| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 336084000 | Magnetic | 28 |
| 20090179726 | Inductor that contains magnetic field propagation - An inductor and method of containing a magnetic field is provided. The inductor includes a first set of layers wound in a first predetermined direction, wherein each layer of the first set of layers is electrically connected to one another, and a second set of layers wound in a second predetermined direction, wherein each layer of the second set of layers is electrically connected to one another and the first set of layers, and the second set of layers is between a top layer and a bottom layer, such that the top layer forms a first pair with a first layer of the second set of layers, and the bottom layer forms a second pair with a second layer of the second set of layers so that the magnetic field is substantially contained, such as to remain substantially within a gap defined between each layer of the pairs of layers. | 07-16-2009 |
| 20090289755 | TRANSFORMER APPARATUS WITH SHIELDING ARCHITECTURE AND SHIELDING METHOD THEREOF - A transformer apparatus and a transformer shielding method are provided for shielding external electronic noises and protecting against erosion. The transformer apparatus comprises a toroidal core, a primary winding, a secondary winding, a protection tape, a metal foil, and an UL tube. The primary winding and the secondary winding are wound around the toroidal core at opposite side to each other. The protection tape is wrapped around the primary winding and the secondary winding. The metal foil encloses the protection tape. The UL tube enfolds the metal foil. The transformer shielding method comprises wrapping a primary winding and a secondary winding of the transformer apparatus by a protection tape, enclosing the protection tape by a metal foil, and enfolding the metal foil by an UL tube. | 11-26-2009 |
| 20100013590 | CIRCUIT CARRIER AND TRANSFORMER ASSEMBLY - The present invention relates to a circuit carrier and transformer assembly. The circuit carrier and transformer assembly includes a circuit carrier and a transformer. The transformer includes a bobbin with multiple bobbin bases. The circuit carrier includes multiple receiving holes corresponding to respective bobbin bases of the bobbin. The bobbin bases are received in respective bobbin bases when the transformer is mounted on the circuit carrier. | 01-21-2010 |
| 20100019876 | TRANSIENT VOLTAGE AND HARMONIC CURRENTS QUASHING (THQ) TRANSFORMERS, TRANSFORMER WINDING TOPOLOGY, AND METHOD OF MAKING THE SAME - Different configurations of transient voltage quashing (TQ) transformers, harmonic current quashing (HQ) transformers, and transient voltage and harmonic current quashing (THQ) transformers include one or more of: a tertiary winding radially placed between the primary and secondary windings, with a surge suppressors coupled thereto, which quashes transient voltages in the transformer and any output device attached to output leads of the tertiary or secondary windings; and an arrangement of the secondary windings, separated by at least a second type intra-winding insulation, into one or a plurality of output winding groups, each used to provide power to N serially-connected output devices that exhibit known/expected output voltage characteristics. The second type intra-winding insulation has a dielectric strength to withstand the sum of the voltage output of the device being powered by the output winding and the adjacent serially-connected device, such that the output device experiences minimal harmonic currents. | 01-28-2010 |
| 20100026445 | STRUCTURE OF TRANSFORMER - A transformer includes a bobbin, a primary winding coil, a secondary winding coil, a case and a magnetic core assembly. The bobbin includes a winding member, a first channel, and multiple ground pins. The ground pins have first terminal parts protruded from a surface of the winding member. The primary winding coil and the secondary winding coil wound around the winding member. The case includes a receiving portion for partially accommodating the winding member therein, a second channel communicated with the receiving portion, and multiple perforations corresponding to the ground pins. The first terminal parts are penetrated through the perforations and protruded from a surface of the case when the winding member is accommodated in the receiving portion. The magnetic core assembly is partially embedded into the first channel and the second channel, so that the magnetic core assembly is contacted with the first terminal parts of the ground pins. | 02-04-2010 |
| 20100164675 | METHOD FOR PRODUCING A CYLINDRICAL RADIO-FREQUENCY SHIELD OF A CYLINDRICAL GRADIENT COIL FOR A MAGNETIC RESONANCE SYSTEM - In a method for manufacturing a cylindrical high-frequency shield of a cylindrical gradient coil for a magnetic resonance system, a number of planar shield elements are placed adjacent to one another on a cylindrical support, together with a solder band or solder strip on the support. The segments or elements are inductively soldered together by an inductive soldering device that moves along a longitudinal axis of the cylindrical support. | 07-01-2010 |
| 20110043320 | Electrostatic Shield for an HVDC Transmission Component - An electrostatic shield for an HVDC transmission component, the terminals of which lie at high potential relative to earth during operation, in particular for an HVDC transmission air-core coil, is distinguished by a sheathing, which is provided on at least one end with a collector electrode running substantially over its periphery for connection to one of the terminals of the HVDC transmission component, wherein the sheathing is made from a film composed of electrostatically dissipative material with a surface resistivity in the range of 10 | 02-24-2011 |
| 20110128111 | PLANAR, MONOLITHICALLY INTEGRATED COIL - The present invention provides a means to integrate planar coils on silicon, while providing a high inductance. This high inductance is achieved through a special back- and front sided shielding of a material. In many applications, high-value inductors are a necessity. In particular, this holds for applications in power management. In these applications, the inductors are at least 5 of the order of 1 μH, and must have an equivalent series resistance of less than 0.1 Ω. For this reason, those inductors are always bulky components, of a typical size of 2×2×1 mm 3, which make a fully integrated solution impossible. On the other hand, integrated inductors, which can monolithically be integrated, do exist. However, these inductors suffer either from low inductance values, or 10 very-high DC resistance values. | 06-02-2011 |
| 20110248814 | Shielded-type inductor - An inexpensive shielded-type inductor is disclosed to include a first powder compact member, a coil embedded in the first powder compact member with the bottom side of the coil body thereof kept in flush with the bottom side of the first powder compact member and two metal terminals thereof extending from the two opposite ends of the coil body to the outside of the first powder compact member, and a second powder compact member bonded to the bottom side of the first powder compact member to determine the inductance value of the inductor subject to the thickness of the second powder compact member and to protect the inductor against external environmental factors. | 10-13-2011 |
