公开(公告)号：US20180229762A1

公开(公告)日：2018-08-16

申请号：US15896073

申请日：2018-02-14

Applicant: MANDO CORPORATION

Inventor： Dae Geun CHOI

IPC: B62D5/04

CPC classification number: B62D5/046 ,  B62D5/0403 ,  H02K21/16 ,  H02P2201/09

Abstract: An apparatus for controlling a motor for an electric power steering system according to an embodiment of the present invention, the motor including a stator on which a plurality of coils are wound and a rotor, which is placed inside the stator and into which a plurality of magnets are inserted, the plurality of coils being divided into two coil groups, the apparatus includes: a first controller configured to control supply of power applied to a first coil group that is one of the two coil groups; a second controller configured to control supply of power applied to a second coil group that is the other one of the two coil groups; and a boost converter configured to compensate for a difference between power output from the first controller and power output from the second controller.

公开(公告)号：US09954474B2

公开(公告)日：2018-04-24

申请号：US15209790

申请日：2016-07-14

Applicant: ARM Limited

Inventor： David Pietromonaco

IPC: H02M3/155 ,  H02P25/092 ,  H02P6/08 ,  H02P6/14 ,  H02M3/158 ,  H02K11/22 ,  B60L11/00 ,  H02M1/00

CPC classification number: H02P25/092 ,  B60L11/005 ,  B60L2220/54 ,  H02K11/22 ,  H02M3/155 ,  H02M3/158 ,  H02M2001/0064 ,  H02M2003/1552 ,  H02P6/08 ,  H02P6/14 ,  H02P2201/09 ,  Y02T10/641 ,  Y02T10/642

Abstract: A driver circuit for driving an electrical motor coil is provided which comprises combined switched inductance boost voltage converter circuitry and switched inductance buck voltage converter circuitry. An input node of the driver circuit is provided to be coupled with the electrical motor coil, which provides the inductive element of both the boost and buck circuitry. Further the boost and buck circuitry share a storage capacitor, which provides the capacitive element of each circuitry, and a voltage developed across the storage capacitor by the boost circuitry forms an input of the switched inductance buck voltage converter circuitry. Bidirectional driving of the electrical motor coil is thus provided from a driver circuit which only need be supplied with a single unidirectional supply and the current drawn from that supply is significantly reduced because of the manner in which the boost and buck circuitry operate synergistically to recycle electrical power which is moved back and forth between the electrical motor coil and the storage capacitor. A corresponding driver board, electrical motor driver apparatus, method of operating a driver circuit and apparatus are also provided.

公开(公告)号：US20180090277A1

公开(公告)日：2018-03-29

申请号：US15560093

申请日：2016-03-18

Applicant: KYOCERA Corporation

Inventor： Naoki KIKUCHI

IPC: H01G4/33 ,  H01G4/32 ,  H01G4/228 ,  H01G4/06 ,  H01G4/38 ,  H02M7/5387 ,  H02P27/06 ,  B60L11/18

CPC classification number: H01G4/33 ,  B60L50/50 ,  B60L2210/40 ,  B60L2210/42 ,  H01G4/015 ,  H01G4/06 ,  H01G4/18 ,  H01G4/228 ,  H01G4/32 ,  H01G4/38 ,  H02M7/5387 ,  H02P27/06 ,  H02P2201/09 ,  Y02T10/7022

Abstract: A film capacitor includes a wound body in which a dielectric film and an electrode film are wound; and a pair of external electrodes provided respectively on a pair of end faces positioned in an axial direction of the wound body. The dielectric film includes an electrode-free portion provided on one end side in a width direction, continuously in a longitudinal direction of the dielectric film. The electrode film has a first projection portion on a surface on the other end side in the width direction, and the first projection portion has a string shape extending in the width direction.

