Coils Having Different Axis Or On Different Core Legs Patents (Class 336/184)
  • Patent number: 10902990
    Abstract: A coil component includes a body having a winding coil and a plurality of guide members therein. The guide members are spaced apart from each other along an outer periphery of the winding coil, and each of the guide members has an exposed surface exposed externally of the body. A method for manufacturing a coil component includes seating opposing ends of a winding coil on a support member of a frame having guide members restricting movement of the winding coil relative to the frame. A body is formed that embeds the winding coil and at least a portion of each of the guide members therein, and the guide members restrict movement of the winding coil during the forming of the body.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yun Suk Oh, Jin Mo Ahn
  • Patent number: 10827619
    Abstract: The present invention relates to a printed circuit board embedding a power die wherein interconnections between the power die and the printed circuit board are composed of micro/nano wires, the printed circuit board comprising a cavity wherein the power die is placed, and wherein the cavity is further filled with a dielectric fluid.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nicolas Degrenne, Stefan Mollov
  • Patent number: 10622138
    Abstract: A winding arrangement for an electric installation has an electric conductor and a plurality of cooling ducts. The electric conductor is coiled up forming several layers around an axis. Each cooling duct extends between a pair of adjacent layers of the coiled electric conductor in axial direction through the winding arrangement and in tangential direction not entirely around the axis. The cooling ducts of the plurality of cooling ducts are distributed among more than one pair of adjacent layers such that the winding arrangement is substantially cylindrical.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: April 14, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Eugenio De Santis, Jr., Joel Mendes, Antonio Pedro Silva, Stephan Voss
  • Patent number: 10505467
    Abstract: A converter station for the transmission of electrical power has a diode rectifier with a DC terminal and an AC terminal. At least one transformer is connected to the AC terminal. In order to render the converter station as compact as possible, the diode rectifier is arranged in an insulating material.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 10, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joerg Dorn, Dominik Ergin, Thomas Hammer, Hans-Joachim Knaak, Peter Menke, Roland Schuster
  • Patent number: 10468178
    Abstract: A stationary induction apparatus includes a core, a winding wound around the core such that the core serves as a central axis, and an annular electrostatic shield disposed adjacent to at least one of ends of the winding in a direction along the central axis. The electrostatic shield includes a conductor and a second insulating coating that coats the conductor. The electrostatic shield has a potential lower than a highest potential in the winding.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 5, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Soichiro Kainaga, Shigeyoshi Yoshida, Takahiro Umemoto, Takao Tsurimoto
  • Patent number: 10283259
    Abstract: A plurality of windings each including an electric wire portion and a first insulating coating that coats the electric wire portion. A plurality of electrostatic shields each including a conductor and a second insulating coating that coats the conductor. A stationary induction apparatus satisfies at least one positional relationship among: a relationship in which an outer peripheral end of the conductor in each of the electrostatic shields is located inside an outer peripheral end of the electric wire portion of an adjacent winding among the windings, the adjacent winding being adjacent to the electrostatic shield in the direction extending along the central axis; and a relationship in which an inner peripheral end of the conductor in each of the electrostatic shields is located outside an inner peripheral end of the electric wire portion of the adjacent winding.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 7, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Soichiro Kainaga, Takahiro Umemoto, Takao Tsurimoto
  • Patent number: 10285259
    Abstract: Disclosed herein are printed circuit boards with embedded solenoid filters through which signal traces pass to filter unwanted noise and electromagnetic interference. A printed circuit board comprises a least three layers, a solenoid embedded within the at least three layers, and at least one trace extending through the solenoid. The insertion loss characteristics of the solenoid filter can be tuned by modifying the number of turns in the solenoid(s) and the width of the solenoid(s). The solenoid filter may comprise multiple solenoids connected in series, with adjacent solenoids having opposite wind directions. Surface components may be included on the board to tune the insertion loss further.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 7, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Albert Wallash, John Contreras, Ronald G. Parkinen, Xinzhi Xing, Hui He
  • Patent number: 10090094
    Abstract: A transformer can include a flexible substrate having at least a first conductive layer and a dielectric layer. The transformer can further include an unbroken toroidal core of a magnetic material. The magnetic material can include material with a relative magnetic permeability greater than unity. The substrate can include a plurality of planar extensions arranged to provide respective windings encircling the core when the planar extensions are folded and attached back to another region of the substrate. Adjacent windings can be conductively isolated from each other. The flexible substrate can further include a second conductive layer separated from the first conductive layer by the dielectric layer. The first conductive layer and the second conductive layer can be coupled via a plurality of interconnects so that the respective windings are formed when the planar extensions are folded and attached back to the another region of the substrate.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 2, 2018
    Assignee: Analog Devices, Inc.
