Winding Formed Of Plural Coils (series Or Parallel) Patents (Class 336/180)
  • Patent number: 10910147
    Abstract: A reactor including: a coil including a winding portion formed by winding a winding wire; and a magnetic core that forms a closed magnetic circuit constituted by an inner core portion located inside the winding portion and an outer core portion located outside the winding portion. The reactor further includes an inner resin portion that fills a gap between the inner circumferential surface of the winding portion and the outer circumferential surface of the inner core portion, and when a side, of the outer core portion, that faces the inner core portion is defined as an inner side, and the opposite side is defined as an outer side, the outer core portion is provided with a through hole that is open to both the inner side and the outer side, and the through hole is filled with a portion of the inner resin portion.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 2, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Shinichiro Yamamoto, Takashi Misaki, Seiji Shitama, Tatsuo Hirabayashi
  • Patent number: 10840005
    Abstract: A low profile high current composite transformer is disclosed. Some embodiments of the transformer include a first conductive winding having a first start lead, a first finish lead, a first plurality of winding turns, and a first hollow core; a second conductive winding having a second start lead, a second finish lead, a second plurality of turns, and a second hollow core; and a soft magnetic composite compressed surrounding the first and second windings. The soft magnetic composite with distributed gap provides for a near linear saturation curve.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: November 17, 2020
    Assignee: Vishay Dale Electronics, LLC
    Inventor: Darek Blow
  • Patent number: 10790081
    Abstract: Three-phase interleaved LLC and CLLC resonant converters, with integrated magnetics, are described. In various examples, the primary sides of the phases in the converters rely upon a half-bridge configuration and include resonant networks coupled to each other in delta-connected or common Y-node configurations. The secondary sides of the phases can rely upon a full-bridge configurations and are coupled in parallel. In one example, the transformers of the phases in the converters are integrated into one magnetic core. By changing the interleaving structure between the primary and secondary windings in the transformers, resonant inductors of the phases can also be integrated into the same magnetic core. A multi-layer PCB can be used as the windings for the integrated magnetics.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: September 29, 2020
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Chao Fei, Bin Li, Fred C. Lee, Qiang Li, Hongfei Wu
  • Patent number: 10743377
    Abstract: Disclosed are induction heating cells comprising tensioning members with non-magnetic metal cores. Also disclosed are methods of operating such cells, for example, to process composite parts. The non-magnetic metal cores of the tensioning members provide excellent tensile strength. Furthermore, the non-magnetic metal cores allow forming long tensioning members leading to large induction heating cells for processing large composite parts, such aircraft fuselage parts, wing parts, and the like. The diameter of these non-magnetic metal cores is less than the induction heating threshold for magnetic fields used during operation of the cells, which ensures limited or no interaction of the cores with the magnetic fields. The cores can be arranged into a tensioning member extending through and compressing the die of an induction heating cell. When multiple cores are used, these cores are electrically insulated from each other, e.g., using an insulating shell or spacing these cores away from each other.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: August 11, 2020
    Assignee: The Boeing Company
    Inventors: Marc R. Matsen, William C. Dykstra, Gregory A. Foltz, Lee C. Firth
  • Patent number: 10643783
    Abstract: A technology capable of setting a leakage inductance to a predetermined value and enabling miniaturization is provided. In a transformer including a primary coil and a secondary coil which are coaxially provided, the primary coil includes a first primary coil portion and a second primary coil portion in series, the secondary coil includes a first secondary coil portion and a second secondary coil portion in series, the second primary coil portion and the second secondary coil portion are provided outside the first primary coil portion and the first secondary coil portion, and a degree of coupling between the second primary coil portion and the second secondary coil portion is set to be lower than a degree of coupling between the first primary coil portion and the first secondary coil portion.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 5, 2020
    Assignees: OMRON Corporation, Advanced Power Technology Corporation
    Inventors: Yoshihiko Yamaguchi, Makoto Ohashi, Masayuki Suetomi, Tatsumi Yamamoto
  • Patent number: 10622136
    Abstract: A balanced-to-unbalanced (balun) transformer may include two metal layers on a substrate, a first winding following a first winding path, and a second winding following a second winding path, where each winding is formed in one or more of the two metal layers. The winding paths may include winding segments each disposed around a central axis of the balun transformer, where connectors join adjacent winding segments such that the winding paths are continuous between ends of the windings. The second winding path may be interwoven with, but independent from, the first winding path to form a resultant pattern that is substantially symmetrical. The second winding may include a number, n, of sub-windings, where n>1 such that a resultant number of winding segments of the second winding is greater than a resultant number of winding segments of the first winding by a factor of n.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 14, 2020