公开(公告)号：US20170359013A1

公开(公告)日：2017-12-14

申请号：US15182474

申请日：2016-06-14

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02P25/086 ,  H02P27/08

CPC classification number: H02P25/086 ,  H02K19/103 ,  H02P25/08 ,  H02P27/08 ,  H02P2201/09 ,  H02P2201/11

Abstract: Apparatus and methods are provided for operating an electric motor, comprising selectively energising the coils of a stator having a plurality of stator teeth, each stator tooth having a said coil mounted thereon. The stator coils of a subset of the stator teeth are energised during a given time period to attract a corresponding rotor tooth into alignment with each of the stator teeth in the subset over the given time period. The stator coil of at least one stator tooth in the subset is energised during a portion of the given time period before the at least one stator tooth overlaps the corresponding rotor tooth.

公开(公告)号：US09825560B2

公开(公告)日：2017-11-21

申请号：US14489078

申请日：2014-09-17

Applicant: Regal Beloit America, Inc.

Inventor： Ming Li ,  Peizhong Yi ,  Roger Carlos Becerra ,  Ludovic Andre Chretien

IPC: H02M7/46 ,  H02M3/28 ,  H02M7/217 ,  H02P6/00 ,  H02M1/42 ,  H01F17/04 ,  H02M1/12 ,  H02M3/158 ,  H01F17/00

CPC classification number: H02P6/28 ,  H01F17/04 ,  H01F2017/0093 ,  H02M1/126 ,  H02M1/4225 ,  H02M1/4266 ,  H02M3/1584 ,  H02M2001/123 ,  H02P6/002 ,  H02P2201/09 ,  H02P2201/15 ,  Y02B70/126

Abstract: An interleaved bridgeless power factor correction (PFC) converter-based motor drive system is provided. The system includes a first inductor coupled to a second inductor. The coupled first and second inductors are coupled to a first input configured to be coupled to a first line of an alternating current (AC) power supply. The system also includes a third inductor coupled to a fourth inductor. The coupled third and fourth inductors are coupled to a second input configured to be coupled to a second line of the AC power supply. The system further includes a digital active power factor correction (PFC) controller configured to cause current in at least one of the coupled first and second inductors and the coupled third and fourth inductors to be interleaved.

公开(公告)号：US09793846B2

公开(公告)日：2017-10-17

申请号：US15124834

申请日：2014-06-30

Applicant: Mitsubishi Electric Corporation

Inventor： Kenichi Fujie ,  Katsuya Tsujimoto ,  Takamasa Asai

IPC: H02P6/06 ,  H02P27/00 ,  H02J1/00 ,  H02M1/36 ,  H02M3/07 ,  H02P6/20 ,  H02M1/32 ,  H02M7/5387 ,  H02P27/06 ,  H02M1/00

CPC classification number: H02P27/00 ,  H02J1/00 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M7/5387 ,  H02M2001/0006 ,  H02P6/20 ,  H02P27/06 ,  H02P2201/09

Abstract: A power conversion device has an internal power supply switch and a bias power supply switch connected in parallel with the internal power supply switch, wherein, when an output voltage of an internal power supply circuit is greater than a predetermined value when a power supply is started up, the bias power supply switch opens a current path, and when the power supply is stopped, the step-up power supply circuit is stopped based on a stop signal output by the internal power supply circuit and the internal power supply switch closes the current path, and when the output voltage of the internal power supply circuit becomes lower than a predetermined value, the bias power supply switch closes the current path.

公开(公告)号：US20170279372A1

公开(公告)日：2017-09-28

申请号：US15510718

申请日：2015-09-24

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kenichi SAKAKIBARA

IPC: H02M7/48 ,  H02J3/36 ,  H02M5/458 ,  F03G7/08 ,  H02M1/42

CPC classification number: H02M7/48 ,  F03G7/08 ,  H02J3/36 ,  H02M1/42 ,  H02M1/4225 ,  H02M5/458 ,  H02M7/12 ,  H02P2201/09

Abstract: A discharge duty that is a duty at which a switch is conductive takes a value obtained by dividing a product of a crest value of a single-phase AC voltage and a square of a cosine value of a phase of the single-phase AC voltage by a both-end voltage across a capacitor. A sum of a product of a rectifying duty that is a duty at which a converter is conductive and a rectified voltage output from the converter and a product of the both-end voltage and the discharge duty varies in a period that is a half of the period of the single-phase AC voltage.