    Inventors: David Bolognia, Vikram Venkatadri
  • Patent number: 10062498
    Abstract: A composite magnetic component is provided. The composite magnetic component includes a magnetic flux-guiding unit, a first coil structure and a second coil structure. The first coil structure and the second coil structure are wound around a first winding portion and a second winding portion of the magnetic flux-guiding unit, respectively. A first magnetic flux results from the first coil structure and the magnetic flux-guiding unit. A second magnetic flux results from the second coil structure and the magnetic flux-guiding unit. The first magnetic flux is orthogonal to the second magnetic flux within the magnetic flux-guiding unit.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: August 28, 2018
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Patent number: 10020795
    Abstract: A common mode filter coupled to a protection device. In accordance with an embodiment, the common mode filter has first and second coils, each coil having a spiral shape, a central region, an exterior region, a first terminal, and a second terminal, wherein the first terminal of the first coil is formed in a first portion of the central region, the first terminal of the second coil is formed in a second portion of the central region, and wherein the central region is laterally bounded by the first and second coils and the exterior region is not surrounded by the first and second coils. The protection device has a first terminal coupled to the first terminal of the first coil and a second terminal coupled to the first terminal of the second coil.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 10, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Rong Liu, Umesh Sharma, Phillip Holland
  • Patent number: 9881730
    Abstract: A reactor includes an annular core, coils, a sensor detecting a state of the reactor, and a connector outputting signal from the sensor. Resin-molded bodies are provided around the annular core. The resin-molded body has bobbins for the respective coils and core covering portions formed integrally with each other. An exposed area where no resin covers the bottom of the core is formed in the lower face of the covering portions. A holder to fasten the connector is formed integrally with the upper portion of the covering portion. An assembly including the resin-molded bodies in which the annular core is embedded, and the coils wound around the bobbins are retained in a metal casing. A clearance is formed between the assembly and the casing, and a filler is filled in this clearance. The filler covers the exposed area of the core bottom.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: January 30, 2018
    Assignee: TAMURA CORPORATION
    Inventors: Kotaro Suzuki, Ryo Nakatsu, Naoki Inoue, Kensuke Maeno
  • Patent number: 9853562
    Abstract: A converter station for the transmission of electrical power has a diode rectifier with a DC terminal and an AC terminal. At least one transformer is connected to the AC terminal. In order to render the converter station as compact as possible, the diode rectifier is arranged in an insulating material.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: December 26, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joerg Dorn, Dominik Ergin, Thomas Hammer, Hans-Joachim Knaak, Peter Menke, Roland Schuster
  • Patent number: 9837202
    Abstract: Each of a plurality of electrostatic shields includes an insulator portion and a conductor portion. The conductor portion includes a flat portion formed in an annular shape and a pair of protruding portions. The insulator portion is provided with a first housing portion housing the flat portion and a pair of second housing portions each housing a corresponding one of the pair of protruding portions. Each of the pair of protruding portions includes: a protruding end portion located along an inner surface of a corresponding one of the pair of second housing portions, and a center portion located adjacent to the protruding end portion. In each of the pair of protruding portions, the protruding end portion and the center portion are electrically connected to each other and are equal in electric potential to each other.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 5, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Soichiro Kainaga, Takahiro Umemoto, Takao Tsurimoto
  • Patent number: 9755765
    Abstract: A communication system and a method of fabricating a communication system are described. The communication system includes a transmit antenna including two or more symmetric coils wound around a closed-loop magnetic transmitter core, the transmit antenna configured to transmit an outgoing signal of very low frequency (VLF) or ultra low frequency (ULF) energy. The communication system also includes a receive antenna including two or more coils formed from two or more wires wound around a closed-loop magnetic receiver core, the receive antenna configured to receive transmitted VLF or ULF energy as an incoming signal. The communication system also includes a processor to process the outgoing signal and the incoming signal.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: September 5, 2017
    Assignee: RAYTHEON COMPANY
    Inventors: Benjamin Dolgin, Steven Cotten, James C. Zellner
  • Patent number: 8988161
