Title :
Formula for dynamic power loss in ferrite cores taking into account displacement current
Author :
Sakaki, Yo ; Yoshida, Mitsunobu ; Sato, Toshiro
Author_Institution :
Chiba Univ., Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
A formula for dynamic power loss taking into account the displacement current effect is introduced. The calculations based on the formula and the variation of core parameters, i.e., frequency dependence of resistivity, permeability, and permittivity, are compared values measured from 10 kHz to 10 MHz. In this frequency range the resistivity has a more dominant influence on the power loss than the other parameters
Keywords :
electrical conductivity of solids; ferrite devices; magnetic cores; magnetic leakage; magnetic permeability; permittivity; 10 kHz to 10 MHz; calculations; core parameters; displacement current effect; dynamic power loss; ferrite cores; formula; frequency dependence; permeability; permittivity; resistivity; Conductivity; Dielectric losses; Electrical resistance measurement; Ferrites; Frequency measurement; Loss measurement; Magnetic cores; Magnetic flux; Permittivity measurement; Power measurement;
Journal_Title :
Magnetics, IEEE Transactions on
