Title :
Experimental evaluation of the influence of DC-premagnetization on the properties of power electronic ferrites
Author :
Brockmeyer, Ansgar
Author_Institution :
Inst. for Power Electron. & Electrical Drives, Aachen Univ. of Technol., Germany
Abstract :
In many power electronic applications, ferrite cores of magnetic components are biased with a DC or low-frequency premagnetization. Usually however, the influence of the bias on the losses and permeability is not considered in the component design. This paper describes a precise measurement setup to determine the power losses and the magnetization curve of premagnetized ferrites. The measurements on typical ferrites of two major manufacturers prove that the influence of a DC-bias on the material properties cannot be neglected
Keywords :
ferrite devices; loss measurement; magnetic cores; magnetic permeability; magnetic variables measurement; magnetisation; power electronics; DC-bias; DC-premagnetization; component design; ferrite cores; magnetic components; magnetization curve; material properties; measurement setup; permeability; power electronic ferrites; power losses; Ferrites; Loss measurement; Magnetic cores; Magnetic losses; Magnetization; Manufacturing; Material properties; Permeability; Power electronics; Power measurement;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500481