    Abstract: Various embodiments may provide a monolithic transformer for a radio frequency (RF) power amplifier module, such as a microwave frequency power amplifier module. The transformer may include a plurality of pairs of edge-coupled transmission lines, with individual pairs including first and second edge-coupled transmission lines. The first transmission lines may include first ends coupled with one another and second ends coupled with an input terminal of the transformer. The second transmission lines may include first ends coupled with the input terminal and second ends coupled with an output terminal of the transformer. The transformer may pass a communication signal from the input terminal to the output terminal, and provide a first impedance at the input terminal and a second impedance at the output terminal. The second impedance may be higher than the first impedance (e.g., by a factor of four).
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 24, 2015
    Assignee: TriQuint Semiconductor, Inc.
    Inventor: Charles F. Campbell
  • Patent number: 8970338
    Abstract: A distribution transformer having a slot-and-tab core frame assembly. The core frame (17) encloses a transformer core (11) having at least one phase and provides compression on the core yokes and end members of the transformer to bind the assembly together. First and second clamps (10, 24) of the core frame contain receiving slots (34) for the tabbed (18, 28), longitudinal side supports (20), creating an interlock when connected. For larger transformers, the tabbed side supports may be alternatively comprised of a subassembly of end plates, cams, and tabbed locking plates, encompassing a sturdy locking mechanism.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: March 3, 2015
    Assignee: ABB Technology AG
    Inventor: Charles W. Johnson
  • Patent number: 8922323
    Abstract: When an outer core that is to be mounted on a reactor is seen in plan, the outer core is a compact that has a plan-view shape in which a side of the outer core that is opposite to a facing side of the outer core, which faces the inner cores, has a smaller dimension in a width direction, which is parallel to a facing surface, than the facing side of the outer core. A method of manufacturing such an outer core includes a preparing step and a compacting step. In the preparing step, coated soft magnetic powder including multiple coated soft magnetic particles formed by coating soft magnetic particles with insulating coated films is prepared as raw-material powder of the outer core.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: December 30, 2014
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Masato Uozumi, Atsushi Sato, Kazushi Kusawake
  • Patent number: 8910372
    Abstract: An improved choke assembly for a power electronics device is provided. More specifically, a choke assembly with improved protection from environmental conditions such as dirt and water is provided. An improved choke assembly may include an insulative housing for an inductor coil that seals the inductor coil from the environment.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: December 16, 2014
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: John R. Brubaker, Lixiang Wei
  • Patent number: 8896404
    Abstract: There are provided a coil component and a method of manufacturing the same. The coil component includes a core; at least one bobbin coupled to the core and having a coil wound therearound; and a base having the core seated therein and including an external connection terminal, wherein one side of the core is seated in the bobbin and the other side thereof is exposed to the outside of the base.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Sun Won, Deuk Hoon Kim, Geun Young Park, Young Min Lee, Dae Young Hwang, Jong Hae Kim, Myeong Jeong Kim, Jeong Myeon Kim
  • Patent number: 8890519
    Abstract: A printed circuit in which, in going from one end to another, a same conductive line is wound successively: around the first winding axis to form at least one half-turn of a first coil, then around the second winding axis to form at least one half-turn of a second coil, then around the first winding axis to form at least one half-turn of a first coil, then around the second winding axis to form at least one half-turn of a second coil.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: November 18, 2014
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventor: Philippe Klein
  • Patent number: 8866575
    Abstract: A multi-coil choke for an AC power conditioner includes a magnetic core having first, second and third parallel legs. A first coil wrapped around the first leg terminates in first and second leads at respective ends. A second coil wrapped around the second leg terminates in first and second leads at respective ends. A third coil wrapped around the third leg terminates in first and second leads at respective ends. A fourth coil is formed from a proximal portion of the second lead of said first coil. The fourth coil is wrapped around a distal portion of the second lead of the third coil. A fifth coil is formed from a proximal portion of the second lead of the third coil. The fifth coil is wrapped around a distal portion of the second lead of the first coil. AC power conditioners using one or more such chokes are also disclosed.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: October 21, 2014
    Assignee: USES, Inc.
