2020•IEEJ Transactions on Fundamentals and MaterialsOpen access

Reduction of AC Copper Loss in Rectangular Copper Wire using Magnetic Path Control Technology

Kenta Torishima, Kazuhiro Shimura, Mitsuhide Sato, Tsutomu Mizuno

Abstract

The rectangular copper wire is used in all kinds of electronic equipment, and they are required to reduce loss. Among the losses of rectangular copper wires, AC copper loss caused by skin effect and proximity effect is the dominant in the high frequency band. This paper describes the effect of reducing the AC copper loss of a rectangular copper wire using the magnetic path control technology.

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Key concepts: Copper, Copper loss, Copper wire, Materials science, Metallurgy, Composite material, Electrical engineering, Engineering