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    Motor-drive with universal jumper configuration
    1.
    发明授权
    Motor-drive with universal jumper configuration 有权

    公开(公告)号：US11923793B2

    公开(公告)日：2024-03-05

    申请号：US17538610

    申请日：2021-11-30

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Xuechao Wang ,  Bora Novakovic ,  Rangarajan M. Tallam

    IPC: H02P27/06 ,  H02M1/44 ,  H02M5/458 ,  H02P29/024

    CPC classification number: H02P27/06 ,  H02M1/44 ,  H02M5/4585 ,  H02P29/0241

    Abstract: A motor-drive system may include a rectifier, a metal-oxide varistor (MOV) assembly, and an inverter. The rectifier may generate a direct current (DC) voltage based on a first voltage received from at least one supply voltage line coupled to a voltage source. The MOV assembly may include at least two metal-oxide varistors (MOVs) respectively coupled to the at least one supply voltage lines. The MOV assembly may couple between the voltage source and the rectifier. The motor-drive system may also include a permanently-installed jumper to couple at least one MOV of the at least two MOVs of the MOV assembly to a system ground. The inverter of the motor-drive system may convert the DC voltage to an alternating current (AC) voltage, which may be provided to a load of the motor-drive system.

    Motor-drive with universal jumper configuration
    2.
    发明授权
    Motor-drive with universal jumper configuration 有权

    公开(公告)号：US11218105B2

    公开(公告)日：2022-01-04

    申请号：US16258371

    申请日：2019-01-25

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Xuechao Wang ,  Bora Novakovic ,  Rangarajan M. Tallam

    IPC: H02P27/06 ,  H02P29/024 ,  H02M5/458 ,  H02M1/44

    Abstract: A motor-drive system may include a rectifier, a metal-oxide varistor (MOV) assembly, and an inverter. The rectifier may generate a direct current (DC) voltage based on a first voltage received from at least one supply voltage line coupled to a voltage source. The MOV assembly may include at least two metal-oxide varistors (MOVs) respectively coupled to the at least one supply voltage lines. The MOV assembly may couple between the voltage source and the rectifier. The motor-drive system may also include a permanently-installed jumper to couple at least one MOV of the at least two MOVs of the MOV assembly to a system ground. The inverter of the motor-drive system may convert the DC voltage to an alternating current (AC) voltage, which may be provided to a load of the motor-drive system.

    DC PRE-CHARGE CIRCUIT
    4.
    发明申请
    DC PRE-CHARGE CIRCUIT 审中-公开
    直流预充电电路

    公开(公告)号：US20150256112A1

    公开(公告)日：2015-09-10

    申请号：US14721814

    申请日：2015-05-26

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： Bruce W. Weiss ,  Doyle F. Busse ,  Jeremy J. Keegan ,  Lixiang Wei ,  Michael W. Loth ,  Rangarajan M. Tallam ,  Yogesh Patel

    IPC: H02P6/20 ,  H02P6/00 ,  H02P6/04 ,  H02M7/537

    CPC classification number: H02P6/20 ,  H02H7/09 ,  H02M7/48 ,  H02M7/537 ,  H02P6/04 ,  H02P6/28

    Abstract: Systems and methods are provided for pre-charging the DC bus on a motor drive. Pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, and so forth. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect to isolate a motor drive from the common DC bus under certain fault conditions.

    Abstract translation: 提供的系统和方法用于在电机驱动器上对DC总线进行预充电。 预充电技术涉及预充电电路，包括手动开关，自动开关和预充电控制电路，以响应于初始化的预充电操作，输入的预充电和预充电旁路模式来切换自动开关 电压骤降​​等。 在一些实施例中，预充电操作可以通过关闭手动开关来初始化。 在一些实施例中，预充电操作也可以由DC总线上的检测到的电压暂降来初始化。 预充电电路还可以被配置为在某些故障条件下将电动机驱动器与公共DC总线隔离。

    MOTOR-DRIVE WITH UNIVERSAL JUMPER CONFIGURATION
    5.
    发明申请
    MOTOR-DRIVE WITH UNIVERSAL JUMPER CONFIGURATION 有权

    公开(公告)号：US20220085745A1

    公开(公告)日：2022-03-17

    申请号：US17538610

    申请日：2021-11-30

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Xuechao Wang ,  Bora Novakovic ,  Rangarajan M. Tallam

