Two Windings (e.g., Transformer) Patents (Class 336/182)
  • Patent number: 11842835
    Abstract: A magnetic assembly formed by a custom magnetic core and its bobbin with interconnection pins is presented. This magnetic assembly leads to a higher power density of magnetic assembly and a better utilization of the volume inside a power converter, allowing a higher power density of the power converter and a higher efficiency through the minimization of the parasitic inductances.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: December 12, 2023
    Assignee: Rompower Technology Holdings, LLC
    Inventors: Ionel Jitaru, Iulian Busu, Mihai Bogdan Jitariu
  • Patent number: 11817246
    Abstract: One object of the present invention is to provide a wire-wound coil component and a drum core that can be manufactured easily and less affected by an inter-wire capacitance. A coil component includes: a drum core having a winding core extending along a front-rear direction and a first flange provided on a front end of the winding core; a first conductor wire wound around the winding core of the drum core; and a second conductor wire wound on an outer side of the first conductor wire in a direction orthogonal to the front-rear direction, wherein turns of a same number of the first conductor wire and the second conductor wire contact with each other, while turns of different numbers of the first conductor wire and the second conductor wire are separated from each other.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 14, 2023
    Assignee: Taiyo Yuden Co., Ltd.
    Inventor: Katsuyuki Horie
  • Patent number: 11735955
    Abstract: An apparatus for transmitting electrical energy to an electrical consumer, includes a transmitter device for transmitting an electrical energy having at least one first coil and a first capacitor for producing a resonant tank circuit at the transmitter device; at least one receiver device for receiving the energy transmitted by the transmitter device, including a second coil and a capacitor for producing a resonant tank circuit at the receiver device, wherein the receiver device is connectable to the consumer to form an electrical connection; a power amplifier; a transformer for matching the impedance between the resonant tank circuit at the receiver device and the consumer; and an electrical energy source—for supplying the resonant tank circuit at the transmitter device with electrical energy.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 22, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventor: Heinz Zenkner
  • Patent number: 11727240
    Abstract: Systems and methods for operating a security tag. The methods comprise: receiving a first wireless signal using a receive circuit of the security tag; inducing a voltage in the receive circuit of the security tag while the first wireless signal is being received; performing operations by a controller to selectively close a switch while the voltage is being induced in the circuit; causing a release of a mechanical component of the security tag by allowing energy to flow from the receive circuit to the mechanical component when the switch is closed; and performing operations by the controller to prevent damage to the mechanical component as a result of the security tag being a certain distance from an external device.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: August 15, 2023
    Assignee: Sensormatic Electronics, LLC
    Inventors: Ronald B. Easter, Manuel Soto, Mohammad Mohiuddin
  • Patent number: 11695345
    Abstract: Disclosed herein is an improved flyback converter that separates the magnetic components of the converter into a transformer and a separate, discrete energy storage inductor. This arrangement can improve the operating efficiency of the converter by reducing the commutation losses as compared to a conventional flyback converter. The magnetic components may be constructed on separate magnetic cores or may be constructed on magnetic cores having at least one common element, thereby allowing for at least partial magnetic flux cancellation in a portion of the core, reducing core losses.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: July 4, 2023
    Assignee: Apple Inc.
    Inventors: Vijay G. Phadke, Prudhvi Mohan Maddineni
  • Patent number: 11694836
    Abstract: A stacked transformer or inductor apparatus including a first layer with a first layer wire element extending around a center axis and a second layer with a second layer wire element. The second layer element includes side by side first and second wire components in parallel spaced relation extending around the center axis and the first wire component is connected to the first layer wire element to form a primary turn winding. A third layer includes a third layer wire element extending around the center axis and connected to the second wire component of the second layer wire element to form a secondary turn winding partially overlapping with the primary turn winding.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: July 4, 2023
    Assignee: Intel Corporation
    Inventors: Chuanzhao Yu, Qiang Li, David Newman
  • Patent number: 11670448
    Abstract: A planar transformer includes a magnetic core having an internal opening. A plurality of high current capacity windings are disposed within the internal opening. These high current capacity windings have a length, a width and a thickness. Each winding is formed as an open loop having adjacent first and second end portions. There is at least one primary winding and one secondary winding. The primary winding and/or secondary winding may be high current capacity windings. A first terminal lead is electrically interconnected to multiple adjacent first end portions and a second terminal lead is electrically interconnected to multiple second end portions. Both the first terminal lead and said second terminal lead have a length, a width and a thickness measured with the thickness being less than either the terminal lead length or the terminal lead width.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 6, 2023
    Assignee: Astronics Advanced Electronic Systems Corp.
