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

    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。

    METHODS AND SYSTEM FOR CONTROLLING A WIRELESS POWER TRANSMITTER

    公开(公告)号:US20180301923A1

    公开(公告)日:2018-10-18

    申请号:US15489667

    申请日:2017-04-17

    Abstract: An aspect of this disclosure is an apparatus for transmitting power wirelessly. The apparatus comprises a detection circuit and a processor. The apparatus also includes a power amplifier driving an antenna circuit of flexible antenna(s) configured for wireless power transfer. The processor determines that at least one measured variable of the power amplifier falls outside of a corresponding threshold range, indicative of a deformation of a physical shape of one of the flexible antennas or indicative of misalignment of the flexible antennas from a power receiver. The processor further commands the power amplifier to transition to a first power mode from a second power mode based on the determination that at least one of the measured variables falls outside of the corresponding threshold range. The antenna circuit in the first power mode transmits power at a power level less than the power level in the second power mode.

    Ultrasonic Power Transmission With Impedance Detection

    公开(公告)号:US20190229560A1

    公开(公告)日:2019-07-25

    申请号:US15875687

    申请日:2018-01-19

    Abstract: An apparatus is disclosed that implements ultrasonic power transmission with impedance detection. In an example aspect, the apparatus includes an array of ultrasonic transducers and an acoustic-impedance detection system. The acoustic-impedance detection system is configured to transmit an ultrasonic detection pulse from an ultrasonic transducer of the array. Based on the ultrasonic detection pulse, the acoustic-impedance detection system can determine an acoustic impedance at the ultrasonic transducer. Based on the acoustic impedance, the acoustic-impedance detection system can transmit an ultrasonic charging signal.

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