Patents Issued in November 9, 2017
  • Publication number: 20170324277
    Abstract: A load-independent Class EF inverter may maintain ZVS operation, and produce a constant output current, rather than a constant output voltage, regardless of the load resistance. A constant output current allows the inverter to operate efficiently for a load range from zero resistance (short circuit) to a certain maximum load resistance, making the inverter more suitable as a coil driver for an IPT system. The resonant frequency of the resonant circuit may be tuned to a non-integer multiple of a switching frequency.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 9, 2017
    Inventors: Paul Mitcheson, David Yates, Samer Aldhaher
  • Publication number: 20170324278
    Abstract: Disclosed aspects relate to wireless power distribution management in an open environment. A key-pair identifier is established in a master server. The key-pair identifier can indicate both a first wireless power target device and a first wireless power source distribution center. The master server detects an indication of a wireless power coupling between the first wireless power target device and a second wireless power source distribution center. A usage assessment is determined for the wireless power coupling by the master server using the key-pair identifier. The usage assessment can relate to the first wireless power source distribution center. The master server may provide or output the usage assessment for the wireless power coupling.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Inventors: Ching-Yun Chao, Mark E. Elliott
  • Publication number: 20170324279
    Abstract: Provided is a wireless power receiver for wirelessly receiving power from a wireless power transmitter, including a resonator that wirelessly receives power from the wireless power transmitter, a communication module that performs communication with the wireless power transmitter, and a controller that transmits manufacturer information on the wireless power receiver to the wireless power transmitter through the communication module, receives an authority over whether to allow each of at least one function of the wireless power receiver through the communication module, and performs a function allowed for the wireless power receiver based on the authority.
    Type: Application
    Filed: April 4, 2017
    Publication date: November 9, 2017
    Inventors: Min-Ho KANG, Saeng-Hee Lee, Han-Seok Park, Se-Ho Park, Kyung-Woo Lee
  • Publication number: 20170324280
    Abstract: A wireless power supply device includes: a power supply coil for wirelessly transmitting electric power to a power receiving device; a driving circuit for outputting pulse electric power to the power supply coil; a first radio module for receiving rectified voltage information regarding rectified voltage generated in the power receiving device via a radio communication path; and a control circuit for generating a driving control signal on the basis of the rectified voltage information received by the first radio module, thereby to control the driving circuit, said control circuit controlling a driving frequency of the driving circuit at a fixed frequency between a series resonant frequency and a parallel resonant frequency of a resonant circuit of the power receiving device.
    Type: Application
    Filed: April 11, 2017
    Publication date: November 9, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventor: Shinichi SUZUKI
  • Publication number: 20170324281
    Abstract: The present disclosure discloses a wireless power transfer device. A power transmitting coil (or a power receiving coil) is equally divided into N equivalents by configuring a primary-side compensation capacitor (or a secondary side compensation capacitor) to comprise N sub-compensation capacitors which are connected in the power transmitting coil (or the power receiving coil) in an equally distributed manner. With the distributed capacitance connection structure, it is possible to reduce the voltage across each coil segment of the power transmitting coil (or the power receiving coil), thereby reducing the coil-to-ground common mode current of the transmitting coil and the circulating current caused by the receiving coil.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 9, 2017
    Applicant: NINGBO WEIE ELECTRONICS TECHNOLOGY LTD.
    Inventor: Bingchen CHE
  • Publication number: 20170324282
    Abstract: A wireless power transmission device for wirelessly transmitting power to at least one wireless power reception device through a magnetic field, the wireless power transmission device including: a power transmission unit for generating a magnetic field, an impedance matching unit, and a control unit for controlling the impedance matching unit, the impedance matching unit including: a plurality of first circuits which include a capacitor or an inductor and are connected in series to the power transmission unit; a plurality of second circuits which include a capacitor or an inductor and are connected in parallel to the power transmission unit; a matching inductor which is connected in series to the second circuits; and a plurality of switches which are arranged in the first circuits and second circuits and open and close same.
    Type: Application
    Filed: October 26, 2015
    Publication date: November 9, 2017
    Applicant: LS Cable & System LTD.