    Inventor: Warren J. Wambsganss
  • Patent number: 11651887
    Abstract: A transformer structure may include a first coil having one or more turns, and a second coil having one or more turns. A turn of the one or more turns of the first coil may overlap a turn of the one or more turns of the second coil in a lateral direction substantially along the turn of the first coil and in a vertical direction substantially along the turn of the first coil. In some implementations, the transformer structure may be integrated in a semiconductor device.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: May 16, 2023
    Assignee: Infineon Technologies AG
    Inventors: Kambiz Hadipour Abkenar, Martin Dechant
  • Patent number: 11587717
    Abstract: An inductor element includes a first conductive portion, a second conductive portion, and a magnetic core. The first conductive portion includes a first round-about portion, a first mount portion, and a second mount portion. The second conductive portion includes a second round-about portion, a third mount portion, and a fourth mount portion. The magnetic core houses at least a part of the first and second conductive portions so that each mount surface of the first to fourth mount portions is exposed from one side of the magnetic core. The first and second conductive portions are arranged so that the first and second directions are substantially parallel and opposite to each other. The first and third mount portions are at least partially overlapped with each other in a third direction perpendicular to the first and second directions.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: February 21, 2023
    Assignee: TDK CORPORATION
    Inventors: Chen Wang, Satoshi Sugimoto
  • Patent number: 11581121
    Abstract: A common mode choke apparatus includes a first bus bar forming a first plurality of loops about a first segment of a ferrite core, the first bus bar having a plurality of first upper surfaces, and a second bus bar forming a second plurality of loops about a second segment of the ferrite core, the second bus bar having a plurality of second upper surfaces.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 14, 2023
    Assignee: EMBEDDED SYSTEMS INC.
    Inventors: Armando Martinez, Kerwyn Dale Schimke
  • Patent number: 11539245
    Abstract: An apparatus for transmitting electrical energy to an electrical consumer, includes a transmitter device for transmitting an electrical energy having at least one first coil and a first capacitor for producing a resonant tank circuit at the transmitter device; at least one receiver device for receiving the energy transmitted by the transmitter device, including a second coil and a capacitor for producing a resonant tank circuit at the receiver device, wherein the receiver device is connectable to the consumer to form an electrical connection; a transformer for matching the impedance between the resonant tank circuit at the receiver device and the consumer; and an electrical energy source for supplying the resonant tank circuit at the transmitter device with electrical energy.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: December 27, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventor: Heinz Zenkner
  • Patent number: 11443889
    Abstract: A semiconductor package includes a transformer having a primary winding and a secondary winding. The primary winding has first and second terminals and a pair of taps. The secondary winding has first and second terminals and a pair of taps. The semiconductor package includes first and second data transfer circuits, a bridge, and a rectifier. The first data transfer circuit is coupled to the pair of taps of the primary winding. The second data transfer circuit is coupled to the pair of taps of the secondary winding. The bridge is coupled to the first and second terminals of the primary winding. The rectifier is coupled to the first and second terminals of the secondary winding.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: September 13, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dushmantha Bandara Rajapaksha, Roland Sperlich, Anant Shankar Kamath, Vijayalakshmi Devarajan, Wesley Ray
  • Patent number: 11431264
    Abstract: An electrical converter chosen from the group consisting of an inverter able to generate an AC voltage from a DC voltage and a rectifier able to generate a DC voltage from an AC voltage. This converter comprises a first inductor and a controllable switch that are connected in series between first and second DC voltage ports. The converter comprises a piezoelectric resonator comprising: a first electrode connected directly to a first power terminal of the switch, a second electrode connected directly to a second power terminal of the switch, and a piezoelectric material interposed between the first and second electrodes.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: August 30, 2022
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Ghislain Despesse, Xavier Maynard
  • Patent number: 11430603
    Abstract: An inductor includes a core including a multilayer part in which magnetic layers and insulating layers are alternately stacked; a coil including a wound part having a winding axis substantially perpendicular to a stacking direction of the multilayer part; and an element body. The multilayer part includes a first multilayer part in which first magnetic layers and insulating layers are alternately stacked and second and third multilayer parts in which second magnetic layers and insulating layers are alternately stacked, the electrical resistivity and/or relative magnetic permeability of the second magnetic layers being larger than those of the first magnetic layers. The first multilayer part has first and second surfaces that are perpendicular to the stacking direction and face each other and third and fourth surfaces that are parallel to the stacking and winding axis directions. The second and third multilayer parts are arranged on the first and second surfaces.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: August 30, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Seigou Shirai, Kachiyasu Satou