| 20110291792 | HIGH FREQUENCY TRANSFORMERS - High frequency, high power density coaxial, planar and three-phase transformers for converters and inverters are disclosed. One of the coaxial transformers comprises at least one primary winding and at least one secondary winding associated with at least one magnetic core, at least one coaxial Faraday shield between and substantially coaxial with the at least one primary winding and the at least one secondary winding and a substantially planar Faraday shield at one or more ends of the at least one magnetic core. | 12-01-2011 |
| 20120218071 | HIGH-FREQUENCY COUPLER AND COMMUNICATION DEVICE - A high-frequency coupler and a communication device are compact, capable of efficiently communicating a large volume of data over a short distance and can be used in combination with a non-contact IC card. The high-frequency coupler includes magnetic-field-generating patterns and a surrounding pattern disposed around a periphery thereof, and is used to communicate a large volume of data over a short distance in a communication system that uses broadband frequencies. Out of the magnetic fields radiated in directions perpendicular or substantially perpendicular to the plane of the patterns from the magnetic-field-generating patterns, portions extending laterally in the plane of the patterns are blocked by the surrounding pattern, the magnetic fields are lengthened in a direction perpendicular or substantially perpendicular to the plane of the patterns and the communication distance is increased. | 08-30-2012 |
| 20120286921 | RF COIL ASSEMBLY FOR MAGNETIC RESONANCE APPARATUS - The coil assembly includes a substrate including a first coil set and a second coil set. The first coil set includes two or more coil elements that are configured to operate at a first radio frequency and the second coil set includes one or more coil elements that are configured to operate at a second radio frequency. The substrate is a flexible substrate and radio-frequency isolation means are provided for reducing coupling between at least some of the coil elements. In one embodiment, the first coil set includes a pair of first coil elements that share a common central conductor and a second coil set that includes a pair of second coil elements that also shares the common central conductor. | 11-15-2012 |
| 20130069757 | MULTILAYERED INDUCTOR AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a multilayered inductor including: a multilayered body in which a plurality of body sheets are multilayered; a coil part configured of internal electrode patterns formed on the body sheets; a magnetic path shielding part formed in a vertical direction so as to be adjacent to the coil part and made of a non-magnetic material; and external electrodes formed at both sides of the multilayered body and electrically connected to both ends of the coil part. Therefore, even though the number of non-magnetic materials is increased, the closed magnetic path structure is maintained, thereby making it possible to easily implement the inductance. In addition, the multilayered numbers of the internal electrode patterns configuring the coil part are decreased, such that a region in which the coil part is not present in the multilayered inductor is increased, thereby making it possible to improve the DC bias characteristics. | 03-21-2013 |
| 20130127581 | CURRENT TRANSFORMER - Exemplary embodiments are directed to a current transformer having a toroidal magnetic core around which an even number of shielding coils is wound. The shielding coils are operatively associated two by two to form corresponding couples. The shielding coils of each couple are wound on parts of the toroidal magnetic core opposite to each other and are connected in parallel to each other for obtaining a magnetic flux in them. The magnetic flux in a first shielding coil of a couple of shielding coils has an opposite direction with respect to a magnetic flux in a second shielding coil of the couple. The couples of shielding coils are connected in series. | 05-23-2013 |
| 20130127582 | SINGLE- OR MULTI-PHASE DRY-TYPE TRANSFORMER HAVING AT LEAST TWO COILS - A single- or multi-phase dry-type transformer includes at least two coils. A barrier between phases made of an electrically insulating material is arranged in the intermediate space between the individual coils. | 05-23-2013 |
| 20130200982 | MAGNETIC COMPONENT - A magnetic component includes a plurality of coils, a magnetic core, and a shield. The coils form at least one of a primary coil and a secondary coil to which a voltage corresponding to a voltage induced to the primary coil is induced. The magnetic core penetrates through the coils. The shield is disposed at least one of between different coils in the coils and between one or more of the coils and the magnetic core. Each of the coils and the shield are respectively pattern-formed on substrates. Each of the coils and the shield have a stacking structure. | 08-08-2013 |
| 20130314200 | Multiple Cells Magnetic Structure for Wireless Power - The magnetic component structures of this invention provides an improved magnetic core and winding arrangement which increases the inductive coupling between the primary and the secondary part compared to a similar single cell structure. | 11-28-2013 |
| 20140028433 | TRANSFORMER - There is provided a transformer including: a bobbin; a primary coil member mounted in the bobbin; and a secondary coil member formed integrally with the bobbin. | 01-30-2014 |
| 20140152417 | ANTENNA SHIELD FOR PROXIMITY-BASED COMMUNICATION DEVICES - A shielding article is provided, for shielding a device enabled for proximity-based communications, for example, NFC-enabled devices. The shielding article comprises a shielding component configured to prevent operation of an antenna of the device used for conducting proximity-based communications, without preventing operation of at least one other antenna of the device when the shielding component is aligned with the antenna used for conducting proximity-based communications. The shielding article may be separate from, or included in an accessory or carrying article and may be fixed or detachably coupled thereto. | 06-05-2014 |
| 20150009006 | TRANSFORMER - There is provided a transformer including: a bobbin; a primary coil member mounted in the bobbin; and a secondary coil member formed integrally with the bobbin. | 01-08-2015 |
| 20150130583 | WIRELESS POWER TRANSFER SYSTEMS CONTAINING FOIL-TYPE TRANSMITTER AND RECEIVER COILS - Wireless power transfer systems include at least one foil-type transmitter/receiver coil with a plurality of turns, which is configured to reduce eddy current losses therein when energized to conduct an alternating current that supports inductive power transfer including coil-to-coil power electrical transfer, inductive heating, etc. The plurality of turns includes at least an outermost turn with a first arcuate-shaped corner having a concave inner surface, which faces an immediately adjacent one of the plurality of turns. The immediately adjacent one of the plurality of turns may also have a second arcuate-shaped corner with a concave inner surface facing an innermost one of the plurality of turns. The first arcuate-shaped corner may have a non-uniform radius of curvature and/or an innermost one of the plurality of turns may have an arcuate-shaped corner, which is a mirror image of the first arcuate-shaped corner when the coil is view in transverse cross-section. | 05-14-2015 |