    Assignee: ARM LTD
    Inventors: Neil Leslie Calanca, Jr., Douglas Robl
  • Patent number: 10593464
    Abstract: A semiconductor element includes a first coil substantially located at a first plane; a second coil substantially located at the first plane; a connecting section that connects the first coil and the second coil; a third coil substantially located at a second plane different from the first plane; and a fourth coil substantially located at the second plane. The third coil and the first coil are connected through a through structure, and the fourth coil and the second coil are connected through a through structure. The third coil and the fourth are not directly connected.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: March 17, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Hsiao-Tsung Yen, Cheng-Wei Luo, Yuh-Sheng Jean, Ta-Hsun Yeh
  • Patent number: 10535460
    Abstract: Provided is a reactor with enhanced strength. The reactor includes a coil, a magnetic core, an interposed member interposed between the coil and the magnetic core, and a resin mold portion. The interposed member includes a frame portion that has a first through hole, and a plate-shaped portion. The resin mold portion includes an interposed resin portion that is formed by a constituent resin of the resin mold portion being filled inside the first through hole, an inner side resin portion is formed by the constituent resin being filled inside a portion of a coil interior space, and an outer side resin portion. The plate-shaped portion includes an interposed wall portion, and a second through hole that is provided locally in a portion other than the interposed wall portion, and inside of which the constituent resin is filled.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: January 14, 2020
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Tatsuo Hirabayashi, Takashi Misaki, Seiji Shitama, Shinichiro Yamamoto
  • Patent number: 10490328
    Abstract: An array of rolled-up power inductors for on-chip applications comprises at least two rolled-up power inductors connected in series and formed from a stack of multilayer sheets. The array includes a first rolled-up power inductor comprising a first multilayer sheet in a rolled configuration about a first longitudinal axis and second rolled-up power inductor comprising a second multilayer sheet in a rolled configuration about a second longitudinal axis. The first and second rolled-up power inductors are laterally spaced apart. The first multilayer sheet comprises a first patterned conductive layer on a first strain-relieved layer, and the second multilayer sheet comprises a second patterned conductive layer on a second strain-relieved layer. Prior to roll-up of the second and first multilayer sheets, the second multilayer sheet is disposed on the first multilayer sheet, and a through-thickness first via connects the second patterned conductive layer with the first patterned conductive layer.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: November 26, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Xiuling Li, Wen Huang
  • Patent number: 10438739
    Abstract: A transformer includes a magnetic core assembly including a cylindrical bobbin around which transformer windings are wrapped. Primary transformer windings are wrapped around the cylindrical bobbin of the magnetic core assembly with additional primary transformer windings that are extended to come in contact with one or more external surfaces of the magnetic core assembly. Secondary transformer windings are wrapped around the cylindrical bobbin of the magnetic core assembly with additional secondary transformer windings that are extended to come in contact with the one or more external surfaces of the magnetic core assembly.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: October 8, 2019
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Masanori Ishigaki, Jongwon Shin
  • Patent number: 10424434
    Abstract: A winding arrangement for inductive components includes a first winding section comprising at least one first winding, the at least one first winding comprising at least two electrically isolated parallel flat band conductors being configured as a first flat band stack, a second winding section comprising at least one second winding, the at least one second winding comprising at least two electrically isolated parallel flat band conductors being configured as a second flat band stack. The first ends of the flat band conductors of the first winding section are cross connected in a cross connection to first ends of the flat band conductors of the second winding section such that a first current flow stacking sequence in the first flat band stack is reversed to a second current flow stacking sequence in the second flat band stack.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: September 24, 2019
    Inventor: Franc Zajc
  • Patent number: 10381146
