Patents Issued in March 8, 2016
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Patent number: 9281698Abstract: A battery pack having a battery management system is disclosed. In some embodiments, the battery pack includes a battery management system, which includes a detector detecting a voltage and a current of each of the battery cells, a current monitor receiving current information detected by the detector, and a controller receiving voltage and current information from the detector and current information from the current monitor, and calculating capacities of the battery cells based on the receive information.Type: GrantFiled: July 25, 2012Date of Patent: March 8, 2016Assignee: Samsung Display Co., Ltd.Inventor: Jungsoo Son
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Patent number: 9281699Abstract: A mobile device may be provided that includes an input port, an adjusting device, and a voltage regulator. The input port may receive power from an alternative power source or a DC power supply. The mobile device may receive the power from the input port, adjust a power characteristic of the power, and provide the power having the adjusted power characteristic. The voltage regulator may receive the adjusted power and provide a regulated voltage to a load.Type: GrantFiled: December 27, 2012Date of Patent: March 8, 2016Assignee: Intel CorporationInventors: Lilly Huang, Wayne L. Proefrock, Krishnan Ravichandran
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Patent number: 9281700Abstract: A power supply system has an n-phase electric machine, where n?1, and a controllable energy store serving to control and to supply electrical energy to the electric machine. The controllable energy store has n parallel power supply arms which each have at least two series-connected energy storage modules which each include at least one electrical energy storage cell with an associated controllable coupling unit, are connected on one side to a reference bus and are connected on the other side to one respective phase of the electric machine. In dependence on control signals, the coupling units either bridge the respectively associated energy storage cells or connect the respectively associated energy storage cells into the power supply arm.Type: GrantFiled: August 25, 2011Date of Patent: March 8, 2016Assignee: ROBERT BOSCH GMBHInventors: Peter Feuerstack, Erik Weissenborn, Martin Kessler
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Patent number: 9281701Abstract: A charging system having a charging device with a groove for receiving a mobile/portable device for charging is provided having a magnetic core located in a housing of the charging device with the magnetic core having a base and two legs that are located around the groove. A coil is wrapped around the base and a driver circuit is connected to the coil as well as to an external power source. A power receiver is located in a mobile/portable device that can be placed in the groove in the charging device. The power receiver includes a receiver magnetic core as well as a receiving coil wrapped around the receiver magnetic core for receiving an inductive current from the charging device. A charging circuit is connected to the receiving coil and adapted to be connected to the battery of the mobile/portable device for charging.Type: GrantFiled: November 16, 2012Date of Patent: March 8, 2016Assignee: ATI Technologies ULCInventors: Yvan Large, Philippe Blanchard
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Patent number: 9281702Abstract: The present invention relates to an electric storage unit group, a charger, an electronic device, an electric vehicle, a method for charging the electric storage unit, a method for discharging the electric storage unit group, a method for supplying and receiving power, and a method for determining a charging/discharging route in the electric storage unit group, which can provide a method for charging the electric storage unit group in which a plurality of electric storage units are connected in a desired form. The method for charging the electric storage unit group is a method for charging a rechargeable battery cell in an electric storage unit group in which a plurality of electric storage units having rechargeable battery cells are linearly or reticulately connected. At an upstream side of the electric storage unit group, the electric storage unit group is connected to a power supply for charging the electric storage units.Type: GrantFiled: September 9, 2011Date of Patent: March 8, 2016Assignee: SONY CORPORATIONInventor: Shin Hotta
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Patent number: 9281703Abstract: Methods and systems for depowering a rechargeable battery in a rapid, yet controlled, manner. The methods comprise (i) providing a depowering medium comprising expanded graphite (and optionally, one or more dispersible non-ionic electric conductors) dispersed in a substantially non-ionic aqueous medium; (ii) contacting terminals of the battery with the depowering medium; and (iii) maintaining contact between the depowering medium and terminals for a period of time sufficient to depower the battery. The systems comprise (i) the depowering medium; and (ii) a container configured to receive a battery and the depowering medium such that the battery body is contacted with the depowering medium prior to the terminals.Type: GrantFiled: December 5, 2012Date of Patent: March 8, 2016Assignee: GM Global Technology Operations LLCInventors: Mahmoud H. Abd Elhamid, Tao Xie, Tao Wang, Ramona Y. Ying, Robert S. Conell
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Method of controlling a load current, load current control device, and mobile device having the same
