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    Adaptive power control for wireless charging of devices
    1.
    发明授权
    Adaptive power control for wireless charging of devices 有权
    用于设备无线充电的自适应功率控制

    公开(公告)号：US08497658B2

    公开(公告)日：2013-07-30

    申请号：US12616034

    申请日：2009-11-10

    申请人： William H Von Novak ,  Stanley S Toncich ,  Stanton C Braden ,  Ian J Fevrier

    发明人： William H Von Novak ,  Stanley S Toncich ,  Stanton C Braden ,  Ian J Fevrier

    IPC分类号： H02J7/00

    CPC分类号： H02J50/20 ,  H01F38/14 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04W52/04 ,  Y10T307/25

    摘要： Exemplary embodiments are directed to wireless power transfer. A transmitter generates an electromagnetic field at a resonant frequency with a transmit antenna to create a coupling-mode region within a near field of the transmit antenna. The transmitter defines a beginning of a recurring period by on-off keying the electromagnetic field during a synchronization portion of the recurring period. During a power transmission portion of the recurring period, the transmitter couples portions of the electromagnetic field to different receive antennas of various receiver devices within the coupling-mode region. The transmitter also determines a power allocation within the recurring period for the various receiver devices disposed within the coupling-mode region and adjusts a power level of the near field radiation responsive to power requirements received from the receiver devices.

    摘要翻译： 示例性实施例涉及无线功率传输。 发射机利用发射天线产生谐振频率的电磁场，以在发射天线的近场内产生耦合模式区域。 发射机通过在循环周期的同步部分期间通过开关键控电磁场来定义重复周期的开始。 在循环周期的功率传输部分期间，发射机将电磁场的部分耦合到耦合模式区域内的各种接收机设备的不同接收天线。 发射机还确定布置在耦合模式区域内的各种接收机设备的周期性周期内的功率分配，并响应于从接收机设备接收到的功率需求来调整近场辐射的功率电平。