| 20150137933 | Arrangement for Providing Vehicles with Energy Comprising Magnetizable Material - The invention relates to an apparatus for providing vehicles with energy by magnetic induction. The apparatus has a primary side electric conductor and a field shaping layer. The invention also relates to a composite layer for shaping magnetic field lines of an electromagnetic field generated by an electric conductor. The composite layer includes a continuous supporting layer and a plurality of elements made of magnetizable material. Finally, the invention relates to a method of generating an apparatus for providing vehicles with energy by magnetic induction. | 05-21-2015 |
| 20180025827 | Arrangement for Providing Vehicles with Energy Comprising Magnetizable Material | 01-25-2018 |
| 20090146772 | INDUCTIVE DEVICE INCLUDING PERMANENT MAGNET AND ASSOCIATED METHODS - The radio frequency (RF) inductor includes a core being electrically non-conductive and ferrimagnetic, and having a toroidal shape, and a wire coil thereupon. At least one permanent magnet body is at a fixed position within the interior of the core, and an electrically conductive RF shielding layer is on the at least one permanent magnet body. The core may be ferrite for example. The electrically conductive RF shielding layer may be a conductive plating layer or a metal foil surrounding the permanent magnet body, for example. A magnetic field from the permanent magnet is applied to the inductor core to reduce losses, and the permanent magnet may be enclosed within the conductive shield to keep RF fields out. The inductor may be made small and have increased Q and resulting efficiency. The RF inductor may be applicable to RF communication circuits, for example, as an antenna coupler. | 06-11-2009 |
| 20090160596 | MAGNETIC DEVICE - A magnetic device includes a circuit board, a magnetic induction element, an insulating structure and a plurality of conductive wire segments. The circuit board has at least one conductive layer. The magnetic induction element is disposed on the circuit board. The insulating structure covers the magnetic induction element. The insulating structure is wound by the conductive wire segments. Two ends of each conductive wire segments are electrically connected to the conductive layer to form a coil loop. | 06-25-2009 |
| 20090167478 | DEVICE FOR IMPROVING EDDY CURRENT LOSS OF TRANSFORMER AND CONTROLLING METHOD THEREOF - The configurations of a device diminishing the eddy current loss for a transformer having a gap are provided in the present invention. The proposed device includes a conductive case having an eddy current diminishing opening opposite to the air-gap and an insulator disposed between the eddy current diminishing opening and the transformer. | 07-02-2009 |
| 20090251273 | METHOD AND APPARATUS FOR SUBSTANTIALLY REDUCING ELECTRICAL EARTH DISPLACEMENT CURRENT FLOW GENERATED BY WOUND COMPONENTS WITHOUT REQUIRING ADDITIONAL WINDINGS - Apparatus for reducing electrical earth displacement current flow generated by wound components is disclosed. In one aspect, an apparatus includes a plurality of layers of an input winding wound around an energy transfer element core. An outer layer of the plurality of layers of the input winding is wound with a number of turns different than the number of turns in substantially each of the inner layers of the plurality of layers of the input winding. An output winding is wound around the energy transfer element core with substantially the same number of turns as the number of turns of the outer layer of the plurality of layers of the input winding to reduce substantially a capacitive displacement current flowing between the input and output windings. | 10-08-2009 |
| 20090289754 | Magnetic Induction Device - A magnetic induction device (MID) is described. The MID comprises at least one primary electrical winding, at least one secondary electrical winding, and an electrically-conductive cover (BCC) which is electrically connected to a local ground and at least partially surrounds, without forming a closed conductive loop, a core via which the at least one primary electrical winding and the at least one secondary electrical winding are magnetically coupled. Related apparatus and methods are also described. | 11-26-2009 |
| 20100109832 | METHOD AND APPARATUS FOR ADJUSTING DISPLACEMENT CURRENT IN AN ENERGY TRANSFER ELEMENT - A method includes calculating a number of turns of a shield winding included in an energy transfer element of a power supply, where the calculating is to have a low noise current in an input conductor of the power supply. The method further includes: increasing the number of turns for the shield winding; operating the power supply; and adjusting a value of a shield impedance to substantially reduce the noise current. An apparatus includes a power supply having an energy transfer element and a shield impedance. The energy transfer element includes a shield winding having an end terminated externally to the energy transfer element. The shield impedance is coupled between the externally terminated end of the shield winding and an input conductor of the power supply, where the shield impedance has a non-zero finite impedance value to substantially reduce a noise current in the input conductor. | 05-06-2010 |
| 20100127815 | ELECTROSTATIC SHIELD AND VOLTAGE TRANSFORMER - An electrostatic shield and a voltage transformer having a high voltage winding and a low voltage winding. The shield takes the form of a concentric winded coil, made from a round conductive wire having a layer of insulation around it and a radius of at least ten times the radius of the wire used for the high voltage winding. This shield is dimensioned to surround the high voltage winding of the transformer. | 05-27-2010 |
| 20100289610 | Planar magnetic structure - An improved planar magnetic structure in which the voltage gradient between core and windings is reduced by shields disposed between the one or more legs of the core and the windings and extending through the PWB layers; vias are offset to permit them to be contained within the path of the winding; and the induced magnetic and eddy currents intrinsic to interstitial shield layers are reduced by configuring the shield conductors with pairs of courses with opposite and offsetting current propagation. | 11-18-2010 |
| 20110006872 | MAGNETIC SHIELD LAYOUT, SEMICONDUCTOR DEVICE AND APPLICATION - Magnetic shield layout ( | 01-13-2011 |
| 20110018676 | TRANSFORMER ASSEMBLY - The present invention relates to a transformer assembly ( | 01-27-2011 |
| 20110025447 | HIGH VOLTAGE DRY-TYPE REACTOR FOR A VOLTAGE SOURCE CONVERTER - A high voltage dry-type reactor is series-connected via a first terminal to an AC supply voltage and via a second terminal to the AC phase terminal of a high voltage converter and includes a cylindrical coil of insulated wire. In order to protect the reactor from a damaging DC field, the reactor further includes a metallic or resistive electrostatic shield which is connected to a same DC potential as the converter. | 02-03-2011 |
| 20110205010 | Inductor For High Frequency Applications - The invention provides an inductor assembly suitable for use in high frequency switched mode power converters, where the rate of change of voltage can exceed 10 | 08-25-2011 |
