Design and Assessment of Track Structures in High-Frequency Planar Inductors

Pouya Kolahian (), Mehdi Zarei Tazehkand and Mehdi Baghdadi
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Pouya Kolahian: Mechanical Engineering Department, University College London (UCL), London WC1E 7JE, UK
Mehdi Zarei Tazehkand: Mechanical Engineering Department, University College London (UCL), London WC1E 7JE, UK
Mehdi Baghdadi: Mechanical Engineering Department, University College London (UCL), London WC1E 7JE, UK

Energies, 2024, vol. 17, issue 4, 1-18

Abstract: This paper investigates the effect of different designs and arrangements of conductors on the operational parameters of a planar inductor. Accordingly, it is suggested that there is no one-size-fits-all design that can achieve all desired parameters in every application, and the best design should be determined by the needs of the application. In order to have a comprehensive study, four different structures are considered and compared. Numerous design parameters such as track width, track length, location of the conductors between the central limb and the lateral limb, and number of transposition points among subtracks for both air-core and ferrite-core inductors are considered. Each structure is evaluated according to AC resistance, R A C / R D C , and inductance. Measurement results reveal that it is critical to take into account all three characteristics when deciding the suitable structure for the conductors. Studies are carried out based on measurement results for experimental prototypes in the frequency range of 10 Hz–1 MHz, and a set of guidelines is provided with regard to the design of planar inductors to achieve desired characteristics.

Keywords: planar inductors; Litz structure; skin effect; proximity effect (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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