Patent number: 9281704Abstract: A method of controlling a load current is provided. By the method, a battery voltage control operation is begun when a battery voltage becomes lower than a first threshold value, whether a gradient of the battery voltage is a positive gradient or a negative gradient is determined at an interval of a reference or, alternatively, predetermined control time, the load current is controlled based on the gradient of the battery voltage at an interval of the reference or, alternatively, predetermined control time, and the battery voltage control operation is finished when the battery voltage becomes higher than a second threshold value.Type: GrantFiled: August 5, 2013Date of Patent: March 8, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Hun Heo, Sang-Hyun Cho, Hyung-Jong Ko -
Patent number: 9281705Abstract: An electronic cigarette case and a method for charging an electronic cigarette through it are provided. The electronic cigarette case comprises a case body having a charging interface, it further comprises a controller, a trigger switch, a charging detection module and an electronic cigarette charging output module, the trigger switch is set close to the charging interface and will be triggered when the electronic cigarette has been inserted into the charging interface, in case the controller has found out that the trigger switch has been triggered, it will control the electronic cigarette charging output module to enter a charging mode; in case the charging detection module has found out that the electronic cigarette has been fully charged, the controller will control the electronic cigarette charging output module to enter an ultra low standby mode.Type: GrantFiled: August 15, 2013Date of Patent: March 8, 2016Assignee: HUIZHOU KIMREE TECHNOLOGY CO., LTD. SHENZHEN BRANCHInventor: Zhiyong Xiang
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Patent number: 9281706Abstract: Methods and devices are disclosed including a wireless charging method comprising transmitting a wireless charging signal, monitoring at least one of an amplitude and a phase of the wireless charging signal, determining whether the at least one of an amplitude and phase is within a predetermined range of at least one predetermined value and, if it is determined that the at least one of an amplitude and phase is not within the predetermined range of the at least one predetermined value, stopping transmission of the wireless charging signal.Type: GrantFiled: January 23, 2014Date of Patent: March 8, 2016Assignee: Qualcomm Technologies International Ltd.Inventor: Anthony Lawrence McFarthing
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Patent number: 9281707Abstract: Described is a system and method for charging a battery. The system includes a processor powered by a battery; and a controller determining a remaining battery charge of the battery. The controller sets a first charge current to recharge the battery when the remaining battery charge is insufficient to operate the processor. The controller wakes the processor when the battery has been recharged so that the remaining battery capacity is sufficient to operate the processor. The processor negotiates for a second charge current to recharge the battery. The controller sets the second charge current when the processor successfully negotiated.Type: GrantFiled: July 24, 2012Date of Patent: March 8, 2016Assignee: Symbol Technologies, LLCInventors: Kevin Cordes, Christopher R. Paul, David T. Lundquist, Joseph Cabana
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Patent number: 9281708Abstract: A device for inductive transfer of electric energy from a stationary unit including at least one primary inductance to a vehicle that is adjacent to the unit and has at least one secondary inductance. The stationary unit has a device for detecting the presence of an electrically conductive object in a predetermined area that borders the primary inductance. The area can be between the primary and secondary inductance during the inductive energy transfer. The device has at least one measuring inductance, a measuring unit for measuring the impedance of the measuring inductance and an evaluation unit connected to the measuring unit. Preferably, the device is equipped with a plurality of measuring inductances which form a regular two-dimensional arrangement extending approximately in one plane, the plane lying perpendicular to the main direction of the magnetic field that is generated by the primary inductance during operation.Type: GrantFiled: June 30, 2010Date of Patent: March 8, 2016Assignee: CONDUCTIX-WAMPFLER GMBHInventors: Mathias Wechlin, Andrew Green
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Patent number: 9281709Abstract: Disclosed herein are a power receiving device for wireless charging and a portable electronic device having the same. The power receiving device for wireless charging include a body having a receiving space formed therein; and a charging kit detachably received in the receiving space, and including a coil formed to receive power by magnetic coupling with a power supplying device and a charging circuit configured to charge a battery by electromotive force induced in the coil.Type: GrantFiled: June 3, 2011Date of Patent: March 8, 2016Assignee: Hanrim Postech Co., LTD.Inventors: Yoon-Sang Kuk, Myung-Woock Jeong
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Patent number: 9281710Abstract: A bypass control wireless charging device includes a logic control unit electrically connected to a wireless transmission unit, a full-bridge inverter, a buck-boost unit, a discharging switch unit and a back current prevention unit, wherein the discharging switch unit electrically connected to a battery, and a inlet terminal of the back current prevention unit electrically connected to a charging terminal, when the charging terminal electrically connected to an external power, the back current prevention unit turned on by the logic control unit to turned off the discharging switch unit and the input voltage of the external power boosted by buck-boost unit and converted DC to AC by the full-bridge inverter. The coil of the wireless transmission unit provided the emission electricity with AC induction to achieve the purpose of wireless charging for the electronics while received the emission electricity of the wireless transmission unit.Type: GrantFiled: November 20, 2013Date of Patent: March 8, 2016Inventor: Ming-Hsiang Yeh
