Systems and methods for regulating a power draw from an induction power harvester (IPH)

    公开(公告)号:US11728678B2

    公开(公告)日:2023-08-15

    申请号:US17419543

    申请日:2019-11-10

    Inventor: Eyal Doron

    CPC classification number: H02J50/001 H02J50/10 H02M1/0025 H02M3/156 H02M7/217

    Abstract: A method for regulating input impedance of a switching regulator, the method comprising: obtaining, at an impedance controller: (a) a measured voltage value that is indicative of an input current of the switching regulator and (b) an input voltage of the switching regulator, wherein a ratio of the input voltage to the input current defines an actual input impedance of the switching regulator; generating a control signal by the impedance controller, in accordance with a difference between the actual input impedance of the switching regulator and a desired input impedance of the switching regulator, wherein the desired input impedance is a predefined impedance; and controlling a feedback node feeding the switching regulator, in accordance with the control signal, to realize an output voltage of the switching regulator for achieving the desired input impedance, wherein the feedback node is external to the switching regulator, thereby regulating the input impedance of the switching regulator externally to the switching regulator.

    GRIPPER TOOL FOR CABLE-PREPARATION SYSTEM

    公开(公告)号:US20230035721A1

    公开(公告)日:2023-02-02

    申请号:US17757913

    申请日:2020-11-30

    Abstract: Techniques, systems and articles are described for preparing electrical cables for connections to a power grid. In one example, a cable-preparation system includes a tool-head mount configured to couple to a cutting-tool head, wherein the cutting-tool head is configured to receive a first portion of an electrical cable and comprises a plurality of rollers and at least one rotatable cutting tool configured to cut at least one layer of the electrical cable; a cable clamp configured to retain a second portion of the electrical cable; and a guide rail extending from the tool-head mount to the cable clamp parallel to a longitudinal axis of the electrical cable, wherein the guide rail guides an axial movement of the cutting-tool head along the electrical cable as the cutting-tool head cuts the one or more layers of the electrical cable.

    Electrical power cable monitoring device using low side electrode and earth ground separation

    公开(公告)号:US11567146B2

    公开(公告)日:2023-01-31

    申请号:US17273922

    申请日:2019-09-05

    Abstract: Techniques, systems and articles are described for monitoring electrical equipment of a power grid and predicting likelihood failure events of such electrical equipment. In one example, a sensing device is configured to couple to an electrical power cable. The sensing device includes a plurality of concentric layers and a monitoring device. The plurality of concentric layers include a first layer, second layer, and third layer. The first layer is configured to concentrically surround a central conductor of the electrical cable and includes an insulating material. The second layer includes a conducting material. The third layer includes a resistive material configured to resist electrical flow between the second layer and a ground conductor exterior to the third layer. The monitoring device includes a sensor and communication unit configured to output data indicative of the sensor data.

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