公开(公告)号：US20200343820A1

公开(公告)日：2020-10-29

申请号：US16698392

申请日：2019-11-27

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Sarah Badawi ,  Zhong Y. Cheng ,  Mehdi Narimani ,  Ye Zhang

IPC: H02M5/458

Abstract: For a power supply with a reduced number of semiconductor devices, a transformer receives a three-phase primary voltage and steps the three-phase primary voltage up or down to a secondary voltage with a plurality of secondary winding sets to a plurality of first phase voltages, a plurality of second phase voltages, and a plurality of third phase voltages. A plurality of power cell sets each include a plurality of power cells cascaded connected. Each power cell comprises a rectifier and an inverter. The rectifier includes two first active switches that are serially connected and receive a phase voltage at a first switch midpoint, two second active switches that are serially connected and receive another phase voltage at a second switch midpoint, and two capacitors that are serially connected and receive another phase voltage at a capacitor midpoint between the capacitors.

公开(公告)号：US10924026B2

公开(公告)日：2021-02-16

申请号：US16837037

申请日：2020-04-01

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Sarah Badawi ,  Zhong Y. Cheng ,  Mehdi Narimani ,  Ye Zhang

IPC: H02M5/458 ,  H01F30/14 ,  H02M5/45

Abstract: For a power supply with a reduced number of semiconductor devices, a transformer receives a three-phase primary voltage and steps the three-phase primary voltage up or down to a secondary voltage with a plurality of secondary winding sets to a plurality of first phase voltages, a plurality of second phase voltages, and a plurality of third phase voltages. A plurality of power cell sets each include a plurality of power cells cascaded connected. Each power cell comprises a rectifier and an inverter. The rectifier includes two first active switches that are serially connected and receive a phase voltage at a first switch midpoint, two second active switches that are serially connected and receive another phase voltage at a second switch midpoint, and two capacitors that are serially connected and receive another phase voltage at a capacitor midpoint between the capacitors.

公开(公告)号：US10924025B2

公开(公告)日：2021-02-16

申请号：US16698392

申请日：2019-11-27

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Sarah Badawi ,  Zhong Y. Cheng ,  Mehdi Narimani ,  Ye Zhang

IPC: H02M5/458 ,  H01F30/14 ,  H02M5/45

Abstract: For a power supply with a reduced number of semiconductor devices, a transformer receives a three-phase primary voltage and steps the three-phase primary voltage up or down to a secondary voltage with a plurality of secondary winding sets to a plurality of first phase voltages, a plurality of second phase voltages, and a plurality of third phase voltages. A plurality of power cell sets each include a plurality of power cells cascaded connected. Each power cell comprises a rectifier and an inverter. The rectifier includes two first active switches that are serially connected and receive a phase voltage at a first switch midpoint, two second active switches that are serially connected and receive another phase voltage at a second switch midpoint, and two capacitors that are serially connected and receive another phase voltage at a capacitor midpoint between the capacitors.

公开(公告)号：US20200343821A1

公开(公告)日：2020-10-29

申请号：US16837037

申请日：2020-04-01

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Sarah Badawi ,  Zhong Y. Cheng ,  Mehdi Narimani ,  Ye Zhang

IPC: H02M5/458

Abstract: For a power supply with a reduced number of semiconductor devices, a transformer receives a three-phase primary voltage and steps the three-phase primary voltage up or down to a secondary voltage with a plurality of secondary winding sets to a plurality of first phase voltages, a plurality of second phase voltages, and a plurality of third phase voltages. A plurality of power cell sets each include a plurality of power cells cascaded connected. Each power cell comprises a rectifier and an inverter. The rectifier includes two first active switches that are serially connected and receive a phase voltage at a first switch midpoint, two second active switches that are serially connected and receive another phase voltage at a second switch midpoint, and two capacitors that are serially connected and receive another phase voltage at a capacitor midpoint between the capacitors.