VARIABLE CAPACITOR SPEED UP CIRCUIT
    25.
    发明申请
    VARIABLE CAPACITOR SPEED UP CIRCUIT 审中-公开
    可变电容器加速电路

    公开(公告)号:WO2018052636A1

    公开(公告)日:2018-03-22

    申请号:PCT/US2017/047269

    申请日:2017-08-17

    Abstract: Techniques for controlling a resonant network are disclosed. An example of an apparatus for varying capacitance in a resonant network includes a variable capacitor circuit configured to vary a capacitance in response to a control signal, at least one biasing component operably coupled to the variable capacitor circuit, and a control circuit configured to generate the control signal, such that the control signal includes a first tuning value corresponding to a first capacitance value, and output the control signal at the first tuning value to reduce an impedance of the at least one biasing component and vary the capacitance of the variable capacitor circuit, such that the impedance of the at least one biasing component subsequently increases when the first capacitance value is realized.

    Abstract translation: 公开了用于控制谐振网络的技术。 用于改变谐振网络中的电容的设备的示例包括:可变电容器电路,被配置为响应于控制信号而改变电容;至少一个偏置部件,可操作地耦合到可变电容器电路;以及控制电路,被配置为生成 控制信号,使得控制信号包括对应于第一电容值的第一调谐值,并且以第一调谐值输出控制信号,以减小至少一个偏置部件的阻抗,并且改变可变电容器电路的电容 ,使得当实现第一电容值时,至少一个偏置部件的阻抗随后增加。

    PHASE ANGLE DETERMINATION OF AC SIGNALS
    26.
    发明申请
    PHASE ANGLE DETERMINATION OF AC SIGNALS 审中-公开
    交流信号的相角确定

    公开(公告)号:WO2017151263A1

    公开(公告)日:2017-09-08

    申请号:PCT/US2017/015931

    申请日:2017-02-01

    Abstract: Methods and circuitry are disclosed to produce a first signal representative of the AC voltage signal and a second signal representative of an AC current signal. The first and second signals may be combined with a clock signal to produce a third signal. A phase angle between the AC voltage signal and the AC current signal may be determined based on a pulse count indicative of how many pulses occur in the third signal over a predetermined period of time.

    Abstract translation: 公开了用于产生表示AC电压信号的第一信号和表示AC电流信号的第二信号的方法和电路。 第一和第二信号可以与时钟信号组合以产生第三信号。 AC电压信号和AC电流信号之间的相位角可以基于指示在预定时间段内第三信号中出现多少个脉冲的脉冲计数来确定。

    METHOD AND APPARATUS FOR CLOSED LOOP POWER ESTIMATION FOR DETERMINATION OF OPTIMAL PLACEMENT OF A POWER RECEIVE UNIT ON A POWER TRANSMIT UNIT WITH VISUAL AND/OR HAPTIC FEEDBACK
    27.
    发明申请
    METHOD AND APPARATUS FOR CLOSED LOOP POWER ESTIMATION FOR DETERMINATION OF OPTIMAL PLACEMENT OF A POWER RECEIVE UNIT ON A POWER TRANSMIT UNIT WITH VISUAL AND/OR HAPTIC FEEDBACK 审中-公开
    用于确定功率接收单元在具有可视和/或信息反馈的发射单元上的最佳放置的闭环功率估计的方法和装置

    公开(公告)号:WO2017030682A1

    公开(公告)日:2017-02-23

    申请号:PCT/US2016/041923

    申请日:2016-07-12

    CPC classification number: H02J50/12 H04B5/0037

    Abstract: An apparatus for receiving wireless power is provided. The apparatus comprises a coupler configured to receive a first amount of wireless power via a wireless field generated by a wireless power transmitter. The apparatus comprises a sensor circuit configured to measure the first amount of wireless power. The apparatus comprises a controller configured to instruct a feedback circuit to provide an indication to a user based on a comparison of the first amount of wireless power measured by the sensor circuit to a power threshold.