    Inventors: Sung-Han YOU, Jae-Sun LEE, Young-Sun KIM, Jae-Hun JUNG, Un-Kyu PARK
  • Publication number: 20170324283
    Abstract: An IPT system 1 including: an IPT transmitter 2 including a drive circuit 6 for varying the current supplied to a primary coil 7; an IPT receiver 3 including a pick up coil 9 magnetically coupled with the primary coil 7; a first magnetic near field communication system for transmitting access data via magnetic coupling between the primary and pick up coils; and a second communication system 13 for transmitting information between the IPT receiver and the IPT transmitter that utilises the access data to encode and decode communications sent via the second communications system.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Applicant: PowerbyProxi Limited
    Inventor: Robert WALTON
  • Publication number: 20170324284
    Abstract: An electronic actuator is made up of a polyphase brushless motor comprising a rotor provided with permanent magnets and secured to an output shaft, and a stator supporting coils and providing the magnetic drive of the rotor, a first electrical connection assembly powering the coils, said stator being built into a stator module made up of a material which coats the wound stator as well as the first electrical connection assembly. The rotor is built into a rotor module made up of a flange coating a bearing that guides the shaft of the rotor. The stator module and the rotor module have elements for indexing and for attachment relative to one another.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 9, 2017
    Applicant: MMT SA
    Inventors: Gaël ANDRIEUX, Pascal THIBAUT, Gaëtan RIOU
  • Publication number: 20170324285
    Abstract: A stator for an electric motor, in particular the steering motor of a motor vehicle, comprising a cylindrical stator yoke and a stator star joined therewith and having a number of radially outwardly directed stator teeth, the tooth tips thereof, in the assembly state, resting on the inner circumference of the stator yoke in corresponding connection points. The tooth tips on the stator star side, in the assembly state, in addition to being force-locked or frictionally locked with the connecting points on the stator yoke side in a press-fit, are also integrally bonded thereto.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Applicant: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft
    Inventors: Gerhard BROHM, Matthias KOCH, Peter PSZOLA, Jásmin KURBEGOVIC-ZRNIC
  • Publication number: 20170324286
    Abstract: A stator includes a stator core having slots arranged in a circumferential direction and a stator coil formed by wave-winding continuous coil wires on the stator core. Each of the continuous coil wires has in-slot portions received in the slots and turn portions each of which connects, on the outside of the slots, one pair of the in-slot portions. The stator coil is formed, by spirally rolling a band-shaped coil wire bundle that is formed by bundling the continuous coil wires, into a cylindrical shape. In the coil wire bundle, the continuous coil wires are transposed at a plurality of locations. Moreover, in a range where the continuous coil wires extend in the circumferential direction of the stator core by one complete turn, at least one interval between adjacent transposition locations in the coil wire bundle is greater than or equal to the circumferential length of one turn portion.
    Type: Application
    Filed: November 6, 2015
    Publication date: November 9, 2017
    Applicant: DENSO CORPORATION
    Inventors: Akito AKIMOTO, Masayuki TAKIGUCHI, Atsuo ISHIZUKA
  • Publication number: 20170324287
    Abstract: Circulating currents are suppressed and thermal losses are reduced in a three-phase permanent-magnet-excited synchronous machine in a delta circuit. The machine has a stator in which, during operation, a voltage is induced by way of a magnetic field generated by magnetic poles of a rotor. A field strength of the magnetic field has, along a circumferential coordinate of the rotor, a profile formed from superimposition of a sinusoidal basic function and of sinusoidal harmonics of the basic function. Groove recesses and/or cavities are located in and/or under a circumferential face of the rotor that face the stator and follow an axial extent of the pole pitch of the rotor in their longitudinal extent and extend transversely with respect to the longitudinal extent along the circumferential coordinate in the region of the maximum values of at least the third harmonic and outside the maximum values of the basic function.
    Type: Application
    Filed: September 8, 2015
    Publication date: November 9, 2017
    Inventors: HAUKE EINFELD, RAINER HELMER
  • Publication number: 20170324288
    Abstract: A rotor for an electric motor which includes permanent magnets is formed so that the possibility of demagnetization of the permanent magnets is reduced. The rotor has at least one permanent magnet embedded in a magnetically conductive rotor core, and at least one flux path in the rotor core, for a magnetic flux caused by a magnetic stator field generated by a stator of the electric motor. The rotor core is realized, with respect to at least one of the flux paths, with a magnetically conductive shunt that bridges at least one of the permanent magnets for the magnetic flux that is caused by the stator field.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 9, 2017
    Inventor: LJUBOMIR ADZIC
  • Publication number: 20170324289
    Abstract: A motor rotor equipped with a cylindrical rotor core formed by stacking multiple electromagnetic steel plates, end plates and balance weights stacked at both ends of the rotor core, and multiple headed swaging pins penetrating and integrally connecting the rotor core, the end plates, and the balance weights, wherein spacers or washers formed of a harder material than the swaging pins are interposed between the seating surface of the balance weights and the heads of the swaging pins. Thus, resistance of the motor rotor to excessive excitation force can be increased and a decrease in fastening strength can easily be prevented without changing the structure integrally fastened together by the swaging pins.
