Wireless charging coil and electronic device including the same

    公开(公告)号:US12087500B2

    公开(公告)日:2024-09-10

    申请号:US17158501

    申请日:2021-01-26

    Inventor: Seungshik Shin

    CPC classification number: H01F38/14 H02J7/02 H02J50/005 H02J50/10

    Abstract: A wireless charging coil and an electronic device is provided. The coil includes a plurality of inner patterns arranged adjacent to a center of the coil, having a first line width, and wound spirally, and a plurality of outer patterns arranged on an outer side of the plurality of inner patterns, having a second line width, and wound spirally, wherein the plurality of inner patterns are arranged at a first interval, wherein the plurality of outer patterns are arranged at a second interval, wherein a maximum gap that is larger than the first interval and the second interval is disposed between the plurality of inner patterns and the plurality of outer patterns, and wherein the maximum gap is arranged in a first direction from the center of the coil.

    Electronic device and method for transmitting power based on multiple coils

    公开(公告)号:US12003119B2

    公开(公告)日:2024-06-04

    申请号:US17742554

    申请日:2022-05-12

    Abstract: According to various embodiments, an electronic device may comprise a battery, a multi-coil circuit including a first coil and a second coil, a magnetic field control circuit electrically connected with the multi-coil circuit, a power management module electrically connected with the battery and the magnetic field control circuit, and a processor electrically connected with the multi-coil circuit, the magnetic field control circuit, and the power management module. Upon detecting an external electronic device to receive wireless power, the processor may control the magnetic field control circuit to transmit power having a first characteristic to the external electronic device through the first coil, and upon transmitting the power having the first characteristic, control the magnetic field control circuit to maintain transmission through the first coil based on a first operating frequency and a threshold operating frequency in a designated frequency range, or upon transmitting the power having the first characteristic, adjust an operating voltage based on the first operating frequency and the threshold operating frequency and control the magnetic field control circuit to transmit power having a second characteristic through the first coil and the second coil based on a first frequency varied in response to the adjusted operating voltage. Other embodiments may also be possible.

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