Title :
Acoustic noise analysis of molybdenum permalloy powder core transformers
Author_Institution :
Bell Telephone Laboratories, Whippany, New Jersey, USA
Abstract :
Acoustic noise in a molybdenum permalloy powder (MPP) core transformer is analyzed and modeled as vibration induced by magnetostriction. The model indicates the relationship between physical parameters, primary and secondary waveforms, and the magnetostriction coefficient and their effects on acoustic output.
Keywords :
Acoustics; Magnetic cores; Magnetoacoustic effects; Magnetostriction; Toroidal magnetic fields; Vibrations;
Conference_Titel :
Power Electronics Specialists Conference, 1975 IEEE
Conference_Location :
Culver City, California, USA
DOI :
10.1109/PESC.1975.7085601