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Patent number: 9281711Abstract: Systems, methods and apparatus are disclosed for amplifiers for wireless power transfer. In one aspect a method is provided for controlling operation of an amplifier, such as a class E amplifier. The method may include monitoring an output of the amplifier. The method may further include adjusting a timing of an enabling switch of the amplifier based on the output of the amplifier.Type: GrantFiled: May 22, 2014Date of Patent: March 8, 2016Assignee: QUALCOMM IncorporatedInventors: Linda S. Irish, Stanley Slavko Toncich, William H. Von Novak, III
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Patent number: 9281712Abstract: An electrical power conditioning for an electrical power conditioning system comprises a first terminal for connecting either an electrical power generator or a battery; a second terminal for connecting either a battery or an electrical power generator, respectively; a third terminal for connecting a power bus; characterized in that it further comprises: a reactive structure connected between said second terminal and the ground, formed by a serial connection of a first inductor, a capacitor and a second inductor, first and second nodes being provided between the first inductor and the capacitor, and between the capacitor and the second inductor, respectively; at least one output switching structure for connecting the third terminal to the first and second nodes through respective first and second switches and a third in-series inductor; and at least one input switching structure for connecting the first terminal to at least the first node through a third switch.Type: GrantFiled: December 23, 2010Date of Patent: March 8, 2016Assignee: AGENCE SPATIALE EUROPEENNEInventor: Olivier Mourra
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Patent number: 9281713Abstract: A system and a method for electricity management are disclosed. The system includes a data management unit, a cabinet, a control unit, an uninterruptible power supply apparatus and a power switch. The cabinet is powered by an external power supply. When the data management unit sends a testing instruction to the cabinet, the control unit controls the power switch to shut down the external power supply such that the cabinet is powered by the uninterruptible power supply apparatus instead. The control unit measures a set of battery parameters of the uninterruptible power supply apparatus, computes a power supply capacity of the uninterruptible power supply apparatus according to the set of battery parameters, and returns the power supply capacity to the data management unit.Type: GrantFiled: December 28, 2012Date of Patent: March 8, 2016Assignee: LITE-ON TECHNOLOGY CORPORATIONInventors: Chiou-Chu Lai, Ming-Yao Cheng, Chien-Chu Chen
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Patent number: 9281714Abstract: An uninterruptible power system includes a plurality of uninterruptible power units connected in parallel to input power. One uninterruptible power unit includes a rechargeable battery, a charging circuit that supplies a charging current to the rechargeable battery, and an output circuit that outputs power supplied from the rechargeable battery as output power. The uninterruptible power system includes a path switching unit in which switching of a path for power received among the charging circuit, the rechargeable battery and the output circuit in the plurality of uninterruptible power units is performed, and a control unit that controls the path switching unit so that switching of the path is performed according to states of the uninterruptible power units.Type: GrantFiled: December 17, 2012Date of Patent: March 8, 2016Assignee: NEC CORPORATIONInventor: Masakazu Isomura
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Patent number: 9281715Abstract: A backup power management system connectable to a primary power source and a secondary power source, and a method of operating the same. The system includes an enclosed housing that receives a control system including first and second controllers that are connected to a first transfer switch contactor and a second transfer switch contactor within the housing. Both the primary power source and a secondary power source are broken into two separate output supplies. The two separate output supplies from the primary power source and the secondary power source are each provided to one of the first and second transfer switch contactors. The control system sends signals to the first and second transfer switch contactors to control the movement of the contactors between first and second positions. The power management system can also include a load management controller to control the load on the secondary power source.Type: GrantFiled: October 2, 2013Date of Patent: March 8, 2016Assignee: Briggs & Stratton CorporationInventors: Sie Teong Lim, Robert J. Hurd, Sr., Kenny J. Stair, Brandon M. Batzler