| 20110273261 | Magnetically Shielded Inductor Structure - In one embodiment, an apparatus includes an inductor and an electrically conductive structure surrounding the inductor. The electrically conductive structure conducts a current when a first magnetic field passes through the electrically conductive structure. The current creates a second magnetic field opposing the first magnetic field. | 11-10-2011 |
| 20110298574 | Contactless communication medium, antenna pattern arrangement medium, communication apparatus, and communication method - A contactless communication medium includes: a base material made of an insulating material; an antenna coil portion formed by winding a conductor in a plane on the base material; a capacitor connected to the antenna coil portion; a communication processing section connected to the antenna coil portion and the capacitor to perform a contactless communication process; and a metal pattern having a predetermined area and disposed in a region surrounded by the antenna coil portion, the metal pattern being not electrically connected to the antenna coil portion or the capacitor. | 12-08-2011 |
| 20120169450 | LEAD-OUT TUBE - A lead-out tube for high-voltage transformers is disclosed along with a method of manufacturing a lead-out tube. The lead-out tube can include a shielding tube of an electrically conductive material which extends a hollow-cylindrically around an at least sectionally curved path in an axial direction. A hollow-cylindrical shaped electrical insulating layer can be arranged at a first radial distance around the shielding tube along the axial extent. Sectionally flexible strips can be arranged along the at least sectionally curved path adjacent to one another at a second radial distance around the shielding tube. The insulating layer can be wound from a tape-like insulating material around the sectionally flexible strips. | 07-05-2012 |
| 20120242447 | SHIELD AND VEHICLE INCORPORATING THE SHIELD - A shield for a coil unit to carry out non-contact power feeding by a resonance method includes a magnetic sheet capable of reducing a magnetic field, and a copper shield capable of reducing both an electric field and magnetic field. The magnetic sheet is arranged to take a layered configuration at a side closer to the coil unit than the copper shield. | 09-27-2012 |
| 20130043970 | METHOD AND APPARATUS FOR ACHIEVING GALVANIC ISOLATION IN PACKAGE HAVING INTEGRAL ISOLATION MEDIUM - An inductor device having an improved galvanic isolation layer arranged between a pair of coil and methods of its construction are described. | 02-21-2013 |
| 20130049919 | VERTICAL SLOW-WAVE SYMMETRIC INDUCTOR STRUCTURE FOR SEMICONDUCTOR DEVICES - A vertical inductor structure in a semiconductor device includes a plurality of vertically oriented spirals that produce magnetic field in a dielectric material above the surface of a semiconductor substrate thereby preventing any eddy currents from propagating in the substrate. An inductor shield structure is also provided. The inductor shield structure is formed over the substrate surface and between an inductor such as the vertical inductor structure or other inductor types and also prevents eddy currents from being induced in the substrate. The inductor shield may surround the inductor to various degrees. | 02-28-2013 |
| 20130088318 | REACTOR AND METHOD FOR PRODUCING SAME | 04-11-2013 |
| 20130106562 | METHOD FOR MAKING INDUCTOR COIL STRUCTURE | 05-02-2013 |
| 20130113597 | TRANSFORMER WITH SHIELDED CLAMPS - The present disclosure provides for the shielding of clamps of a transformer, and including an electric shielding arrangement for a transformer and a transformer with the arrangement. An electric shielding arrangement for a transformer is provided, with a clamp which is attached at a yoke and stabilizes the yoke of the transformer. The arrangement includes an electric shielding device arranged at the clamp between the yoke and a winding of the transformer and having a trough-like form. The electric shielding device may have the form of a rounded cover and is configured to shield the clamp from an electric field of the winding. | 05-09-2013 |
| 20130113598 | TRANSFORMER WITH SHIELDING RINGS IN WINDINGS - A coil and electric shielding arrangement for a dry-type transformer includes an electric shielding device arranged at a distance from a winding, at an axial end of the winding perpendicular to a longitudinal axis of the transformer, and parallel to a top surface of a coil that is wound around the axis such that the electric shielding device covers a cross-sectional area of the winding perpendicular to the longitudinal axis. An insulation material attached to the winding and to the electric shielding device establishes a first distance between the winding and the electric shielding device along the longitudinal axis such that the winding is shielded against another electric field. The winding and the electric shielding device are casted in a block which insulates the electric shielding device from the electric field of the winding by establishing a second distance between the winding and the electric shielding device. | 05-09-2013 |
| 20130207767 | Planar Transformers - A planar transformer comprises a plurality of conductive windings provided by at least one PCB and linked by a common ferrite core passing through the or each PCB. The transformer windings are at least partially magnetically shielded from the ferrite core by a conductive non-continuous shield formed by copper planed areas on one or more of the PCB layers to improve the coupling between the windings. | 08-15-2013 |
| 20140062647 | CONTINUOUSLY TRANSPOSED CONDUCTOR - In order to be able to industrially produce a transposed conductor with jointly transposed partial conductors located one atop the other and in order to be able to further process such a transposed conductor to form a winding, the invention proposes that two adjacent single conductors ( | 03-06-2014 |
| 20140118101 | TRANSFORMER PROVIDED WITH A TAPS PANEL, AN ELECTRIC-INSULATION METHOD TAPS PANEL OF A DRY DISTRIBUTION TRANSFORMER, AND A TAPS PANEL FOR A DRY DISTRIBUTION TRANSFORMER - The present invention relates to a dry distribution transformer comprising a housing ( | 05-01-2014 |
| 20140139313 | MAGNETIC CORE AND BOBBIN AND TRANSFORMER USING THE SAME - The disclosure provides a magnetic core comprising a base, a center column, a first side column and a second side column fixed to the base. The first side column, the second side column and the center column are defined an annular space for accommodating a bobbin and/or a winding. The annular space have a first core opening and a second core opening thereon. A size of the first core opening between the first side column and the second side column is defined as a first core opening width. A size of the second core opening between the first side column and the second side column is defined as a second core opening width. Wherein at least one wire receiving space is provided at the base of the magnetic core, and the wire receiving space is located within the first core opening and/or the second core opening. | 05-22-2014 |
| 20140159854 | PLANAR INDUCTOR FLOATING SHIELD FOR Q ENHANCEMENT - An inductive device is provided, which includes a substrate, a layer having a plurality of conductive metal traces and a conductive trace. The conductive trace has an input port, a first portion, a second portion, a third portion and an output port. The metal shield layer is disposed between the substrate and the conductive trace. Each of the plurality of conductive metal traces has a respective length and a respective width. Each of the plurality of conductive metal traces are separated from one another. Each of the plurality of conductive metal traces are disposed perpendicularly with the first portion and the third portion. | 06-12-2014 |
