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1. 发明授权

US11541526B2 Hand-held power tool having an electronically commutated motor 有权
公开(公告)号：US11541526B2
公开(公告)日：2023-01-03
申请号：US16919830
申请日：2020-07-02
申请人： Robert Bosch GmbH
发明人： Gyoergy Mucsi , Yavuz Guerlek
IPC分类号： B25F5/00 , H02K7/14 , H02K11/33 , H02P6/14 , B24B23/02
摘要： A hand-held power tool includes an electronically commutated motor including a motor winding. Motor electronics of the hand-held power tool are configured to electronically commutate the motor winding using a selected one of a plurality of electrical precontrol angles, thereby adapting the motor winding to different mechanical load conditions of the electronically commutated motor.

2. 发明申请

US20220393621A1 OUTDOOR POWER EQUIPMENT WITH DISTRIBUTED MOTOR CONTROLLERS 有权
公开(公告)号：US20220393621A1
公开(公告)日：2022-12-08
申请号：US17888813
申请日：2022-08-16
申请人： Birggs & Stratton, LLC
发明人： David Schulenberg , Jacob Schmalz
IPC分类号： H02P5/52 , G05B19/418 , H02P6/14 , H02P4/00
摘要： Outdoor power equipment includes a drive motor configured to operate a drive wheel, a drive motor controller configured to control the drive motor, a first chore motor configured to drive a first chore device, and a first chore motor controller communicatively coupled to the drive motor controller. The first chore motor controller is configured to receive an operational state of the drive motor including a drive motor speed from the drive motor controller and operate the first chore motor based on the operational state of the drive motor.

3. 发明授权

US11437936B2 Outdoor power equipment with distributed motor controllers 有权
公开(公告)号：US11437936B2
公开(公告)日：2022-09-06
申请号：US16512303
申请日：2019-07-15
申请人： BRIGGS & STRATTON CORPORATION
发明人： David Schulenberg , Jacob Schmalz
IPC分类号： H02P5/52 , G05B19/418 , H02P6/14 , H02P4/00
摘要： An outdoor power equipment includes multiple motors and a controller module. The motors include a first motor and a second motor. The first motor is structured to operate a first component of the outdoor power equipment and the second motor is structured to operate a second component of the outdoor power equipment. The controller module includes multiple motor controllers structured to communicate via a network communication bus with each other and operate the first motor and the second motor to operate the first component and the second component based on the communication via the network communication bus.

4. 发明授权

US11265004B2 Analog-to-digital converter circuit, corresponding device and method 有权
公开(公告)号：US11265004B2
公开(公告)日：2022-03-01
申请号：US16667419
申请日：2019-10-29
申请人： STMicroelectronics S.r.l.
发明人： Giuseppe D'Angelo
IPC分类号： H03M1/10 , H03M1/06 , H02P6/14
摘要： In an embodiment, a circuit includes first and second analog-to-digital conversion circuit path. The first analog-to-digital conversion circuit path is configured to provide first converted digital data from an analog input signal. The second analog-to-digital conversion circuit path is configured to provide second converted digital data from the analog input signal. A comparison circuit is configured to compare the first converted digital data with the second converter digital data and generate a fault based on the comparison to reveal a mismatch between the first and second converted digital data.

5. 发明授权

US11258391B2 Rotating electrical machine control device 有权
公开(公告)号：US11258391B2
公开(公告)日：2022-02-22
申请号：US16769466
申请日：2019-01-17
申请人： AISIN AW CO., LTD.
发明人： Subrata Saha , Isao Fujiwara
IPC分类号： H02P6/14 , H02P25/22 , H02P27/08
摘要： Two inverters provided at both ends of each open-end winding, respectively, are appropriately controlled. A rotating electrical machine control device (1) that has at least two control schemes among pulse width modulation control, active short-circuit control, and rectangular-wave control, as control schemes for a first inverter (11) and a second inverter (12), and that can control the first inverter (11) and the second inverter (12) by control schemes which are independent of each other considers one of the plurality of control schemes as a first control scheme and one of the plurality of control schemes different than the first control scheme as a second control scheme, and has a control mode in which the first inverter (11) is controlled by the first control scheme and the second inverter (12) is controlled by the second control scheme.

