公开(公告)号：US20210296882A1

公开(公告)日：2021-09-23

申请号：US17206366

申请日：2021-03-19

Applicant: Danfoss Power Electronics A/S

Inventor： Per Knudsen ,  Ansgar Nielsen ,  Henrik Rosendal Andersen

IPC: H02H7/08 ,  H02P27/08 ,  H02P23/14

Abstract: The present invention relates to a motor controller providing a dual-channel functional-safety (FS) safe-torque-off (STO) function when controlling a motor. The motor controller includes an inverter with low-side switches and high-side switches, a low-side gate drive connected to the low-side switches, a high-side gate drive connected to the high-side switches, a first functional-safety safe-torque-off circuit connected to the high-side gate drive and a second functional-safety safe-torque-off circuit connected to the low-side gate drive, and a non-rein-forced high-voltage isolation barrier.

公开(公告)号：US11749982B2

公开(公告)日：2023-09-05

申请号：US17206366

申请日：2021-03-19

Applicant: Danfoss Power Electronics A/S

Inventor： Per Knudsen ,  Ansgar Nielsen ,  Henrik Rosendal Andersen

IPC: H02P23/14 ,  H02P27/08 ,  H02H7/08

CPC classification number: H02H7/0844 ,  H02P23/14 ,  H02P27/085

Abstract: The present invention relates to a motor controller providing a dual-channel func-tional-safety (FS) safe-torque-off (STO) function when controlling a motor. The motor controller includes an inverter with low-side switches and high-side switches, a low-side gate drive connected to the low-side switches, a high-side gate drive connected to the high-side switches, a first functional-safety safe-torque-off circuit connected to the high-side gate drive and a second functional-safety safe-torque-off circuit connected to the low-side gate drive, and a non-reinforced high-voltage isolation barrier.