Equivalent electrical model of a Ferrite core inductor excited by a square waveform including saturation and power losses for circuit simulation Articles uri icon

publication date

  • July 2013

start page

  • 4257

end page

  • 4260

issue

  • 7

volume

  • 49

International Standard Serial Number (ISSN)

  • 0018-9464

Electronic International Standard Serial Number (EISSN)

  • 1941-0069

abstract

  • We propose a model of an equivalent electrical circuit specifically designed for a ferrite inductor excited by a nonsinusoidal waveform valid for use in an electronic circuit simulator. We estimate the model parameters by means of Finite Elements in 2-D which leads to significant computational advantages over the 3-D model. We carry out the validation of the procedure for an RM14/I core by comparing the experimental and simulated output waveforms obtained at different frequencies and levels of excitation from the linear to the saturation regions. In addition, we consider the effect of power losses in the core.

keywords

  • ferrite inductors; 2-d finite element analysis; power losses; saturation