    Abstract: An electronic component includes a core, a first outer electrode, a second outer electrode, one or more third outer electrodes, and a wire electrically connecting the first outer electrode, the third electrodes, and the second outer electrode in series in that order. The wire forms a first inductor by being wound on the core between the first outer electrode and one of the third electrodes, and also forms a second inductor by being wound on the core between one of the third outer electrodes and the second outer electrode.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: August 13, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Sunao Noya
  • Patent number: 10340074
    Abstract: A transformer comprises a first core, a second core, a plurality of electrodes, an inner winding and an outer winding. The first core has a central hole. The second core is disposed in the central hole. The second core has two flanges and a pillar located between the two flanges. The inner winding is wound around the pillar. A first winding end of the inner winding is electrically connected to one of the electrodes. The inner winding comprises a first wire and a first insulating layer covering the first wire. The outer winding is wound around the inner winding. A second winding end of the outer winding is electrically connected to one of the electrodes. The outer winding comprises a second wire and a second insulating layer covering the second wire. Second thickness of the second insulating layer is larger than first thickness of the first insulating layer.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 2, 2019
    Assignee: CYNTEC CO., LTD.
    Inventors: Kuan-Yu Chiu, Chu-Keng Lin, Hsieh-Shen Hsieh
  • Patent number: 10333358
    Abstract: A receiving antenna of a wireless power receiving device wirelessly charging electric power according to an embodiment of the present invention includes a substrate, a first soft magnetic layer stacked on the substrate, and including a soft magnetic material, and a receiving coil configured to receive electromagnetic energy emitted from a wireless power transmission device, and including a first coil layer wound in parallel with the soft magnetic layer, and a second coil layer electrically connected to the first coil layer and wound in parallel with the first coil layer, and a current direction of the first coil layer is opposite to a current direction of the second coil layer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 25, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seok Bae, Yu Seon Kim, Sang Hak Lee, Don Chul Choi, Soon Young Hyun
  • Patent number: 10262789
    Abstract: A transformer is capable of suppressing the output voltage difference, and a switched-mode power supply apparatus uses the transformer. A transformer has a core; a primary winding provided in the core; a gap provided in the core at a location where the primary winding is provided; and at least two secondary windings, provided in the core and spaced apart from both sides of the primary winding as well as the gap at an equal distance in a winding axis direction of the primary winding. A switched-mode power supply apparatus has the transformer; a switching element connected to the primary winding of the transformer; and a control circuit configured to control the switching element.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: April 16, 2019
    Assignee: TAMURA CORPORATION
    Inventor: Hiroo Ogawa
  • Patent number: 10249430
    Abstract: A transformer being capable of reducing cross regulation even in a case where the load is unbalanced and a switched-mode power supply apparatus using the transformer are provided. A transformer T has a core; a primary winding provided in the core; at least two secondary windings provided in the core around a winding axis which is the same as a winding axis of the primary winding; and at least two auxiliary windings provided in the core around a winding axis which is the same as the winding axis of the primary winding; respectively neighboring the secondary windings; and connected in parallel to each other. A switched-mode power supply apparatus has the transformer T; a switching element connected to the primary winding of the transformer T; and a control circuit configured to control the switching element.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: April 2, 2019
    Assignee: TAMURA CORPORATION
    Inventor: Hiroo Ogawa
  • Patent number: 10225934
    Abstract: A circuit board (01), including at least two electrically conductive layers (02) arranged one above the other and at least one dielectric layer (03), which is arranged between adjacent electrically conductive layers (02), is provided. The circuit board (01) is characterized in particular in that the plate has at least two magnetically conductive layers (05), wherein each magnetically conductive layer (05) is arranged at least indirectly adjacent to an electrically conductive layer (02), and that the circuit board also has vertical recesses for accommodating magnetic vias (08) for connecting the magnetically conductive layers (05) in a specific manner. A method for producing such a circuit board (01) is provided.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: March 5, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 10217555
    Abstract: For reducing volume requirements and magnetic flux leakage, a compact inductor includes a first planar core with a first core thickness along a first axis orthogonal to a plane of the first planar core. In addition, the inductor includes a second planar core disposed parallel to the first planar core with a second core thickness along the first axis. The inductor further includes a plurality of electrical windings disposed between and adjacent to an inside plane of the first planar core and an inside plane of the second planar core. The electrical windings may include insulated electrical wires. No magnetic teeth may be disposed between the first planar core and the second planar core. The first axis is parallel to a magnetic axis of each electrical winding.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 26, 2019
