ELECTRONIC DEVICE FOR WIRELESS CHARGING IN MAGNETIC RESONANCE TYPE

    公开(公告)号:US20240195229A1

    公开(公告)日:2024-06-13

    申请号:US18584418

    申请日:2024-02-22

    Inventor: Wooram LEE Yusu KIM

    CPC classification number: H02J50/60 G06V40/10 H02J50/12 H02J50/80 G01R29/0878

    Abstract: A power receiving device comprises: a camera; a coil configured to resonate at a designated frequency; a power receiving circuit configured to rectify a power signal received from a power transmitting device through the coil; a wireless communication circuit for wireless communication with the power transmitting device; at least one processor, comprising processing circuitry, electrically connected to the camera, the coil, the power receiving circuit, and the wireless communication circuit; and a memory connected to the processor. At least one processor, individually and/or collectively, is configured to: receive identification information for identifying the exterior of the power transmitting device from the power transmitting device through the wireless communication circuit; receive first notification information to notify the proximity of an object from the power transmitting device through the wireless communication circuit; identifying a first object corresponding to the power transmitting device, based on the identification information, from an image received from the camera, in response to receiving the first notification information; determine whether a second object corresponding to a human body exists in the image; and transmit second notification information indicating that the approaching object is a human body, to the power transmitting device through the wireless communication circuit, based on the first object being identified from the image, and based on the second object being deemed to exist in the image.

    METHOD FOR CONTROLLING WIRELESS CHARGING MODE AND DEVICE THEREFOR

    公开(公告)号:US20230402878A1

    公开(公告)日:2023-12-14

    申请号:US18450759

    申请日:2023-08-16

    CPC classification number: H02J50/12 H02J50/20 H02J50/40 G06F1/266

    Abstract: An electronic device is provided. The electronic device includes a wireless charging circuit and a processor operatively connected to the wireless charging circuit, wherein the processor is configured to wireless receive power wireless from an external device through the wireless charging circuit on the basis of a first wireless charging mode using a first frequency, detect a second frequency rather than the first frequency through the wireless charging circuit, and determine, in response to detecting the second frequency, whether to change the charging mode from the first wireless charging mode to a second wireless charging mode, based on at least one of a wireless charging efficiency or an output voltage of the electronic device.

    METHOD FOR DETECTING FOREIGN MATERIAL OF WIRELESS POWER TRANSMISSION APPARATUS

    公开(公告)号:US20240364140A1

    公开(公告)日:2024-10-31

    申请号:US18768749

    申请日:2024-07-10

    Inventor: Yusu KIM

    Abstract: A wireless power transmission apparatus is provided. The apparatus includes a converter configured to perform a DC/DC power conversion operation, an inverter connected to the converter and configured to perform an AC/DC power conversion operation, a coil connected to the inverter, memory storing one or more computer programs, and one or more processors communicatively coupled to the converter, the inverter, the coil, and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the wireless power transmission device to control the inverter to transmit first power of a first frequency through the coil, compare a first current input to the inverter through the converter with a reference value while the first power is transmitted, identify whether a packet from the outside is identified based on the first current being greater than the reference value, control the inverter to transmit second power having a second frequency lower than the first frequency through the coil based on the packet not being identified while the first power is transmitted, identify whether the packet is identified based on the second current being larger than the reference value, and identify that a foreign material is present, based on the packet not being identified while the second power is transmitted.

    WIRELESS POWER CHARGING METHOD AND ELECTRONIC DEVICE USING SAME

    公开(公告)号:US20220077722A1

    公开(公告)日:2022-03-10

    申请号:US17428908

    申请日:2020-01-23

    Abstract: An electronic device may comprise: a battery; a charging circuit; a wireless power receiver circuit configured to acquire transmitted power wirelessly output from an external electronic device; and a processor. The processor may be configured to control the electronic device to: charge the battery through the charging circuit using received power acquired through the wireless power receiver circuit; identify at least one piece of information related to the charging, while the charging operation is performed; transmit a designated signal corresponding to suspension of the transmitted power to the external electronic device such that the external electronic device enters a wireless charging standby mode, in which the external electronic device holds the operation of outputting the transmitted power, at least partially based on the at least one piece of information; identify first situation information regarding the electronic device during the wireless charging standby mode; identify second situation information regarding the electronic device, in response to identifying the first situation information; and sense the electronic device being detached from the external electronic device based on the electronic device corresponding to the first situation information and the second situation information.

    METHOD FOR WIRELESS POWER TRANSFER AND ELECTRONIC DEVICE THEREOF

    公开(公告)号:US20210399590A1

    公开(公告)日:2021-12-23

    申请号:US17284625

    申请日:2019-10-08

    Abstract: Various embodiments of the present invention relate to wireless power transfer (WPT). An electronic device comprises a battery, a charging circuit for controlling a charging state of the battery, a coil, a wireless power transfer circuit electrically connected to the coil, and a control circuit, wherein the control circuit may be configured to: check a state related to charging of the battery; transfer a wireless charging parameter related to generation or modification of a power signal for transferring to an external electronic device via the coil, which is determined at least on the basis of the state related to charging of the battery; receive a response signal corresponding to the transfer of the wireless charging parameter from the external electronic device; generate, on the basis of the response signal, a power signal corresponding to the amount of wireless transmission power determined at least on the basis of the response signal by using the wireless power transfer circuit; and transfer the power signal to the external electronic device through the coil. In addition, various embodiments are possible.

    ELECTRONIC DEVICE AND METHOD FOR CONTROLLING WIRELESS CHARGING

    公开(公告)号:US20200266650A1

    公开(公告)日:2020-08-20

    申请号:US16698741

    申请日:2019-11-27

    Abstract: An electronic device includes a wireless charging coil, a wireless charging circuit, a power management module, a battery, and a processor. The processor is configured to control to receive first information from an external electronic device while transmitting wireless charging power to the external electronic device through the wireless charging circuit, to control, in response to receiving the first information, the wireless charging circuit to stop transmission of the wireless charging power and operate in a state of transmitting and receiving a ping signal, to check whether a predetermined time has elapsed since the transmission of the wireless charging power is stopped, and to control, in response to elapse of the predetermined time, the wireless charging circuit to retransmit the wireless charging power to the external electronic device. Other embodiments are possible.

    WIRELESS CHARGING METHOD AND ELECTRONIC DEVICE SUPPORTING SAME

    公开(公告)号:US20240322598A1

    公开(公告)日:2024-09-26

    申请号:US18732349

    申请日:2024-06-03

    CPC classification number: H02J50/10 H02J7/00712 H02J50/80

    Abstract: An electronic device is configured to enable a power transmission circuit to transmit a first signal to an external electronic device through the charging coil by using a driving signal having a first frequency, to identify whether information indicating a modulation depth of a voltage output from a rectifier circuit of the external electronic device is received from the external electronic device, and to determine whether to adjust the frequency of the driving signal from the first frequency to a second frequency different from the first frequency, based on whether the information is received.

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