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Patent number: 9281716Abstract: A power management system may include a generator controller. The generator controller may (i) operate the generator; and (ii) prohibit a transfer switch from supplying first or second power to an output of the transfer switch. In some systems, the first power may be primary power (e.g., from a primary power source such as a utility) while the second power is secondary power (e.g., from a secondary power source such as a generator). In other systems, the second power may be primary power while the first power is secondary power, or both the first and second power may be secondary power.Type: GrantFiled: January 9, 2013Date of Patent: March 8, 2016Assignee: Kohler Co.Inventors: Eric D. Albsmeier, Douglas W. Dorn, William Herman Gross, Andrew John Sember, Anthony J. Hackbarth
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Patent number: 9281717Abstract: In accordance with the present disclosure, a system and method for providing a battery back-up unit (BBU) for a rack-level power infrastructure is described. The system may include a chassis sized to fit within a commodity power supply unit (PSU) slot in a power distribution unit (PDU). A battery may be disposed within the chassis, and at least one power module coupled to the battery. The system may also include a power module controller coupled to the at least one power module, and a form-factor connector coupled to the power module controller and the at least one power module.Type: GrantFiled: February 1, 2012Date of Patent: March 8, 2016Assignee: Dell Products L.P.Inventors: Edmond I. Bailey, Joseph A. Vivio
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Patent number: 9281718Abstract: A system and method for controlling characteristics of supplied electrical power. Various aspects of the present invention may comprise an integrated circuit comprising a first circuit module that receives electrical power. The integrated circuit may comprise a second circuit module that monitors at least one characteristic of electrical power received by at least one of the first circuit module and the integrated circuit. The second circuit module may also communicate with a third circuit module regarding the monitored at least one characteristic. Various aspects of the present invention may comprise an integrated circuit comprising a first module that monitors at least one characteristic of electrical power received by a first electrical device that is external to the integrated circuit. The integrated circuit may also comprise a second module that communicates with a second electrical device, external to the integrated circuit, regarding the monitored at least one characteristic.Type: GrantFiled: June 21, 2005Date of Patent: March 8, 2016Assignee: Broadcom CorporationInventors: Pieter Vorenkamp, Neil Y. Kim
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Patent number: 9281719Abstract: A power transfer system includes a power transmission device and a power reception device which are capacitively coupled to allow electrical conduction therethrough in the manner of alternating current. The power transmission device includes an active electrode, a passive electrode, a step-up transformer, and a high-frequency voltage generating circuit. The power reception device includes an active electrode, a passive electrode, and a load circuit. A divider for voltage division based on load capacitances (C1 and C2) is provided between the active electrode and the passive electrode. The active electrode and the passive electrode have respective equivalent capacitances to ground (Ca and Cp) relative to the ground potential. A ground leakage current Ig is minimized by adjusting the values of the respective capacitances in an equivalent circuit so as to satisfy the relationship: C2/C1=Cp/Ca.Type: GrantFiled: August 7, 2012Date of Patent: March 8, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Keiichi Ichikawa, Henri Bondar
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Patent number: 9281720Abstract: A wireless power charging system includes an intermediate relay coil. In one aspect, a wireless power charging system is designed to charge a separate device having a receiver that includes a receiver coil. The separate device conforms to a specification for the wireless power charging system, which may be a public standard for wireless power charging systems. The wireless power charging system includes a transmitter and a relay coil resonator. The transmitter includes a driver coil that is driven by a power source. The relay coil resonator includes a relay coil that is used to inductively couple power from the driver coil to the receiver coil. The wireless power charging system is designed so that it satisfies Eqn. (11) above.Type: GrantFiled: May 31, 2013Date of Patent: March 8, 2016Assignee: ConvenientPower HK Ltd.Inventor: Xun Liu
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Patent number: 9281721Abstract: An electric motor (1) with permanent magnets includes a rotor (4), on which permanent magnets are fastened (6), and a stator (2). The stator includes a stator structure and coils (5) installed on the stator structure. The stator structure is realized by an assembly of at least three independent stator elements (21), assembled on a baseplate (3) with no direct mechanical linkage between them. Each stator element (21) is fastened onto the baseplate (3) of the motor by an adjusted fastener (31) and at least one anti-rotation element (32). Preferably, the stator elements (21) are made of a material that is a good heat conductor and electrical insulator, such as a ceramic.Type: GrantFiled: March 17, 2011Date of Patent: March 8, 2016Assignee: AIRBUS DEFENCE AND SPACE SASInventors: Jean Sperandei, Gilles Pupille
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Patent number: 9281722Abstract: An interior permanent magnet synchronous motor is provided. In the motor, a V-type recess is provided between adjacent permanent magnets within an outer surface of a rotor. The angle of the V-type recess ranges from 103° to 107°.Type: GrantFiled: March 14, 2013Date of Patent: March 8, 2016Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hoon Moon, Kyoung Bum Kim, Myung Gyu Kim, Ki Nam Kim, Hyoung Jun Cho, Yeon Ho Kim, Jung Shik Kim