公开(公告)号：US09635745B1

公开(公告)日：2017-04-25

申请号：US15157392

申请日：2016-05-17

Applicant: Zhi Bin Zhou

Inventor： Zhi Bin Zhou

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B37/0272 ,  H02P31/00 ,  H02P2201/09 ,  H02P2205/00

Abstract: Disclosed is a wireless remote control circuit, comprising a control module, a drive circuit connected with control module, a signal receiving circuit and an operation circuit. When the signal receiving circuit receives an operation signal, a feedback electrical signal to the control module, and the drive circuit supplies power to the control module, signal receiving circuit and operation circuit. Meanwhile, the control module sends control signals to the operation circuit according to the electrical signal. The operation circuit comprises a buck-boost circuit that controls the motor running and a switching circuit that controls switching of the light switch.

公开(公告)号：US09614456B2

公开(公告)日：2017-04-04

申请号：US14646072

申请日：2013-01-07

Applicant: Kenta Yuasa

Inventor： Kenta Yuasa

IPC: H02M1/36 ,  H02M1/12 ,  H02M7/12 ,  H02M5/458 ,  H02M1/00 ,  H02M3/156

CPC classification number: H02M5/458 ,  H02M1/36 ,  H02M3/156 ,  H02M7/125 ,  H02M2001/0038 ,  H02M2001/123 ,  H02P2201/09

Abstract: A power conversion apparatus includes: a first smoothing capacitor and a second smoothing capacitor connected in parallel to each other, an inrush current preventing circuit connected in series to the first smoothing capacitor, the inrush current preventing circuit including an inrush preventing resistor for suppressing an inrush current and a first relay connected in parallel to the inrush preventing resistor; a second relay connected in series to the second smoothing capacitor; an inverter circuit for converting the output smoothed by the first smoothing capacitor and the second smoothing capacitor into an AC voltage and outputting the AC voltage to a load; and relay controlling means for controlling a switching operation of the first relay and the second relay.

公开(公告)号：US09579776B2

公开(公告)日：2017-02-28

申请号：US14202107

申请日：2014-03-10

Applicant: Panasonic Corporation

Inventor： Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroyuki Kaizo ,  Fumiaki Sekino ,  Kenichirou Inagaki

IPC: B25B23/147 ,  B25B21/02 ,  B25B23/14 ,  H02P7/295

CPC classification number: B25B21/02 ,  B25B21/026 ,  B25B23/1405 ,  B25B23/147 ,  B25B23/1475 ,  H02P7/295 ,  H02P2201/09

Abstract: An electric power tool includes a voltage step-up condition setting operation unit that serves as a human machine interface and a voltage converter capable of performing a voltage step-up operation to raise a voltage supplied from a power supply and supply a raised voltage to a motor. The voltage converter is further capable of changing a voltage step-up level in the voltage step-up operation in accordance with the operation of the voltage step-up condition setting operation unit. A driving state detection unit generates a driving state signal corresponding to a driving state of the electric power tool. A control unit controls a stop timing of the motor in accordance with the driving state signal.

Abstract translation: 电动工具包括作为人机接口的电压升压状态设定动作部以及能够进行升压动作的电压转换器，以提高从电源供给的电压，并将升高的电压提供给 发动机。 电压转换器还能够根据升压状态设定运算部的动作，改变升压动作中的升压电平。 驱动状态检测单元产生与电动工具的驱动状态对应的驱动状态信号。 控制单元根据驱动状态信号控制电机的停止定时。