Noninductively Related Windings Patents (Class 336/171)
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Patent number: 11821870Abstract: An inspection probe (100) includes a Hall element (3) which detects the density of magnetic flux flowing in a magnetic circuit formed by a yoke (1), a magnet (2), and a magnetic pipe (P). A second outer circumferential surface (12a) of the yoke (1) is arranged to be located closer to the magnetic pipe (P) than a first outer circumferential surface (11a) of the yoke (1) is to the magnetic pipe (P).Type: GrantFiled: December 3, 2018Date of Patent: November 21, 2023Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toyokazu Tada, Hidehiko Suetsugu
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Patent number: 10867745Abstract: A device comprises a magnetic core comprising a first leg and a second leg formed by a first magnetic component and a second magnetic component, wherein a first gap and a second gap are placed between the first magnetic component and the second magnetic component and are in the first leg and the second leg, respectively, a first winding wound around the first leg in a counter-clockwise direction and a second winding wound around the second leg in a clockwise direction.Type: GrantFiled: July 19, 2017Date of Patent: December 15, 2020Assignees: Futurewei Technologies, Inc., University of Florida Research Foundation, IncorporatedInventors: Huan Zhang, Heping Dai, Shuo Wang
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Patent number: 10622137Abstract: A three-phase AC reactor according to an embodiment of the present invention includes three-phase coils that are not arranged in parallel, an input and output terminal block having an input and output unit having a parallel arrangement, and an external connection position change unit disposed between a coil end of each of the three-phase coils and the input and output terminal block to connect the coil end to the input and output terminal block.Type: GrantFiled: October 10, 2019Date of Patent: April 14, 2020Assignee: FANUC CORPORATIONInventors: Kenichi Tsukada, Kaname Matsumoto, Makoto Takeshita, Yuuichi Yamada, Masatomo Shirouzu
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Patent number: 10180660Abstract: In a timepiece 100 having an antenna 3 and motors 4, each motor 4 includes a stator 41, a coil 42 magnetically connected to the stator 41, and a rotor magnet 431 disposed in a receiving part 411 of the stator 41. With respect to each motor 4 disposed in a predetermined range from the antenna 3, an individual antimagnetic plate 5 which is a belt-like antimagnetic plate configured to have a width equal to or greater than the diameter of the rotor magnet 431 and cover a portion of the motor 4 including the rotor magnet 431 is disposed.Type: GrantFiled: August 31, 2016Date of Patent: January 15, 2019Assignee: CASIO COMPUTER CO., LTD.Inventors: Hiroyuki Hosobuchi, Junro Yano
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Patent number: 9985600Abstract: A printed circuit board assembly includes a printed circuit board, a number of electronic components mounted thereon, and a number of conductive traces electrically connecting the components to form a number of transmission channels. Each of the channels has first and second transmission routes for transmitting differential signals. Each channel includes a common mode choke, a pair of capacitors, and an autotransformer. The common mode choke includes a first coil series connection with the first transmission route and a second coil series connection with the second transmission route. The capacitors include a first capacitor series connection with the first transmitting route and a second capacitor series connection with the second transmitting route.Type: GrantFiled: April 1, 2016Date of Patent: May 29, 2018Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: Yong-Chun Xu, Jian-She Hu, Chao-Tung Huang, Chih-Ching Hsu
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Patent number: 9859043Abstract: Magnetic component assemblies including moldable magnetic materials formed into magnetic bodies, at least one conductive coil, and termination features are disclosed that are advantageously utilized in providing surface mount magnetic components such as inductors and transformers.Type: GrantFiled: April 22, 2010Date of Patent: January 2, 2018Assignee: COOPER TECHNOLOGIES COMPANYInventors: Yipeng Yan, Robert James Bogert
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Patent number: 9524821Abstract: A reactor that is small and capable of adjusting a coupling coefficient is provided. A reactor includes a plurality of coils obtained by winding a winding wire and a core that magnetically couples the plurality of coils to each other. The plurality of coils is arranged parallel to each other such that the adjacent outer circumferential surfaces are opposed to each other. The core may include: (1) a plurality of magnetic leg portions around which the plurality of coils are respectively disposed and (2) a pair of coupling portions that are disposed at both end portions of the magnetic leg portions and that couple the end portions of the magnetic leg portions adjacent to each other. The reactor may further include a coupling coefficient adjustment means that adjusts a coupling coefficient between adjacent coils.Type: GrantFiled: November 21, 2013Date of Patent: December 20, 2016Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LIMITED., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Shinichiro Yamamoto
