Reducing heat generation in a boost inductor using a magnetic tape

Issue title: 20th International Symposium on Applied Electromagnetics and Mechanics

Guest editors: Theodoros Theodoulidis, Christos Antonopoulos, Nikolaos Kantartzis, Ioannis Rekanos and Theodoros Zygiridis

Article type: Research Article

Authors: Shimura, Kazuhiro^a; | Kanaya, Takanori^a | Hoshina, Syuichi^a | Kobayashi, Shigeki^a | Sato, Mitsuhide^a | Sonehara, Makoto^a | Sato, Toshiro^a | Mizuno, Tsutomu^a

Affiliations: [a] Electrical and Electronic Engineering, Shinshu University, Nagano, Japan

Correspondence: [*] Corresponding author: Kazuhiro Shimura, Electrical and Electronic Engineering, Shinshu University, Wakasato 4-17-1, 380-8553, Nagano, Japan. Tel.: +81 26 269 5204; Fax: +81 26 269 5215; E-mail: 21hs204f@shinshu-u.ac.jp

Abstract: Increasing the switching frequency of direct current–direct current converters is effective in reducing the size of magnetic components used in converters. However, as the switching frequency increases, the loss and heat generated by the magnetic components increase. Therefore, in this study, a magnetic tape that bypasses the magnetic flux in the windings of magnetic components is proposed to reduce the loss and heat generation of these components. The effect of suppressing the temperature rise of magnetic components with a magnetic tape during the converter drive was investigated. The temperature rise of a 1-MHz 100-V/200-V 800-W boost inductor was reduced by 16.8 K by applying the magnetic tape. Additionally, applying the magnetic tape to the inductor reduced the heat generation.

Keywords: Inductor, DC–DC converter, magnetic composite material

DOI: 10.3233/JAE-220124

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 71, no. S1, pp. S85-S94, 2023