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Xikai Sun, Wei Qian, Shaofeng Zhang, Haihui Lu, Lixiang Wei, Yuan Xiao, Jiangang Hu, Richard A. Lukaszewski
  • Patent number: 10217559
    Abstract: A power factor correction (PFC) power converter, particularly of a multiphase totem-pole or other topology presenting a switching bridge that can potentially provide bi-directional power transfer control, reduces a nominal switching frequency and achieves zero voltage switching over an increased portion of a half line cycle by providing positive or inverse coupling of inductors in an inductor structure that can be formed of a multi-layer printed circuit board such that at least three different inductances are presented during each half line cycle period; allowing increased switching frequency and simplifying EMI filtering arrangements. Parasitic capacitances can be balanced with additional coupled windings to reduce differential mode and common mode noise. The PFC power converter is particularly applicable to provide bi-directional power control from an on-board battery charger in an electrically powered vehicle.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 26, 2019
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Yuchen Yang, Mingkai Mu, Fred C. Lee, Qiang Li
  • Patent number: 10141101
    Abstract: A transformer being capable of reducing cross regulation even in a case where the load is unbalanced and a switched-mode power supply apparatus using the transformer are provided. A transformer T has a core; a primary winding provided in the core; at least two secondary windings provided in the core around a winding axis which is the same as a winding axis of the primary winding; and at least two auxiliary windings provided in the core around a winding axis which is the same as the winding axis of the primary winding; respectively neighboring the secondary windings; and connected in parallel to each other. A switched-mode power supply apparatus has the transformer T; a switching element connected to the primary winding of the transformer T; and a control circuit configured to control the switching element.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 27, 2018
    Assignee: Tamura Corporation
    Inventor: Hiroo Ogawa
  • Patent number: 10049815
    Abstract: A 3D nested transformer includes a substrate having a set of through substrate vias daisy chained together with a set of traces. At least some of the through substrate vias have first and second conductive regions. The set of traces also includes a first set of traces coupling together at least some of the first conductive regions of the through substrate vias, and a second set of traces coupling together at least some of the second conductive regions of the through substrate vias.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 14, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Daeik Daniel Kim, Jonghae Kim, Chengjie Zuo, Mario Francisco Velez, Changhan Hobie Yun
  • Patent number: 10038420
    Abstract: A first coil element includes a first loop-shaped conductor and a second loop-shaped conductor. A second coil element includes a third loop-shaped conductor and a fourth loop-shaped conductor. The first loop-shaped conductor and the second loop-shaped conductor are sandwiched in a stacking direction between the third loop-shaped conductor and the fourth loop-shaped conductor. A conductive pattern which is a portion of the first loop-shaped conductor and a conductive pattern which is a portion of the second loop-shaped conductor are connected in parallel. Then, each of a conductive pattern which is a remaining portion of the first loop-shaped conductor and a conductive pattern which is a remaining portion of the second loop-shaped conductor is connected in series with the parallel circuit.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 31, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kenichi Ishizuka
  • Patent number: 9997950
    Abstract: A receiving antenna of a wireless power receiving device wirelessly charging electric power according to an embodiment of the present invention includes a substrate, a first soft magnetic layer stacked on the substrate, and including a soft magnetic material, and a receiving coil configured to receive electromagnetic energy emitted from a wireless power transmission device, and including a first coil layer wound in parallel with the soft magnetic layer, and a second coil layer electrically connected to the first coil layer and wound in parallel with the first coil layer, and a current direction of the first coil layer is opposite to a current direction of the second coil layer.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: June 12, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seok Bae, Yu Seon Kim, Sang Hak Lee, Don Chul Choi, Soon Young Hyun
  • Patent number: 9966186
    Abstract: Integrated circuits and coupled inductors with isotropic magnetic cores, and methods for fabricating integrated circuits and coupled inductors with isotropic magnetic cores are provided. In an embodiment, a coupled inductor includes a first inductor coil arranged around a coil center and a second inductor coil arranged around the coil center. The second inductor coil is interleaved with the first inductor coil, and the first and second inductor coils form an interleaved inductor coil. The coupled inductor further includes an isotropic magnetic core surrounding a portion of the interleaved inductor coil and passing through the coil center.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 8, 2018
