公开(公告)号：US11984814B2

公开(公告)日：2024-05-14

申请号：US17033442

申请日：2020-09-25

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Lixiang Wei ,  Peizhong Yi ,  Robert W. Reese ,  Brian P. Brown ,  Jatinkumar Patel

IPC: H02P27/08 ,  H02M1/08 ,  H02M7/217 ,  H02P6/12 ,  H02P27/06 ,  H02M1/00

CPC classification number: H02M7/2173 ,  H02M1/083 ,  H02P27/06 ,  H02M1/0058 ,  H02P2201/01

Abstract: For open loop phase pre-charge, an apparatus includes a Switching Mode Power Supply (SMPS) charging diode and a charge generator. The SMPS charging diode pre-charges an SMPS to a regulation set point from at least one phase of an Alternating Current (AC) voltage. The charge generator is powered by the pre-charged SMPS. In response to detecting the regulation set point iteratively, the charge generator detects a specified phase angle of the AC voltage. In response to the specified phase angle, the charge generator iteratively generates a charging voltage during positive voltage interval that charges a Direct Current (DC) bus capacitor to a target DC bus voltage within a charging time interval. At least a portion of the charge generator comprises one or more of hardware and executable code, the executable code stored on one or more computer readable storage media.

公开(公告)号：US20220103090A1

公开(公告)日：2022-03-31

申请号：US17033442

申请日：2020-09-25

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Lixiang Wei ,  Peizhong Yi ,  Robert W. Reese ,  Brian P. Brown ,  Jatinkumar Patel

IPC: H02M7/217 ,  H02P27/06 ,  H02M1/08

Abstract: For open loop phase pre-charge, an apparatus includes a Switching Mode Power Supply (SMPS) charging diode and a charge generator. The SMPS charging diode pre-charges an SMPS to a regulation set point from at least one phase of an Alternating Current (AC) voltage. The charge generator is powered by the pre-charged SMPS. In response to detecting the regulation set point iteratively, the charge generator detects a specified phase angle of the AC voltage. In response to the specified phase angle, the charge generator iteratively generates a charging voltage during positive voltage interval that charges a Direct Current (DC) bus capacitor to a target DC bus voltage within a charging time interval. At least a portion of the charge generator comprises one or more of hardware and executable code, the executable code stored on one or more computer readable storage media.