    Type: Application
    Filed: October 27, 2015
    Publication date: November 9, 2017
    Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventors: Ichiro YOGO, Kazuhide WATANABE, Akinori YOSHIOKA
  • Publication number: 20170324290
    Abstract: An electric machine including a housing, and a stator mounted to the housing. The stator includes a plurality of laminations, a first end turn and a second end turn. A rotor shaft extends through the housing. A hybrid rotor module is coupled to the rotor shaft. The hybrid rotor module includes a clutch basket having a rotor carrier. The clutch basket houses one or more clutch assemblies. A rotor is mounted to the rotor carrier, and one or more openings are formed in the rotor carrier. The one or more openings direct coolant onto at least one of the stator, the first end turn, and the second end turn.
    Type: Application
    Filed: April 25, 2017
    Publication date: November 9, 2017
    Inventors: Bradley Duane Chamberlin, Sven Norbert Altlay, Jomon Kaniampalackal, Clemens Burger
  • Publication number: 20170324291
    Abstract: In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.
    Type: Application
    Filed: June 30, 2017
    Publication date: November 9, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koji TAMURA, Shuichi TAMURA, Akihiro YAMAMURA, Issei DOI, Hiroyuki MATSUO, Yasukazu NISHIMURA, Sachiko KAWASAKI, Akihiko MORI
  • Publication number: 20170324292
    Abstract: The present invention discloses a winding structure and method having a high power density, and motor applying the above. The winding of the present invention has a multilayer 2D structure, has a distributed structure with an electrical angle of 180 degrees and is manufactured in the form of a PCB, wherein each layer arranged only one phase winding. Each phase windings contains 2 layers, or 4 layers, or other even layers, of windings. The number of coil cycles in every layer is the same as the motor poles, the winding layers of a same phase are connected via a through hole, the connecting hole is arranged at a corner of an upper portion of the winding loop inside.
    Type: Application
    Filed: October 24, 2014
    Publication date: November 9, 2017
    Inventor: Lei Bi
  • Publication number: 20170324293
    Abstract: Stators are already known which in each case comprise an annular stator stack having grooves which are open towards an axis of the stator and in which an electrical winding is provided which comprises a plurality of winding branches. The plurality of winding branches each have a plurality of parallel wires for reducing the so-called skin effect. The parallel wires are arranged in the grooves, wherein the winding branches in their configuration each form a plurality of turns of a coil which are each part of an electrical coil, wherein a turn of a coil is formed in each case by two sides of a turn, lying in different grooves, of one of the winding branches and by a turn side connector which connects the two sides of a turn to one another. In electrical windings having parallel wires, an unfavourable wire position and a resulting linking of different magnetic flows may lead to disadvantageous compensating or circular currents which produce additional copper losses in the electric motor.
    Type: Application
    Filed: September 10, 2015
    Publication date: November 9, 2017
    Inventors: David Bauer, Patrick Heuser
  • Publication number: 20170324294
    Abstract: A wave winding for a stator of an electric machine is configured to be placed in a series of stator grooves located along a periphery of the machine to increase power and efficiency of the machine by avoiding losses, particularly during upper rotational speed range operation. The wave winding has at least two conductors for one respective phase of the machine. The conductors are interconnected in parallel and/or series and can be disposed at a given winding pitch in a number of at least two successive stator grooves of each magnetic pole and each phase of the machine in a sequence predefined for each phase and for one respective magnetic pole along the periphery of the machine. The predefined sequence at least of the conductors interconnected in parallel is transposed by at least one groove skip in at least one position along the periphery of the machine.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Inventors: Winfried SCHULZ, Hauke EINFELD
  • Publication number: 20170324295
    Abstract: A stator for a rotary electric machine includes a stator core including a stack of a plurality of steel sheets 36; a stator coil wound around teeth of the stator core; and a plurality of insulators interposed between the stator core and the stator coil. Each of the insulators has at least one engagement tab projecting toward a side surface of a tooth. Each of the steel sheets 36 has a plurality of tooth portions 40 that form the teeth when the steel sheets 36 are stacked. Each of some of the plurality of tooth portions 40 has a notch 42 formed on a side surface of the tooth portion 40, the notches 42 forming an engagement recess in which the engagement tab is hooked when the steel sheets 36 are stacked. The stator core is formed by rotating and stacking the plurality of steel sheets 36.