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Lulu Peng, Donald Ray Disney
  • Patent number: 9711271
    Abstract: A planar transformer is provided, which comprises a plate-shaped conductor substrate with integrated primary winding, secondary winding and coupling winding. The conductor substrate has pairs of recesses, and a respective two-part ferromagnetic core having yoke legs is inserted through each pair of recesses. One leg of each core is surrounded by the primary winding or the secondary winding, while the coupling winding is looped around the remaining legs of the cores. At least a minimum total isolation separation distance made up of partial isolation separation distances between the coupling winding and adjacent yoke legs or adjacent windings is maintained for electrical isolation between the primary winding and the secondary winding.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: July 18, 2017
    Assignee: PHOENIX CONTACT GMBH & CO. KG
    Inventor: Joerg Blanke
  • Patent number: 9666354
    Abstract: A transformer includes a primary winding unit, a secondary winding unit and a magnetic core. The primary winding unit includes a first input primary winding part and a first shielding winding part. The first input primary winding part is electrically connected to at least one switch component, and the first input primary winding part is electrically connected to the first shielding winding part. The secondary winding unit is inductively coupled to the primary winding unit, and the first shielding part is disposed between the first input primary winding part and the secondary winding part. Then, the primary winding unit and the secondary winding unit are assembled to the magnetic core.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 30, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Zhuang Zuo, Jian Zhou, De-Zhi Jiao
  • Patent number: 9653206
    Abstract: Systems, methods and apparatus for a wireless power transfer are disclosed. In one aspect a wireless power transfer apparatus is provided. The apparatus includes a casing. The apparatus further includes an electrical component housed within the casing. The apparatus further includes a sheath housed within the casing. The apparatus further includes a conductive filament housed within the sheath. The electrical component is electrically connected with the conductive filament. The casing is filled with a settable fluid bound with the sheath to form a structural matrix.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 16, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Nicholas A Keeling, Edward Van Boheemen, Michael Kissin, Jonathan Beaver
  • Patent number: 9601263
    Abstract: Systems, methods and apparatus for a wireless power transfer are disclosed. In one aspect a wireless power transfer apparatus is provided. The apparatus includes a casing. The apparatus further includes an electrical component housed within the casing. The apparatus further includes a sheath housed within the casing. The apparatus further includes a conductive filament housed within the sheath. The electrical component is electrically connected with the conductive filament. The casing is filled with a settable fluid bound with the sheath to form a structural matrix.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Nicholas A Keeling, Edward Van Boheemen, Michael Kissin, Jonathan Beaver
  • Patent number: 9551805
    Abstract: An inductive wireless power device comprises a transmitter configured to generate an electromagnetic field to a coupling region for wireless power transfer to a receiver, and control logic configured to determine a coupling coefficient of the wireless power transfer when the receiver is within the coupling region. The control logic also determines a presence of a foreign object within the coupling region responsive to a comparison of the determined coupling coefficient and an expected coupling coefficient for the wireless power transfer. An inductive wireless power device comprises a receiver configured to couple with an electromagnetic field in a coupling region for inductive wireless power transfer from a transmitter. The receiver is configured to alter a wireless power transfer characteristic of the transmitter for a determination of a presence of a foreign object within the coupling region responsive to a determination of a coupling coefficient of the wireless power transfer.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 24, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventor: Manjit Singh
  • Patent number: 9502168
    Abstract: In one embodiment, an integrated circuit is described. The integrated circuit includes a substrate, a dielectric stack, a first inductor and a second inductor. The dielectric stack may be formed above the substrate and includes first and second layers. The first inductor may be formed in both the first and second layers. The second inductor may also be formed in the first and second layers with a substantial portion of the first inductor structure overlaps with the second inductor structure.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 22, 2016
    Assignee: Altera Corporation
    Inventors: Chun Lee Ler, Shuxian Chen
  • Patent number: 9408298