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Patent number: 9281723Abstract: A rotary electric machine includes a stator; and a rotor including an iron core, which has a tubular connecting portion surrounding a shaft and 10 magnetic pole portions integrally formed with the connecting portion corresponding to a pole number, and a plurality of permanent magnets arranged between the magnetic pole portions. The iron core includes axially-penetrated magnet accommodating air gaps formed between the magnetic pole portions at the radial outer side of the connecting portion, and the permanent magnets are installed in the respective magnet accommodating air gaps such that a radial outer surface of each of the permanent magnets makes close contact with an inner surface of each of the magnet accommodating air gaps and such that a gap exists between a radial inner surface of each of the permanent magnets and the connecting portion.Type: GrantFiled: July 3, 2012Date of Patent: March 8, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji Watanabe, Toshiyuki Yamagishi, Takashi Nomiyama, Naotake Yoshizawa
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Patent number: 9281724Abstract: In a rotating electrical machine, the concentrated winding coil includes a single-layer coil, corresponding to one layer, wound in a first turn advancing mode with the wire forming sequential coil turns starting from one end of the insulating bobbin toward another end of the insulating bobbin and another single-layer coil, corresponding to one layer, wound in a second turn advancing mode with the wire forming turns starting from the other end of the insulating bobbin toward the one end of the insulating bobbin, with the single-layer coil and the other single-layer coil layered alternately to each other. The insulating bobbin includes a winding portion where the concentrated winding coil is formed, collars each formed at one of two ends of the winding portion and at least one projecting portion configured to disallow misalignment at a turn changeover start area in the first and second turn advancing modes.Type: GrantFiled: July 25, 2013Date of Patent: March 8, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Takashi Ishigami, Kenji Nakayama, Hiroshi Kanazawa
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Patent number: 9281725Abstract: A bearing assembly cooperates with a bearing seat formed in a bearing housing. The assembly includes a bearing having an inner ring, an outer ring and a rolling element in engagement with the inner ring and the outer ring, and an anti-rotation device. The anti-rotation device engages the outer ring of the bearing and with the bearing housing to limit the rotation of the outer ring of the bearing within the bearing seat formed in the bearing housing. The anti-rotation device includes a first feature for engagement with the outer ring of the bearing and a second feature for engagement with the bearing housing. The first feature and the second feature limit the rotation of the outer ring of the bearing within the bearing seat formed in the bearing housing.Type: GrantFiled: March 13, 2013Date of Patent: March 8, 2016Assignee: Regal Beloit America, Inc.Inventor: Matthew James Scott
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Patent number: 9281726Abstract: The invention relates to an actuator for operating a positioning element. A common requirement in such actuators is that the positioning element can be decoupled from the electric motor that drives the positioning element via a transmission. In some applications the actuators are so compact that the only way to decouple the actuator is to disassemble parts of the actuator. To connect the positioning element to the electric motor again, this however requires that the whole actuator is demounted so as to ensure that the disassembled parts are properly assembled. The present invention overcomes this problem by providing an actuator comprising two toothed wheels which by mutual displacement can be brought out of mesh and which each comprises at least two toothed rims positioned with a spacing corresponding to at least the width of one toothed rim.Type: GrantFiled: May 31, 2012Date of Patent: March 8, 2016Assignee: Linak A/SInventor: Claus H. Sorensen
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Patent number: 9281727Abstract: A user device may include one or more features on a surface of the user device, where a user may interact with the one or more features. In response to a user action with respect to one of the features, a particular sound, frequency, or change in frequency may be output. An augmented reality functional node (ARFN) may detect the sound or frequency and identify a particular operation that corresponds to the sound or frequency. The ARFN may then cause that operation to be performed within an environment.Type: GrantFiled: November 1, 2012Date of Patent: March 8, 2016Assignee: Amazon Technologies, Inc.Inventors: Christopher D. Coley, Menashe Haskin, Robert A. Yuan, Juli A. Satoh, William Thomas Weatherford
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Patent number: 9281728Abstract: An electric machine includes a stator device having axial first cooling channels, and second and third cooling channels. The third cooling channels are arranged in the first cooling channels and extend at least substantially along an entire axial length thereof. The stator device is configured for inflow and outflow of a liquid cooling medium at least partially through the second cooling channels and for the liquid cooling medium to be conducted through the third cooling channels. A rotor is arranged on a rotor shaft for rotation around a rotational axis. Limiting elements are mounted on the stator device axially on both sides to thereby bound an internal rotor space which is in communication with axial ends of the first cooling channels of the stator device to thereby establish an internal air-cooling circuit from the internal rotor space through the first cooling channels and back into the internal rotor space.Type: GrantFiled: March 27, 2013Date of Patent: March 8, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Klaus BĂĽttner, Klaus Kirchner, Michael MĂĽller
