公开(公告)号：US11753760B2

公开(公告)日：2023-09-12

申请号：US18087111

申请日：2022-12-22

Applicant: WHIRLPOOL CORPORATION

Inventor： Daniel Quinn

IPC: F04D15/00 ,  H02K7/14 ,  D06F34/08 ,  H02M3/07 ,  H02M1/32 ,  H02P27/04 ,  H02M1/10 ,  D06F37/30 ,  D06F34/10

CPC classification number: D06F34/08 ,  H02M1/10 ,  H02M1/32 ,  H02M3/073 ,  H02P27/04 ,  D06F34/10 ,  D06F37/304 ,  H02P2201/09

Abstract: A voltage doubling circuit that increases input voltage to higher output voltage connected to a variable frequency drive. The voltage doubling circuit can include a power input that receives the input voltage from a power source and a first capacitor bank and a second capacitor bank connected with the power input. A current-limiting surge suppressor is positioned between the power input and the first capacitor bank and the second capacitor bank. The current-limiting surge suppressor includes a first current-limiting path and a second bypass path. A drain, when operable, dissipates the charge of the first capacitor bank and the second capacitor bank. A variable frequency drive (VFD) is operable in response to the higher voltage output from the first capacitor bank and the second capacitor bank.

公开(公告)号：US11750139B2

公开(公告)日：2023-09-05

申请号：US17627916

申请日：2020-06-25

Applicant: SEW-EURODRIVE GMBH & CO. KG

Inventor： Wolfgang Halder ,  Thomas Kühefuß ,  Georg Pfeiffer

IPC: H02P29/00 ,  H02P29/032 ,  H02P29/68 ,  H02P3/22 ,  H02P27/08

CPC classification number: H02P29/0022 ,  H02P3/22 ,  H02P27/085 ,  H02P29/032 ,  H02P29/68 ,  H02P2201/09

Abstract: In a method and system for operating a system having an energy storage device and a resistor, and in order to discharge the energy storage device, an electric power that is constant over time is continuously supplied to the resistor, e.g., during a time period, e.g., until the resistor has practically been fully discharged, the time period, e.g., being greater than the time constant of the temperature rise of the resistor induced by a continuous electric power that is constant over time and supplied to the resistor.

公开(公告)号：US20230146546A1

公开(公告)日：2023-05-11

申请号：US17453802

申请日：2021-11-05

Applicant: Emerson Climate Technologies, Inc.

Inventor： Joseph G. Marcinkiewicz ,  Mark Qin ,  Nikhil R. Lakhkar ,  Robert Dziuba

IPC: F25B49/02 ,  H02P29/68 ,  F25B13/00 ,  F25B31/02

CPC classification number: F25B49/025 ,  F25B13/00 ,  F25B31/02 ,  H02P29/68 ,  H02P2201/09 ,  H02P2201/15

Abstract: In other features, a refrigeration system is provided and includes a compressor motor, an inverter, a converter and a control module. The inverter is configured to convert a direct current (DC) bus voltage to an alternating current (AC) voltage and supply the AC voltage to the compressor motor. The converter is configured to convert a DC input voltage to the DC bus voltage. The control module is configured to obtain a parameter and in response to the parameter exceeding a predetermined threshold, reduce the DC bus voltage and at least one of (i) reduce a switching frequency, (ii) increase an amount of negative d-axis current of the compressor motor, or (iii) reduce a speed of the compressor motor.

公开(公告)号：US20190199250A1

公开(公告)日：2019-06-27

申请号：US16232089

申请日：2018-12-26

Applicant: NIDEC TOSOK CORPORATION

Inventor： Tadayuki HATSUDA ,  Yoshihisa OKUHATA

IPC: H02P6/10 ,  H02M7/5387 ,  H02M3/158 ,  H02K11/33 ,  H02K11/00

CPC classification number: H02P6/10 ,  H02K11/0094 ,  H02K11/33 ,  H02M3/158 ,  H02M7/53871 ,  H02P6/16 ,  H02P2201/09

Abstract: A motor control device includes: a voltage boosting circuit that boosts a power source voltage supplied from an outside; a condenser that smooths a voltage output by the voltage boosting circuit; an inverter circuit that generates a drive voltage of a motor by switching a voltage output by the voltage boosting circuit and smoothed by the condenser; and a control part that causes the voltage boosting circuit to bypass and causes the power source voltage to be supplied to the inverter circuit, and a distance between the voltage boosting circuit and the inverter circuit is a distance with which a parasitic inductance is equal to or less than a predetermined value.

公开(公告)号：US20180334046A1

公开(公告)日：2018-11-22

申请号：US15597810

申请日：2017-05-17

Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.

Inventor： Jae Seung Lee ,  Jongwon Shin

IPC: B60L11/18 ,  H02M3/04 ,  H02M7/04 ,  H02M7/44 ,  H02J7/00 ,  B60L11/02 ,  H02P27/06

CPC classification number: H02P27/06 ,  B60L15/007 ,  B60L50/10 ,  B60L53/14 ,  B60L53/22 ,  B60L53/24 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  H02J7/022 ,  H02M1/12 ,  H02M1/4225 ,  H02M1/44 ,  H02M3/04 ,  H02M3/1588 ,  H02M7/04 ,  H02M7/44 ,  H02M7/53875 ,  H02M2001/007 ,  H02P2201/09

Abstract: A power conversion system for a vehicle includes a power conditioning device, a boost converter, an inverter coupled to the boost converter, a transformer, a second rectifier coupled to the transformer, an electric motor, a battery coupled to the second rectifier, a first switch configured to selectively connect the boost converter with the power conditioning device or the battery, and a second switch configured to selectively connect the inverter with the transformer or the electric motor. The first switch connects the power conditioning device with the boost converter and the second switch connects the inverter with the transformer in response to the vehicle being in a grid-connected mode, and the first switch connects the battery with the boost converter and the second switch connects the inverter with the electric motor in response to the vehicle being in a stand-alone mode.

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.