    Abstract: A flexible circuit current measuring apparatus includes a flexible substrate member having a top side and a bottom side, a plurality of first conductive traces disposed on the top side of the flexible substrate member and spaced along a length of the flexible substrate member, and a plurality of second conductive traces disposed on the bottom side of the flexible substrate member and spaced along the length of the flexible substrate member. The first conductive traces and the second conducive traces are electrically connected to one another to form a serpentine pattern having a number of windings about and along the flexible substrate member, and the current measuring apparatus is structured to be wrapped around a conductor for measuring a current carried by the conductor.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: August 2, 2016
    Assignee: EATON CORPORATION
    Inventors: Robert Frederick Brooks, Theodore J. Miller
  • Patent number: 9385561
    Abstract: A system for efficiently charging a target device such as a power toothbrush, when placed in a charging receptacle such as a cup connected to a source of electrical power. A plurality of steering coils are arranged around the primary charging coil in the charging receptacle. A control circuit changes the magnetic field phase pattern of the steering coils relative to the phase of magnetic field of the primary coil until the maximum power transfer between the charging receptacle and the target device is determined. Charging of the target device occurs at the maximum power transfer rate.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 5, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Thomas Jackson Sayles
  • Patent number: 9378885
    Abstract: A low cost, reduced form factor, high performance electronic device for use in electronic circuits and methods. In one exemplary embodiment, the device includes a unitary header assembly construction that ensures device coplanarity and also includes vertically oriented terminal pins. The device utilizes preconfigured flat coil windings that are disposed directly within a planar core. The flat coil windings further include features that are configured to mate with the header assembly terminal pins which substantially simplify the manufacturing process. Methods for manufacturing the device are also disclosed.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 28, 2016
    Assignee: Pulse Electronics, Inc.
    Inventors: Ma Hongzhong, Robert Lu
  • Patent number: 9330837
    Abstract: An energy transfer assembly includes first and second windings wound around a bobbin. The first winding has a first number of layers proximate to a first end and a second number of layers proximate to a second end of the bobbin. The second winding has a third number of layers proximate to the first end and a fourth number of layers proximate to the second end. At least a portion of one of the first and second windings overlaps at least a portion of the other one of the first and second windings. A degree of overlap between the first and second windings is non-uniform. An isolation barrier is between the first and second windings and around the bobbin. A distance between the isolation barrier and an axis of the bobbin varies along the length of the bobbin.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: May 3, 2016
    Assignee: Power Integrations, Inc.
    Inventors: Jason E. Cuadra, John R. Estabrooks, Raymond K. Orr
  • Patent number: 9305695
    Abstract: A current-compensated choke features several current paths and includes several windings that are connected in parallel and wound around a common core. The windings preferably are alternately wound on the core in such a way that windings of a common current path are not arranged directly one on top of another.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 5, 2016
    Assignee: EPCOS AG
    Inventors: Manfred Karasek, Markus Straub
  • Patent number: 9257226
    Abstract: Rotational intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. The present disclosure is particularly directed to rotary transformers incorporating flex circuits that are suitable for use in rotational IVUS systems. In one embodiment, a rotary transformer for a rotational IVUS device includes: a rotational component and a stationary component. At least one of the rotational and stationary components includes a core formed of a magnetically conductive material and a flex circuit coupled to the core. In some instances, the flex circuit is coupled to the core such that a coil portion of the flex circuit is received within a recess of the core and an extension of the flex circuit extending from the coil portion extends through an opening of the core.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: February 9, 2016
    Assignee: VOLCANO CORPORATION
    Inventors: Paul Douglas Corl, David Miller
  • Patent number: 9105392
    Abstract: An improved structure of transformer's lead frame includes at least a lead frame module consisting of a lead frame main body and a lead frame cover, the lead frame main body has a through hole furnished at the center thereof; a bobbin formed at the side of the circumference of the through hole, and a pair of oppositely configured and reversely salient extension parts furnished at sides of the circumference of the through hole, each of the extension parts is combined to the mid-section of the wire connecting seats that have a plurality of wire connecting posts, a plurality of clip indentations are furnished at intervals and at the mid-section of the edge of the two sides of the corresponding extension parts and at the positions covered by the width of the corresponding extension parts.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 11, 2015
    Assignee: Yujing Technology Co., Ltd.
