Design and Implementation of a MHz Frequency Transformer with a Ferromagnetic Fluid Core

Erol Kurt () and Sude Hatem
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Erol Kurt: Department of Electrical and Electronics Engineering, Technology Faculty, Gazi University, Besevler, Ankara 06500, Turkey
Sude Hatem: Department of Electrical and Electronics Engineering, Faculty of Engineering, Cankaya University, Ankara 06690, Turkey

Sustainability, 2022, vol. 15, issue 1, 1-32

Abstract: Design and optimization of a magnetic fluid cored transformer are studied for high frequency applications. An easy and cheap fluid core is designed and used to decrease the eddy current and loses, thereby low conducting and paramagnetic features are added. The core exhibits both fluid and solid characteristics exerting high frequency modes in the fluid and low current due to the iron powder inside. The finite element analysis simulations are performed via COMSOL Multi-physics package for different mass fractions of iron powder. The maximum peak-to-peak voltage and power are found as 526 mV and 188.8 mW at 12 MHz from the simulations. 3D patterns prove that the magnetic flux and magnetization exhibit turbulence in the core, thereby localized magnetic values indicate an arbitrary attitude for various frequencies. Optimum mass fraction is found as 0.7, which is parallel with experimental results. The transformer operates between 11 MHz and 13.5 MHz optimally.

Keywords: transformer; magnetic core; magnetic fluid; high frequency; MHz (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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