Open AccessEquivalent circuit of a ferrite-wound inductor in a wide frequency range (0 Hz – 500 MHz)
Author(s) -
В Ф Дмитриков,
Д В Шушпанов
Publication year - 2022
Publication title -
fizika volnovyh processov i radiotehničeskie sistemy
Language(s) - English
Resource type - Journals
eISSN - 2782-294X
pISSN - 1810-3189
DOI - 10.18469/1810-3189.2021.24.4.25-45
Subject(s) - inductor , equivalent circuit , electrical impedance , ferrite (magnet) , ferrite core , materials science , equivalent impedance transforms , electrical engineering , optoelectronics , acoustics , engineering , physics , composite material , voltage , electromagnetic coil
Based on the measured impedance of the inductors wound on various ferrite cores and with a different number of turns, an equivalent high frequency (0 Hz 500 MHz) circuit model was built. The equivalent circuit model was built taking into account the physical processes occurring in the inductor: effect of wire resistance, effect of core material, mutual effect of wire and core material. The attempt explaining why the frequency characteristics (modulus and phase) of the inductor complex impedance have such a character in a wide frequency band (up to 500 MHz) was made. It was shown that for constructing an equivalent circuit model (structure and parameters), measuring only the inductors resistance modulus is not enough. It is also necessary to measure the phase of the inductor complex resistance, which is ignored in many works on the synthesis of an e inductor equivalent circuit.