Stacked coil structure and electronic device including the same
地域：
Suwon-si
摘要
An electronic device is provided. The electronic device includes a coil unit, a power transmission circuit electrically connected to the coil unit, and a control circuit configured to wirelessly transmit power using the coil unit, and the coil unit may include a first coil. The first coil may include a first layer wound in a first shape by a first number of turns, and a second layer extending from the first layer and wound in a second shape by a second number of turns, and the second layer may be disposed above the first layer to overlap the first layer.
說(shuō)明書(shū)
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According to an embodiment, the first layer 211 may include a plurality of layers. For example, the first layer 211 may include a (1-1)th layer 211a and a (1-2)th layer 211b disposed below the (1-1)th layer 211a. The (1-1)th layer 211a and the (1-2)th layer 211b may be provided in a ring shape in which one wire is wound in a helical shape and may have a structure of stacked layers connected to each other. According to an embodiment, the number of turns of the (1-1)th layer 211a may be the same as the number of turns of the (1-2)th layer 211b. For example, the (1-1)th layer 211a and the (1-2)th layer 211b may be helically wound at least five times around the central axis O.
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