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    Wireless power overvoltage protection circuit with reduced power dissipation
    4.
    发明授权
    Wireless power overvoltage protection circuit with reduced power dissipation 有权
    无线电源过压保护电路，功耗降低

    公开(公告)号：US09130369B2

    公开(公告)日：2015-09-08

    申请号：US13797674

    申请日：2013-03-12

    Applicant: QUALCOMM Incorporated

    Inventor： Edward Kenneth Kallal ,  Pavel Monat ,  Ryan Tseng

    IPC: H02H9/00 ,  H02H3/20 ,  H02J7/00 ,  H02J7/02 ,  H02J5/00 ,  H02H9/04

    CPC classification number: H02H3/20 ,  H02H9/04 ,  H02J5/005 ,  H02J7/0029 ,  H02J7/025 ,  H02J50/27

    Abstract: Systems, methods, and apparatus for overvoltage protection in a wireless power receiver are disclosed. One aspect of the disclosure is a wireless power receiver apparatus. The apparatus includes an antenna circuit configured to wirelessly receive power, from a transmitter, at a level sufficient to power or charge a load, wherein the antenna circuit is electrically connected to an overvoltage protection circuit that is electrically connected between the antenna circuit and the load. The apparatus also includes a matching circuit electrically connected to the antenna circuit and a switching element electrically connected to the matching circuit. At least one of the matching circuit or the switching element is configured to control an amount of the received power flowing into the overvoltage protection circuit.

    Abstract translation: 公开了一种用于无线电力接收器中的过电压保护的系统，方法和装置。 本公开的一个方面是一种无线电力接收装置。 该装置包括：天线电路，被配置为从发射机以足以对负载供电或充电的电平无线地接收电力，其中天线电路电连接到电连接在天线电路和负载之间的过电压保护电路 。 该装置还包括电连接到天线电路的匹配电路和电连接到匹配电路的开关元件。 匹配电路或开关元件中的至少一个被配置为控制流入过电压保护电路的接收功率的量。

    AUXILIARY RECEIVER COIL TO ADJUST RECEIVER VOLTAGE AND REACTANCE
    6.
    发明申请
    AUXILIARY RECEIVER COIL TO ADJUST RECEIVER VOLTAGE AND REACTANCE 有权
    辅助接收机线圈调整接收器电压和反应

    公开(公告)号：US20160285280A1

    公开(公告)日：2016-09-29

    申请号：US14671627

    申请日：2015-03-27

    Applicant: QUALCOMM Incorporated

    Inventor： Edward Kenneth Kallal ,  William Henry Von Novak, III

    IPC: H02J5/00 ,  H02J7/02 ,  H01F38/14

    CPC classification number: H02J5/005 ,  H01F38/14 ,  H02J7/025 ,  H02J50/10

    Abstract: In a wireless charging system, a receiver device includes a second coil that performs a reactance shift. The reactance shift may be used to conform the device reactance to a reactance range, or to adjust a rectified voltage of the wireless power provided to the device electronics. The reactance shift differs from resonance matching in that the power transfer efficiency may be decreased.

    Abstract translation: 在无线充电系统中，接收机装置包括执行电抗移位的第二线圈。 电抗移位可用于使器件电抗符合电抗范围，或者调整提供给器件电子设备的无线电源的整流电压。 电抗偏移不同于谐振匹配，因为功率传输效率可能降低。

    APPARATUS AND METHOD FOR NON-COMPLIANT OBJECT DETECTION
    7.
    发明申请
    APPARATUS AND METHOD FOR NON-COMPLIANT OBJECT DETECTION 有权
    不符合目标检测的装置和方法

    公开(公告)号：US20150054453A1

    公开(公告)日：2015-02-26

    申请号：US14335655

    申请日：2014-07-18

    Applicant: QUALCOMM Incorporated

    Inventor： Mark D. WHITE, II ,  Edward Kenneth Kallal ,  Ryan Tseng ,  Joseph N. Maalouf

    IPC: G01R29/08 ,  H02J7/02

    CPC classification number: H02J50/12 ,  G01R21/01 ,  G01R29/0814 ,  G01V3/12 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/007 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0075

    Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wireless transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to determine a first and second power difference between a first and second power measurement and the second and a third power measurement of the power level provided by the wireless power transmitter at a first, second, and third sample time, respectively. The controller is further configured to determine a transmitter power difference between the first power difference and the second power difference. The controller is further configured to determine an absence or a presence of an object that affects consumption of power transmitted by the wireless power transmitter based at least on the transmitter power difference Δ_T.

