公开(公告)号：US10236815B2

公开(公告)日：2019-03-19

申请号：US15368250

申请日：2016-12-02

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02P6/15 ,  H02P23/14 ,  H02K11/21 ,  H02K29/12 ,  H02P25/089 ,  H02K11/225

Abstract: Electric motors may include one or more sensors usable to determine rotor alignment and/or speed. A method and apparatus for rotor alignment and/or speed error detection and/or correction are proposed, such as using signals from one or more sensors. A method and apparatus for controlling stator tooth activation based, at least in part, on corrections and offsets is also disclosed.

公开(公告)号：US20180159455A1

公开(公告)日：2018-06-07

申请号：US15368250

申请日：2016-12-02

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02P23/14 ,  H02P6/15 ,  H02K11/21

CPC classification number: H02P23/14 ,  H02K11/21 ,  H02K11/225 ,  H02K29/12 ,  H02P6/15 ,  H02P6/153 ,  H02P25/089 ,  H02P2203/00

Abstract: Electric motors may include one or more sensors usable to determine rotor alignment and/or speed. A method and apparatus for rotor alignment and/or speed error detection and/or correction are proposed, such as using signals from one or more sensors. A method and apparatus for controlling stator tooth activation based, at least in part, on corrections and offsets is also disclosed.

公开(公告)号：US20180013337A1

公开(公告)日：2018-01-11

申请号：US15204500

申请日：2016-07-07

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02K19/10 ,  H02K1/24 ,  H02K1/14 ,  H02P25/08 ,  H02K3/18

CPC classification number: H02K19/103 ,  H02K1/14 ,  H02K1/24 ,  H02K1/246 ,  H02K3/02 ,  H02K3/18 ,  H02K3/28 ,  H02K11/0094 ,  H02K11/33 ,  H02K19/06 ,  H02P25/08

Abstract: 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.

公开(公告)号：US20170338723A1

公开(公告)日：2017-11-23

申请号：US15159157

申请日：2016-05-19

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02K15/00 ,  H02K1/08 ,  H02K3/52 ,  H02K15/02

CPC classification number: H02K15/0006 ,  H02K1/08 ,  H02K1/148 ,  H02K1/185 ,  H02K3/28 ,  H02K3/521 ,  H02K11/30 ,  H02K15/022 ,  H02K19/06 ,  H02K2203/12 ,  H02K2213/12 ,  H02P25/18 ,  Y02E10/725

Abstract: An electric motor is disclosed having a detachable stator tooth. In some implementations, coil windings of the electric motor may be coupled to one or more drivers independently of other coil windings. A method of repairing and manufacturing an electric motor having a detachable stator tooth is also disclosed.

公开(公告)号：US20170324308A1

公开(公告)日：2017-11-09

申请号：US15145702

申请日：2016-05-03

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02K11/33 ,  H02K11/20 ,  H02K1/14 ,  H02K3/28

CPC classification number: H02K11/33 ,  H02K1/14 ,  H02K3/28 ,  H02K11/20 ,  H02K19/103 ,  H02P25/092 ,  H02P25/16

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.

公开(公告)号：US10516322B2

公开(公告)日：2019-12-24

申请号：US15159157

申请日：2016-05-19

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02K1/08 ,  H02K1/14 ,  H02K1/18 ,  H02K3/28 ,  H02K3/52 ,  H02K11/30 ,  H02K15/00 ,  H02K15/02 ,  H02K19/06 ,  H02P25/18

Abstract: An electric motor is disclosed having a detachable stator tooth. In some implementations, coil windings of the electric motor may be coupled to one or more drivers independently of other coil windings. A method of repairing and manufacturing an electric motor having a detachable stator tooth is also disclosed.

公开(公告)号：US10135377B2

公开(公告)日：2018-11-20

申请号：US15182465

申请日：2016-06-14

Applicant: ARM Ltd

Inventor： David Victor Pietromonaco

IPC: H02P1/24 ,  H02P25/086 ,  H02P27/08 ,  H02M7/5395 ,  H02P25/08 ,  H02P25/092 ,  H02M3/155

Abstract: Apparatus and methods of operating an electric motor are provided, comprising energizing a plurality of stator coils in sequence to rotate a rotor. Each said coil is energized with a repeating pulse sequence comprising at least a first portion and a second portion, the first and second portions repeating alternately to form the repeating pulse sequence. The first portion comprises a first pattern of pulses, each pulse in the first pattern having either a first polarity or second polarity, and at least two consecutive pulses in the first pattern having the same polarity. The second portion comprises a second pattern of pulses, the second pattern of pulses having the same pattern as said first pattern of pulses, but having inverted polarity with respect to said first pattern of pulses.

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：US20170359012A1

公开(公告)日：2017-12-14

申请号：US15182465

申请日：2016-06-14

Applicant: ARM Ltd

Inventor： David Victor Pietromonaco

IPC: H02P25/086 ,  H02P27/08

CPC classification number: H02P25/086 ,  H02M7/5395 ,  H02M2003/1552 ,  H02P25/08 ,  H02P25/092 ,  H02P27/08

Abstract: Apparatus and methods of operating an electric motor are provided, comprising energising a plurality of stator coils in sequence to rotate a rotor. Each said coil is energised with a repeating pulse sequence comprising at least a first portion and a second portion, the first and second portions repeating alternately to form the repeating pulse sequence. The first portion comprises a first pattern of pulses, each pulse in the first pattern having either a first polarity or second polarity, and at least two consecutive pulses in the first pattern having the same polarity. The second portion comprises a second pattern of pulses, the second pattern of pulses having the same pattern as said first pattern of pulses, but having inverted polarity with respect to said first pattern of pulses.

公开(公告)号：US10742153B2

公开(公告)日：2020-08-11

申请号：US15483990

申请日：2017-04-10

Applicant: ARM Ltd.

Inventor： David Victor Pietromonaco

IPC: H02K19/06 ,  H02P25/08 ,  H02K19/10 ,  H02K3/28 ,  H02P21/22 ,  H02K3/18 ,  H02K11/00 ,  H02P25/092

Abstract: An electrical motor comprising multiple inductive coils, and a method for using same, is disclosed. The inductive coils may be configured to conduct current bi-directionally. Terminals of the inductive coils may be coupled to a common node on a power bus coupled to a power supply. Current flowing in a first inductive coil from the power bus may be largely offset by current returned to the power bus from a second inductive coil.