| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 336084000 | WITH ELECTRIC AND/OR MAGNETIC SHIELDING MEANS | 48 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110006872 | MAGNETIC SHIELD LAYOUT, SEMICONDUCTOR DEVICE AND APPLICATION - Magnetic shield layout ( | 01-13-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110018676 | TRANSFORMER ASSEMBLY - The present invention relates to a transformer assembly ( | 01-27-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20090206976 | REACTOR SHIELD - A reactor shield including a plurality of closed loops of electrically conductive wires arranged around a reactor. | 08-20-2009 |
| 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 |
| 336084000 | Conductive | 21 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110006872 | MAGNETIC SHIELD LAYOUT, SEMICONDUCTOR DEVICE AND APPLICATION - Magnetic shield layout ( | 01-13-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110018676 | TRANSFORMER ASSEMBLY - The present invention relates to a transformer assembly ( | 01-27-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20090206976 | REACTOR SHIELD - A reactor shield including a plurality of closed loops of electrically conductive wires arranged around a reactor. | 08-20-2009 |
| 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 |
| 336084000 | Magnetic | 14 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110006872 | MAGNETIC SHIELD LAYOUT, SEMICONDUCTOR DEVICE AND APPLICATION - Magnetic shield layout ( | 01-13-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110018676 | TRANSFORMER ASSEMBLY - The present invention relates to a transformer assembly ( | 01-27-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20090206976 | REACTOR SHIELD - A reactor shield including a plurality of closed loops of electrically conductive wires arranged around a reactor. | 08-20-2009 |
| 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 |