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Patent number: 9281729Abstract: A rotation detector provided in a motor unit according to an embodiment includes a first support and a second support, a pair of magnetic field generator, at least one magnetic field detector, and a first magnetic member and a second magnetic member. The pair of magnetic field generator is provided on the first support in a manner facing the second support, and has opposite polarities. The magnetic field detector is formed by winding a coil around a magnetic element whose magnetized direction changes in the longitudinal direction, and is provided on the second support in such a manner that a longitudinal-direction side of the magnetic element faces the first support. Each of the first magnetic member and the second magnetic member is made of a magnetic material, and covers a longitudinal-direction end of the magnetic field detector facing the first support.Type: GrantFiled: September 3, 2013Date of Patent: March 8, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Shiro Yoshidomi, Ikuma Murokita, Yuji Arinaga, Yasushi Yoshida, Jiro Muraoka, Shoji Oyama
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Patent number: 9281730Abstract: A motor driving system that changes a rotation speed of a motor pursuant to a speed command includes a main device including a drive circuit configured to drive the motor, an input device configured to input the speed command to the drive circuit, and a signal insulating unit configured to insulate the input device from the main device and to transmit the speed command from the input device to the drive circuit of the main device.Type: GrantFiled: July 24, 2013Date of Patent: March 8, 2016Assignee: NIDEC SERVO CORPORATIONInventors: Charles Simson Halason Silitonga, Toshihiro Okabe, Akiko Soma, Makoto Yajima
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Patent number: 9281731Abstract: Methods of precisely positioning a rotor of a machine into one or more service positions for the purpose of servicing the machine. In some embodiments, the machine includes A rotor and a stator segmented into multiple removable stator modules. During servicing, a stator-module replacement tool is precisely located in any one or more of multiple service positions corresponding to the multiple stator modules by selectively energizing the machine. In other embodiments, the machine includes a stator and a rotor having multiple removable permanent magnets corresponding respectively to multiple service positions. During servicing, the rotor is precisely located in any one or more of multiple service positions corresponding to the permanent magnets by selectively energizing the machine. A servicing control system is disclosed for controlling the excitation of a machine stator in a manner that effects precise positioning of the rotor into a selected service position.Type: GrantFiled: September 22, 2011Date of Patent: March 8, 2016Assignee: Northem Power Systems, Inc.Inventor: Eric L. Benedict
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Patent number: 9281732Abstract: A squirrel-cage rotor includes a rotor core having in its circumferential direction a plurality of slots extending in an axial direction, a plurality of conductor bars stored in each slot of the rotor core and whose ends are projected from an axial direction end surface of the rotor core, and a pair of end rings arranged at the ends of the rotor core and each having a plurality of fitting portions into which the both ends of the conductor bars projecting from the axial direction end surface of the rotor core are fitted. In the conductor bar, among the cross-sectional shape in a plane perpendicular to the axial direction, the shape on the rotor central axis side is a circular arc shape. In the plane perpendicular to the axial direction, a gap is provided on the rotor central axis side of the fitting portion fitted with the conductor bar.Type: GrantFiled: February 20, 2012Date of Patent: March 8, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventor: Manabu Oshida
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Patent number: 9281733Abstract: The instant invention teaches a monostable shutter with magnetic blade return using a bistable actuator with blade motion constrained to provide drive force in a single direction and permits the use of compact bistable coil for continuous use by a circuit that applies a high voltage at the beginning of drive that decays to a lower voltage to prevent coil burn out.Type: GrantFiled: May 4, 2012Date of Patent: March 8, 2016Assignee: Melles GriotInventor: Stanley W. Stephenson
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Patent number: 9281734Abstract: Provided herein is a linear motor in which a back yoke can readily be mounted onto a plurality of linear motor units. The back yoke is constituted from a back yoke assembly including a surrounding portion that entirely surrounds six linear motor units. The back yoke works to form part of respective magnetic circuits of the six linear motor units. The back yoke assembly includes first and second divided assemblies and five partition wall portions. The first and second divided assemblies are each formed by press working a magnetic plate made of silicon steel.Type: GrantFiled: June 25, 2012Date of Patent: March 8, 2016Assignee: SANYO DENKI CO., LTD.Inventors: Yuqi Tang, Satoshi Sugita, Shigenori Miyairi
