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    Electronic device and method for wireless charging in electronic device
    2.
    发明授权
    Electronic device and method for wireless charging in electronic device 有权

    公开(公告)号：US11489368B2

    公开(公告)日：2022-11-01

    申请号：US16545025

    申请日：2019-08-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sung-Ku Yeo ,  Dong-Zo Kim ,  Bong-Chul Kim ,  Yu-Su Kim

    IPC: H02J50/12 ,  G06F1/26 ,  G06F1/00 ,  H02J50/60 ,  H02J7/00 ,  H02J50/10 ,  H02J50/80 ,  H02J7/02

    Abstract: An electronic device includes a controller to receive a signal from an external electronic device, and, based at least in part on the received signal, identify a wireless power scheme among at least two wireless power schemes. During the transmission mode, the controller controls the full bridge circuit to convert DC power to AC power based on a wireless power frequency corresponding to the identified wireless power scheme by controlling at least one transistor of the full bridge circuit, and controls to wirelessly transmit power based on the AC power to the external electronic device. During the reception mode, the controller controls to receive power from the external electronic device, controls the full bridge circuit to convert the received power to DC power by controlling transistors of the full bridge circuit, and controls to provide the converted DC power for the battery of the electronic device.

    Wireless power receiver
    4.
    发明授权
    Wireless power receiver 有权

    公开(公告)号：US10075018B2

    公开(公告)日：2018-09-11

    申请号：US14965421

    申请日：2015-12-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung-Bum Park ,  Do-Won Kim ,  Young-Ho Ryu ,  Dong-Zo Kim ,  Jae-Hyun Park ,  Keum-Su Song ,  Sung-Ku Yeo

    IPC: H02J5/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/12

    CPC classification number: H02J50/10 ,  H02J50/12 ,  H02J50/40

    Abstract: A wireless power receiver is disclosed. A wireless power receiver according to various embodiments of the present disclosure includes a resonant reception unit configured to receive wireless power by a resonance scheme; an inductive reception unit configured to receive wireless power by an induction scheme; and a power processing unit configured to process wireless power received at the resonant reception unit and the inductive reception unit. When the wireless power is received by the induction scheme, a current flowing in the inductive reception unit is greater than a current flowing in the resonant reception unit, and when the wireless power is received by the resonance scheme, a current flowing in the resonant reception unit is greater than a current flowing in the inductive reception unit.

    Wireless power receiver and method for controlling the wireless power receiver
    7.
    发明授权
    Wireless power receiver and method for controlling the wireless power receiver 有权

    公开(公告)号：US10135289B2

    公开(公告)日：2018-11-20

    申请号：US15362050

    申请日：2016-11-28

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Bong-Chul Kim ,  Dong-Zo Kim ,  Sung-Ku Yeo

    IPC: H02J7/02

    Abstract: A wireless power receiver and a method for controlling the wireless power receiver are provided. The wireless power receiver includes a resonant circuit configured to receiving electromagnetic waves from a wireless power transmitter and output alternate current (AC) power, a rectifier configured to rectify the AC power received from the resonant circuit into direct current (DC) power, a DC/DC converter configured to convert the DC power received from the rectifier and output the converted DC power, a battery, a charger configured to charge the battery with the converted DC power, and a controller configured to, upon detection of an event indicating a change in impedance at an output end of the DC/DC converter, control the impedance at the output end of the DC/DC converter and keep the impedance constant by adjusting voltage at the output end of the DC/DC converter.

    Method and electronic device for performing wireless charging
    10.
    发明授权
    Method and electronic device for performing wireless charging 有权

    公开(公告)号：US11171512B2

    公开(公告)日：2021-11-09

    申请号：US15830416

    申请日：2017-12-04

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyoung-Won Kim ,  Dong-Zo Kim ,  Se-Ho Park ,  Kwang-Seob Kim ,  Chang-Hak O ,  Ju-Hyang Lee ,  Hyung-Koo Chung ,  Se-Hyun Cho

    IPC: H02J50/10 ,  H02J7/02 ,  H02J50/80 ,  H02J50/12

    Abstract: A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.

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