  • Patent number: 11398337
    Abstract: An inductor includes a pair of core portions having tapered legs and windings wound around the tapered legs. Each of the core portions are arranged adjacent to each other such that the tapered legs define a gap between the core portions that extends diagonally from one end of the inductor towards another end of the inductor relative to outer surfaces of the inductor.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 26, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Baoming Ge, Lihua Chen, Serdar Hakki Yonak
  • Patent number: 11387535
    Abstract: A 3D stacked parallel-parallel power combiner includes first and second parallel power combining transformers and a first parallel power combiner. The first parallel power combining transformer includes first and second primary windings receiving first and second input signals, and a first secondary winding coupled to the first and second primary windings and providing a first output signal based on the first and second input signals. The second parallel power combining transformer includes third and fourth primary windings receiving third and fourth input signals, and a second secondary winding coupled to the third and fourth primary windings and providing a second output signal based on the third and fourth input signals. The first parallel power combiner is connected to output terminals of the first and second parallel power combining transformers and provides a third output signal by combining the first and second output signals.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: July 12, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Ockgoo Lee, Hyunjin Ahn, Sanghoon Sim
  • Patent number: 11387038
    Abstract: A transformer assembly and a method of producing the same are provided. The transformer assembly includes a housing, transformer oil, and a plurality of coils of electrically conductive wire. The transformer oil is disposed within the housing. The coils of electrically conductive wire are disposed in the housing and in contact with the transformer oil. A cross-linked aliphatic polyamide insulation material configured to electrically insulate the electrically conductive wire. The insulation material includes stabilizing compounds that provide thermal and chemical stability for the insulation material.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: July 12, 2022
    Inventors: Martin Weinberg, Askim Senyurt
  • Patent number: 11342115
    Abstract: A planar magnetic structure includes a closed loop structure having a plurality of core segments divided into at least two sets. A coil is formed about one or more core segments. A first antiferromagnetic layer is formed on a first set of core segments, and a second antiferromagnetic layer is formed on a second set of core segments. The first and second antiferromagnetic layers include different blocking temperatures and have an easy axis pinning a magnetic moment in two different directions, wherein when current flows through the coil, the magnetic moments rotate to form a closed magnetic loop in the closed loop structure.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 24, 2022
    Assignee: International Business Machines Corporation
    Inventors: Guohan Hu, Naigang Wang
  • Patent number: 11257898
    Abstract: In an embodiment, a circuit includes: a transformer defining an inductive footprint within a first layer; a grounded shield bounded by the inductive footprint within a second layer separate from the first layer; and a circuit component bounded by the inductive footprint within a third layer separate from the second layer, wherein: the circuit component is coupled with the transformer through the second layer, and the third layer is separated from the first layer by the second layer.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 22, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Feng Wei Kuo, Chewn-Pu Jou, Huan-Neng Chen, Lan-Chou Cho, Robert Bogdan Staszewski
  • Patent number: 11222746
    Abstract: A planar magnetic structure includes a closed loop structure having a plurality of core segments divided into at least two sets. A coil is formed about one or more core segments. A first antiferromagnetic layer is formed on a first set of core segments, and a second antiferromagnetic layer is formed on a second set of core segments. The first and second antiferromagnetic layers include different blocking temperatures and have an easy axis pinning a magnetic moment in two different directions, wherein when current flows through the coil, the magnetic moments rotate to form a closed magnetic loop in the closed loop structure.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: January 11, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Guohan Hu, Naigang Wang
  • Patent number: 11189414
    Abstract: A choke comprising a magnetic core having a centre line that forms a closed loop, the choke has a choke axis around which the magnetic core is located, and a coil wound around the magnetic core, the coil has a plurality of turns, each of the turns has a width perpendicular to lengthwise direction of the turn, and a thickness perpendicular to both lengthwise direction of the turn and the width. The coil has a cross-section whose shape varies along lengthwise direction of the coil, such that each turn has an inner portion and an outer portion whose width is substantially greater than width of the inner portion, the outer portion is located further from the choke axis than the inner portion.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 30, 2021
    Assignee: ABB Schweiz AG