    Inventor: Sen-Tai Yang
  • Patent number: 9105390
    Abstract: An improved structure of transformer includes a lead frame main body (1), a lead frame cover (2), a trouser-like flap (3), and two iron cores (4) where the lead frame main body (1) has a penetration hole (11) with a bobbin (12) formed at the circumference there around. The trouser-like flap (3) being made of metal has a hollow part (31) for slipping on a bobbin (121) of the lead frame main body (1) also includes horizontally stretched thigh parts (32), (33). The outer circumference of the trouser-like flap (3) is furnished with a primary winding (123). The lead frame cover (2) being a sheet-shaped body has a hollow hole (21) furnished at the center thereof. On the inner-side surface, each of the two iron core (4) has a main core part (41) capable of stretching through the penetration hole (11) of the lead frame main body (1) where the main core part (41) has a containing circumferential trench (43) capable of containing the lead frame main body (1).
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 11, 2015
    Assignee: Yujing Technology Co., Ltd.
    Inventor: Sen-Tai Yang
  • Patent number: 9076580
    Abstract: A coil for forming an induced magnetic field may include a first coil bundle formed of a first conducting wire wound in a first direction, the first coil bundle having an inner space of a prescribed inner width, a second coil bundle formed of a second conducting wire wound in a second direction, the second coil bundle having a prescribed outer width that is smaller than the inner width of the first coil bundle, and a connector that electrically connects the first conducting wire and the second conducting wire to each other. The second coil bundle may be provided in the inner space of the first coil bundle. The conducting wires of the first and second coil bundles may be wound in opposite directions and gaps between coil bundles may be changed. Accordingly, the magnetic field can be more evenly distributed in a wider area while maintaining a constant inductance.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: July 7, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jun Park, Euntaek Jeoung, Kiwon Han, Buyoung Yang, Donghyun Seo
  • 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: 8988178
    Abstract: An inductive coupler assembly for use in a downhole environment and related methods are described. An example indicative coupler assembly includes a first inductive coupler having first and second magnetically coupled coils and a second inductive coupler having third and fourth magnetically coupled coils. The first and third coils are coupled to a first pair of signal lines and the second and fourth coils are coupled to a second pair of signal lines. The first inductive coupler is to magnetically convey a differential communications signal between the first and second pairs of signal lines, and the second inductive coupler is to magnetically convey a common mode power signal between the first and second pairs of signal lines.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Benoit Deville, Yann Dufour, Bernard G Juchereau, Christian Chouzenoux
  • Publication number: 20150047888
    Abstract: A coil component may include: a magnetic body; and first and eighth external electrodes formed on one surface of the magnetic body, second and third external electrodes and sixth and seventh external electrodes that are formed on two surfaces adjacent to the one surface of the magnetic body, respectively, and fourth and fifth external electrodes formed on the other surface opposing the one surface of the magnetic body. The magnetic body includes upper and lower substrates and first to fourth coil parts disposed between the upper and lower substrates and enclosed by an insulation film, the first to fourth coil parts having coupled coils wound in parallel on the same plane, respectively, so that magnetic fluxes in the coupled coils are formed in directions opposite to each other, the coupled coils being composed of first to eighth coils.
