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    SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL
    1.
    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

    Applicant: QUALCOMM Incorporated

    Inventor： Saeed Nejatali ,  Francesco Carobolante ,  Ryan Tseng ,  Mei-Li Chi ,  Seong Heon Jeong

    IPC: H02J5/00 ,  H02J17/00

    CPC classification number: H02J5/005 ,  H01F27/365 ,  H01F38/14 ,  H02J7/0044 ,  H02J7/025 ,  H02J50/12

    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。

    APPARATUS AND METHOD FOR A CURRENT SENSOR
    2.
    发明申请
    APPARATUS AND METHOD FOR A CURRENT SENSOR 审中-公开
    电流传感器的装置和方法

    公开(公告)号：US20170074908A1

    公开(公告)日：2017-03-16

    申请号：US14854443

    申请日：2015-09-15

    Applicant: QUALCOMM Incorporated

    Inventor： Saeed Nejatali ,  Seong Heon Jeong ,  Francesco Carobolante ,  David Fern

    IPC: G01R15/20 ,  H02J7/04 ,  H02J7/02

    CPC classification number: G01R15/20 ,  G01R15/181 ,  G01R19/0092 ,  G01R33/0076 ,  H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0081

    Abstract: A current sensor may include a sense element disposed proximate a conductor. The current sensor may be configured to couple to a first magnetic field generated at the conductor when current flows in the conductor. An output electrically connected to the sense element can produce a signal that is representative of the flow of current in the conductor. The sense element may be oriented in a plane parallel to magnetic field lines of a second magnetic field generated by a load connected to the conductor.

    Abstract translation: 电流传感器可以包括设置在导体附近的感测元件。 电流传感器可以被配置为当电流在导体中流动时耦合到在导体处产生的第一磁场。 电连接到感测元件的输出可以产生代表导体中的电流的信号。 感测元件可以在与由连接到导体的负载产生的第二磁场的磁场线平行的平面中取向。

    APPARATUS AND METHOD FOR A CURRENT SENSOR
    5.
    发明申请
    APPARATUS AND METHOD FOR A CURRENT SENSOR 有权
    电流传感器的装置和方法

    公开(公告)号：US20160231364A1

    公开(公告)日：2016-08-11

    申请号：US14618343

    申请日：2015-02-10

    Applicant: QUALCOMM Incorporated

    Inventor： Saeed Nejatali ,  Francesco Carobolante ,  Linda Stacey Irish ,  Cody Wheeland ,  Gregory Bachmanek

    IPC: G01R19/00

    CPC classification number: G01R15/20 ,  G01R15/181 ,  G01R19/0092 ,  G01R33/0076 ,  H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0081

    Abstract: Disclosed is a current sensor that senses current flow in a conductor by coupling a first magnetic field generated by the conductor to a sense element. The current sensor includes a shield including a first material that sandwiches the sense element to define a stack and a second material that sandwiches the stack. The shield is configured to generate a second magnetic field, responsive to a third magnetic field external to the current sensor that opposes the third magnetic field. The shield is further configured to prevent production of a magnetic field that opposes the first magnetic field generated by the flow of current in the conductor.

    Abstract translation: 公开了一种电流传感器，其通过将由导体产生的第一磁场耦合到感测元件来感测导体中的电流流动。 电流传感器包括屏蔽，其包括夹着感测元件以限定叠层的第一材料和夹持该叠层的第二材料。 屏蔽被配置为响应于与第三磁场相对的电流传感器外部的第三磁场产生第二磁场。 屏蔽还被配置成防止产生与由导体中的电流流动产生的第一磁场相反的磁场。

    PHASE ANGLE DETERMINATION OF AC SIGNALS
    6.
    发明申请
    PHASE ANGLE DETERMINATION OF AC SIGNALS 审中-公开

    公开(公告)号：US20170254841A1

    公开(公告)日：2017-09-07

    申请号：US15059151

    申请日：2016-03-02

    Applicant: QUALCOMM Incorporated

    Inventor： Saeed Nejatali ,  Linda Irish ,  David Fern ,  Francesco Carobolante, II

    IPC: G01R25/08

    CPC classification number: G01R25/08 ,  H02J50/12

    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.

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