    Inventors: Jukka-Pekka Kittilä, Vesa Palojoki, Asko Rantanen
  • Patent number: 11069471
    Abstract: A reactor that includes a coil that includes a winding portion; a magnetic core that includes a plurality of core pieces that are located inside and outside the winding portion, and one or more gap portions that are interposed between core pieces that are adjacent to each other; an interposed member that is interposed between the coil and the magnetic core; and a resin mold portion that covers at least a portion of an outer circumferential surface of the magnetic core without covering an outer circumferential surface of the winding portion so that the outer circumferential surface of the winding portion is exposed.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 20, 2021
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuo Hirabayashi, Masayuki Kato, Takashi Misaki, Seiji Shitama, Shinichiro Yamamoto
  • Patent number: 11004592
    Abstract: An electric device comprises a core having a center section and two outer sections, a high current winding, and a low current winding. The high current winding includes a plurality of half-turn coils connected in parallel between a first high current terminal and a second high current terminal. Each of the plurality of half-turn coils is wound around a fraction of the center section and forms a loop around one of the two outer sections along with the first and second high current terminals. The low current winding includes a plurality of full-turn coils connected in series between a first low current terminal and a second low current terminal, each of the plurality of full-turn coils wound around the center section of the core substantially fully. The plurality of half-turn coils of the high current winding are interleaved with the plurality of full-turn coils of the low current winding.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 11, 2021
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Subbarao Dakshina Murthy Bellur, Kartik Iyer, Minyu Cai
  • Patent number: 10886057
    Abstract: An electronic component includes an element body, a conductor, and a plated electrode layer. The element body includes a first outer surface provided with a first recess. The conductor includes a first conductor portion. The first conductor portion is disposed in the first recess and includes a first face opposed to a bottom face of the first recess and a second face opposed to the first face. The plated electrode layer includes a first plating portion covering the second face. The second face includes a first slope inclined with respect to the first outer surface in such a way as to be recessed toward the bottom face side of the first recess from the first outer surface.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 5, 2021
    Assignee: TDK CORPORATION
    Inventors: Shunji Aoki, Yuya Ishima, Makoto Takahashi, Shougo Okamoto, Takafumi Takahashi, Hajime Kato, Yuto Shiga
  • Patent number: 10809326
    Abstract: A gate driver circuit is provided. The gate driver circuit includes an isolated gate driver power supply circuit. The isolated gate driver power supply circuit includes a coreless transformer and a resonance converter coupled to the coreless transformer. A method of manufacturing an isolated gate driver power supply circuit for a gate driver circuit is also provided.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 20, 2020
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Ruxi Wang, Krishna Mainali, Juan Antonio Sabate, Xiaohu Liu, Fengfeng Tao
  • Patent number: 10650957
    Abstract: Apparatus to form a transformer, an inductor, a capacitor or other passive electronic component, with patterned conductive features in a lamination structure, and one or more ferrite sheets or other magnetic core structures attached to the lamination structure via one or more inkjet printed magnetic adhesive layers that join the magnetic core structure or structures to the lamination structure.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: May 12, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yi Yan, Luu Thanh Nguyen, Ashok Prabhu, Anindya Poddar
  • Patent number: 10600566
    Abstract: A planar magnetic structure includes a closed loop structure having a plurality of core segments divided into at least two sets. A coil is formed about one or more core segments. A first antiferromagnetic layer is formed on a first set of core segments, and a second antiferromagnetic layer is formed on a second set of core segments. The first and second antiferromagnetic layers include different blocking temperatures and have an easy axis pinning a magnetic moment in two different directions, wherein when current flows through the coil, the magnetic moments rotate to form a closed magnetic loop in the closed loop structure.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: March 24, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Guohan Hu, Naigang Wang
  • Patent number: 10580561
    Abstract: An object is to improve a core and heat radiation properties from the coil, and to reduce the size of a transformer. In order to attain the object described above, a transformer includes a bobbin wound around with a coil, a columnar core center portion in which the bobbin is mounted, and a plurality of core leg portions joining both ends of the core center portion on the outside of the coil. The size of the core leg portion is larger than the size of the other core leg portions, and the core leg portion includes a flat outer circumferential surface approximately parallel to a surface which is tangent to an outer circumferential side surface of the coil. The transformer is disposed in a housing such that the outer circumferential surface of the core leg portion is tangent to a floor surface of the housing.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: March 3, 2020
    Assignee: HITACHI, LTD.
