least a penetrated hole, a first enamel wire formed with a first end and a second end, and a second enamel wire formed with a first end and a second end; wherein, the first end of the first enamel wire and the first end of the second enamel wire are mutually twisted for at least one turn and then jointly passed the penetrated hole, the second end of the first enamel wire and the second end of the second enamel wire are jointly encircled the ferrite core then passed the penetrated hole, the second end of the first enamel wire is respectively encircled the ferrite core for at least one turn at two sides of the winding formed by the first end of the first enamel wire, then the second end of the first enamel wire and the first end of the second enamel wire are twisted for plural turns at the outer side of the ferrite core thereby forming a common end. | 09-18-2014 |
20140266537 | ELECTRONIC COMPONENT FOR GUIDING A MAGNETIC FIELD - An electronic component for guiding a magnetic field comprises a core ( | 09-18-2014 |
20140292460 | INDUCTOR AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to an inductor. An inductor in accordance with an embodiment of the present invention includes: a ferrite-organic body; an internal electrode laminated on the ferrite-organic body along a thickness direction of the ferrite-organic body to have a multilayer structure; a metal-organic body constituting a device body with the ferrite-organic body by covering the ferrite-organic body; and an external electrode covering the device body to be electrically connected to the internal electrode. | 10-02-2014 |
20140292461 | COUPLED INDUCTOR - A coupled inductor comprises an annular core | 10-02-2014 |
20140300440 | INDUCTOR GAP SPACER - An inductor comprises a ferromagnetic or ferrimagnetic core with a reluctance gap, a plurality of conductive windings disposed about the ferromagnetic or ferrimagnetic core, and a spacer. The spacer separates the conductive windings from the ferromagnetic or ferrimagnetic core in the immediate vicinity of the reluctance gap, such that the conductive windings are substantially unaffected by fringing flux from the reluctance gap. | 10-09-2014 |
20140313002 | NONLINEAR INDUCTOR - A non-linear inductor is disclosed herein. The non-linear inductor includes a first magnetic core, a second magnetic core, a third magnetic core, a fourth magnetic core, a fifth magnetic core and a coil unit. The first and the second magnetic core are disposed in parallel. The third magnetic core, the fourth magnetic core and the fifth magnetic core are all vertically disposed between the first and the second magnetic core. The fourth magnetic core is vertically disposed between the first and the second magnetic core. The fourth and the fifth magnetic core are disposed at both sides of the third magnetic core in parallel. The coil unit winds around the third magnetic core. A magnetic resistance of the fourth magnetic core passed through by an inductive magnetic flux is different from a magnetic resistance of the fifth magnetic core passed through by the inductive magnetic flux. | 10-23-2014 |
20140313003 | HIGH CURRENT POWER INDUCTOR - A surface mount power inductor includes a preformed conductive winding clip and first and second-shaped core pieces. The core pieces may be configured to reduce unbalanced force experienced in the power inductor in certain types of power management circuitry. Reduction in the unbalanced force reduces vibration of the power inductor in use, and in turn reduces acoustic noise as the power inductor operates. | 10-23-2014 |
20140313004 | MAGNETIC COMPONENT AND TRANSFORMER MADE THEREFROM - A magnetic component and transformer made therefrom is provided. The magnetic component includes an outer circular wall including a first gap and a second gap; an inner circular wall including a third gap and a fourth gap; and a cylindrical core. The outer circular wall, the inner circular wall, and the cylindrical core are concentric to one another. The outer circular wall and the inner circular wall are spaced apart to define an outer radial channel. The inner circular wall and the cylindrical core are spaced apart to define an inner radial channel. A transformer is formed by wrapping a first winding about the inner circular wall and a second winding around the cylindrical core. | 10-23-2014 |
20140354391 | NOISE FILTER AND ELECTRONIC DEVICE WITH INTEGRATED COMMON MODE AND NORMAL MODE NOISE FILTERS - A noise filter and an electronic device including the same are disclosed. The noise filter is configured to suppress noise generated in a power line or a ground line of a power circuit unit provided in an electronic device. The electronic device including: at least one coil connected to the power line and the ground line; and a core around which the coil is wound, a common core portion configured to suppress common mode noise generated at the ground line and a normal core portion configured to suppress normal mode noise generated at the power line are formed as a single body. Thus, the common mode noise filter and the normal mode noise filter are integrated with each other to thereby improve productivity and reduce production costs. | 12-04-2014 |
20150054611 | SINGLE-CORE SELF-COUPLED INDUCTOR DEVICE - Single-core self-coupled inductor that offers an advantageous distribution of gaps ( | 02-26-2015 |
20150061808 | TRANSFORMER - A transformer | 03-05-2015 |
20150109086 | CORE AND COIL COMPONENT INCLUDING THE SAME - There are provided a core and a coil component including the same. The core includes core pieces coupled to each other, each of the core pieces including: a plurality of legs; a connection part connecting one ends of the legs to each other; and at least one contact part formed at a distal end of at least one of the legs in a manner in which a cross-sectional area of the leg may be decreased. | 04-23-2015 |
20150310984 | ENCLOSED MULTIPLE-GAP CORE INDUCTOR - In some embodiments, an inductor may include a core formed from a plurality of segments and having a plurality of discrete gaps and a winding encircling the plurality of segments so as to substantially enclose the core. | 10-29-2015 |
