WIRELESS POWER TRANSFER IN WEARABLE DEVICES
    32.
    发明申请

    公开(公告)号:US20170229913A1

    公开(公告)日:2017-08-10

    申请号:US15018377

    申请日:2016-02-08

    CPC classification number: H02J50/12 H02J7/0042 H02J50/10

    Abstract: Disclosed is an electronic device having a band to secure the electronic device to a user. The electronic device may include a first power receiving element arranged with the band, configured to couple to an externally generated magnetic field to wirelessly receive power. The electronic device may include a second power receiving element arranged along a portion of the band spaced apart from the first power receiving element, configured to couple to the externally generated magnetic field to wirelessly receive power.

    Apparatus and method for lost power detection
    33.
    发明授权
    Apparatus and method for lost power detection 有权
    丢失功率检测的装置和方法

    公开(公告)号:US09543782B2

    公开(公告)日:2017-01-10

    申请号:US14489970

    申请日:2014-09-18

    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 measuring power and impedance in wireless power charging systems
    34.
    发明授权
    Systems and methods for measuring power and impedance in wireless power charging systems 有权
    无线充电系统中测量功率和阻抗的系统和方法

    公开(公告)号:US09369183B2

    公开(公告)日:2016-06-14

    申请号:US14278074

    申请日:2014-05-15

    Abstract: A wireless power transmitter may generate a magnetic field via a transmit antenna to induce voltage in a receive antenna of a wireless power receiver to power the unit and/or charge the receiver's battery. An apparatus for measuring wireless power transfer at an operating frequency between the transmitter and the receiver is provided. The apparatus comprises a first clock configured to generate a first clock signal at a first clock frequency that is higher than the operating frequency of the wireless power transfer. The apparatus further comprises a controller configured to operate based on a second clock signal, the first clock frequency higher than a second clock frequency of the second clock signal. The controller is further configured to measure an amount of wireless power transfer based on the first clock signal.

    Abstract translation: 无线电力发射器可以经由发射天线产生磁场,以在无线电力接收器的接收天线中感应出电压,为该单元供电和/或对接收器的电池充电。 提供了一种用于在发射机和接收机之间的工作频率测量无线功率传输的装置。 该装置包括第一时钟,其被配置为以比无线电力传送的工作频率高的第一时钟频率产生第一时钟信号。 该装置还包括控制器,其被配置为基于第二时钟信号操作第一时钟频率,该第一时钟频率高于第二时钟信号的第二时钟频率。 控制器还被配置为基于第一时钟信号来测量无线功率传输的量。

    SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL
    36.
    发明申请
    SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL 有权
    使用纤维材料调整磁场分布的系统和方法

    公开(公告)号:US20160072296A1

    公开(公告)日:2016-03-10

    申请号:US14478461

    申请日:2014-09-05

    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。

    Variable wireless power transmission

    公开(公告)号:US09252629B2

    公开(公告)日:2016-02-02

    申请号:US14589816

    申请日:2015-01-05

    Abstract: Exemplary embodiments are directed to variable power wireless power transmission. A method may include conveying wireless power to a device at a first power level during a time period. The method may further include conveying wireless power to one or more other devices at a second, different power level during another time period.

    SYSTEMS AND METHODS FOR EXTENDING THE POWER CAPABILITY OF A WIRELESS CHARGER
    38.
    发明申请
    SYSTEMS AND METHODS FOR EXTENDING THE POWER CAPABILITY OF A WIRELESS CHARGER 有权
    用于扩展无线充电器功率的系统和方法

    公开(公告)号:US20150028801A1

    公开(公告)日:2015-01-29

    申请号:US14259012

    申请日:2014-04-22

    CPC classification number: H02J50/12 H02J7/00 H02J7/34 H02J50/60 H02J50/90

    Abstract: Systems and methods for converting voltages between different voltage levels in a receiver are disclosed. In an aspect, a wireless power receiver apparatus for charging a chargeable device is provided. The wireless power receiver apparatus for charging a chargeable device can include a receive antenna configured to wirelessly receive power at a level sufficient for charging the chargeable device. The wireless power receiver apparatus can also include converter circuitry. The converter circuitry can be coupled to the receive antenna. The converter circuitry can be configured to receive an input voltage derived from the wirelessly received power. The converter circuitry can also be configured to produce an output voltage that is scaled to a value relative to the input voltage based on a relationship between the input voltage and a first voltage level threshold.

    Abstract translation: 公开了用于在接收机中转换不同电压电平之间的电压的系统和方法。 一方面,提供了一种用于对可计费装置充电的无线电力接收装置。 用于对可充电装置充电的无线电力接收装置可以包括被配置为以足以对可计费装置充电的水平无线地接收电力的接收天线。 无线电力接收装置还可以包括转换器电路。 转换器电路可以耦合到接收天线。 转换器电路可以被配置为接收从无线接收功率导出的输入电压。 转换器电路还可以被配置为基于输入电压和第一电压电平阈值之间的关系产生相对于输入电压被缩放到一个值的输出电压。

    SYSTEMS AND METHODS FOR EXTENDING THE POWER CAPABILITY OF A WIRELESS CHARGER
    39.
    发明申请
    SYSTEMS AND METHODS FOR EXTENDING THE POWER CAPABILITY OF A WIRELESS CHARGER 审中-公开
    用于扩展无线充电器功率的系统和方法

    公开(公告)号:US20140266018A1

    公开(公告)日:2014-09-18

    申请号:US13797754

    申请日:2013-03-12

    Abstract: This disclosure provides systems, methods and apparatus for wireless power transfer. In one aspect, an apparatus transfers energy wirelessly to at least one receive antenna of at least one receiver. The apparatus comprises a first antenna configured to generate a first wireless field when the at least one receiver is in an energy transfer region of the first transmit antenna. The apparatus further comprises a second antenna configured to generate a second wireless field when the at least one receiver is in an energy transfer region of the second transmit antenna. The apparatus further comprises a controller configured to activate at least one of the first antenna or the second antenna based on whether the at least one receiver is in an energy transfer region of one or both of the first and second wireless fields.

    Abstract translation: 本公开提供了用于无线电力传输的系统,方法和装置。 在一个方面,一种装置将能量无线地传送到至少一个接收器的至少一个接收天线。 所述装置包括第一天线,其被配置为当所述至少一个接收机处于所述第一发射天线的能量传输区域中时产生第一无线电场。 所述设备还包括第二天线,其被配置为当所述至少一个接收机处于所述第二发射天线的能量传输区域中时产生第二无线电场。 所述装置还包括控制器,所述控制器被配置为基于所述至少一个接收机是否在所述第一和第二无线区域中的一个或两者的能量传送区域中来激活所述第一天线或所述第二天线中的至少一个。

    Wireless power transfer through a metal object

    公开(公告)号:US10381875B2

    公开(公告)日:2019-08-13

    申请号:US14616021

    申请日:2015-02-06

    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.

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