| 20140176292 | SHIELD FOR TOROIDAL CORE ELECTROMAGNETIC DEVICE, AND TOROIDAL CORE ELECTROMAGNETIC DEVICES UTILIZING SUCH SHIELDS - A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly. | 06-26-2014 |
| 20140232509 | ELECTROSTATIC SHIELD FOR A TRANSFORMER - An electrostatic shield for controlling the electrostatic field between a high voltage conductor and a low voltage conductor in an instrument transformer is provided. The instrument transformer has a current transformer and a voltage transformer. The current transformer has a split core which includes a first core segment and a second core segment. When the first core segment adjoins the second core segment, a current transformer is formed, having a core formed from the first and second core segments. The high voltage conductor runs between the first and second core segments of the current transformer. The first core segment is encapsulated in a polymer resin and when encapsulated, forms a first encasement. The second core segment has a low voltage winding mounted thereon. The electrostatic shield is disposed between the low voltage winding and the high voltage conductor. A second encasement is formed by encapsulating the electrostatic shield, low voltage winding and second core segment in a polymer resin. | 08-21-2014 |
| 20140240079 | METHOD FOR MANUFACTURING THIN METAL WIRE ELECTROMAGNETIC SHIELD, THIN METAL WIRE ELECTROMAGNETIC SHIELD, AND STATIONARY INDUCTION APPARATUS INCLUDING THE SAME - A method for manufacturing a thin metal wire electromagnetic shield includes the steps of preparing a thin metal wire bundle unified by bundling a plurality of thin metal wires each having a surface coated with an insulating material, and compression-molding the thin metal wire bundle by press working. | 08-28-2014 |
| 20140292471 | TRANSFORMER - A transformer includes at least one primary interface winding, at least one secondary interface winding, in which at least part of the primary interface winding is formed on an insulating device or insulator. At least part of the primary interface winding and at least part of the secondary interface winding collectively form a noise reduction mechanism. | 10-02-2014 |
| 20140347158 | ISOLATION TRANSFORMER FOR USE IN ISOLATED DC-TO-DC SWITCHING POWER SUPPLY - An isolated DC-to-DC switching power supply includes an isolation transformer having a magnetic core, a first winding around the magnetic core, a first winding-shield around the magnetic core, a second winding-shield within the first winding-shield, and a second winding within the second winding-shield. There is no direct coupling between the first winding and the second winding since the second winding is enclosed within the second winding-shield and the second winding-shield is enclosed within the first winding-shield. | 11-27-2014 |
| 20140347159 | TRANSFORMER - A transformer includes a primary winding unit, a secondary winding unit and a magnetic core. The primary winding unit includes a first input primary winding part and a first shielding winding part. The first input primary winding part is electrically connected to at least one switch component, and the first input primary winding part is electrically connected to the first shielding winding part. The secondary winding unit is inductively coupled to the primary winding unit, and the first shielding part is disposed between the first input primary winding part and the secondary winding part. Then, the primary winding unit and the secondary winding unit are assembled to the magnetic core. | 11-27-2014 |
| 20150028989 | ELECTROSTATIC SHIELDING OF TRANSFORMERS - Toroidal transformers are currently used only in low-voltage applications. There is no published experience for toroidal transformer design at distribution-level voltages. Toroidal transformers are provided with electrostatic shielding to make possible high voltage applications and withstand the impulse test. | 01-29-2015 |
| 20150084733 | RECONFIGURABLE MULTI-STACK INDUCTOR - A reconfigurable multi-stack inductor formed within a semiconductor structure may include a first inductor structure located within a first metal layer of the semiconductor structure, a first ground shielding structure located within the first metal layer that is electrically isolated from and circumferentially bounds the first inductor structure, and a second inductor structure located within a second metal layer of the semiconductor structure, whereby the second inductor structure is electrically coupled to the first inductor structure. A second ground shielding structure located within the second metal layer is electrically isolated from and circumferentially bounds the second inductor structure, whereby the first and second inductor generate a first inductance value based on the first ground shielding structure and second ground shielding structure being coupled to ground, and the first and second inductor generate a second inductance value based on the first ground shielding structure and second ground shielding structure electrically floating. | 03-26-2015 |
| 20150109090 | ELECTRICAL TRANSFORMER WITH A SHIELDED CAST COIL ASSEMBLY - A transformer has a core of magnetic permeable material. A first coil assembly extends around the core and includes an electrical conductive first coil embedded in a first body of electrically insulating material. A second coil assembly extends around the first coil assembly and includes an electrical conductive second coil embedded in a second body of electrically insulating material. A first shield of electrically conductive, non-magnetic material is between the first and second coil assemblies and is embedded in either the first body or the second body. Optionally a second shield of electrically conductive, magnetic material is embedded in the second body and extends around and outside the second coil. | 04-23-2015 |
| 20150348696 | INDUCTION CHARGING COIL DEVICE - An induction charging coil device is provided, in particular an induction charging coil device for a hand-held power tool, including at least one coil unit having at least one shielding unit, at least one core unit and at least one electronics unit and/or one cell unit to be shielded. It is provided that a projection area of the core unit, in the case of a projection in the direction of a winding axis of the coil unit, covers at least essentially the electronics unit and/or the cell unit to be shielded. | 12-03-2015 |
| 20150348700 | ON-CHIP INDUCTOR AND METHOD FOR MANUFACTURING THE SAME - There are provided an on-chip inductor, and a method for manufacturing the same. The on-chip inductor may include: a substrate; an oxide layer formed on the substrate; a spiral-shaped wiring layer formed on the oxide layer; and a shielding layer having a lattice shape interposed between the substrate and the wiring layer. | 12-03-2015 |
| 20160027575 | CIRCUIT BOARD MAGNETIC COMPONENT WITH INTEGRATED GROUND STRUCTURE AND METHODS FOR MANUFACTURE - Circuit board transformer components include a bobbin having at least one ground pin with a board pin portion and a component ground section extending substantially perpendicular to the board pin portion. The component ground section is secured to a magnetic piece or the bobbin to address electromagnetic interference in a power supply application. The components are manufacturable with a reduced number of steps and greater uniformity with improved performance characteristics. | 01-28-2016 |
