POWER HARVESTING
    35.
    发明申请
    POWER HARVESTING 审中-公开

    公开(公告)号:US20170288415A1

    公开(公告)日:2017-10-05

    申请号:US15087613

    申请日:2016-03-31

    Abstract: Techniques for harvesting electrical energy from a plurality of harvesters is disclosed. An example energy harvesting system includes a plurality of harvesters and a signal conditioning circuit selectively coupled to an output of each of the plurality of harvesters. The system also includes an energy storage element coupled to the output of the signal conditioning circuit to be charged by the plurality of harvesters through the signal conditioning circuit. The system also includes a controller to discharge a selected harvester to the signal conditioning circuit when an output of the selected harvester triggers a charge collection.

    Digitally controlled zero current switching

    公开(公告)号:US20170187283A1

    公开(公告)日:2017-06-29

    申请号:US14757732

    申请日:2015-12-23

    CPC classification number: H02M3/158 H02M1/083 H02M3/1588 Y02B70/1466

    Abstract: Generally, this disclosure describes an apparatus. The apparatus includes switch controller circuitry and zero crossing logic circuitry. The switch controller circuitry is to control a conduction state of a high side switch and a low side switch in a DC to DC converter. The zero crossing logic circuitry includes phase comparator circuitry, a first clocking circuitry and a second clocking circuitry. Each clocking circuitry includes one or more delay elements. The zero crossing logic circuitry is to monitor a switch node voltage, Vsw, and to determine whether Vsw is greater than a reference, Vref. The switch controller circuitry is to turn off a low side switch if Vsw is greater than Vref while the low side switch is turned on, Vsw greater than Vref corresponding to a negative inductor current.

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