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Publication number: 20130320774Abstract: A resonance coil includes plural unit coils where directions of magnetic fields which are formed by flowing of electric current are the same, in which the plural unit coils are arranged around a coil center line, and when the resonance coil is seen in a direction of the coil center line, the coil wire that forms the resonance coil is formed so as not to be overlapped.Type: ApplicationFiled: February 23, 2012Publication date: December 5, 2013Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinji Ichikawa, Nobuyoshi Kikuma, Masafumi Kadoi
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Publication number: 20120326826Abstract: An inductor structure includes a first inductor and a second inductor. The second inductor includes a loop that surrounds the first inductor. The first inductor includes a first loop and a second loop, and a crossover section coupling the first loop to the second loop so as to cause current flowing through the first inductor to circulate around the first loop in a first rotational direction and around the second loop in a second rotational direction opposite to the first rotational direction; wherein the first and second inductors are arranged in an equilibrated configuration about a first axis that bisects the inductor structure such that the first loop is on one side of the first axis and the second loop is on a second side of the first axis, such that the magnetic interaction between the inductors due to current flow in the inductors is cancelled out.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Applicant: CAMBRIDGE SILICON RADIO LIMITEDInventors: Johan Lucas Gertenbach, Anthony Lawrence McFarthing
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Patent number: 8274341Abstract: The techniques described herein permit the application of methods for increasing the performance of a communications system on a medium made up of N conductors and a reference plane by means of injecting signals inductively in up to N combinations of the conductors, including injection in common mode, such that said injected signals can be made to be orthogonal to each other.Type: GrantFiled: January 14, 2011Date of Patent: September 25, 2012Assignee: Marvell Hispania, S.L.U.Inventors: Jorge Vicente Blasco Claret, Jose Luis Gonzalez Moreno, Jose Maria Vidal Ros
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Patent number: 8269574Abstract: Which permits the application of methods for increasing the performance of a communications system on a medium made up of N conductors and a reference plane by means of injecting signals inductively in up to N combinations of the conductors, including injection in common mode, such that said injected signals can be made to be orthogonal to each other.Type: GrantFiled: September 26, 2008Date of Patent: September 18, 2012Assignee: Marvell Hispania, S.L.U.Inventors: Jorge Vicente Blasco Claret, José Luis González Moreno, José María Vidal Ros
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Publication number: 20120206060Abstract: An inductive electronic module, comprising a core element having an inner limb (12; 29a) and at least two lateral limbs (14, 16; 33a, 35a; 37a, 39a) associated the inner limb on both sides, the core element being provided with windings (N1, N2, N3, N4) for forming a transformer. A first winding (N1, N2: 47, 49; 51, 53) is implemented as a series connection composed of two partial windings. A first partial winding is formed on a first lateral limb, and a second partial winding is formed on a second lateral limb.Type: ApplicationFiled: October 19, 2010Publication date: August 16, 2012Applicant: EXSCITRON GMBHInventors: Winfried Beyer, Stephan Gruber, Rene Franzky
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Publication number: 20120194403Abstract: The invention proposes a radio frequency circuit which comprises a transformer with a first primary circuit, a second primary circuit, and a secondary circuit, the secondary circuit comprising an integrated first inductor, this first inductor being positioned, on an axis orthogonal to a surface of the circuit, between an integrated second and third inductor respectively comprised in the first primary circuit and second primary circuit.Type: ApplicationFiled: October 12, 2010Publication date: August 2, 2012Applicants: ST-ERICSSON SA, ST-ERICSSON (FRANCE) SASInventors: Christophe Cordier, Thomas Francois, Olivier Tesson
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Publication number: 20120092116Abstract: A high voltage transformer includes a first core and a second core coupled to the first core. The first core includes a protruding portion isolating the second core into a first winding portion and a second winding portion. The first winding portion is wrapped by a first primary winding and a first secondary winding to define a first magnetic circuit, and the second winding portion is wrapped by a second primary winding and a second secondary winding to define a second magnetic circuit. Direction of the first magnetic circuit is reversed to that of the second magnetic circuit. Width of the protruding portion is adjustable to achieve different leakage inductances between the first secondary winding and the second secondary winding, so as to balance current flowing through the first secondary winding and the second secondary winding.Type: ApplicationFiled: December 13, 2010Publication date: April 19, 2012Applicant: AMPOWER TECHNOLOGY CO., LTD.Inventors: CHIH-CHAN GER, YU-SHENG TAO, LIEN-FU CHIEN