| 20160111197 | EMBEDDED MAGNETIC COMPONENT TRANSFORMER DEVICE - A transformer device includes primary, secondary, and auxiliary windings, located in an insulating substrate by conductive vias joined together by conductive traces. Positions of the conductive vias are arranged so as to optimize the isolation properties of the transformer, and to improve the coupling of the transformer by increasing the leakage inductance and reducing the distributed capacitance. The transformer device is compact and is weakly coupled. The weak coupling between the windings reduces the likelihood of the transformer malfunctioning, particularly when used in a self-resonant converter circuit. | 04-21-2016 |
| 20160111200 | EMBEDDED MAGNETIC COMPONENT TRANSFORMER DEVICE - A transformer device includes primary, secondary, and auxiliary windings, located in an insulating substrate by conductive vias joined together by conductive traces. Positions of the conductive vias are arranged so as to optimize the isolation properties of the transformer, and to improve the coupling of the transformer by increasing the leakage inductance and reducing the distributed capacitance. The transformer device is compact and is weakly coupled. The weak coupling between the windings reduces the likelihood of the transformer malfunctioning, particularly when used in a self-resonant converter circuit. | 04-21-2016 |
| 20160155564 | SHIELD FOR TOROIDAL CORE ELECTROMAGNETIC DEVICE, AND TOROIDAL CORE ELECTROMAGNETIC DEVICES UTILIZING SUCH SHIELDS | 06-02-2016 |
| 20190148052 | EMBEDDED MAGNETIC COMPONENT TRANSFORMER DEVICE | 05-16-2019 |
| 20080238602 | COMPONENTS WITH ON-DIE MAGNETIC CORES - An apparatus may include a first magnetic layer, a second magnetic layer, and a conductive pattern. The conductive pattern is at a third layer between the first and second magnetic layers. Moreover, one or more magnetic vias connect the first and second magnetic layers. The magnetic layers and vias may operate as ferromagnetic cores or shields. Further they may be integrated on a chip (on-die magnetics). The apparatus may be included in inductors, transformers, transmission lines, and so forth. | 10-02-2008 |
| 20080278275 | Miniature Transformers Adapted for use in Galvanic Isolators and the Like - A component coil for constructing transformers and the transformer constructed therefrom are disclosed. The component coil includes a substrate having an insulating layer of material having top and bottom surfaces. First and second traces are included on the top and bottom surfaces. Each trace includes a spiral conductor. The inner ends of the spiral conductors are connected by a conductor that passes through the insulating layer. The first and second spiral conductors are oriented such that magnetic fields generated by the first and second spiral conductors have components perpendicular to the top surface and in the same direction. The component coils can be used to construct a power transformer or a galvanic isolator. | 11-13-2008 |
| 20090040003 | Solution Of Power Consumption Reduction For Inverter Covered By Metal Case - For improving efficiency of a power device having an exposed surface capable of radiating energy, a shielding layer is disposed in between the exposed surface and a conductive layer. The shielding layer causes at least a portion of the energy to be directed back into the power device, thereby substantially preventing the energy from inducing eddy currents in the conductive layer. The conductive layer is fabricated from a metal foil for compliance with electromagnetic energy leakage regulations. | 02-12-2009 |
| 20090091415 | Solution Of Power Consumption Reduction For Inverter Covered By Metal Case - For improving efficiency of a power device having an exposed surface capable of radiating energy, a shielding layer is disposed in between the exposed surface and a conductive layer. The shielding layer causes at least a portion of the energy to be directed back into the power device, thereby substantially preventing the energy from inducing eddy currents in the conductive layer. The conductive layer is fabricated from a metal foil for compliance with electromagnetic energy leakage regulations. | 04-09-2009 |
| 20090115564 | Systems and Methods for Forming an Isolated Transformer - A transformer to isolate a primary winding from a signal winding include a primary substrate (which may comprise a printed circuit board (PCB)) and a secondary substrate. The primary and secondary substrates may each have three openings to allow first and second E-E core halves to be joined therebetween. A first insulator may be disposed between the primary and secondary substrates to isolate the primary substrate from the secondary substrate. A second insulator may secure the primary and secondary substrates in place and insulate the secondary substrate from the core. The primary and secondary substrates may each include a Faraday shield its outer layers. A shield slit to prevent shorting between the legs of the E-E core may be formed by cutting a channel in the shield between the opening of the primary and secondary substrates. A retaining clip may be used to clamp together the primary substrate, first and second core E-E core halves, secondary substrate and second insulator. A primary winding and sense winding may be disposed within the primary substrate and a signal winding may be disposed within the secondary substrate. The primary, sense, and signal windings may be positioned so that the magnetic flux produced by the primary winding passes through the signal and sense windings in substantially equal proportions. The primary and signal winding may enter the E-E core from opposite directions to choke any common mode current therebetween. | 05-07-2009 |
| 20090206976 | REACTOR SHIELD - A reactor shield including a plurality of closed loops of electrically conductive wires arranged around a reactor. | 08-20-2009 |
| 20090273432 | HIGHLY COUPLED INDUCTOR - A highly coupled inductor includes a first ferromagnetic plate, a second ferromagnetic plate, a film adhesive between the first ferromagnetic plate and the second ferromagnetic plate, a first conductor between the first plate and the second plate, and a second conductor between the first plate and the second plate. A conducting electromagnetic shield may be positioned proximate the first conductor for enhancing coupling and reducing leakage flux. A method of manufacturing a highly coupled inductor component includes providing a first ferromagnetic plate and a second ferromagnetic plate, placing conductors between the first ferromagnetic plate and the second ferromagnetic plate, and connecting the first ferromagnetic plate and the second ferromagnetic plate using a film adhesive. | 11-05-2009 |
| 20100026444 | MAGNETIC ELEMENT - A magnetic element includes a core, a coil and a magnetic shield. The coil is wound around the core. The magnetic shield that contains a Fe-based powder is used to cover the coil and at least a part of the core so as to reduce the noise interference on the magnetic element. | 02-04-2010 |
