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Bechir M.H.,Jean Monnet University | Bechir M.H.,Institute National Superieur Des Science Et Techniques Dabeche | Yaya D.D.,Jean Monnet University | Yaya D.D.,Institute National Superieur Des Science Et Techniques Dabeche | And 7 more authors.
Analog Integrated Circuits and Signal Processing | Year: 2016

In this paper, we present a new planar inductor model with magnetic layer. This equivalent circuit model takes into account the variation of the magnetic core permeability and the core losses versus frequency, the capacitive coupling between winding turns, the capacitive coupling between the external turn and the ground plane. In this model, we also consider the skin and the proximity effects. HFSS software is used for the simulation. In order to extract the different parameters of the equivalent circuit model, we have developed an optimization program. Inductors with one and two magnetic layers have been fabricated with thicknesses varying between 100 and 500 µm. A very good agreement between simulation results, experimental values and extracted parameters has been observed. The use of two magnetic layers allows to significantly increase the inductance value even with thin layers. © 2016 Springer Science+Business Media New York Source


Yaya D.D.,CNRS Hubert Curien Laboratory | Yaya D.D.,Institute National Superieur Des Science Et Techniques Dabeche | Capraro S.,CNRS Hubert Curien Laboratory | Capraro S.,Institute National Superieur Des Science Et Techniques Dabeche | And 7 more authors.
Microsystem Technologies | Year: 2016

This article concerns the development, the fabrication and the characterization of integrated inductors using magnetic layers for use in power electronics. Properties of inductors were extracted using an electrical model which takes into account eddy current. Inductors with one and two magnetic layers were fabricated with thicknesses varying between 100 and 500 µm. Measurements carried out with a Vector Network Analyzer up to 350 MHz are presented. The results show that the use of one magnetic layer allows the inductance of the coreless inductor to be multiplied by two and an inductor with two magnetic layers allows the inductance of the coreless inductor to be multiplied by 15 for 500 µm magnetic thickness layers. © 2016 Springer-Verlag Berlin Heidelberg Source

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