    Type: Application
    Filed: September 10, 2015
    Publication date: November 9, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takeshi TOMONAGA
  • Publication number: 20170324296
    Abstract: An exemplary electric motor includes a power entry compartment, a power connection compartment, a removable cover, and a sealing member positioned between the power entry compartment and the power connection compartment to create a moisture-tight seal between the power entry compartment and the power connection compartment. The removable cover at least partially encloses or seals the power entry compartment and the power connection compartment. The power entry compartment receives the electrical wires that power the electric motor. The sealing member between the power entry compartment and the power connection compartment includes at least one wire channel to allow wires that power the electric motor to enter the power connection compartment from the power entry compartment. The power connection compartment houses one or more components used to make the electrical connections between the electrical wires and the motor.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Inventors: Ryan Matthew Fritts, David Kent Puterbaugh
  • Publication number: 20170324297
    Abstract: A drive device includes: a rotor and a stator; a case housing the rotor and the stator; a brake rotor that is arranged on the outside of the case and rotates in conjunction with the rotation of the rotor; a brake caliper that stops the rotation of the brake rotor by coming in contact with the brake rotor; and a ventilation membrane that is attached to the case, stops fluid or solids from penetrating inside the case from outside the case and also has formed therein multiple pores that permit gas to flow between inside and outside. The case has an output part that supports the rotor and a stator holding part that supports the stator. The ventilation membrane is attached to the stator holding part.
    Type: Application
    Filed: November 19, 2015
    Publication date: November 9, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Koji FURUUCHI, Toshiaki MASAKI, Ryoichi MATSUSHIMA, Hideki HAYAMA, Takahisa KUSUURA
  • Publication number: 20170324298
    Abstract: A circulation pump assembly, with a wet-running electrical drive motor (4), includes a pump casing (6) as well as a motor housing (22) which is connected to the pump casing (6). The motor housing (22) is a combined stator and electronics housing that accommodates a stator (18) of the drive motor (4) as well as motor electronics (34). The motor housing (22), at a first axial end (24) facing the pump casing (6), is closed by an air gap sleeve (16) of the drive motor. The motor housing (22), at a second axial end (26) which is away from the pump casing (6), includes an opening (42) closed by a cover (28). An interior of the motor housing (22), in a region adjacent the first axial end (24), is filled with a potting mass (40) surrounding the stator (18) and the motor electronics (34).
    Type: Application
    Filed: April 28, 2017
    Publication date: November 9, 2017
    Inventors: Pino BRÖSAMLE, Georg BLASER
  • Publication number: 20170324299
    Abstract: A submersed electric motor includes a stator assembly arranged within an annular insulation chamber, and a stator with stator windings and a capacitive electric starter which is connected electrically thereto. The insulation chamber is formed between an outer tubular jacket, an inner tubular jacket, which is coaxial to the outer tubular jacket, with two annular end covers adapted to close the annular interspace between the outer jacket and the inner jacket. The submersed electric motor further includes a rotor arranged inside the inner tubular jacket. The capacitive electric starter includes at least two capacitors, which are mutually complementary, and have a transverse cross-section with an arc-like profile and are connected in parallel to each other.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 9, 2017
    Inventors: Francesco SINICO, Giuliano MORETTO
  • Publication number: 20170324300
    Abstract: A motor includes: a motor main body; a power board including a switching element and electrically connected to the motor main body; a control board electrically connected to the power board and disposed on an axial counter output side of the motor main body; a control board holder attached to the motor main body to hold the control board; a sensor magnet located on a counter output side of a stator and fixed to a shaft; a rotation sensor attached to the control board to face the sensor magnet; and a power board case directly or indirectly attached to the motor main body to hold the power board. The power board is positioned radially outward of the motor main body. Board surfaces of the power board are inclined with respect to board surfaces of the control board.