    Abstract translation: 提供了一种用于接收无线电力的装置。 该装置包括被配置为经由无线电力发射器产生的无线电场接收第一数量的无线电力的耦合器。 该装置包括被配置为测量第一数量的无线电力的传感器电路。 该装置包括控制器,其被配置为基于由传感器电路测量的第一无线功率量与功率阈值的比较来指示反馈电路向用户提供指示。

    APPARATUS AND METHOD FOR LOST POWER DETECTION
    28.
    发明申请
    APPARATUS AND METHOD FOR LOST POWER DETECTION 审中-公开
    用于失电检测的装置和方法

    公开(公告)号:WO2016044025A1

    公开(公告)日:2016-03-24

    申请号:PCT/US2015/049192

    申请日:2015-09-09

    Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wirelessly transferring power includes an antenna configured to provide wireless power to a chargeable device sufficient to charge or power the chargeable device positioned within a charging region of the antenna. The apparatus further includes a receiver configured to receive from the chargeable device a measurement of a first amount of energy received by the chargeable device over a first period of time. The apparatus further includes a processor configured to measure a second amount of energy provided by the antenna over a second period of time, compare the first amount of energy to the second amount of energy, and determine whether another object is absorbing power provided via the antenna based at least in part on comparing the first amount and the second amount of energy.

    Abstract translation: 描述了用于丢失功率检测的装置和方法。 在一个实施方式中,一种用于无线传输功率的装置包括被配置为向可充电装置提供无线电力的天线,其足以对位于天线的充电区域内的可充电装置充电或供电。 该装置还包括接收器,其被配置为从可计费装置接收由可计费装置在第一时间段内接收的第一能量的量度。 该装置还包括处理器,其被配置为在第二时间段内测量由天线提供的第二能量量,将第一能量量与第二能量量进行比较,并且确定另一物体是否吸收经由天线提供的功率 至少部分地基于比较第一量和第二能量。

    SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL
    29.
    发明申请
    SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL 审中-公开
    使用纤维材料调整磁场分布的系统和方法

    公开(公告)号:WO2016036604A1

    公开(公告)日:2016-03-10

    申请号:PCT/US2015/047512

    申请日:2015-08-28

    Abstract: A uniform magnetic field may provide better performance in wireless power transmitters due to smaller impedance variations in an output of a power amplifier of a wireless power transmitter and also allow for wireless power transmitter pads to be thinner. One aspect of the disclosure provides a device for wireless power transfer. The device comprises a substantially planar transmit antenna that is configured to generate a magnetic field. The device also comprises a pad having a charging surface. At least a portion of the transmit antenna is disposed in the pad. The device also comprises a ferromagnetic material having a shape and a position relative to the transmit antenna. At least one of the shape or position of the ferromagnetic material, or a combination thereof, is selected to modify a distribution of the magnetic field at the charging surface.

    Abstract translation: 由于无线电力发射机的功率放大器的输出端的阻抗变化较小,无线功率发射器的均匀磁场可以提供更好的性能,并且还允许无线功率发射器焊盘更薄。 本公开的一个方面提供了一种用于无线电力传送的装置。 该装置包括被配置为产生磁场的基本上平面的发射天线。 该装置还包括具有充电表面的垫。 发射天线的至少一部分设置在垫中。 该装置还包括具有相对于发射天线的形状和位置的铁磁材料。 选择铁磁材料的形状或位置中的至少一个或其组合来修改充电表面处的磁场分布。

    WIRELESS POWER TRANSFER THROUGH A METAL OBJECT
    30.
    发明申请
    WIRELESS POWER TRANSFER THROUGH A METAL OBJECT 审中-公开
    通过金属物体进行无线电力传输

    公开(公告)号:WO2016007234A1

    公开(公告)日:2016-01-14

    申请号:PCT/US2015/033351

    申请日:2015-05-29

    Abstract: A method and system for providing wireless power transfer through a metal object is provided. In one aspect, an apparatus for wirelessly receiving power via a magnetic field is provided. The apparatus includes a metal cover including an inner portion and an outer portion. The outer portion is configured to form a loop around the inner portion of the metal cover. The outer portion is configured to inductively couple power via the magnetic field. The apparatus includes a receive circuit electrically coupled to the outer portion and configured to receive a current from the outer portion generated in response to the magnetic field. The receive circuit is configured to charge or power a load based on the current.

    Abstract translation: 提供了一种通过金属物体提供无线电力传输的方法和系统。 一方面,提供一种经由磁场无线接收电力的装置。 该装置包括金属盖,其包括内部部分和外部部分。 外部构造成围绕金属盖的内部部分形成环。 外部部分被配置为通过磁场感应地耦合电力。 该装置包括电耦合到外部部分并被配置为接收来自响应于该磁场产生的外部部分的电流的接收电路。 接收电路被配置为基于电流对负载充电或供电。

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