Apparatus and method for managing power of article transport vehicle in article transport system

    公开(公告)号:US12131931B2

    公开(公告)日:2024-10-29

    申请号:US17385040

    申请日:2021-07-26

    CPC classification number: H01L21/67724 H02J50/005 H02J50/80

    Abstract: An apparatus for managing power of an article transport vehicle in an article transport system according to an embodiment of the present disclosure includes: a power receiving unit configured to receive a power in a contactless manner from a power supply unit installed at a driving route of the article transport vehicle and to control the power; a power storage unit configured to store a portion of the power supplied from the power receiving unit and to supply the stored power; a power generating unit configured to generate a driving power for driving the article transport vehicle and to generate a power by using the power supplied from the power receiving unit or the power storage unit; and a power control unit configured to control power paths between the power storage unit, the power receiving unit, and the power generating unit.

    Antenna based method for harvesting radio frequency energy

    公开(公告)号:US12113453B2

    公开(公告)日:2024-10-08

    申请号:US18616391

    申请日:2024-03-26

    Inventor: Munir A. Al-Absi

    CPC classification number: H02M7/219 H02J50/001 H02J50/20

    Abstract: A circuit and methods describing a complementary metal-oxide semiconductor (CMOS) rectifier for use in radio frequency (RF) energy harvesting with body biasing by the RF input to control the threshold voltage of each transistor. The CMOS rectifier includes an energy harvesting antenna, and multiple rectifier stages. The antenna receives electromagnetic radiation from the environment and generates a DC current. The oscillating input current is an RF+ positive current during a first half cycle and is an RF− negative current during a second half cycle. A first rectifier stage includes a first capacitor connected to the RF+ positive current, a second capacitor connected to the RF− negative current and a cross coupled CMOS circuit connected to the antenna.

    MOBILE DEVICE MOUNTING APPARATUS
    48.
    发明公开

    公开(公告)号:US20240333002A1

    公开(公告)日:2024-10-03

    申请号:US18733026

    申请日:2024-06-04

    CPC classification number: H02J7/0044 H02J50/005 H02J50/90

    Abstract: Disclosed herein is a mount featuring one or more sets of embedded magnets which are designed to engage with complimentary sets of magnets disposed either in a protective case for use with the mount, or in a mobile device contained within such a protective case. The mount includes a pin which is magnetically actuated to extend into a hole disposed in the protective case when the case and the mount are brought within a prescribed distance. Thus, the case and the mount “snap together” and are restrained from sliding relative to one another by the pin.

    Systems and methods for determining a keep-out zone of a wireless power transmitter

    公开(公告)号:US12100971B2

    公开(公告)日:2024-09-24

    申请号:US18489803

    申请日:2023-10-18

    CPC classification number: H02J50/20 H02J50/005 H02J50/90

    Abstract: A method includes selecting a power level from among available power levels at which to amplify a radio frequency (RF) signal using a power amplifier. The method includes providing the amplified RF signal to antennas. The antennas are caused to, upon receiving the amplified RF signal, radiate RF energy within a transmission field. The method includes determining predicted specific absorption rate (SAR) values of the transmission field and determining, based on the predicted SAR values, a keep out zone within the transmission field. The keep out zone is an area at which the predicted SAR values are greater than or equal to a predetermined SAR threshold of the transmission field. The method includes receiving, from sensors, an indication that an object is within the keep out zone. The method includes in response to receiving the indication, causing the antennas to cease radiating the RF energy.

Patent Agency Ranking