    Inventor: E. Brian Wohlforth
  • Patent number: 8864060
    Abstract: A coil component includes an air-core winding wire portion wound by a wire with a plurality of wound layers by alignment winding, a spiral shaped wound portion in which the wire wound in a spiral shape from an inner edge of an end surface toward an outer edge thereof along the end surface while in contact with the end surface on one side in the axis direction of the winding wire portion, a first lead portion extended and extracted outward from a winding first end point of the spiral shaped wound portion, and a second lead portion extended and extracted outward from a winding second end point at the outer circumference of the winding wire portion.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 21, 2014
    Assignee: Sumida Corporation
    Inventors: Satoru Yamada, Yoshiyuki Hatayama
  • Patent number: 8854172
    Abstract: An inductor and a transformer, each of which includes a first bobbin on which a first coil is wound and a second bobbin on which a second coil is wound, are provided. The first bobbin includes a first bobbin part on which the first coil is wound and a first support part provided at one end of the first bobbin part. The second bobbin includes a second bobbin part on which the second coil is wound and a second support part provided at one end of the second bobbin part. Another end of the first bobbin part is coupled to the second support part and another end of the second bobbin part is coupled to the first support part.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Deok Choi, Sun Mi Jung, Tae Sung Kim, Hyo Soon Choi
  • Patent number: 8854171
    Abstract: Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of a dual wound coil. The coil ends of a dual wound coil can be on a common side, simplifying wiring. The dual wound coil may be configured with a low resistance, reducing resistive losses.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: October 7, 2014
    Assignee: Electric Torque Machines Inc.
    Inventor: Thomas F. Janecek
  • Patent number: 8847719
    Abstract: A transformer includes a core having a first leg, a second leg and a third leg, a split primary winding including first turns about the first leg electrically coupled with second turns about the third leg, and a secondary winding about the second leg. Magnetic flux linking the first turns of the split primary winding and magnetic flux linking the second turns of the primary winding link the secondary winding.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: September 30, 2014
    Assignee: Cirrus Logic, Inc.
    Inventors: John L. Melanson, Mauro L. Gaetano
  • Patent number: 8813346
    Abstract: A coil-type electronic component has a coil inside or on the surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 26, 2014
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Hideki Ogawa, Atsushi Tanada, Hitoshi Matsuura, Kiyoshi Tanaka, Hiroshi Kishi, Kenji Kawano
  • Patent number: 8791782
    Abstract: A multi-coil choke for an AC power conditioner includes a magnetic core having first, second and third parallel legs. A first coil wrapped around the first leg terminates in first and second leads at respective ends. A second coil wrapped around the second leg terminates in first and second leads at respective ends. A third coil wrapped around the third leg terminates in first and second leads at respective ends. A fourth coil is formed from a proximal portion of the second lead of said first coil. The fourth coil is wrapped around a distal portion of the second lead of the third coil. A fifth coil is formed from a proximal portion of the second lead of the third coil. The fifth coil is wrapped around a distal portion of the second lead of the first coil. AC power conditioners using one or more such chokes are also disclosed.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: July 29, 2014
    Assignee: USES, Inc.
