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.

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.

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.

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.