WIRELESS DEVICE AND OPERATING METHOD THEREOF

    公开(公告)号:US20220140649A1

    公开(公告)日:2022-05-05

    申请号:US17396271

    申请日:2021-08-06

    Abstract: Disclosed are a wireless device capable of being self-powered and an operating method thereof. The wireless device includes an energy harvesting module that generates electrical energy based on energy supplied from an outside, a power management module that generates a voltage based on the electrical energy provided from the energy harvesting module, a user input interface that includes at least one input device sensing an input of a user, and a communication module that transfers a command corresponding to the at least one input device to the outside based on the voltage provided from the power management module, in response to that the at least one input device is accessed by the user.

    MULTI-INPUT POWER MANAGER
    14.
    发明申请

    公开(公告)号:US20170141578A1

    公开(公告)日:2017-05-18

    申请号:US15339567

    申请日:2016-10-31

    Inventor: Jong Pil IM

    Abstract: A multi-input power manager includes: first to n-th maximum power point tracking circuits for respectively receiving first to n-th powers from the outside and controlling voltages of first to n-th nodes to be first to n-th reference voltages based on the first to n-th powers; first to n-th input capacitors which respectively store the first to n-th powers by control of the first to n-th maximum power point tracking circuits, and are respectively connected to the first to n-th nodes; first to n-th transfer switches which are respectively connected to the first to n-th nodes, and output powers respectively stored in the first to n-th input capacitors, responding to first to n-th transfer switching signals; and a transfer switch control circuit which compare the first to n-th reference voltages and the voltages of the first to n-th nodes respectively, and generate the first to n-th transfer switching signals accordingly.

    LOW VOLTAGE DRIVING CIRCUIT FOR TRACKING MAXIMUM POWER POINT AND LOW VOLTAGE DRIVING DEVICE INCLUDING THE SAME

    公开(公告)号:US20170134060A1

    公开(公告)日:2017-05-11

    申请号:US15088920

    申请日:2016-04-01

    Inventor: Jong Pil IM

    CPC classification number: H04B1/385 H02M1/088 H02M3/33546 H02M3/33569 H04W4/70

    Abstract: An electronic circuit includes an electricity generating element circuit outputting an input voltage and an input current according to a temperature of an electricity generating element, a current detecting circuit detecting the input current, a power tracking control circuit receiving the detected input current, detecting the input voltage, and outputting a control signal, a switch selecting circuit selectively outputting switch selection signals in response to the control signal, a switch circuit adjusting a resistance value of a resistor according to the switch selection signals that are selectively output from the switch selecting circuit, the resistor being connected to an output terminal of the electricity generating element circuit, and a transformer transforming the input voltage to output an increased voltage, wherein the power tracking control circuit adjusts the control signal such that power according to the input current and the input voltage is maintained in a reference ratio.

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