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Patent number: 9281735Abstract: Advantageous motors, such as flux-switching linear synchronous motors (FSLSMs) are provided. In an FSLSM, all magnets can be magnetized in the same direction. In addition, an FSLSM can be yokeless and can have two stators displaced from one another by half a pole pitch. FSLSMs of the subject invention are cost-effective and provide high thrust, and can operate well even under fault conditions.Type: GrantFiled: January 4, 2013Date of Patent: March 8, 2016Assignee: Rensselaer Polytechnic InstituteInventors: Arun Gandhi, Leila Parsa
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Patent number: 9281736Abstract: A virtual ellipse electric motor and methods are presented. A fulcrum bears a nutating dynamic load, and a wobble plate is rotationally coupled to the fulcrum and nutates around the fulcrum. The wobble plate includes an inner pericyclic gear and an outer pericyclic gear, and a stationary gear meshes with the outer pericyclic gear and provides leverage to the wobble plate. The rotational output plate meshes with the inner pericyclic gear and rotates in response to rotation of the wobble plate. The stator includes an electromagnet and electromagnetically attracts a first side of the wobble plate such that a second side of the wobble plate is leveraged against the stationary gear and the rotational output plate.Type: GrantFiled: March 23, 2013Date of Patent: March 8, 2016Assignee: The Boeing CompanyInventors: Robert J. Atmur, William P. Sargent
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Patent number: 9281737Abstract: A voltage converter such as a DC-DC buck regulator includes a driver circuit that enables charge stored on the parasitic capacitance of a transistor switch to be transferred to a load capacitor. Hence, stored charge can be harvested for use by a load, thereby increasing efficiency of the regulator.Type: GrantFiled: February 3, 2014Date of Patent: March 8, 2016Assignee: FREESCALE SEMICONDUCTOR, INC.Inventor: Nishant Singh Thakur
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Patent number: 9281738Abstract: A power conversion circuit comprises an AC source, a power conversion unit, a filter inductor unit and a common mode noise suppression circuit. The power conversion unit has DC terminals and AC terminals. The filter inductor unit has first and second terminals, being respectively connected to the AC source and the AC terminals of the power conversion unit. The common mode noise suppression circuit has a capacitive impedance network with first and second terminals, and an impedance balancing network with first and second terminals. The second terminals of the capacitive impedance network are connected to the first terminals of the impedance balancing network, the first terminals of the capacitive impedance network are connected to the first terminals of the filter inductor unit, and the second terminals of the impedance balancing network are connected to the DC terminals of the power conversion unit.Type: GrantFiled: March 15, 2013Date of Patent: March 8, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Jinping Zhou, Min Zhou, Yicong Xie
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Patent number: 9281739Abstract: An electrical assembly includes a substrate, a bridge magnetic device disposed on an outer surface of the substrate, and at least one electrical component. The bridge magnetic device includes (1) a magnetic core disposed over and offset from a first portion of the outer surface of the substrate, (2) N windings wound around at least a portion of the magnetic core and electrically coupled to conductors of the substrate, where N is an integer greater than zero, and (3) a ground return conductor disposed on an outer surface of the magnetic core facing the first portion of the outer surface of the substrate. The at least one electrical component is disposed on the first portion of the outer surface of the substrate.Type: GrantFiled: August 29, 2012Date of Patent: March 8, 2016Assignee: Volterra Semiconductor LLCInventor: Alexandr Ikriannikov
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Patent number: 9281740Abstract: When a snubber capacitor is charged to a level greater than or equal to a predetermined voltage, a protection circuit renders a clamp diode conductive to complete charging of the snubber capacitor.Type: GrantFiled: March 2, 2012Date of Patent: March 8, 2016Assignees: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, OSAKA UNIVERSITYInventors: Yasuhiko Hosokawa, Toshifumi Ise, Shinsuke Kadoi
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Patent number: 9281741Abstract: Among other things, techniques and systems are provided to pre-charge a node of a primary circuit, such as a voltage regulator or bandgap voltage reference, via a start-up circuit. The node is charged to a specified voltage during a pre-charge operation that occurs while the primary-circuit is powered-off. The pre-charge operation comprises discharging a voltage from the node during a first portion of the pre-charge operation and re-charging the node to the specified voltage during a second portion of the pre-charge operation. In some embodiments, the specified voltage is substantially equivalent to a switching voltage of a drive transistor of the primary circuit.Type: GrantFiled: March 12, 2013Date of Patent: March 8, 2016Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventor: Chi-Hsiang Weng