    Inventor: Hiroshi Hozoji
  • Patent number: 10529483
    Abstract: A resonant transformer with adjustable leakage inductance includes a secondary winding group, a primary winding group, a magnetic sheet and a core group. The primary winding group is provided on a bobbin of the secondary winding group, and the magnetic sheet is provided in the bobbin. The secondary winding group, the primary winding group and the magnetic sheet include a first through hole, a second through hole and a through hole, respectively. The core group includes a first core and a second core symmetrically disposed, which are disposed on top of and at the bottom of the primary winding group, respectively. During operation of the resonant transformer, the degree of coupling between the primary and secondary sides can be changed using the magnetic sheet. This allows the native leakage inductance to be altered to satisfy demands for various different resonant frequencies.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 7, 2020
    Assignee: Yujing Technology Co., Ltd.
    Inventor: Sen-Tai Yang
  • Patent number: 10504643
    Abstract: An electrical device includes a first flexible connector, including a first flexible conductor and a second flexible conductor, and a flexible insulator disposed between the first flexible conductor and the second flexible conductor, a second flexible connector spaced apart from the first flexible connector, the second flexible connector including a third flexible conductor, a first interconnect to electrically connect the first flexible conductor and the third flexible conductor, a second interconnect to electrically connect the third flexible conductor and the second flexible conductor, wherein the second interconnect is disposed opposite the first interconnect.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 10, 2019
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Charles Patrick Shepard, Shin Katsumata
  • Patent number: 10403430
    Abstract: A reactor coil includes first and second coil elements each formed by edgewise and rectangular winding of one piece of rectangular wire rod in a manner in which the wound rectangular wire rod is stacked rectangularly and cylindrically and, at a winding terminating end point of the first coil element, the rectangular wire rod is bent approximately 90 degrees in a direction opposite to the winding direction of the first coil element so that the rectangular wire rod is stacked in a direction opposite to the stacking direction of the first coil element and is wound edgewisely and rectangularly in a direction opposite to the winding direction of the first coil element to form the second coil element and, as a result, the first coil element and second coil element are aligned in parallel to each other in a continuous state.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 3, 2019
    Assignees: TAMURA CORPORATION, TAMURA FA SYSTEM CORPORATION
    Inventors: Masatoshi Hasu, Kaoru Hattori, Ryo Nakatsu, Sei Urano, Kensuke Maeno
  • Patent number: 10186950
    Abstract: An inductor assembly is disclosed that includes a magnetic core with a center leg and a number n of phase legs, wherein n is an integer and n>1. Each phase leg is magnetically connected to the center leg by an upper bridge and a lower bridge to form a magnetic main loop, a midpoint of the phase leg being magnetically connected to a center point of the center leg by a shunt element including a gap. Each phase leg further includes an upper inductor coil disposed on an upper phase leg section located between the midpoint and the upper bridge and a lower inductor coil disposed on a lower phase leg section located between the midpoint and the lower bridge. Alternatively, the upper and lower inductor coils are disposed on respective upper and lower bridges.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: January 22, 2019
    Assignee: SMA Solar Technology AG
    Inventors: Henrik Wolf, Marek Rylko, Milosz Handzel, Marcin Kacki, Artur Mulawa, Piotr Otwinowski, Milosz Szarek
  • Patent number: 10024692
    Abstract: A transformer includes a bobbin, a primary coil, and a pair of secondary coils. The bobbin has an axial bore formed therein. The primary coil is wound on the bobbin and is adapted to be electrically excited with an excitation signal. The secondary coils are disposed adjacent to the primary coil, and are inductively coupled to the primary coil upon electrical excitation of the primary coil. The primary coil is wound on the bobbin such that at least a portion of the primary coil has a cross section shape that is a trapezoid.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 17, 2018
    Assignee: Honeywell International Inc.