    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，一种用于无线传送电力的设备包括：无线电力发射机，被配置为以足以对可计费设备供电或充电的功率电平无线发射功率。 该装置还包括一个控制器，被配置为在第一，第二和第三采样时间确定第一和第二功率测量之间的第一和第二功率差以及由无线功率发射器提供的功率电平的第二和第三功率测量 ， 分别。 控制器还被配置为确定第一功率差和第二功率差之间的发射机功率差。 所述控制器还被配置为至少基于所述发射机功率差D D T _T来确定影响由所述无线功率发射机发射的功率的消耗的对象的不存在或不存在。

    WIRELESS POWER TRANSFER USING A FIELD ALTERING CIRCUIT
    9.
    发明申请
    WIRELESS POWER TRANSFER USING A FIELD ALTERING CIRCUIT 审中-公开
    使用现场改造电路进行无线电力传输

    公开(公告)号：US20160352147A1

    公开(公告)日：2016-12-01

    申请号：US15075344

    申请日：2016-03-21

    Applicant: QUALCOMM Incorporated

    Inventor： William Henry Von Novak, III ,  Edward Kenneth Kallal ,  Cody Burton Wheeland ,  Seong Heon Jeong

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

    CPC classification number: H02J50/12 ,  B60L11/182 ,  H02J5/005 ,  H02J7/025 ,  H02J50/80 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

    Abstract: A wireless power transmitter includes a power transmit coil configured to generate a magnetic field for wirelessly coupling charging power to one or more receiver devices, the magnetic field having a magnetic field distribution over an area defining a charging region, a circuit configured to alter the magnetic field generated by the power transmit coil to alter the magnetic field distribution, and a controller operably coupled to the circuit, the controller configured to control the circuit to alter the magnetic field distribution responsive to a detected characteristic of the one or more receiver devices.

    Abstract translation: 无线电力发射机包括被配置为产生用于将充电功率无线耦合到一个或多个接收机设备的磁场的功率发射线圈，所述磁场在限定充电区域的区域上具有磁场分布，电路被配置为改变磁 由所述功率发射线圈产生的磁场以改变所述磁场分布;以及控制器，其可操作地耦合到所述电路，所述控制器被配置为响应于所述一个或多个接收器设备的检测到的特性来控制所述电路来改变所述磁场分布。

    SYSTEMS AND METHODS FOR DETECTING WIRELESS CHARGING TRANSMIT CHARACTERISTICS
    10.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING WIRELESS CHARGING TRANSMIT CHARACTERISTICS 有权
    用于检测无线充电发送特性的系统和方法

    公开(公告)号：US20140091634A1

    公开(公告)日：2014-04-03

    申请号：US13801981

    申请日：2013-03-13

    Applicant: QUALCOMM INCORPORATED

    Inventor： Gabriel Isaac Mayo ,  Ryan Tseng ,  Edward Kenneth Kallal

    IPC: H02J17/00

    CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075

    Abstract: This disclosure provides systems, methods and apparatus for detecting wireless charging transmit characteristics. One aspect of the disclosure provides a method of detecting a transmit characteristic in a wireless power transmission device. The device includes a series element electrically coupled to a transmit coil. The method includes determining real and imaginary components of a first voltage at a first terminal of the series element. The method further includes determining real and imaginary components of a second voltage at a second terminal of the series element. The method further includes determining real and imaginary components of a current through the series element, based on the determined first and second voltages. The method further includes determining transmit characteristics such as nodal voltages, currents, power and impedances based on determined voltages and currents. The method further includes adjusting a characteristic of a wireless power transmission based on the determined transmit characteristics.

    Abstract translation: 本公开提供了用于检测无线充电传输特性的系统，方法和装置。 本公开的一个方面提供一种检测无线电力传输装置中的发射特性的方法。 该装置包括电耦合到发射线圈的串联元件。 该方法包括确定串联元件的第一端处的第一电压的实分量和虚分量。 该方法还包括确定串联元件的第二端处的第二电压的实分量和虚分量。 该方法还包括基于确定的第一和第二电压来确定通过串联元件的电流的实部和虚部。 该方法还包括基于确定的电压和电流来确定传输特性，例如节点电压，电流，功率和阻抗。 该方法还包括基于确定的传输特性来调整无线功率传输的特性。

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