    Inventor: E. Brian Wohlforth
  • Patent number: 8789262
    Abstract: A method for manufacturing an inductor includes a mold device having a mold cavity, disposing a coil member above the mold cavity of the mold device, filling metallic particles into the mold cavity of the mold device, forcing the coil member into the metallic particles to form a base member, applying two conductive coating members onto the base member and electrically connecting to the terminals of the coil member respectively, and attaching two conductive coverings onto the conductive coating members respectively and electrically connecting to the conductive coating members respectively for allowing the inductors to be quickly manufactured in a mass production.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: July 29, 2014
    Assignee: Mag. Layers Scientific Technics Co., Ltd.
    Inventor: Chien Chih Liu
  • Patent number: 8773231
    Abstract: A controllable inductor system includes a multiphase inductor comprising a central winding, a first control winding, and a second control winding, and a control portion comprising a first control logic portion operative to receive a signal indicative of a current of the first control winding and a signal indicative of a current of the sum of the first control winding and the second control winding and modulate a first pulse width modulated signal to responsively control a first transistor connected to the first control winding, and a second control logic portion operative to receive the signal indicative of the current of the first control winding and a signal indicative of a current of the sum of the first control winding and the second control winding and modulate a second pulse width modulated signal to responsively control a second transistor connected to the second control winding.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Raytheon Company
    Inventors: Boris S. Jacobson, Edward Jung
  • Patent number: 8766759
    Abstract: A transformer comprises a circuit board, an iron core, a winding set and a plurality of magnetic conduction elements. The circuit board has a plurality of electric conduction holes connected via at least one power connection wire. The iron core is located on the circuit board and has a first winding section and a second winding section. The winding set is wound on the first winding section. Each magnetic conduction element has a connecting section located on the iron core and an input section and an output section inserted into the electric conduction holes. The output section of one magnetic conduction element is connected to the input section of another magnetic conduction element through the power connection wire, thereby the magnetic conduction elements and power connection wire form a magnetic conduction winding set which generates magnetic coupling with the winding set through the iron core.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: July 1, 2014
    Assignee: Zippy Technology Corp.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Tzung-Han Lee, Heng-Chia Chang
  • Patent number: 8749337
    Abstract: A method for manufacturing a conductive coil, the method comprising using a semiconductor fabrication process (e.g. TSV) to manufacture a coil, typically a planar spiral conductive coil.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: June 10, 2014
    Assignee: Maradin Technologies Ltd.
    Inventors: Adi Baram, Matan Naftali, Sharon Hornstein, Inbal Herer, Menashe Yehiel
  • Patent number: 8730000
    Abstract: Divided cores 11, 12 includes left and right leg portions and a yoke portion and formed by molding a yoke portion side core material within resin. The leg portions of the divided core are formed by tubular core mounting portions 41, 42. I-shaped leg portion side core materials 51-53 and spacers 6 are mounted in the tubular core mounting portions. A ring-shaped molded core 1 is formed by abutting and integrating the respective leg portions of two divided cores, and a coil 100 is wound around the molded core.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: May 20, 2014
    Assignee: Tamura Corporation
    Inventors: Kotaro Suzuki, Kensuke Maeno, Ryo Nakatsu
  • Patent number: 8707547
    Abstract: A lead-frameless power inductor and its fabrication method are disclosed. The power inductor comprises a lower substrate, a coil provided on the lower substrate, and an intermediate layer which encloses the coil, wherein the lower substrate can be a soft magnetic entrainer or a non-magnetic entrainer. The coil is made of an insulated wire, and the intermediate layer is a colloid consisting of magnetic powder. A method for fabricating the lead-frameless power inductor includes steps of preparing a lower substrate; forming a plurality of conducting metal layers on the lower substrate; forming a wire package on an upper surface of said lower substrate; coating a surface of said wire package with a magnetic powder; dividing the substrate into a plurality of granulated elements by cutting process; and forming the conducting metal layer on both sides of the element to form a surface mounting device.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: April 29, 2014
    Assignee: Inpaq Technology Co., Ltd.