    IPC: H02P27/06 ,  H02P29/024 ,  H02M5/458 ,  H02M1/44

    Abstract: A motor-drive system may include a rectifier, a metal-oxide varistor (MOV) assembly, and an inverter. The rectifier may generate a direct current (DC) voltage based on a first voltage received from at least one supply voltage line coupled to a voltage source. The MOV assembly may include at least two metal-oxide varistors (MOVs) respectively coupled to the at least one supply voltage lines. The MOV assembly may couple between the voltage source and the rectifier. The motor-drive system may also include a permanently-installed jumper to couple at least one MOV of the at least two MOVs of the MOV assembly to a system ground. The inverter of the motor-drive system may convert the DC voltage to an alternating current (AC) voltage, which may be provided to a load of the motor-drive system.

    Low quiescent current startup circuit
    6.
    发明授权
    Low quiescent current startup circuit 有权

    公开(公告)号：US11716015B2

    公开(公告)日：2023-08-01

    申请号：US17174072

    申请日：2021-02-11

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Bora Novakovic ,  Jatinkumar K. Patel ,  Rangarajan M. Tallam ,  Robert W. Reese

    IPC: H02M1/36 ,  H02M3/06 ,  H02M3/158 ,  H02M1/00

    CPC classification number: H02M1/36 ,  H02M3/06 ,  H02M3/158 ,  H02M1/0032

    Abstract: A switch mode power supply includes a bootstrap circuit, control circuits, and an auxiliary winding coupled to the bootstrap circuit and configured to supply power to the control circuits after startup of the power supply. The bootstrap circuit is configured to supply power to the control circuits during startup and includes an isolation circuit to limit current flow between the starting capacitor and the control circuits while the starting capacitor is charged to a starting voltage by the high voltage input. During the initial charge of the starting capacitor, the control circuits do not have power to provide the initial functionality of the power supply. Once the starting capacitor is charged to the starting voltage, the isolation circuit is activated to allow current flow that powers the control circuits during the remainder of the startup until the auxiliary winding is able to power the control circuits.

    LOW QUIESCENT CURRENT STARTUP CIRCUIT
    7.
    发明申请
    LOW QUIESCENT CURRENT STARTUP CIRCUIT 有权

    公开(公告)号：US20220255421A1

    公开(公告)日：2022-08-11

    申请号：US17174072

    申请日：2021-02-11

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Bora Novakovic ,  Jatinkumar K. Patel ,  Rangarajan M. Tallam ,  Robert W. Reese

    IPC: H02M1/36 ,  H02M3/06 ,  H02M3/158

    Abstract: A switch mode power supply includes a bootstrap circuit, control circuits, and an auxiliary winding coupled to the bootstrap circuit and configured to supply power to the control circuits after startup of the power supply. The bootstrap circuit is configured to supply power to the control circuits during startup and includes an isolation circuit to limit current flow between the starting capacitor and the control circuits while the starting capacitor is charged to a starting voltage by the high voltage input. During the initial charge of the starting capacitor, the control circuits do not have power to provide the initial functionality of the power supply. Once the starting capacitor is charged to the starting voltage, the isolation circuit is activated to allow current flow that powers the control circuits during the remainder of the startup until the auxiliary winding is able to power the control circuits.

    MOTOR-DRIVE WITH UNIVERSAL JUMPER CONFIGURATION
    9.
    发明申请
    MOTOR-DRIVE WITH UNIVERSAL JUMPER CONFIGURATION 审中-公开

    公开(公告)号：US20200244204A1

    公开(公告)日：2020-07-30

    申请号：US16258371

    申请日：2019-01-25

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Xuechao Wang ,  Bora Novakovic ,  Rangarajan M. Tallam

    IPC: H02P27/06 ,  H02P29/024 ,  H01C7/12 ,  H02M1/44 ,  H02M5/458

    Abstract: A motor-drive system may include a rectifier, a metal-oxide varistor (MOV) assembly, and an inverter. The rectifier may generate a direct current (DC) voltage based on a first voltage received from at least one supply voltage line coupled to a voltage source. The MOV assembly may include at least two metal-oxide varistors (MOVs) respectively coupled to the at least one supply voltage lines. The MOV assembly may couple between the voltage source and the rectifier. The motor-drive system may also include a permanently-installed jumper to couple at least one MOV of the at least two MOVs of the MOV assembly to a system ground. The inverter of the motor-drive system may convert the DC voltage to an alternating current (AC) voltage, which may be provided to a load of the motor-drive system.

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