公开(公告)号：US20240154524A1

公开(公告)日：2024-05-09

申请号：US18549013

申请日：2021-03-05

Applicant: ABB Schweiz AG

Inventor： Liming Liu ,  Shanghua Li ,  Zach Z. Pan ,  Yu Zhang

IPC: H02M1/44 ,  H02M1/12 ,  H02M1/42

CPC classification number: H02M1/44 ,  H02M1/123 ,  H02M1/4208

Abstract: A robotic device for reducing electromagnetic interference (EMI) noise and suppress leakage current is provided. The robotic device comprises a controller configured to control phase-shift switching of a plurality of axes to reduce electromagnetic interference (EMI) noise and suppress leakage current, an electrical circuit, and a plurality of loads coupled to a plurality of motors of the plurality of axes. The electrical circuit comprises a power source and rectifier; an EMI filter configured to further reduce the EMI noise and suppress the leakage current from the plurality of axes; and the plurality of axes comprising a plurality of drives and a plurality of motors that are configured to operate the plurality of loads.