    Inventor: Wei Chih Lee
  • Patent number: 8674802
    Abstract: A multi-winding inductor includes a first foil winding and a second foil winding. One end of the first foil winding extends from a first side of the core and wraps under the core to form a solder tab under the core. One end of the second foil winding extends from a second side of the core and wraps under the core to form another solder tab under the core. Respective portions of each solder tab are laterally adjacent under the magnetic core. A coupled inductor includes a magnetic core including a first and a second end magnetic element and a plurality of connecting magnetic elements disposed between and connecting the first and second end magnetic elements. A respective first and second single turn foil winding is wound at least partially around each connecting magnetic element. Each foil winding has two ends forming respective solder tabs.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 18, 2014
    Assignee: Volterra Semiconductor Corporation
    Inventor: Alexandr Ikriannikov
  • Patent number: 8614614
    Abstract: It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding (3) and at least one low voltage winding (2) concentrically assembled around a core column (1.2,1.3), the low voltage and high voltage windings (2,3) being electrically isolated from a solid material, a core window (20) being defined as a space between two core columns (1.2,1.3), the transformer comprising at least one electrical insulation sheet (4) assembled on at least a core window (20) of said transformer, the assembly of the electrical insulation sheet (4) being defined in the longitudinal direction (300) of the transformer. Such sheet (4) avoids the formation of spiral around the core by immersion water or conductive dust.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 24, 2013
    Assignee: Siemens Ltda.
    Inventors: Martin Alsina Navarro, Jose Carlos Medeiros, Eledilson Clayton Betiol, Marilucia Martinato, Renan Junqueira Dias, Jean Carlos da Silva
  • Patent number: 8601673
    Abstract: A method of producing an inductor with high inductance includes forming a removable polymer layer on a temporary carrier; forming a structure including a first coil, a second coil, and a dielectric layer on the removable polymer layer; forming a first magnetic glue layer on the removable polymer layer and the structure; removing the temporary carrier; and forming a second magnetic glue layer below the structure and the first magnetic glue layer.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: December 10, 2013
    Assignee: Cyntec Co., Ltd.
    Inventor: Shih-Hsien Tseng
  • Patent number: 8604899
    Abstract: An electrical transformer is disclosed which includes an enclosure; a magnetic core assembly arranged within the enclosure, the magnetic core assembly having a first core limb, a second core limb and a third core limb; and three coil assemblies having a first coil assembly, a second coil assembly, and a third coil assembly. At least two diaphragms are arranged within the enclosure, the diaphragms being essentially sealed to a first outermost coil of the first coil assembly, and arranged for guiding a cooling fluid in series through a first inner fluid duct, a second inner fluid duct, a third inner fluid duct and an extra-coil volume along outsides of third, second and first outermost coil coils of the third, second and first coil assemblies.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 10, 2013
    Assignee: Abb Research Ltd.