6. 发明授权

US11223310B2 Variable speed generator/motor device 有权
公开(公告)号：US11223310B2
公开(公告)日：2022-01-11
申请号：US15734952
申请日：2019-06-06
申请人： HITACHI MITSUBISHI HYDRO CORPORATION , HITACHI, LTD.
发明人： Akira Bando , Takashi Oyake , Masaya Ichinose
IPC分类号： H02P6/14 , H02P23/14 , H02P9/02 , H02P27/06
摘要： In a variable speed generator/motor device including a variable frequency power converter, a direct current voltage device including a voltage type self-excited converter, an automatic voltage adjuster, and a converter current adjuster that controls unit converters, a first three-phase branch circuit is provided between the direct current voltage device and an alternating current system; a second three-phase branch circuit is provided between the variable frequency power converter and a three-phase alternating current synchronous machine; a first load switch is provided between the first three-phase branch circuit and the second three-phase branch circuit; a measurement current transformer is provided between the three-phase alternating current synchronous machine and the second three-phase branch circuit; when switching from a converter mode in which the variable frequency power converter drives the three-phase alternating current synchronous machine to generate power to a bypass mode, the first load switch is closed to stop a gate command to the unit converters; and when switching from the bypass mode to the converter mode, a current command value of the converter current adjuster is calculated from a current value of the measurement current transformer, the gate command to the unit converters is started, and the first load switch is opened.

7. 发明授权

US11114925B2 Grouped tooth electric motor 有权
公开(公告)号：US11114925B2
公开(公告)日：2021-09-07
申请号：US16852849
申请日：2020-04-20
申请人： Arm Limited
发明人： David Victor Pietromonaco
IPC分类号： H02K19/10 , H02K19/06 , H02P6/14 , H02P25/092 , H02P1/16 , H02P25/08 , H02K11/00 , H02K1/24 , H02K11/33 , H02K1/14 , H02K3/18 , H02K3/02 , H02K3/28
摘要： An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.

8. 发明授权

US10974399B2 Method for determining the time behavior of a cyclic motor process during use of an electrical hair removal device and hair removal device 有权
公开(公告)号：US10974399B2
公开(公告)日：2021-04-13
申请号：US16031054
申请日：2018-07-10
申请人： Braun GmbH
发明人： Christian Neyer , Bernhard Kraus
IPC分类号： H02P6/14 , G01R31/34 , G01R19/00 , A45D26/00 , B26B19/38 , B26B19/28 , B26B19/46 , H02P6/00
摘要： Electrical hair removal device and method for determining the time behavior of a cyclic motor process during use of the electrical hair removal device with a motor-driven hair cutting unit by measuring the motor current. Parallel to measuring the motor current, the induced voltage of the motor is measured and a timing property of the induced voltage is evaluated, wherein the duration of a time pattern in the induced voltage is analyzed as timing property of the induced voltage. A cutting activity of the electrical hair removal device during use is determined based on the evaluated timing property of the induced voltage, and a force applied onto skin during use of the electrical hair removal device is determined based on the measured motor current and, optionally, on the determined cutting activity.

9. 发明授权

US10969252B2 System for determining at least one rotation parameter of a rotating member 有权
公开(公告)号：US10969252B2
公开(公告)日：2021-04-06
申请号：US16332172
申请日：2017-09-12
申请人： NTN-SNR ROULEMENTS
发明人： Christophe Duret , Cécile Flammier
IPC分类号： G01D5/245 , H02P6/14 , G01D5/165 , H01L43/06 , G01D5/12
摘要： The invention relates to a system having a coder with a magnetic track that exhibits an alternation of North and South magnetic poles separated by i Archimedean spiral transitions. The invention also includes a rotation sensor able to detect the periodic magnetic field emitted by the coder using several sensitive elements, the sensitive elements being distributed angularly along the magnetic track while forming between at least two sensitive elements an angle α which is designed so that the signals delivered by the elements are in quadrature.

10. 发明申请

US20210028729A1 BRUSHLESS MOTOR HAVING SIX-STEP COMMUTATION CONTROL 有权
公开(公告)号：US20210028729A1
公开(公告)日：2021-01-28
申请号：US17061665
申请日：2020-10-02
申请人： Black & Decker Inc.
发明人： John D. COX
IPC分类号： H02P6/12 , H02P25/18 , H02P27/08 , H02P25/22 , H02P6/28 , B25F5/02 , H02P4/00 , H02P6/14 , H02J9/06 , H02M3/10 , H02M7/5387 , H02P6/08 , H02P6/182 , H02P27/06
摘要： A power tool is provided including: an electric brushless direct current (BLDC) motor having a rotor and a stator. The stator includes at least six teeth including a first set of teeth on which a first set of stator windings are wound and a second set of teeth on which a second set of stator windings are wound. The first and second sets of stator windings are alternatingly arranged relative to the stator. The first set of stator windings is connected in a wye configuration and the second set of stator windings is connected in delta configuration.

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