公开(公告)号：US11336217B2

公开(公告)日：2022-05-17

申请号：US16958868

申请日：2018-12-29

Applicant: CSMC TECHNOLOGIES FAB2 CO., LTD. ,  SOUTHEAST UNIVERSITY

Inventor： Rui Zhong ,  Mingshu Zhang ,  Sen Zhang ,  Jinyu Xiao ,  Wei Su ,  Weifeng Sun ,  Longxing Shi

IPC: H02P25/08 ,  H02P23/04

Abstract: A method and an apparatus for reducing noise of a switched reluctance motor, includes: supplying a PWM signal as a driving signal to a driving circuit of a switched reluctance motor; and varying a carrier frequency of the PWM signal as an operation period of the switched reluctance motor varies; if the switched reluctance motor changes phase, determining that the operation period of the switched reluctance motor varies.