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    APPARATUS AND METHOD FOR DETECTING FOREIGN OBJECT IN WIRELESS POWER TRANSMITTING SYSTEM
    2.
    发明公开
    APPARATUS AND METHOD FOR DETECTING FOREIGN OBJECT IN WIRELESS POWER TRANSMITTING SYSTEM 审中-公开

    公开(公告)号：US20230396103A1

    公开(公告)日：2023-12-07

    申请号：US18449147

    申请日：2023-08-14

    申请人： GE Hybrid Technologies, LLC

    发明人： Chun Kil Jung ,  Byong Uk Hwang

    IPC分类号： H02J50/60 ,  H02J50/80 ,  H02J50/40 ,  H02J50/12

    CPC分类号： H02J50/60 ,  H02J50/80 ,  H02J50/40 ,  H02J50/12 ,  H02J7/0029

    摘要： The present disclosure provides an apparatus and method for detecting a foreign object in a wireless power transmitting system. The wireless power transmitting apparatus measures an initial transmission power transmitted from the primary core block and performs foreign object detection on the basis of the initial transmission power, once it is found that an initial voltage of an output terminal of the wireless power receiving apparatus connected to an external load is within the range of a reference voltage. By performing foreign object detection while a wireless power receiving apparatus is in an initial setting completion state, before the output of the wireless power receiving apparatus is turned on, delay in detecting foreign objects may be reduced, and a risk due to heating of a foreign object may be avoided.

    Wireless power transmission device, and transmission power control method therefor
    4.
    发明授权
    Wireless power transmission device, and transmission power control method therefor 有权

    公开(公告)号：US11804732B2

    公开(公告)日：2023-10-31

    申请号：US15544882

    申请日：2016-01-20

    申请人： GE HYBRID TECHNOLOGIES, LLC

    发明人： Chun Kil Jung ,  Sang Youn Noh ,  Hak Do Kim

    IPC分类号： H02J50/12 ,  H02J50/40 ,  H02J7/34

    CPC分类号： H02J50/12 ,  H02J7/342 ,  H02J50/40

    摘要： A wireless power transmission device, and a transmission power control method therefor are provided. A wireless power transmission device for wirelessly transmitting power to a wireless power receiving device can comprise: a primary core comprising at least one primary coil and transmitting a power signal to the wireless power receiving device by being coupled, through magnetic induction or magnetic resonance, to a secondary core provided at the wireless power receiving device; an inverter connected to the primary core so as to apply an alternating voltage necessary for transmitting the power signal; and a controller connected to the inverter, and controlling a direct voltage to be applied to the wireless power transmission device and/or a gate voltage of the inverter on the basis of the information on the power received at the wireless power receiving device by the power signal.

    Apparatus and method for detecting foreign object in wireless power transmitting system
    7.
    发明授权
    Apparatus and method for detecting foreign object in wireless power transmitting system 有权

    公开(公告)号：US11750040B2

    公开(公告)日：2023-09-05

    申请号：US17074794

    申请日：2020-10-20

    申请人： GE Hybrid Technologies, LLC

    发明人： Chun Kil Jung ,  Byong Uk Hwang

    IPC分类号： H02J50/60 ,  H02J50/80 ,  H02J50/40 ,  H02J50/12 ,  H02J7/00

    CPC分类号： H02J50/60 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J7/0029

    摘要： The present disclosure provides an apparatus and method for detecting a foreign object in a wireless power transmitting system. The wireless power transmitting apparatus measures an initial transmission power transmitted from the primary core block and performs foreign object detection on the basis of the initial transmission power, once it is found that an initial voltage of an output terminal of the wireless power receiving apparatus connected to an external load is within the range of a reference voltage. By performing foreign object detection while a wireless power receiving apparatus is in an initial setting completion state, before the output of the wireless power receiving apparatus is turned on, delay in detecting foreign objects may be reduced, and a risk due to heating of a foreign object may be avoided.

    WIRELESS POWER TRANSFER WITH LOAD SHARING RECEIVERS
    10.
    发明申请
    WIRELESS POWER TRANSFER WITH LOAD SHARING RECEIVERS 有权

    公开(公告)号：US20220385112A1

    公开(公告)日：2022-12-01

    申请号：US17755940

    申请日：2020-11-10

    申请人： GE Hybrid Technologies, LLC

    发明人： Viswanathan Kanakasabai ,  Suma Memana Narayana Bhat ,  Jayanti Ganesh ,  Rupam Basak

    IPC分类号： H02J50/40 ,  H02J50/90 ,  H02J50/80 ,  H02J50/10 ,  G01R19/10

    摘要： This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless power transmission. A wireless power receiving apparatus may be configured to combine power from multiple wireless power signals. In some implementations, the wireless power receiving apparatus may combine wireless power received from multiple secondary coils to provide a combined wireless power signal to a load, such as a battery charger or electronic device. In some implementations, each set of primary coil and secondary coil may utilize low power wireless power signals (such as 15 Watts or less) in accordance with a wireless charging standard. By combining power from multiple low power wireless power signals, the wireless power receiving apparatus may support higher power requirements of an electronic device. The disclosed designs may minimize electromagnetic interference (EMI) and provide greater efficiency of wireless power transfer.