| 20100194518 | CAST-COIL INDUCTOR - An inductor device is described. The inductor device includes a core comprising two core sections, at least one gap defined between the two core sections, and at least one cast coil and fringe shield assembly. The at least one cast coil and fringe shield assembly includes a conductor winding and a fringe shield sealed within an insulator. The at least one cast coil and fringe shield assembly is configured to at least partially surround portions of the two core sections. | 08-05-2010 |
| 20110193673 | MAGNETIC ELEMENT AND BOBBIN THEREOF - A magnetic element includes a bobbin, a first winding assembly, a second winding assembly and a magnetic core assembly. The bobbin includes a winding part, a first extension part and a second extension part. The first extension part and the second extension part are separated from each other by the winding part. The first winding assembly is wound around the winding part of the bobbin, and includes plural first terminals. The second winding assembly is wound around the winding part of the bobbin, and includes plural second terminals. The magnetic core assembly includes a first window and a second window. The first extension part is protruded out of the first window. The second extension part is protruded out of the second window. At least one of the first terminals and at least one of the second terminals are simultaneously fixed on the first extension part and/or the second extension part. | 08-11-2011 |
| 20110298575 | MAGNETIC SHUNT, MAGNETIC SHUNT ARRANGEMENT AND POWER DEVICE - A magnetic shunt is provided for magnetic shielding of a power device (e.g., a power transformer). The magnetic shunt includes magnetic flux collectors that are magnetically connected by a magnetically permeable bridge. The bridge is arranged between the magnetic flux collectors with one magnetic flux collector being placed at each end of the bridge. The cross-section of the magnetic flux collectors is larger than the cross-section of the bridge, and the magnetic shunt forms a single structural unit. A magnetic shunt arrangement and a power device which include magnetic shunts according to the present disclosure are also provided. | 12-08-2011 |
| 20120081205 | MAGNETIC ELEMENT - A problem to be solved is to prevent leakage of magnetic flux in a magnetic element. A magnetic element has a winding having conductivity, and a core member disposed in a state that the winding is wound, in which the core member includes a first core member having a bottom wall and a plurality of peripheral walls provided to stand on peripheral side portions of the bottom wall, and a second core member having a plate shape which is cross-shaped or substantially cross-shaped, in which cutout portions for allowing fitting of end portions of the cross shape of the second core member are formed in the peripheral walls of the first core member. | 04-05-2012 |
| 20120146760 | TRANSFORMER - A transformer includes a leg iron core including a plurality of magnetic sheets stacked in one direction (Z axis direction), and a coil wound around the leg iron core. A slit is formed in at least a magnetic sheet which faces an inner peripheral surface of the coil in a stacking direction of the plurality of magnetic sheets, of the plurality of magnetic sheets. Since eddy current is divided by the slit, eddy current density can be reduced. By reducing the eddy current density, loss density in an iron core can be reduced. By reducing the loss density in the iron core, loss in the transformer can be reduced. | 06-14-2012 |
| 20120212316 | INTEGRATED CIRCUITS INCLUDING INDUCTORS - An integrated circuit includes a substrate having a surface. An inductor is disposed over the surface of the substrate. The inductor is operable to generate a magnetic field through itself that is substantially parallel with the surface. | 08-23-2012 |
| 20130127580 | SHIELDED POWER COUPLING DEVICE - Axisymmetric solid of revolution derivable from section at FIG. | 05-23-2013 |
| 20130181805 | ANTENNA MODULE, COMMUNICATION DEVICE AND METHOD OF MANUFACTURING ANTENNA MODULE - A communication device that, when incorporated in an electronic device, can reduce the size and the thickness of a housing of the electronic device while maintaining communication characteristics. The communication device includes an antenna coil that is arranged on a peripheral part of a housing surface facing a reader-writer of a mobile phone, a magnetic sheet that attracts the magnetic filed transmitted from the reader-writer to the antenna coil, and a communication processing unit that is driven by a current flowing through the antenna coil and communicates with the reader-writer. The magnetic sheet is arranged to be closer to reader-writer than the antenna coil in the central part, and the antenna coil is arranged to be closer to the reader-writer on the outer periphery side, and at least a part of the conductive line of the antenna coil is superimposed in a direction orthogonal to a circuit board. | 07-18-2013 |
| 20130234821 | ELECTROMAGNETICALLY-COUNTERED TRANSFORMER SYSTEMS AND METHODS - The present invention relates to an electromagnetically-countered system including at least one wave source irradiating harmful electromagnetic waves and at least one counter unit emitting counter electromagnetic waves which are capable of countering the harmful waves by such counter waves. More particularly, the present invention relates to generic counter units of various electromagnetically-countered transformer systems and to various mechanisms for countering the harmful waves by the counter units by e.g., matching configurations of such counter units with those of the wave sources, matching shapes of the counter waves with shapes of the harmful waves, and the like. The present invention also relates to various methods of countering the harmful waves with the counter waves by such source matching or wave matching and various methods of providing such counter units as well as emitting the counter waves. The present invention also relates to various processes for providing such systems and their counter units. The present invention further relates to various electric and/or magnetic shields which may be used alone and/or in combination with such counter units to minimize irradiation of the harmful waves from the system. | 09-12-2013 |
| 20130314199 | TRANSFORMER - An electromagnetic shield includes a plurality of magnetic thin plates stacked on each other, a pair of metal plates sandwiching the plurality of magnetic thin plates, and a plurality of seat plates each connected to the pair of metal plates. The plurality of seat plates are disposed at positions where the total sum of a leakage flux interlinked with a region between mutually adjacent first and second seat plates among the plurality of seat plates is equal to zero. Preferably, a distance between the first and second seat plates is equal to a value which is an integral multiple of a half period of the distribution of the leakage flux. | 11-28-2013 |
| 20140085040 | POWER SUPPLY APPARATUS WITH FRINGING FLUX SHIELDING ELEMENT - A power supply apparatus includes a magnetic element, a casing, and a shielding element. The magnetic element includes a magnetic core assembly. A fringing flux is generated by the magnetic core assembly. The casing is partially disposed over the magnetic element. The shielding element is arranged between the magnetic element and the casing for preventing the fringing flux from passing through the casing. | 03-27-2014 |
