知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.013 seconds)

    SYSTEMS, APPARATUS, AND METHODS FOR QUANTIFYING POWER LOSSES DUE TO INDUCTION HEATING IN WIRELESS POWER RECEIVERS
    1.
    发明申请
    SYSTEMS, APPARATUS, AND METHODS FOR QUANTIFYING POWER LOSSES DUE TO INDUCTION HEATING IN WIRELESS POWER RECEIVERS 有权
    系统，装置和方法，用于在无线电源接收机中对感应加热进行功率损耗定量

    公开(公告)号：US20150054352A1

    公开(公告)日：2015-02-26

    申请号：US14464550

    申请日：2014-08-20

    Applicant: QUALCOMM Incorporated

    Inventor： Edward Kenneth KALLAL ,  Mark WHITE, II ,  Ryan TSENG

    IPC: H02J5/00

    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: Systems, methods and apparatus are disclosed for detecting power losses due to induction heating in wireless power receivers. In one aspect, an apparatus for wireless power transfer comprises a power transfer component configured to transmit wireless power to a wireless power receiver at a power level sufficient to charge or power a load. The apparatus further comprises a communications receiver configured to receive a message from the wireless power receiver, the message comprising a group identifier. The apparatus further comprises a controller circuit operationally coupled to the power transfer component and the communications receiver and configured to determine a power loss value based on the group identifier, the power loss value indicative of power loss due to induction heating presented by one or more wireless power receivers that are members of a group associated with the group identifier.

    Abstract translation: 公开了用于检测由无线电力接收器中的感应加热引起的功率损耗的系统，方法和装置。 一方面，一种用于无线电力传输的装置包括功率传输组件，其被配置为以足以对负载充电或供电的功率电平向无线电力接收器发送无线电力。 该装置还包括被配置为从无线功率接收器接收消息的通信接收机，该消息包括组标识符。 该装置还包括操作上耦合到功率传输部件和通信接收器的控制器电路，并且被配置为基于组标识符来确定功率损耗值，功率损耗值表示由一个或多个无线电产生的感应加热引起的功率损耗 功率接收器是与组标识符相关联的组的成员。

    POWER DISSIPATION CONTROL FOR A WIRELESS POWER RECEIVER
    2.
    发明申请
    POWER DISSIPATION CONTROL FOR A WIRELESS POWER RECEIVER 审中-公开

    公开(公告)号：US20180109145A1

    公开(公告)日：2018-04-19

    申请号：US15676275

    申请日：2017-08-14

    Applicant: QUALCOMM Incorporated

    Inventor： William Henry VON NOVAK, III ,  Mark WHITE, II ,  Eric MATTIS

    IPC: H02J50/12 ,  H03H7/40

    CPC classification number: H02J50/12 ,  A61N1/3787 ,  G05F1/66 ,  H02J7/025 ,  H03H7/40

    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for power dissipation control for a wireless power receiver. Certain aspects of the present disclosure provide a wireless power receiver. The wireless power receiver includes a resonator including an inductor and a capacitor. The resonator is configured to couple to a wireless field. The wireless field induces a voltage in the resonator. The capacitor is coupled to the inductor. The capacitor is configured to at least one of shunt tune or series tune the resonator. The wireless power receiver further includes a control circuit configured to at least one of selectively couple the capacitor to the inductor or adjust a capacitance of the capacitor based on at least one of a temperature near the wireless power receiver or an electrical characteristic of a thermally conductive path between the wireless power receiver and a surrounding thermal environment.

    PHASE AND MAGNITUDE CONTROL FOR WIRELESS POWER TRANSMITTERS
    5.
    发明申请
    PHASE AND MAGNITUDE CONTROL FOR WIRELESS POWER TRANSMITTERS 审中-公开

    公开(公告)号：US20180337546A1

    公开(公告)日：2018-11-22

    申请号：US15597944

    申请日：2017-05-17

    Applicant: QUALCOMM Incorporated

    Inventor： William Henry VON NOVAK, III ,  Mark WHITE, II ,  Seong Heon JEONG

    IPC: H02J7/02 ,  H01F38/14 ,  A61N1/378

    CPC classification number: H02J7/025 ,  A61N1/3787 ,  H01F38/14 ,  H02J50/12 ,  H02J50/80 ,  H02J2007/0096

    Abstract: Certain aspects of the present disclosure are generally directed to apparatus and techniques for wireless charging. One example apparatus generally includes a plurality of inductive elements and signal generation circuitry coupled to the plurality of inductive elements and configured to generate a plurality of signals, where at least two signals of the plurality of signals have different magnitudes. In certain aspects, the signal generation circuitry is configured to drive the plurality of inductive elements using the plurality of signals, where at least one first inductive element of the plurality of inductive elements is driven using at least one first signal of the plurality of signals having a first phase and at least one second inductive element of the plurality of inductive elements is driven using at least one second signal of the plurality of signals having a second phase different from the first phase.

    OVER VOLTAGE PROTECTION DETECTION
    6.
    发明申请
    OVER VOLTAGE PROTECTION DETECTION 审中-公开

    公开(公告)号：US20180241249A1

    公开(公告)日：2018-08-23

    申请号：US15438985

    申请日：2017-02-22

    Applicant: QUALCOMM Incorporated

    Inventor： William Henry VON NOVAK, III ,  Mark WHITE, II

    IPC: H02J50/12 ,  H03H7/38 ,  H02J7/02

    CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/80

    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for detecting, by a wireless power transmitter, an over voltage protection at a wireless power receiver. Certain aspects of the present disclosure provide a wireless power transmitter. The wireless power transmitter includes a resonator configured to generate a wireless field for wirelessly transferring power to a wireless power receiver. The wireless power transmitter further includes an impedance detector configured to measure an impedance of the resonator. The wireless power transmitter further includes a controller configured to detect operation of an over voltage protection mode of the wireless power receiver based on a frequency of change in impedance as measured by the impedance detector.

Patent Agency Ranking