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Publication number: 20100295645Abstract: A transformer arrangement comprising a transformer having a neutral and formed as a symmetrical transformer, in particular a cage transformer and having a reactor coil connected to the neutral of the transformer is provided. The transformer can be of any type having a neutral such as a Y-n/Y-n, Z-n/Z-n, Y-n/Z-n or a Z-n/Y-n transformer. By providing a transformer having symmetrical phases connected to a reactor coil a transformer arrangement having less weight is obtained. The lower weight is obtained because in comparison to using an E core for the transformer all phases will be symmetrical so that if a ground fault occurs in one of then phases there is no need for any compensatory windings regardless of which phase suffers the ground fault.Type: ApplicationFiled: February 20, 2008Publication date: November 25, 2010Applicant: Hexaformer ABInventors: Agne Fälldin, Fredrik Grivans
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Publication number: 20090243389Abstract: A multiple output magnetic induction unit includes a magnetic substrate, and a plurality of toroidal coils mounted on the magnetic substrate side by side. No insulating layer is required between the toroidal coils.Type: ApplicationFiled: March 5, 2009Publication date: October 1, 2009Applicant: FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD.Inventors: Masaharu Edo, Takayuki Hirose
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Publication number: 20090219124Abstract: 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: ApplicationFiled: March 12, 2007Publication date: September 3, 2009Applicant: COMMERGY TECHNOLOGIES LIMITEDInventor: George Young
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Patent number: 6158109Abstract: A spacer for mounting around the outer peripheral surface of a bobbin. The spacer has first and second edge surfaces formed in a circular arc shape. Subsequent to the formation of a first coil by winding wire around the bobbin, the wire is continuously curved from a distal end portion of the first coil along the first edge surface of the spacer. After making a U-turn of substantially 180 degrees, the wire is wound to form the second coil. Upon completion of winding of the second coil, the wire is guided along the second edge surface, from an end portion of the second coil, and a second portion of the first coil is wound. The portion of the wire for connecting both of the first and second coils is free from bent corners, thus avoiding the generation of stress concentration. Also, the wire is guided by smooth and curved edge surfaces of the spacer, thus preventing damage to a coating on the wire.Type: GrantFiled: January 28, 1998Date of Patent: December 12, 2000Assignee: Alpine Electronics, Inc.Inventors: Kei Tanabe, Naoki Shimamura
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Patent number: 5578981Abstract: A laminated inductor which is adopted in an electronic circuit. The laminated inductor has a plurality of coil sections which are composed by laminating insulating layers and coil conductors alternately. The two adjacent coil sections are staggered at least either in the vertical direction or in the horizontal direction.Type: GrantFiled: May 5, 1993Date of Patent: November 26, 1996Assignee: Murata Manufacturing Co., Ltd.Inventor: Hiromichi Tokuda
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Patent number: 4973930Abstract: A coil arrangement comprising two coils on a single coil former, termed a twin coil, is characterized in that the two coils (W1, W2 and, respectively, W3A), with any respective individual magnetic core (10 or, respectively, 9) required, are mounted with a substantial distance from each other on the coil former (1) and in that the respective residual coupling of the coils (W1, W2 and W3A) is eliminated by an oppositely wound or connected compensation winding (W3B). The compensating winding (8) is located in the one winding compartment (3) and has current from the coil in the other winding chamber (4) flowing through it. As a result the twin coil in accordance with the invention leads to some advantages over known twin coils in which the coupling between the two coils is nearly 100%.Type: GrantFiled: July 12, 1989Date of Patent: November 27, 1990Assignee: Vogt Electronic AktiengesellschaftInventors: Udo Mai, Uwe Hartmann
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Patent number: 4746891Abstract: A high saturation three coil current transformer for use with electrical apparatus having a U-shaped conductor portion. The current transformer has a ferromagnetic core surrounding one leg of the U-shaped conductor. The core is formed from two U-shaped core portions. A first coil and a second coil are wound on bobbins, with one bobbin being placed around each juncture between the core portions. A third coil is wound about the middle section of one of the U-shaped core portions prior to the core portions being joined. The current transformer is positioned so that the U-shaped conductor surrounds the third coil.Type: GrantFiled: April 19, 1985Date of Patent: May 24, 1988Assignee: Square D CompanyInventor: Henry J. Zylstra
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Patent number: 4473811Abstract: A symmetrically wound signal transformer having a first primary coil portion wound in one groove on a bobbin and a first secondary coil portion wound in an adjacent groove on the bobbin. A second primary coil portion, of shorter length than the first primary coil portion is wound in a reverse direction in the groove containing the first secondary coil portion. Likewise, a shorter second secondary coil portion is wound in a reverse direction in the groove containing the first primary coil portion. The respective second coil portions serve as decoupling windings.Type: GrantFiled: February 25, 1982Date of Patent: September 25, 1984Assignee: General Instrument CorporationInventor: George L. Schauble