20150310988 | Contactless Connector - A contactless connector is provided and includes an inductive coupling element, a first contact lead, a second contact lead, a base plate, and an outer ferrite element. The inductive coupling element includes a plurality of windings, and the first contact lead and the second contact lead are connected to the plurality of windings and carry electric currents in opposing directions. The base plate includes a lead receiving passageway receiving both the first contact lead and the second contact lead, and the outer ferrite element is magnetically coupled to the base plate and partially surrounds the inductive coupling element. | 10-29-2015 |
20150332825 | REACTOR - A reactor includes a laminated core formed by laminating soft-magnetic ribbons in a lamination direction. The laminated core has a gap formed across a magnetic path direction in the laminated core. The laminated core also has a flat facing surface that faces the gap and a pair of flat side surfaces that are respectively on opposite sides of the facing surface in the lamination direction. The laminated core further has a pair of first corner curved surfaces that are formed between the facing surface and the pair of side surfaces. Each of the first corner curved surfaces has a width in the lamination direction greater than the thickness of each of the soft-magnetic ribbons. For each of the first corner curved surfaces, a length of the first corner curved surface in the magnetic path direction is greater than the width of the first corner curved surface in the lamination direction. | 11-19-2015 |
20150340147 | INDUCTOR CORE - An inductor core including a two separate inductor core components which, when assembled with each other, together form the inductor core and define a common axis; wherein the inductor core components form at least one magnetic flux barrier, the magnetic flux barrier having a width in the circumferential direction relative to the common axis; wherein the width is adjustable by rotating the inductor core components relative to each other around the common axis. | 11-26-2015 |
20150364240 | MAGNETIC CIRCUIT FOR CARRYING AT LEAST ONE COIL - The invention relates to a magnetic circuit ( | 12-17-2015 |
20160049235 | EMBEDDED MAGNETIC COMPONENT DEVICE - An embedded magnetic component device includes a magnetic core located in a cavity extending into an insulating substrate. The cavity and magnetic core are coved with a cover layer. Through holes extend through the cover layer and the insulating substrate, and are plated to define conductive vias. Metallic traces are provided at exterior surfaces of the cover layer and the insulating substrate to define upper and lower winding layers. The metallic traces and conductive vias define the respective primary and secondary side windings for an embedded transformer. At least a first isolation barrier is provided on the cover layer, and at least a third insulating layer is provided on the substrate. The second and third insulating layers provide additional insulation for the device, and define and function as a circuit board for surface mounted power electronics. | 02-18-2016 |
20160049236 | EMBEDDED MAGNETIC COMPONENT DEVICE - An embedded magnetic component device includes a magnetic core located in a cavity in an insulating substrate. An electrical winding includes inner and outer conductive connectors. An inner solid bonded joint boundary is located between first and second portions of the insulating substrate and extends between the cavity and the inner conductive connectors. An outer solid bonded joint boundary is located between the first and the second portions of the insulating substrate extends between the cavity and the outer conductive connectors. The minimum distance of the inner solid bonded joint boundary between any of the inner conductive connectors and the inner interior wall of the cavity is defined as D1, and the minimum distance of the outer solid bonded joint boundary between any of the outer conductive connectors and the outer interior wall of the cavity is defined as D2. D1 and D2 are about 0.4 mm or more. | 02-18-2016 |
20160064138 | IGNITION COIL FOR INTERNAL COMBUSTION ENGINE - An ignition coil for an internal-combustion engine, including an assembly of a primary coil, a secondary coil, and a central core, and a ring-shaped outer core surrounding the assembly. The assembly includes at least one first protrusion protruding from a first end surface of the secondary spool. The at least one first protrusion is in contact with an inside surface of the outer core and offset from the central core toward an opening of the outer core in a penetration direction of the outer core. The assembly further includes at least one second protrusion protruding from a second end surface of the primary spool. The at least one second protrusion protrudes beyond a second axial end surface of the central core so as to be in contact with the inside surface of the outer core and extends substantially the entire length of the outer core in the penetration direction. | 03-03-2016 |
20160141088 | MAGNETIC COMPONENT - A magnetic component includes a magnetic core, a winding, and a magnetic piece. The magnetic core includes at least one magnetic column, a top cover, and a bottom cover. The magnetic column is disposed between the top cover and the bottom cover, and an air gap is formed between the top cover and the magnetic column. The winding is wound on the magnetic column. The magnetic piece is disposed between the winding and the air gap, and the magnetic piece is arranged parallel to the air gap. | 05-19-2016 |
20160148748 | MAGNETIC COMPONENT WITH BALANCED FLUX DISTRIBUTION - An embodiment of an inductor assembly includes at least a first inductive loop with a first wire formed into a plurality of conductive windings around a first magnetic core section. The first magnetic core section includes at least a radially inner magnetic core portion with a first inner effective radius, R | 05-26-2016 |