| 20140085041 | REACTOR - A reactor includes a coil, a magnetosensitive element attached to a lead wire of the coil, a magnetic shielding plate that shields the magnetosensitive element from a magnetic field of the coil, and a case body in which the magnetic shielding plate, the magnetosensitive element and the coil are housed. In the reactor, the magnetosensitive element and the coil are covered with a resin containing a magnetic material in the case. | 03-27-2014 |
| 20140085042 | SHIELDED POWER COUPLING DEVICE - One or more techniques and/or systems described herein provide a shielded power coupling device, such as may be used to transfer electric power from a stator portion of a computed tomography (CT) apparatus to a rotor portion. The shielded power coupling device comprises a rotor portion and a stator portion, separated by an airgap, respectively comprising one or more windings and a core. The shielded power coupling device further comprises a fringe field mitigation element(s) (e.g., an electrically conductive wire) that is configured to carry an induced current that creates a magnetic field that mitigates, or substantially cancels, magnetic flux generated by current in the windings that escapes from the core near the core airgap. | 03-27-2014 |
| 20140253279 | COUPLED DISCRETE INDUCTOR WITH FLUX CONCENTRATION USING HIGH PERMEABLE MATERIAL - Some implementations provide a coupled inductor structure that includes a first discrete inductor configured to generate a magnetic field, a second discrete inductor, and a first ferromagnetic layer coupled to the first discrete inductor and the second discrete inductor. The first ferromagnetic layer is configured to concentrate the magnetic field generated by the first discrete inductor within the coupled inductor structure. In some implementations, the coupled inductor structure further includes a second ferromagnetic layer coupled to the first discrete inductor and the second discrete inductor. The second ferromagnetic layer is configured to concentrate the magnetic field generated by the first discrete inductor within the coupled inductor structure. In some implementations, the coupled inductor structure is a bifilar inductor structure. The first discrete inductor includes a first set of windings and the second discrete inductor includes a second set of windings. The first and second discrete inductors share a common core. | 09-11-2014 |
| 20150302976 | EFFECTIVE MAGNETIC SHIELD FOR ON-CHIP INDUCTIVE STRUCTURES - A magnetic shield for an inductor is disclosed that may substantially reduce unwanted magnetic coupling from other inductive circuitry. An inductive apparatus includes an inductor and a magnetic shield to shield the inductor from magnetic coupling effects. The magnetic shield includes an inductive ring formed from a plurality of turns surrounding the inductor. The magnetic shield may be used to reduce a magnetic coupling between the inductor and an inductive circuit element. Thus, the number of turns of the inductive ring may be based on the magnetic coupling between the inductor and the inductive circuit element. Further, a distance between the magnetic shield and the inductor may be based on the number of turns of the inductive ring. The distance between the magnetic shield and the inductor is to offset a magnetic coupling between the inductor and the magnetic shield. | 10-22-2015 |
| 20150310986 | Electromagnetic Force Differential Propulsion Device - The electromagnetic force differential propulsion device allows a change in the electrical power flowing into the device to directly change the force exerted by the device. The device unbalances a coiled wire's magnetic field by wrapping the wire around a spool acting as a very weak magnetic shield for part of its length and a strong magnetic shield for the remaining length. The weak magnetic shield hardly weakens the magnetic field in the spindle cavity it surrounds while the strong magnetic shield greatly weakens the magnetic field in its surrounded spindle cavity. The coiled wire is more strongly attracted to the strong magnetic field than the weak magnetic field and causes an unbalanced resultant force due to the fact that the spindle cavity (which is air) does not reciprocate magnetic attraction. This unbalanced attraction causes the wire to push on the spool causing the whole device to exert a force. | 10-29-2015 |
| 20150325362 | COIL MODULE - A coil module is provided which has been reduced in size and thickness by incorporating a material and a structure resistant to magnetic saturation. The coil module includes a magnetic shielding layer containing a magnetic material, and a spiral coil. The magnetic shielding layer has a plurality of magnetic resin layers containing magnetic particles, and at least a portion of the spiral coil is buried in a portion of the magnetic resin layers. This allows a reduction in size and thickness while achieving a heat dissipation effect by the magnetic resin layers. In addition, since magnetic resin layers resistant to magnetic saturation are provided, the coil inductance changes only slightly even in an environment where a strong magnetic field is applied, and thus stable communication can be provided. | 11-12-2015 |
| 20150371769 | STATIONARY INDUCTION DEVICE - A stationary induction device including a tank, a core which is housed in the tank, a winding which is housed in the tank and wound around the core, a plurality of metal magnets which are fixed on an inner wall of the tank and configured to form a magnetic shield for shielding a leakage flux generated from the winding, and at least one retaining plate which is joined to the inner wall of the tank and the plurality of metal magnets so as to fix the plurality of metal magnets on the inner wall of the tank. Among the plurality of metal magnets, the metal magnets adjacent to each other are connected to each other by one retaining plate only. | 12-24-2015 |
| 20160064141 | MAGNETICALLY DOPED ADHESIVE FOR ENHANCING MAGNETIC COUPLING - In some embodiments, an electronic device includes an electronic component that is at least partially encapsulated by an adhesive doped with soft magnetic material that functions as an EMI shield for the electronic component. In various embodiments, an electronic device includes a first magnetic component separated from a second magnetic component by a gap within which is positioned an adhesive doped with soft magnetic material. The doped adhesive is positioned in a magnetic path between the first and second magnetic components and aids in magnetically coupling the first and second magnetic components and/or guides magnetic flux between the first and second magnetic components. | 03-03-2016 |
| 20160086726 | Transformer - While the whole weight of magnetic shields provided in a tank of a transformer is reduced, eddy current loss by magnetic flux leaked from a winding is reduced. A transformer is configured using an iron core having an iron core leg and an iron core yoke, windings wound around the iron core leg, a tank having the iron core and the windings therein, and a first magnetic shield and second magnetic shields formed by laminating silicon steel sheets inside the tank. The first magnetic shield is arranged opposite to the windings, the second magnetic shields are arranged between the first magnetic shield and the tank, and the first magnetic shield and the second magnetic shields are fixed to the tank by different support members. | 03-24-2016 |
