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    Systems and methods for limiting voltage in wireless power receivers
    12.
    发明授权
    Systems and methods for limiting voltage in wireless power receivers 有权
    无线电力接收器中限制电压的系统和方法

    公开(公告)号：US09508487B2

    公开(公告)日：2016-11-29

    申请号：US13622204

    申请日：2012-09-18

    Applicant: QUALCOMM INCORPORATED

    Inventor： William H. Von Novak ,  Joseph L. Archambault ,  Adam J. Wood ,  Edward Kallal ,  Ryan Tseng ,  Gabriel Isaac Mayo

    IPC: H01F38/14 ,  H04B5/00 ,  H02J5/00 ,  H02J7/02

    CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037

    Abstract: This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.

    Abstract translation: 本公开提供了用于限制无线电力接收器中的电压的系统，方法和装置。 一方面，一种装置包括被配置为从发射机无线地接收功率的功率传输组件。 该装置还包括耦合到功率传输部件并且被配置为当激活时减小接收电压的电路。 该装置还包括控制器，其被配置为当接收电压达到第一阈值时激活电路，并且被配置为当接收电压达到第二阈值时停用电路。 该装置还包括配置成向发射机产生信号的天线，该信号向发射机发出接收电压达到第一阈值。

    APPARATUS AND METHOD FOR NON-COMPLIANT OBJECT DETECTION
    13.
    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。

    PROTECTION DEVICE AND METHOD FOR POWER TRANSMITTER
    14.
    发明申请
    PROTECTION DEVICE AND METHOD FOR POWER TRANSMITTER 有权
    用于发电机的保护装置和方法

    公开(公告)号：US20140071571A1

    公开(公告)日：2014-03-13

    申请号：US13837638

    申请日：2013-03-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： Ryan Tseng ,  Sreenivas Kasturi ,  Edward Kenneth Kallal, III ,  Milorad Radovic ,  William H. Von Novak, III

    IPC: H02H3/20

    CPC classification number: H02H3/20 ,  H02J5/005 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B1/0466 ,  H04B5/0037 ,  H04B5/0093 ,  H04B17/103

    Abstract: Aspects of a protection circuit and method are disclosed. A transmit circuit generates a power transmit signal for powering the transmit antenna to generate a wireless field sufficient for wirelessly charging a device. A detection circuit senses a strength of an electromagnetic field received by the transmit antenna and further configured to generate an sense signal indicating the strength of the electromagnetic field received by the transmit antenna. A power control circuit controls a switch based at least partly on the sense signal. The power control circuit can attenuate an electrical coupling between the transmit antenna and the transmit circuit such that the received electromagnetic field is inhibited from damaging the transmit antenna or the transmit circuit.

    Abstract translation: 公开了保护电路和方法的方面。 发射电路产生用于为发射天线供电的功率发射信号，以产生足以对装置进行无线充电的无线电场。 检测电路感测由发射天线接收的电磁场的强度，并进一步被配置为产生指示由发射天线接收的电磁场的强度的感测信号。 功率控制电路至少部分地基于感测信号来控制开关。 所述功率控制电路可以衰减所述发射天线和所述发射电路，使得所接收的电磁场损坏发射天线或发射电路抑制之间的电耦合。

    Method and apparatus for wireless power transmission
    15.
    发明授权
    Method and apparatus for wireless power transmission 有权

    公开(公告)号：US09912173B2

    公开(公告)日：2018-03-06

    申请号：US14846441

    申请日：2015-09-04

    Applicant: QUALCOMM Incorporated

    Inventor： Ryan Tseng

    IPC: H01F27/42 ,  H02J5/00 ,  H02J50/12 ,  H02J50/90 ,  H02J50/40 ,  A61C17/22 ,  H01F38/14 ,  H02J7/02 ,  H02J17/00 ,  H01F17/00

    CPC classification number: H02J5/005 ,  A61C17/224 ,  H01F17/0006 ,  H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

    Abstract: Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies. Embodiments of the invention also pertain to planar inductors having characteristics that allow the production of even magnetic field, as well as systems that incorporate such planar inductors.

    Push-pull driver with stage inversion and method of operation
    18.
    发明授权
    Push-pull driver with stage inversion and method of operation 有权
    推挽驱动器具有舞台反转和操作方法

    公开(公告)号：US09196418B2

    公开(公告)日：2015-11-24

    申请号：US13659657

    申请日：2012-10-24

    Applicant: QUALCOMM Incorporated

    Inventor： Ryan Tseng

    IPC: H01F38/14 ,  H02J17/00 ,  H02J7/02 ,  H04B5/00

    CPC classification number: H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0075

    Abstract: Systems, methods, and apparatus for amplifying a voltage in wireless power transmitters are disclosed. In one aspect, the transmitter comprises a first circuit configured to generate a first signal. The first signal comprises a non-inverted output. The transmitter further comprises a second circuit configured to generate a second signal in phase with the first signal. The second signal comprises an inverted output with respect to the non-inverted output. The first circuit and the second circuit are further configured to drive a load.

    Abstract translation: 公开了用于放大无线电力发射机中的电压的系统，方法和装置。 在一个方面，发射机包括被配置为产生第一信号的第一电路。 第一信号包括非反相输出。 发射机还包括被配置为产生与第一信号同相的第二信号的第二电路。 第二信号包括相对于非反相输出的反相输出。 第一电路和第二电路进一步配置成驱动负载。

    SYSTEMS AND METHODS FOR MEASURING POWER AND IMPEDANCE IN WIRELESS POWER CHARGING SYSTEMS
    19.
    发明申请
    SYSTEMS AND METHODS FOR MEASURING POWER AND IMPEDANCE IN WIRELESS POWER CHARGING SYSTEMS 有权
    无线电力充电系统测量功率和阻抗的系统和方法

    公开(公告)号：US20150333797A1

    公开(公告)日：2015-11-19

    申请号：US14278074

    申请日：2014-05-15

    Applicant: QUALCOMM Incorporated

    Inventor： Abdolhossein Nejatali ,  Francesco Carobolante ,  Ryan Tseng

    IPC: H04B5/00 ,  H04B17/11 ,  H04L7/033 ,  H04B17/21

    CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H04B5/0043 ,  H04B17/11 ,  H04B17/21 ,  H04L7/0332

    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 detecting wireless charging transmit characteristics
    20.
    发明授权
    Systems and methods for detecting wireless charging transmit characteristics 有权
    用于检测无线充电传输特性的系统和方法

    公开(公告)号：US09190876B2

    公开(公告)日：2015-11-17

    申请号：US13801981

    申请日：2013-03-13

    Applicant: QUALCOMM Incorporated

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

    IPC: H01F27/42 ,  H01F37/00 ,  H02J17/00 ,  H04B5/00

    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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