    Inventors: Bernardo Galletti, Arthouros Iordanidis, Jasmin Smajic, Martin Carlen
  • Patent number: 8587399
    Abstract: A split-core current transformer core comprises a U-core section in combination with a closing-bar core section that has extra length, width, and cross-sectional area as compared to the U-core section, shielding above and below secondary windings wound on bobbins that are mounted around leg portions of the U-core section and extending at least partially along a yoke portion of the core that joins the leg portions of the core, unitary construction and assemblage that accommodates calibration of output signals after assembly of the components in a base module and cover module that is hinged to the base module and has squeeze latches formed in a unitary manner with the cover housing such that they do not require assembly and do not protrude outwardly from adjacent surfaces in either open or closed mode, and other features that minimize magnetic reluctance and increase clearance and creepage distances.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 19, 2013
    Assignee: Continental Control Systems, LLC
    Inventors: Nathaniel Wood Crutcher, Gerald Anthony Hannam, Samuel F. E. Davenport
  • Patent number: 8558651
    Abstract: A core fixing member including: a core fixing part that has a plate-like shape and is to be fixed to a core; a case fixing part that has a plate-like shape and is to be fixed to a case; and at least one an arm part connecting the case fixing part with the core fixing part, and wherein the core fixing part and the case fixing part are arranged in a same plane, and the at least one arm part is formed in a shape of a letter ‘U’, and one end of the at least one arm part is connected to the core fixing part and the other end of the at least one arm part is connected to the case fixing part.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: October 15, 2013
    Assignee: Tamura Corporation
    Inventor: Kotaro Suzuki
  • Publication number: 20130249675
    Abstract: There is described a device (100) for communicating with RFID-tags, the device (100) comprising (a) an antenna unit comprising a first antenna (110; 200) and a second antenna (120; 200), and (b) a controller (130) connected to the antenna unit. The controller (130) is adapted to sequentially feed different polling signals to the antenna unit such that corresponding signals are individually and simultaneously radiated by each of the first antenna (110; 200) and second antenna (120; 200). There is also described a home appliance comprising the aforementioned device (100). Furthermore, there is described a method for communicating with RFID-tags by an antenna unit comprising a first antenna (110; 200) and a second antenna (120; 200). The described method comprises sequentially feeding different polling signals to the antenna unit such that corresponding signals are individually radiated by each of the first antenna (110; 200) and second antenna (120; 200).
    Type: Application
    Filed: March 18, 2013
    Publication date: September 26, 2013
    Applicant: NXP B.V.
    Inventors: Bram van den Berge, Marc van Bakel, Oswald Moonen
  • Patent number: 8539666
    Abstract: A method is for making an electrical inductor. The method includes forming a first subunit having a sacrificial substrate, and an electrically conductive layer defining the electrical inductor and including a first metal on the sacrificial substrate. The method includes forming a second subunit having a dielectric layer and an electrically conductive layer thereon defining electrical inductor terminals and having the first metal, and coating a second metal onto the first metal of one of the first and second subunits. The method includes aligning the first and second subunits together, heating and pressing the aligned first and second subunits to form an intermetallic compound of the first and second metals bonding adjacent metal portions together, and removing the sacrificial substrate.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: September 24, 2013
    Assignee: Harris Corporation
    Inventors: Michael Raymond Weatherspoon, Louis Joseph Rendek, Jr., Lawrence Wayne Shacklette, Robert Patrick Maloney, David M. Smith
  • Patent number: 8416050
    Abstract: Two conducting wires are used in one embodiment of an inductor. Opposite ends of each of the conducting wires are connected to leader lines (terminals) shared by the conducting wires. Each of the conducting wires is wound to make half a round of an annular or ring-like magnetic substance. One of the conducting wires is wound around a lower half area of the magnetic substance to form one winding while the other conducting wire is wound around an upper half area of the magnetic substance to form another winding. In this manner, the distance between the leader lines can be increased to eliminate parasitic capacitance between the leader lines. The magnetic fluxes generated by current flowing in the two windings are in the same direction. Thus, it is possible to provide an inductor whose total parasitic capacitance is reduced. In other embodiments, additional conducting wires are used.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: April 9, 2013
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Kazuaki Mino
  • Patent number: 8407883
    Abstract: A damascene process is utilized to fabricate the segmented magnetic core elements of an integrated circuit inductor structure. The magnetic core is electroplated from a seed layer that is conformal with a permanent dielectric mold that results in sidewall plating defining an easy magnetic axis. The hard axis runs parallel to the longitudinal axis of the core and the inductor coils are orthogonal to the core's longitudinal axis. The magnetic field generated by the inductor coils is, therefore, parallel and self-aligned to the hard magnetic axis. The easy axis is enhanced by electroplating in an applied magnetic field parallel to the easy axis.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: April 2, 2013