    Type: Application
    Filed: October 17, 2015
    Publication date: November 9, 2017
    Inventor: Yoshiaki YAMASHITA
  • Publication number: 20170324301
    Abstract: Linear actuator system comprising a linear actuator and at least one box, such as a control box containing a control and possibly also a mains-based power supply or a battery box with a rechargeable battery pack. The linear actuator system further comprises a fastening means for the box, wherein the fastening means is constituted by an elongated item with a rectangular outline and a square cross-section. The box has a groove for receiving the fastening means. The fastening means and the groove are constituted with mutually interacting releasable locking connections. The fastening means can be designed as an independent item that can be fastened where the box is to be placed. The fastening means can also be used to interconnect two or more boxes by fastening the fastening means to a box. Alternatively, the fastening means can be formed as an integral part of the box.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Inventor: Rolf JØRGENSEN
  • Publication number: 20170324302
    Abstract: A linear actuator system comprising a linear actuator having a housing and an outer tube, which with a rear end is secured to a side of the housing at a front end thereof. The outer tube surrounds an electric motor driven spindle unit and an activation element. The linear actuator system further comprises a control box having a control, where the control box is arranged in the angle between the housing and the outer tube on the linear actuator. The control box is fastened with a mounting bracket to the outer tube on the linear actuator. The mounting bracket comprises a tubular portion, whereby it can be pushed in over the outer tube and the mounting bracket and the control box are also designed with interacting fastening means for fastening the control box to the mounting bracket. The tubular portion of the mounting bracket has an axially extending slit and the interacting fastening means between the mounting bracket and the control box are constituted on both sides of the slit.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Inventor: Rolf JØRGENSEN
  • Publication number: 20170324303
    Abstract: Multiple arrays of linear motors and generators are combined in a radial configuration to provide high mechanical efficiency to deliver power in a single plane of motion to a common crankshaft. Magnet core assemblies for the motors and generators use powerful rare earth magnets positioned within an outer flux containment shell comprising a highly-magnetically-permeable ferrous-alloy to provide high power density. The motor magnet stack is attached directly to a link rod that connects to the crankshaft. Pulsed power is provided to electromagnetic coils coils by microcomputer control, and coil energy is recovered at the ends of the linear stroke. A controller energizes the coils in certain combinations of coil location and polarity in order to produce bi-directional mechanical motion. Energy that is released when coils are switched off is harvested as voltage pulses returned to standby batteries or capacitors, or the electrochemical cells.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Applicant: Juiced Planet, LLC
    Inventor: G. Michael Click
  • Publication number: 20170324304
    Abstract: In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 9, 2017
    Inventors: Koji ITO, Masanori YASUDA, Shinji MAKITA, Jun YAMAOKA, Masao TOKUNAGA, Etsuro YOSHINO, Junichi ASAMA
  • Publication number: 20170324305
    Abstract: A stator housing has an annular wall including a first end, a second end, an outer surface and an inner surface defining an interior cavity. A stator is arranged within the interior cavity. The stator includes an outer surface portion, a first end turn and a second end turn. A coolant annulus extends about at least a portion of the stator housing. The coolant annulus includes at least one coolant spray passage arranged to direct a spray of coolant at one of the first end turn and the second end turn. A coolant seal and distributor is coupled to the stator housing at the first end sealing against the stator. The coolant seal and distributor includes one or more coolant spray nozzles arranged to direct a spray of coolant onto the other of the first end turn and the second end turn.
    Type: Application
    Filed: April 18, 2017
    Publication date: November 9, 2017
    Inventors: Bradley Duane Chamberlin, Sven Norbert Altlay, Jomon Kaniampalackal, Clemens Burger, Timothy Jay Sailors, JR.
  • Publication number: 20170324306
    Abstract: In this rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion such that first rectifying element connecting portions are disposed in a loosely fitted state inside a second penetrating aperture that is formed on the second rectifying element holding portion, and second rectifying element connecting portions are disposed in a loosely fitted state inside a first penetrating aperture that is formed on the first rectifying element holding portion; first leading electrodes of a plurality of first rectifying elements respectively extend axially and are connected to each of the first rectifying element connecting portions; and second leading electrodes of a plurality of second rectifying elements respectively extend axially and are connected to each of the second rectifying element connecting portions.