    Inventors: Subramanian Esakki, Paresh Sanchihar, Vijayshekhar Araganji, Kumaran Sena Narasimhan
  • Patent number: 9755610
    Abstract: A transformer of the balanced-unbalanced type includes a primary inductive circuit and a secondary inductive circuit housed inside an additional inductive winding connected in parallel to the terminals of the secondary circuit and inductively coupled with the primary circuit and the secondary circuit.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: September 5, 2017
    Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA
    Inventors: Frederic Gianesello, Romain Pilard, Cedric Durand
  • Patent number: 9602065
    Abstract: In a semiconductor device, received signals of different frequency bands are input selectively to low noise amplifiers. A plurality of primary inductors are coupled between differential output nodes of the respective low noise amplifiers. A secondary inductor is provided commonly for the primary inductors, and magnetically coupled to the primary inductors. A demodulator converts a received signal transmitted from one of the primary inductors to the secondary inductor by electromagnetic induction, into a signal of a low frequency.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 21, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Masakazu Mizokami
  • Patent number: 9576717
    Abstract: A multi-layered printed circuit board, PCB, includes first windings for a first side of a planar magnetic transformer and second windings for a second side of the planar magnetic transformer. The PCB further includes conductive layers configured as the first windings, conductive layers configured as the second windings, and layers of an isolation material. Each layer of the isolation material is arranged between two conductive layers to provide electrical isolation between the two conductive layers. A group of two or more adjacent conductive layers are all conductive layers of the first windings and are all arranged between two conductive layers of the second windings. The thickness of the isolation material between the group of adjacent conductive layers of the first windings is less than the thickness of the isolation material between a conductive layer of the second windings and a conductive layer of the first windings.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: February 21, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Oscar Persson, Magnus Karlsson
  • Patent number: 9214265
    Abstract: A single- or multi-phase dry-type transformer includes at least two coils. A barrier between phases made of an electrically insulating material is arranged in the intermediate space between the individual coils.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 15, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Benjamin Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper, Rafael Murillo, Carlos Roy
  • Patent number: 9214273
    Abstract: A method provides a radial drop winding for an open wound transformer. A plurality of non-electrically conductive posts are arranged to define an interior space. Each post is of generally L-shape having a main body and a leg extending from a bottom end of the main body. During an open winding process, conductive wire is dropped to build up lengthwise along the posts to define at least one generally cylindrical winding segment supported by the legs of the posts.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 15, 2015
    Assignee: ABB Technology AG
    Inventors: Robert C. Ballard, Josiah Levi Vandervelde, William Edward Pauley, Jr., Joseph Leo Tedesco
  • Patent number: 9013261
    Abstract: The present disclosure provides a high-power variable inductor and a filter employing the same. A provided variable inductor comprises a first inductor and a second inductor. The first inductor is connected to a first input terminal and to a first output terminal of a two-port circuit. The second inductor is connected to a second input terminal and to a second output terminal of the two-port circuit. The first inductor and the second inductor are symmetrical to each other and jointly surround an adjustable area for varying an inductance of the variable inductor.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: April 21, 2015
    Assignee: PSTEK Co., Ltd.
