Hitachi-Lg Data Storage Korea, Inc.

Hyunwook Ha

Hogil Lee

Provided is a method of designing coils for transmitting or receiving power wirelessly. The method includes determining a length and a width of a core on which a first coil and second and third coils are disposed, and determining radii and a number of turns of the first to third coils, wherein each of the second and third coils overlaps one side of the first coil. The method further includes determining an operating frequency of the coils and a thickness of the core, determining an optimal thickness of a foil constituting the first to third coils by measuring AC resistances of the first to third coils, and determining an optimal width of the foil by measuring the AC resistances of the first to third coils, whereby an enhanced configuration of the coils is provided.

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Seoul, South Korea

Hyunwook Ha