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    Wireless power transmitter, electronic device and controlling method thereof
    101.
    发明授权
    Wireless power transmitter, electronic device and controlling method thereof 有权

    公开(公告)号：US11444481B2

    公开(公告)日：2022-09-13

    申请号：US17022471

    申请日：2020-09-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kyung-Woo Lee ,  Sang-Wook Kwon

    IPC: H02J7/04 ,  H02J7/02 ,  H04B1/3827 ,  H02J50/20 ,  H02J50/90 ,  H01Q21/06 ,  H04B5/00 ,  H02J50/40

    Abstract: A wireless power transmitter includes an antenna and a processor configured to control the antenna to respectively transmit detection powers in a plurality of directions, the detection powers including a first detection power and a second detection power, the first detection power including a first direction information and identification information of the wireless power transmitter, the first detection power being transmitted in a first direction, the second detection power including a second direction information and the identification information of the wireless power transmitter, the second detection power being transmitted in a second direction different from the first direction; control to receive a communication signal including the first direction information and the identification information of the wireless power transmitter from an electronic device which received the first detection power; and based on receiving the communication signal, control the antenna to transmit power for charging in the first direction.

    Power transmitting method and power transmitter for communication with power receiver
    102.
    发明授权
    Power transmitting method and power transmitter for communication with power receiver 有权

    公开(公告)号：US11192460B2

    公开(公告)日：2021-12-07

    申请号：US16859383

    申请日：2020-04-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kang-Ho Byun ,  Kyung-Woo Lee ,  Young-Min Lee ,  Se-Ho Park ,  Yu-Su Kim ,  Sung-Ku Yeo

    IPC: B60L53/12 ,  H02J5/00 ,  H04B5/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

    Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

    Wireless power receiver and controlling method thereof
    104.
    发明授权
    Wireless power receiver and controlling method thereof 有权

    公开(公告)号：US11043856B2

    公开(公告)日：2021-06-22

    申请号：US17028533

    申请日：2020-09-22

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yu-Su Kim ,  Se-Ho Park ,  Sung-Ku Yeo ,  Kang-Ho Byun ,  Kyung-Woo Lee

    IPC: H02J50/80 ,  H02J7/04 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90 ,  H02J7/00

    Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.

    Method and apparatus for transmitting wireless power
    105.
    发明授权
    Method and apparatus for transmitting wireless power 有权

    公开(公告)号：US10958080B2

    公开(公告)日：2021-03-23

    申请号：US16911014

    申请日：2020-06-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Se-Ho Park

    IPC: H02J50/10 ,  H02J50/90 ,  H04B5/00 ,  H02J50/60 ,  H02J50/80 ,  H02J7/00 ,  H02J50/40 ,  H02J50/12 ,  H02J7/02 ,  H04W52/02 ,  H02J5/00

    Abstract: A method and apparatus are provided for operating a wireless power transmitter. The method includes controlling the wireless power transmitter to wirelessly transmit power for charging a first power receiver, and while transmitting the power, receiving a search signal from a second power receiver, transmitting a search response signal corresponding to the search signal, and receiving, from the second power receiver, a request join signal including at least one piece of information associated with a power requirement of the second power receiver. Based on identifying that the wireless power transmitter is capable of providing the power having an amount greater than the power requirement of the second power receiver, the method further includes transmitting a charge start command to the second power receiver.

    Apparatus and method for transmitting wireless power
    106.
    发明授权
    Apparatus and method for transmitting wireless power 有权

    公开(公告)号：US10931144B2

    公开(公告)日：2021-02-23

    申请号：US16748297

    申请日：2020-01-21

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Se-Ho Park

    IPC: H02J50/10 ,  H02J7/00 ,  H02J50/40 ,  H02J50/80 ,  H04W52/02

    Abstract: A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

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