    Inventor: Jae Taek Lee
  • Patent number: 8994487
    Abstract: A transformer includes a bobbin, at least one primary winding coil, at least one secondary winding coil, and a magnetic core assembly. The bobbin includes a main body, plural extension structures, and plural pin groups. The main body includes a channel, plural winding sections, a first connecting seat, and a second connecting seat. The plural extension structures are connected with the first connecting seat and the second connecting seat, respectively. In addition, each of the plural extension structures has a notch and a stepped structure, and the stepped structure comprises plural stepped parts. Each of the primary winding coil and the secondary winding coil includes plural outlet terminals. The plural outlet terminals of the secondary winding coil are respectively disposed on the plural stepped parts of the stepped structure and fixed on the pin group which is disposed on one of the extension structures.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 31, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Han-Hsing Lin, Hsiang-Yi Tseng, Ching-Hsiang Tien, Hsin-Wei Tsai, Yi-Lin Chen, Chun-Ping Chen
  • 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: 8963671
    Abstract: A semiconductor transformer includes a first coil inductor and a second coil inductor. The first coil inductor has a first port, a second port and a first coil inductor wall, the first coil inductor wall having a height substantially equal to a thickness of the substrate. The second coil inductor has a third port, a first extension wall connected to the third port, a fourth port, a second extension wall connected to the fourth port and a second coil inductor wall.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 24, 2015
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Chi-Han Chen, Pao-Nan Lee, Chi Tsung Chiu, Chien Hua Chen
  • Patent number: 8963672
    Abstract: This wiring board is provided with an insulating core substrate, a first conductor pattern, a second conductor pattern, and a conductive material. The first conductor pattern and the second conductor pattern are adhered to the insulating core substrate. The second conductor pattern has a first surface and a second surface. The second conductor pattern has a concavity and a through-hole. The opening of the concavity that opens to the first surface and the opening of the through hole that opens to the first surface are interconnected to each other. The first conductor pattern is positioned at the opening of the concavity. The first conductor pattern and the second conductor pattern are electrically connected by means of the conductive material, which fills from the opening of the through hole that opens to the second surface.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 24, 2015
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hiroaki Asano, Yasuhiro Koike, Kiminori Ozaki, Hitoshi Shimadu, Tetsuya Furuta, Masao Miyake, Takahiro Hayakawa, Tomoaki Asai, Ryou Yamauchi
  • Patent number: 8928449
    Abstract: An inductive element including a magnetic core with a section received in a central opening defined in each of the layers in a multilayer circuit board. A primary winding, an auxiliary winding, and a secondary winding are each realized in conductive coils located on a plurality of layers in the circuit board. The secondary winding is separated from the other windings by a relatively-thick dielectric layer. Other dielectric layers separate each of the layers with the coils. EMI shields are provided on other layers. The coils are located in a central region of each layer so as to provide an adequate safety margin from the side edges of the inductive element.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 6, 2015
    Assignee: Flextronics AP, LLC
    Inventors: Arturo Silva, Neil Gayle
  • Patent number: 8928443
    Abstract: An electrical device includes a winding, a primary cooling system, a secondary cooling system, and an actuator. The winding includes an interior portion and an exterior surface. The primary cooling system cools the exterior surface of the winding. The secondary cooling system cools the interior portion of the winding. The actuator is configured to actuate the secondary cooling system in response to a sensed condition of the electrical device or a predicted condition of the electrical device.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Elwha LLC
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, Jr.
  • Patent number: 8922322
    Abstract: A combined structure of hollow bobbin and conductive sheet for a transformer includes a hollow bobbin and at least one conductive sheet. The hollow bobbin includes an outer surface and at least one positioning structure formed on the outer surface. The conductive sheet is fit on the outer surface of the hollow bobbin and includes a main body and at least one engaging structure. The main body has a hollow portion, making the main body to have an inner circumference. The engaging structure is formed on the inner circumference of the main body and is engaged with the positioning structure of the hollow bobbin. The transformer includes at least one winding disposed on the outer surface of the hollow bobbin and abutting against the conductive sheet.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 30, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Hua-Sheng Lin, Yi-Fan Wu, Yu-Chieh Li, Zhi-Liang Zhang, Ching-Hsien Teng, Yu-Liang Hung
  • 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: 8866580
    Abstract: A power converting apparatus makes reduction of power loss possible and operates in a two-phase mode. A power converting apparatus of the inventive concept includes I-shaped block cores, each being made of a magnetic material; and E-shaped cores, each being produced by combining two L-shaped magnetic materials to each of the I-shaped cores. In each of the E-shaped cores, the block core is defined as a central leg, the other two legs are defined as a first outside leg and a second outside leg, respectively, and a closed magnetic path is configured by two E-shaped cores combined such that one of respective central legs in the two E-shaped cores, one of respective first outside legs therein, and one of respective second outside legs therein are caused to face the other of the central legs, the other of the first outside legs, and the other of the second outside legs.
    Type: Grant
    Filed: May 12, 2012
    Date of Patent: October 21, 2014
    Assignees: Shinto Holdings Co., Ltd., Nikkindenji Kogyo Co., Ltd.
    Inventors: Yuichi Hasegawa, Hiromune Ishii, Yuki Satake, Takeshi Kawahara
  • 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: 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