POWER SUPPLY APPARATUS AND COMMUNICATION APPARATUS

    公开(公告)号:US20190171266A1

    公开(公告)日:2019-06-06

    申请号:US16192118

    申请日:2018-11-15

    申请人: FUJITSU LIMITED

    摘要: A power supply apparatus includes, a power generating circuit that converts energy to power and output a voltage of the power, a first switch installed on either or both of a pair of power lines, a first switch control circuit that controls the first switch based on the level of the voltage, a second switch installed on a branched line coupled to the pair of power lines, a second switch control circuit that controls the second switch based on the level of the voltage, and controls the second switch so that the second switch is repeatedly turned on and off when a power storage circuit is charged with power generated by the power generating circuit, and the power storage circuit installed on the branched line and coupled to the power generating circuit when the first switch and the second switch are set to ON states.

    Solar table
    98.
    发明授权

    公开(公告)号:US10291178B2

    公开(公告)日:2019-05-14

    申请号:US14927473

    申请日:2015-10-30

    发明人: Yuanmin Wang Kai Ji

    摘要: A solar table is disclosed to resolve the singleness of function according to the prior tables. The solar table includes a table frame, a table surface, a solar chip, a storage battery, a control chip and at least one digital module; wherein the table surface is set on the table frame and the solar chip is packaged in the table surface; the solar chip converts solar energy into electricity to charge the storage battery and the storage battery is electrically connected to the control chip; wherein each of the at least one digital module is electrically connected to the storage battery and the control chip.

    Methods and apparatus for enhanced radiation characteristics from antennas and related components

    公开(公告)号:US10283872B2

    公开(公告)日:2019-05-07

    申请号:US16019802

    申请日:2018-06-27

    发明人: Nathan Cohen

    摘要: Aspect of the present disclosure are directed to methods and apparatus producing enhanced radiation characteristics, e.g., wideband behavior, in or for antennas and related components by providing concentric sleeves, with air or dielectric material as a spacer, where the sleeves include one or more conductive layers, at least a portion of which includes fractal resonators closely spaced, in terms of wavelength. A further aspect of the present disclosure is directed to surfaces that include dual-use or multiple-use apertures. Such aperture engine surfaces can include a first layer of antenna arrays, a second layer including a metal-fractal backplane player, and a third layer including solar cells for solar cell or solar oriented power collection. Fractal metamaterial ribbons with multiple closely-packed fractal resonators are also disclosed.