    Assignee: National Semiconductor Corporation
    Inventors: Peter Smeys, Peter Johnson, Andrei Papou
  • Patent number: 8400245
    Abstract: Magnetic components including pre-formed clips are described that are more amenable to production on a miniaturized scale. Discrete core pieces can be assembled with pre-formed coils and physically gapped from one another with more efficient manufacturing techniques.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 19, 2013
    Assignee: Cooper Technologies Company
    Inventors: Yipeng Yan, Robert James Bogert, Guo Ouyang, Zhigang Cheng
  • Patent number: 8373532
    Abstract: In the winding wire at the winding completion end side, two wires are piled up vertically and wound together from the inner circumferential side towards the outer circumferential side. The winding wire at the winding start end side that has remained on the inner circumferential side is drawn forth from the inner circumferential side to the outer circumferential side so as to form a curve along the flat surface of the coil. In the crossing portions of the winding wire at the winding completion end side and the winding wire at the winding start end side, the two wires of each winding wire are superimposed and caused to cross each other in a state in which the wires are laid down transversely.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 12, 2013
    Assignee: Sumida Corporation
    Inventors: Shuichi Kikuchi, Fumihito Meguro, Yoshiyuki Hatayama
  • Patent number: 8354910
    Abstract: A coil block and an electronic device using the same are provided. The coil block includes a first coil, a second coil, a core having an intermediate layer for separating the first coil and the second coil from each other, and a shield for shielding the first coil, the second coil, and the intermediate layer, wherein the first coil and the second coil have the same winding direction. According to the coil block and the electronic device, the filtering can be performed without any inductance offset even if the PWM signal having the inversed phase or the same phase is inputted. Also, since two windings can be wound on to one core using a common coil, the cost and the size of the coil block can be reduced.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: January 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-eun Park, Dae-kyoung Noh, Sung-woo Kim
  • Patent number: 8307534
    Abstract: A method of forming an encapsulated coupled coil arrangement. The method includes coupling a first lead of a first coil to a second lead of an electrical circuit device, by soldering or infusion, using a superconductive jointing alloy; and encapsulating the first coil, the electrical circuit device and the jointed leads of the first coil and the electrical circuit device in an encapsulation material. The jointing alloy has a melting point higher than a highest temperature experienced by the encapsulation material having the encapsulation process.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 13, 2012
    Assignee: Siemens Plc
    Inventors: Graham Hutton, M'Hamed Lakrimi, Adrian Mark Thomas
  • Patent number: 8310330
    Abstract: A dry-type transformer includes at least one high-voltage winding and one low-voltage winding. The windings are operatively connected to one another by an electromagnetic field, and each winding is constructed from winding conductors, wherein the high-voltage winding and the low-voltage winding have a defined distance from one another, and spacers are arranged between the windings and maintain the defined distance.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 13, 2012
    Assignee: ABB Technology AG
    Inventors: Charles W. Johnson, Jan Leander, Karel Bilek, Benjamin Weber
  • Patent number: 8305183
    Abstract: This invention relates to a transformer (1) for multi-output power supplies such as those commonly found in electronic equipment. The transformer comprises a magnetic core (3) and a plurality of windings (5, 7, 9) at least some of which are fractional windings, arranged about the magnetic core. The transformer comprises a dual transformer structure with a pair of transformers, a main transformer (11) and an auxiliary transformer (13). In a preferred embodiment, the main transformer and the auxiliary transformer are connected together. In this way, readily available magnetic components may be used in the construction of the transformer and the simple construction allows for a large cross-sectional area of transformer to be deployed so that reduced turn counts of windings may be used.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 6, 2012
    Assignee: Texas Instruments (Cork) Limited
    Inventor: George Young
  • Patent number: 8302287
    Abstract: A multilayer inductor includes a bottom magnetic layer having an external conductive pattern formed on a bottom surface thereof for connection to a substrate such as a printed circuit board. The bottom external conductive pattern includes signal/power contacts and first and second inductor electrodes. A top magnetic layer includes a top external conductive pattern having signal/power contacts and inductor electrode contacts. An inductor conductive pattern formed on the top surfaces of intermediate magnetic layers disposed between the top and bottom magnetic layers are electrically coupled to each other by means of through holes to form a spiral inductor element.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: November 6, 2012
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventors: Jun Lu, François Hébert