    Type: Application
    Filed: November 21, 2014
    Publication date: November 9, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI, Kyoko HIGASHINO
  • Publication number: 20170324307
    Abstract: A stator for an electric motor or generator, the stator comprising a circumferential support having a plurality of first engagement elements distributed about the circumferential support, a first resiliently deformable element having a first temperature sensing element mounted on the circumferential support, a plurality of teeth for receiving coil windings, wherein each tooth includes a second engagement element to allow engagement with a first engagement element on the circumferential support for allowing each tooth to be mounted on the circumferential support, wherein coil windings on a tooth are arranged to engage with the first temperature sensing element when the tooth is being mounted to the circumferential support with the first resiliently deformable element being arranged to deform upon the coil windings on the tooth engaging with the first temperature sensing element to move the temperature sensing element from a first position to a second position.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 9, 2017
    Inventors: Gareth Roberts, Jamie Bell, John P. Foulsham
  • Publication number: 20170324308
    Abstract: A method and a device for engendering rotation of a rotor relative to a stator. Stator teeth may comprise a mutually coupled coil winding pair, and a driver circuit may drive current through a first coil winding of the mutually coupled coil winding pair to generate a current on a second coil winding of the mutually coupled coil winding pair. The driver circuit may drive charge through the second coil winding to apply a torque to a rotor tooth. The driver circuit may also recapture and store charge to drive through the second coil winding.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Inventor: David Victor Pietromonaco
  • Publication number: 20170324309
    Abstract: A flexible high-power control device is disclosed for controlling at least one high-power electrical generating/consuming device which has a plurality of electrical terminals and a housing with a non-planar surface and is thermal-conductively connected to an active cooling unit. The flexible high-power control device comprises a flexible thermal-conductive interfacial insulation substrate, at least one circuit layer, and at least one electronic element. The interfacial insulation substrate is attached to the non-planar surface of the electrical generating/consuming device. The circuit layer, which is disposed on the interfacial insulation substrate, includes a plurality of electrical terminals which are electrically connected to the electrical terminals of the electrical generating/consuming device. The electronic element is electrically mounted on the circuit layer to form a control circuit for controlling the electrical generating/consuming device.
    Type: Application
    Filed: September 10, 2016
    Publication date: November 9, 2017
    Inventors: An-Tai Huang, Chun-Hung Lin
  • Publication number: 20170324310
    Abstract: The brush-holder regulator comprises a casing made from an insulating material suitable for being mounted on a rear bearing of an alternator and forming a one-piece assembly with at least one housing suitable for containing brushes allowing an electrical connection to be established with an excitation winding of a rotor of the alternator, an electronic control component (22) connected electrically to a trace circuit (21) overmoulded in the casing, and a cooling radiator (24) for the control component. According to the invention, the control component comprises a back electrode (225) on which the radiator (24) is mounted, the back electrode (225) and the radiator (24) being in electrical and thermal contact and rigidly attached to a portion (216) of the trace circuit.
    Type: Application
    Filed: October 26, 2015
    Publication date: November 9, 2017
    Inventors: Laurent LEDOUX, Henri-Charles SMAEGHE, Hugues TEMPEZ
  • Publication number: 20170324311
    Abstract: A switched reluctance motor includes a stator having an annular stator core which has teeth portions provided with poles, which are arranged in a circumferential direction of the stator core, wherein the stator core has a circular cross-sectional contour orthogonal to an axis thereof, a winding wound around the teeth portion, and a rotor having a rotor core which has salient pole portions provided with poles, which are arranged at regular intervals in a circumferential direction of the rotor core. The number of the poles with the salient pole portions is 5 poles×N, and the number of the poles with the teeth portion is 6 poles×N (The above two “N” are an equal natural number.). The salient pole portion has inclined surfaces in which both end corners in the circumferential direction are chamfered.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 9, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Takahiro TSUTSUI
  • Publication number: 20170324312
    Abstract: A stator for a generator of a wind turbine is provided. The stator comprises a magnetic frame, magnets, and magnetic sections spaced from each other. The magnets are used to fasten the magnetic sections to the frame. Further, a flux switching machine for a wind turbine, in particular a generator for a wind turbine, is provided. The flux switching machine comprises a rotor and a stator.
    Type: Application
    Filed: November 13, 2015
    Publication date: November 9, 2017
    Inventor: Boumedyen NEDJAR
  • Publication number: 20170324313
    Abstract: Provided is a motor having a rotary unit includes a shaft extending along the center axis, an armature core attached to the shaft and having six teeth radially extending toward a radial direction, a coil group of 6·n (however, n is 1 or 2) concentrated winding coils installed at the six teeth, using a coil by concentratedly winding a lead wire around one teeth as a concentrated winding coil, and a commutator electrically connected to the coil group. The stationary unit includes a pair of field magnets having same polarity facing each other, having the armature core disposed therebetween and a housing having a cylindrical yoke accommodating the pair of field magnets, wherein in the yoke, a pair of portions facing each other between the pair of magnets in a circumferential direction is a pair of magnetic poles directly facing the teeth of the armature core while having an opposite polarity to that of the magnetic poles, and a brush group contacting the commutator.