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Patent number: 9281742Abstract: In DC/DC converter circuit, the peak value of the reactor current is found based on output voltage and an input voltage, thereby, the operation with the predetermined electric current mode is thereby enabled. The AC/DC converter circuit is run with a predetermined current mode, the power factor improvement is accomplished. The first control part 211 inputs a detected value of output voltage Eo, and a turn-off timing predicted value of switch Tr of the DC/DC converter 1 is calculated. The first control part 211 sends the calculation result to the switch drive signal generate part 213. The second control part 212 inputs the detected value of the output voltage and the input voltage, and it receives the turn-off timing predicted value from the first control part 211.Type: GrantFiled: September 18, 2012Date of Patent: March 8, 2016Assignees: NAGASAKI UNIVERSITY, PANASONIC CORPORATIONInventors: Fujio Kurokawa, Masahito Ohnishi
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Patent number: 9281743Abstract: A regulated charge pump power supply is implemented with a QP regulation loop providing QP clocking to control pumping operation based on sensing output voltage using residual charge on a flying capacitor Cfly. Cfly is used not only in normal charge pumping operation as an active charge shuttle element, but also to determine/measure output voltage VOUT. Voltage sensing using measured residual charge on Cfly is accomplished by introducing a sample phase into the normal charge pumping operation—after the pump phase and before the charge phase. In the sample phase, VOUT is determined (sampled) based on the residual charge on Cfly corresponding to (Vsense=VOUT?VIN). During the sample phase, the Cfly bottom plate is connected to ground, and the Cfly top plate is sampled (such as with a sense capacitor), with the sample phase completed prior to initiating a charge phase (by connecting the Cfly top plate to VIN).Type: GrantFiled: December 31, 2014Date of Patent: March 8, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Hakan Oner, Richard D. Nicholson
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Patent number: 9281744Abstract: In accordance with an embodiment, a method of operating a charge pump includes providing a first programmable voltage to a plurality of clock generators having outputs coupled to first nodes of corresponding groups of charge pump capacitors, and selecting a second node of one capacitor from one of the corresponding groups of charge pump capacitors. The clock generators produce a plurality of clock signals having amplitudes proportional to the first programmable voltage.Type: GrantFiled: April 30, 2012Date of Patent: March 8, 2016Assignee: Infineon Technologies AGInventor: Michael Kropfitsch
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Patent number: 9281745Abstract: A fully digital synthesizable digital controller (152, 152a) controls a switch-mode DC-DC converter (150, 230, 240, 250, 260) having switching elements (154) and an LC circuit (156, 157) for producing an output voltage (160) that is maintained at a desired level regardless of load changes that can occur on the output. The digital controller (152, 152a) comprises an input stage (164), proportional-integral-derivative (PID) compensator (170), and a digital sigma-delta modulator (172). The input stage (164) produces a difference signal between a reference voltage Vref and a feedback voltage Vfbk, and comprises (i) first and second delta-sigma-delta modulators (178, 180) and a subtractor (182), (ii) a delta-sigma-delta modulator (180) and a subtractor (182); or (iii) a comparator (218). The PID compensator (170) processes the difference signal to compensate for an undesired phase shift and to stabilize the feedback loop.Type: GrantFiled: October 30, 2013Date of Patent: March 8, 2016Assignee: STELLAMAR LLCInventors: Luciano Zoso, Allan P. Chin
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Patent number: 9281746Abstract: According to an embodiment, a diagnostic circuit is configured to be coupled to an output terminal of a switching circuit and to a sense terminal of a sense circuit coupled in parallel with the switching circuit. The diagnostic circuit includes a configurable feedback circuit configured to be coupled to the output terminal and the sense terminal. The configurable feedback circuit is configured to receive a select signal, switch a configuration of the configurable feedback circuit between a first mode and a second mode based on the select signal, sink a current from the sense circuit in the first mode, source a current to the sense circuit in the second mode, and balance a voltage difference between the output terminal and the sense terminal in the first mode and in the second mode.Type: GrantFiled: October 21, 2014Date of Patent: March 8, 2016Assignee: Infineon Technologies AGInventors: Mihai-Nicolae Apostolescu, Ansgar Pottbaecker
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Patent number: 9281747Abstract: Disclosed are devices, apparatus, circuitry, components, mechanisms, modules, systems, and processes for controlling a voltage regulator in response to information from a load. In some implementations, transient minimizer circuitry is coupled to receive a notification signal indicating a change or an anticipated change in an electrical characteristic of the load. The transient minimizer circuitry is configured to generate a state command signal responsive to the notification signal. The state command signal indicates a state of the voltage regulator. The switching control circuitry is coupled to receive the state command signal from the transient minimizer circuitry. The switching control circuitry is configured to operate switch circuitry to control the state of the voltage regulator in accordance with the state command signal.Type: GrantFiled: June 26, 2013Date of Patent: March 8, 2016Assignee: Volterra Semiconductor CorporationInventors: Bradley J. Suppanz, Ognjen Djekic