Title :
Radio frequency interference of electric motors and controls
Author :
Jabbar, M.A. ; Rahman, M.A.
Author_Institution :
Maxtor Singapore Ltd., Singapore
Abstract :
Problems of RF interference (RFI) caused by electric motors used in appliances are discussed. Legal limits on RFI are briefly considered. Two methods for reducing RFI are examined at length: the use of proper design techniques, or suppression of the noise by using suppression components. Design factors discussed are the magnetic/electric ratio and the effects of commutator shift, brushes, and mechanics. The discussion of suppression techniques covers power-line filters, capacitive and inductive suppression, positioning of suppression components, ferrite bead suppression, and cable-handling techniques.<>
Keywords :
electric motors; interference suppression; radiofrequency interference; RF interference; RFI; brushes; cable-handling techniques; capacitive suppression; commutator shift; electric motors; ferrite bead suppression; inductive suppression; magnetic/electric ratio; power-line filters; Electric motors; Electromagnetic interference; Home appliances; Law; Legal factors; Magnetic noise; Magnetic separation; Noise reduction; Radio control; Radiofrequency interference;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96654