    Type: Application
    Filed: March 13, 2015
    Publication date: November 9, 2017
    Inventors: Naohiro HASHIZUME, Shunsuke TAKAHASHI, Kuniaki TANAKA, Keisuke SAITO
  • Publication number: 20170324314
    Abstract: The invention relates to a commutator motor (10), particularly as part of a windscreen-wiper motor (100), having at least four magnet elements (11 to 14) which are arranged on a reference-circle diameter around an axis of rotation of an armature shaft (2) with polarity that alternates in the circumferential direction, and having an armature (15) with armature slots (N1 to N18) and armature teeth (Z1 to Z18), wherein winding wires (20) having a multiplicity of windings (27, 28) in each case for constructing coils (C1 to C9) are arranged in the armature slots (N1 to N18), wherein a start (21) and an end (22) of a winding wire (20) is electrically conductively connected to a commutator hook (H1 to H18) in each case, wherein a winding wire (20) has two winding-wire sections (25, 26), which are arranged in the region of different magnet elements (11 to 14) in such a manner that a first winding-wire section (25) with a first number of windings (27) in a first winding direction is assigned to a first magnet element
    Type: Application
    Filed: December 9, 2015
    Publication date: November 9, 2017
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Matthias Schoendeling, Markus Stubbe
  • Publication number: 20170324315
    Abstract: A linear actuator includes: a first tube provided with coils placed there inside, the coils being held by a yoke; a rod configured to be movable in the yoke in an axial direction; and permanent magnets that are held by the rod while being lined up in the axial direction so as to oppose the coils. The first tube includes an inner tube and a base portion. The inner tube has a restriction portion projecting radially inward at one end thereof. The base portion is coupled to the other end of the inner tube. The yoke is inserted into the inner tube, and fixedly held between the restriction portion and the base portion.
    Type: Application
    Filed: October 27, 2015
    Publication date: November 9, 2017
    Applicant: KYB Corporation
    Inventor: Kousuke SATOU
  • Publication number: 20170324316
    Abstract: There is provided a semiconductor device capable of decreasing a switching loss. The semiconductor device has first semiconductor elements (Su)-(Sw) and second semiconductor elements (Sx)-(Sz) connected in series, in which the first semiconductor element includes a low switching loss semiconductor element having a switching loss which is smaller than a switching loss of the second semiconductor element and the second semiconductor element includes a low conduction loss semiconductor element having a conduction loss which is smaller than a conduction loss of the first semiconductor element.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventor: Ryu ARAKI
  • Publication number: 20170324317
    Abstract: A method and circuitry for switching current to a load. The circuitry for supplying a current to a load comprises a sensor configured to sense the current supplied via a sensor input and to produce an output signal representing a time derivative of the sensed current, and a switch configured to switch the current, a switching frequency of the switch being controlled by said output signal representing a time derivative of the sense current, thereby producing a switched output current to the load.
    Type: Application
    Filed: November 12, 2014
    Publication date: November 9, 2017
    Inventor: Lars HANSSON
  • Publication number: 20170324318
    Abstract: The present invention concerns a device for controlling the operation of a power module composed of switches, each switch being composed of a plurality of power dies connected in parallel, characterized in that the device comprises, for each power die of the power module: a temperature sensor to sense the temperature of the power die, a current sensor to sense the current going through the power die, a gate interrupt circuit to interrupt the signal provided to the power die if the sensed current is higher than a predetermined current threshold, a controller to reduce the conducting time of the die if the sensed temperature of the power die is higher than the average die temperature across the power dies of at least one switch.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Jeffrey EWANCHUK, Stefan MOLLOV
  • Publication number: 20170324319
    Abstract: A power controller for an AC power converter connected in series with a load and receiving power from or delivering power to a power source, the power controller comprising: a radial control block controlling a radial component of an electrical parameter of the AC power converter; and a chordal control block controlling a chordal component of the electrical parameter of the AC power converter. Also provided is a power system comprising one or more loads each connected in series to a power converter each controlled by a power controller as described above. There is also provided a method of controlling an AC power converter connected in series with a load and receiving power from a power source, the method comprising: controlling a radial component of an electrical parameter of the AC power converter; and controlling a chordal component of the electrical parameter of the AC power converter.