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Patent number: 4419814Abstract: A method of fabricating an autotransformer ballast and the unique ballast resulting therefrom are disclosed; the method comprising forming a single bobbin for accommodating a main primary winding and a main secondary winding, each having a large number of turns, and additional, filament windings, each having a number of turns much smaller than the turns of said first and second main windings; the bobbin being defined by a tube adapted to accommodate a core, the tube being divided into sections along its longitudinal axis for receiving the respective windings; the method further comprising the steps of continuously forming the windings around the bobbin with wire of the same size for all of the said windings.Type: GrantFiled: October 15, 1981Date of Patent: December 13, 1983Assignee: General Signal CorporationInventor: Simon Hasserjian
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Patent number: 4172244Abstract: The isolating transformer has two windings galvanically separated from each other and each connected to a respective point, which points are set at various high voltage potentials. At least one additional transformer is provided in series with the isolating transformer, and has two galvanically separated windings, with one winding being galvanically separated from the isolating transformer and the second winding being galvanically connected to a first winding of the isolating transformer.Type: GrantFiled: June 1, 1978Date of Patent: October 23, 1979Assignee: Licentia Patent-Verwaltungs-G.m.b.H.Inventor: Jurgen Zeis
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Patent number: 4109223Abstract: A multiple choke assembly comprises individual chokes assembled side by side and in close proximity, mutual inductance phenomena occurring between adjacent chokes being minimized by alternating the lay of adjacent chokes. The disclosure also includes a description of a preferred arrangement utilizing a two-choke assembly for the burn protection of patients undergoing electrosurgery at times when electrocardiograph electrodes may be attached to the patient's skin.Type: GrantFiled: March 3, 1977Date of Patent: August 22, 1978Assignee: NDM CorporationInventors: Robert Henry Tenkman, Alan George Furler, Edward F. McGinnis, Jr.
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Patent number: 4084615Abstract: A compact arrangement of electromagnetically operated valves utilized for controlling the flow of deflecting air in a dye jet printing apparatus, and wherein the valves are mounted on a plurality of supporting cards and are positioned in a geometric lattice thereon so that the magnetic field created in each valve during its operation intersects the magnetic axis of its adjacent valves at a generally right angle thereby minimizing interference between valves during their operation.Type: GrantFiled: October 20, 1976Date of Patent: April 18, 1978Assignee: Milliken Research CorporationInventors: Norman E. Klein, William H. Stewart, Jr.
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Patent number: 4063207Abstract: A cylindrical coil form, for magnetic coupling with an irradiated nuclear magnetic resonance gas sample, is provided with peripheral and longitudinal grooves. The peripheral grooves are not helical in form, but are perpendicular to the axis of the coil form to give a precisely directed longitudinal magnetic field. A first coil for providing strong magnetic coupling along the axis of the coil form is wound in the peripheral grooves, the adjacent turns being interconnected by short longitudinal sections of wire in one of the longitudinal grooves. Additional coils are provided for magnetic coupling transverse to the axis of the coil through the use of wires extending down one of the longitudinal slots and back in another longitudinal slot. The form may be of phenolic material, or may be transparent so that the nuclear magnetic resonance sample may be irradiated directly through the coil form.Type: GrantFiled: January 31, 1977Date of Patent: December 13, 1977Assignee: Litton Systems, Inc.Inventor: Howard E. Williams
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Patent number: 4034584Abstract: A compact arrangement of electromagnetically operated valves utilized for controlling the flow of deflecting air in a dye jet printing apparatus, and wherein the valves are mounted on a plurality of supporting cards and are positioned in a geometric lattice thereon so that the magnetic field created in each valve during its operation intersects the magnetic axis of its adjacent valves at a generally right angle thereby minimizing interference between valves during their operation.Type: GrantFiled: April 2, 1976Date of Patent: July 12, 1977Assignee: Milliken Research CorporationInventors: Norman E. Klein, William H. Stewart, Jr.
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Patent number: 3990030Abstract: For use in the deflection circuitry of a cathode ray tube, such as with a television receiver picture tube, a single pincushion correction transformer providing both vertical and horizontal correction. The transformer includes an E core having a control winding provided around the central leg, a horizontal correction winding provided on one outer leg and a pair of phase opposed windings on the other leg to minimize cross modulation and sensitivity to stray magnetic fields.Type: GrantFiled: August 11, 1975Date of Patent: November 2, 1976Assignee: Standex International CorporationInventor: Edward R. Chamberlin