Equivalence among strands in PCB litz-wire inductors applied to domestic induction heating

Issue title: Selected papers from the Heating by Electromagnetic Sources Conference 2016 (HES-2016)

Guest editors: Paolo Di Barba, Fabrizio Dughiero, Michele Forzan and Elisabetta Sieni

Article type: Research Article

Authors: Lope, I.^{a; b} | Carretero, C.^{c; *} | Acero, J.^a | Serrano, J.^a | Burdío, J.M.^a

Affiliations: [a] Departamento Ingeniería Electrónica y Comunicaciones, Universidad de Zaragoza, Zaragoza, Spain | [b] BSH Home Appliances Spain, Zaragoza, Spain | [c] Departamento Física Aplicada, Universidad de Zaragoza, Zaragoza, Spain

Correspondence: [*] Corresponding author: C. Carretero, Departamento Física Aplicada, Universidad de Zaragoza, María de Luna s/n, 50018 Zaragoza, Spain. Tel.: +34 976762590; E-mail:[email protected]

Abstract: Cost-effective solutions for domestic induction heating appliances have become a priority in recent years. With this purpose, the implementation of Printed Circuit Board (PCB) inductors has entailed important research efforts. A proper litz structure is essential to achieve high-efficiency PCB inductors. This structure requires routing the traces by using vias in a double layer PCB to obtain the appropriate transposition pattern. In this paper, the optimal number of vias has been analyzed to minimize the power losses in the coil. This analysis has been carried out based on numerical calculations whose results have been experimentally verified.

Keywords: Home appliances, induction heating, magnetic devices

DOI: 10.3233/JAE-162244

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 53, no. S1, pp. S129-S137, 2017