    Type: Application
    Filed: November 13, 2014
    Publication date: November 9, 2017
    Inventors: Kwan Tat Mok, Siew Chong Tan, Shu Yuen Ron Hui
  • Publication number: 20170324320
    Abstract: A method of adjusting an output voltage sensing error of a low voltage DC-DC converter to adjust a difference between a value obtained by sensing an output voltage of a low voltage DC-DC converter and a reference value controlling the low voltage DC-DC converter, thereby improving control accuracy is provided. The method of correcting an output voltage sensing error of a low voltage DC-DC converter includes applying a test voltage to an output of the LDC by voltage application equipment, sensing a voltage of the output of the LDC by a voltage sensing circuit and adjusting by a controller a voltage reference map included in an LDC controller that outputs a voltage reference value of the LDC, based on an error between the test voltage and a voltage sensing value sensed by the voltage sensing circuit.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 9, 2017
    Inventors: Shin Hye Chun, Gi Bong Son, Hyun Wook Seong
  • Publication number: 20170324321
    Abstract: A boost DC-DC power converter comprising a semiconductor switch arrangement comprising a plurality of series connected semiconductor switches. A first capacitor is connected between a first intermediate node of a first leg of the semiconductor switch arrangement and a second intermediate node of a second leg of the semiconductor switch arrangement. A control circuit is coupled to respective control terminals of the plurality of semiconductor switches. A load sensor is configured to detect a load current and/or a load voltage of a load circuit connectable to at least a first DC output voltage of the DC-DC power converter. The control circuit being further configured to adjusting one or more operational parameters of the boost DC-DC power converter based on the detected load current and/or load voltage.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 9, 2017
    Inventor: Mikkel Høyerby
  • Publication number: 20170324322
    Abstract: The present disclosure relates to a supply voltage generating circuit and a switching power supply having the circuit. The supply voltage generating circuit provides a supply voltage for a power terminal of a control circuit in the switching power supply. The supply voltage generating circuit includes a switching circuit, a unidirectional conduction circuit and an energy storage circuit. In a time period during which a main power transistor is turned off, the switching circuit is turned off and a rectifying device provides a current to the energy storage circuit through the unidirectional conduction circuit, in a case that the supply voltage is smaller than a predetermined voltage reference; and the switching circuit is turned on and the current output from the rectifying device flows to the switching circuit, in a case that the supply voltage is larger than or equal to the predetermined voltage reference.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Inventor: Jian Deng
  • Publication number: 20170324323
    Abstract: A voltage converter provides a positive voltage and a negative voltage with a single inductor. The voltage converter has a first switch, a second switch, a third switch and a fourth switch switched periodically, wherein each switching period comprise a first time period, a second time period and a third time period, and wherein: during the first time period, the first switch and the fourth switch are turned on, whereas the second switch and the third switch are turned off; during the second time period, the first switch and the third switch are turned on, whereas the second switch and the fourth switch are turned off; and during the third time period, the second switch and the fourth switch are turned on, whereas the first switch and the third switch are turned off.
    Type: Application
    Filed: March 30, 2017
    Publication date: November 9, 2017
    Inventors: Bairen Liu, Licheng Sheng, Bo Yu
  • Publication number: 20170324324
    Abstract: In some examples, a voltage regulator comprises an amplifier stage and a pass element configured to receive an output of the amplifier stage and an output of a feedback circuit. The voltage regulator further comprises the feedback circuit configured to receive an output of the pass element, wherein the feedback circuit includes a differentiator stage coupled to a feedback output stage, and wherein the differentiator stage comprises a single capacitor configured to differentiate an output voltage of the pass element.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 9, 2017
    Inventor: Fabio Ballarin
  • Publication number: 20170324325
    Abstract: In accordance with embodiments of the present disclosure, a controller for controlling at least one switch of a switching converter may include a current estimator configured to determine an estimated inductor current through an inductor of the switching converter based on a previous sample of a current through the inductor and a switch control configured to control activation and deactivation of the at least one switch based on the estimated inductor current.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventor: Xiangcheng WANG
  • Publication number: 20170324326
    Abstract: Disclosed are multilevel buck converters, and controllers and methods for operating such converters. Embodiments improve the voltage gain (Vo/Vin) of multi-level DC-DC converters, such as three-level converters, that is imposed by a duty cycle limitation in conventional approaches. According to certain embodiments, the duty cycle of switches is controlled to so that the converter output voltage is increased.
    Type: Application
    Filed: April 6, 2017
    Publication date: November 9, 2017
    Inventors: Tianshu Liu, Yan-Fei Liu