    Type: Application
    Filed: April 18, 2014
    Publication date: February 19, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chan YOON, Dong Hwan LEE, Tae Young KIM
  • Patent number: 8922315
    Abstract: Disclosed is a flexible ultracapacitor having a flexible cloth including an autotransformer-type connected switch made with nanoporous carbon electrodes impregnated by an electrolyte. Each of the nanoporous carbon electrodes may be configured to have a circuit. The circuit may include a first inductor and a second inductor. Each of the first inductor and the second inductor may have a first terminal and a second terminal. The second terminal of the first inductor may be coupled to the first terminal of the second inductor. A switch may be coupled between the first terminal of the first inductor and the second terminal of the second inductor.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: December 30, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Ramy Shanny, Nikolay K. Yushin
  • Publication number: 20140340186
    Abstract: A low cost, high performance electronic device for use in electronic circuits and methods. In one exemplary embodiment, the device includes an interleaved flat coil arrangement that ensures low leakage inductance while using a smaller number of flat coil windings compared to prior art devices. The flat coil windings further include features that are configured to mate with the header assembly terminal pins which substantially simplify the manufacturing process. Methods for manufacturing the device are also disclosed.
    Type: Application
    Filed: April 2, 2014
    Publication date: November 20, 2014
    Inventors: Wang Xianfeng, Ma Hongzhong
  • 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: 8786393
    Abstract: A system and method for manufacturing of a micro-transformer providing direct electrical isolation between a primary winding and a secondary winding while featuring tight magnetic coupling for a large possible step-up or step-down ratio. The micro-transformer may be implemented in an integrated circuit, and may include a magnetic core. A high stepping ratio, e.g. approximately 50 to 100, may be achieved by connecting multiple symmetric primary windings in parallel and multiple symmetric secondary windings in series, or vice-versa. A plurality of windings may be stacked vertically. The micro-transformer may be of particular utility in wireless sensor networks, thermal and vibrational energy harvesters, power converters, and signal isolators.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: July 22, 2014
    Assignee: Analog Devices, Inc.
    Inventor: Baoxing Chen
  • Patent number: 8779882
    Abstract: A cost effective solution for construction of high frequency, double ended, isolated, push pull, center tapped power transformers operating in continuous/discontinuous mode with minimized winding proximity losses comprises at least two identical sets of windings with identical coupling coefficients. Each set of windings consists of at least one primary winding and at least one secondary winding tightly coupled to each other. Both the sets of windings are loosely coupled to each other with a magnetic field isolating separator.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: July 15, 2014
    Assignee: Astec International Limited
    Inventor: Vijay G. Phadke
  • Publication number: 20140167884
    Abstract: There are provided a series inductor array implemented as a single winding capable of decreasing a layout area for providing a plurality of inductors, and a filter including the same, the series inductor array including a winding structure having both ends, and one or more terminal parts electrically connected to a region between the both ends of the winding structure to form an external electrical connection, wherein the winding structure has a structure in which a plurality of inductors having inductance formed in regions of the winding structure disposed between the both ends thereof and the terminal parts or between the terminal parts are connected in series.
    Type: Application
    Filed: February 27, 2013
    Publication date: June 19, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Jean SONG, Ki Joong KIM, Myeong Woo HAN, Shinichi IIZUKA, Ju Young PARK, Youn Suk KIM, Jun Goo WON
  • Publication number: 20140167899
    Abstract: A coil has multiple coil sections connected to each other and each coil section includes a body portion and at least one direct or protrusive connecting portion disposed at one end of the body portion. Coil sections form at least one spiral path around the central axis of the coil, and on the projection of the coil along the central axis. The protrusive connecting portions protrude out of the path location of the direct connecting portions. Two connected coil sections form only one overlapped surface at the coupled parts of the direct or protrusive connecting portions. Regarding to the body portions in the same spiral path, a first end of one body portion is indirectly connected and disposed adjacent to a second end of another body portion. The second end has one surface with a virtual extension reaching the first end.
    Type: Application
    Filed: September 24, 2013
    Publication date: June 19, 2014
    Inventor: GHING-HSIN DIEN