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125 条记录 (耗时 0.026 秒)

    Wireless Power Transmitter For High Fidelity Communications At High Power Transfer
    71.
    发明公开
    Wireless Power Transmitter For High Fidelity Communications At High Power Transfer 审中-公开

    公开(公告)号：US20240348288A1

    公开(公告)日：2024-10-17

    申请号：US18400857

    申请日：2023-12-29

    申请人： NuCurrent, Inc.

    发明人： Alberto Peralta ,  Pavel Shostak

    IPC分类号： H04B5/79 ,  H02J50/12 ,  H02J50/20 ,  H02J50/80 ,  H04L27/02

    CPC分类号： H04B5/79 ,  H02J50/12 ,  H02J50/20 ,  H02J50/80 ,  H04L27/02

    摘要： Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of the wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.

    Electromagnetic systems for reservoir monitoring
    75.
    发明授权
    Electromagnetic systems for reservoir monitoring 有权

    公开(公告)号：US12078056B2

    公开(公告)日：2024-09-03

    申请号：US18077392

    申请日：2022-12-08

    申请人： Halliburton Energy Services, Inc.

    发明人： Ahmed Elsayed Fouda ,  Michael Christie ,  Kenneth Liang ,  Christopher Michael Jones ,  Sriram Srinivasan

    IPC分类号： E21B47/13 ,  E21B17/02 ,  H04B5/79

    CPC分类号： E21B47/13 ,  E21B17/0283 ,  H04B5/79

    摘要： Described herein are systems and techniques for monitoring substances that are injected into an Earth formation whether that be CO2 from a carbon capture and storage (CCS) process, or water or steam injected for an enhanced oil recovery (EOR) process. Components located on an outside of a wellbore casing may be electrically isolated from components located on the inside of the wellbore casing. Data and/or power may be transferred through the wellbore casing wirelessly in order to increase the reliability of a data collection system because the need for wires to be placed on the outside surface of a wellbore casing is eliminated. The components located on the outside of the casing may receive electromagnetic (EM) or transmit EM fields as part of a system that collects data about substances that are injected into Earth formations during a CCS or EOR process.

    Free-boost class-E amplifier
    76.
    发明授权
    Free-boost class-E amplifier 有权

    公开(公告)号：US12068615B2

    公开(公告)日：2024-08-20

    申请号：US17519471

    申请日：2021-11-04

    申请人： AIRA, Inc.

    发明人： Eric Heindel Goodchild

    IPC分类号： H03F3/217 ,  H02J50/12 ,  H04B5/26 ,  H04B5/79

    CPC分类号： H02J50/12 ,  H04B5/26 ,  H04B5/79 ,  H03F3/2171 ,  H03F3/2173

    摘要： Systems, methods and apparatus for wireless charging are disclosed. A charging apparatus has an amplifier stage, a power switching stage and a controller. The amplifier stage has a choke that receives a current from an input of the amplifier stage, a resonant network coupled to an output of the choke and that provides an output current to a load, and a first switch configured to short the output of the choke to circuit ground when turned on. The power switching stage may be configured to couple a power supply to the input of the amplifier stage and may have a second switch operable to couple the input of the amplifier stage to circuit ground when turned on. The controller may be configured to control operation of the first switch and the second switch in accordance with a timing sequence that defines a cycle of the output current.

    WIRELESS POWER-SUPPLY COMMUNICATION SYSTEM
    78.
    发明公开
    WIRELESS POWER-SUPPLY COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20240267086A1

    公开(公告)日：2024-08-08

    申请号：US18424836

    申请日：2024-01-28

    申请人： SMK Corporation

    发明人： Toshio HAIJIMA

    IPC分类号： H04B5/79 ,  H04B5/73 ,  H04B5/77

    CPC分类号： H04B5/79 ,  H04B5/73 ,  H04B5/77

    摘要： The wireless power-supply communication system includes a beacon device having a WPT power receiver and a battery chargeable via the WPT power receiver and configured to output information in every lapse of a preset standby period, and a power-transmission reception apparatus incorporated into or communicably connected to a host terminal and configured to wirelessly transfer power to the device and receive the information transmitted from the device. A wireless communication unit on the power-transmission reception apparatus side has a power-transmission reception side MCU that fluctuates the wireless power transfer to the device side, and a wireless communication unit on the device side has a power-reception transmission side MCU that determines fluctuation in the wireless power transfer and controls the device to perform predetermined operation according to a determination result.

    Near-field communication device
    80.
    发明授权
    Near-field communication device 有权

    公开(公告)号：US12040850B2

    公开(公告)日：2024-07-16

    申请号：US17846852

    申请日：2022-06-22

    申请人： Murata Manufacturing Co., Ltd.

    发明人： Tatsuya Hosotani ,  Takahiro Nagai

    IPC分类号： H04B5/79 ,  H04B5/26 ,  H04B5/72

    CPC分类号： H04B5/79 ,  H04B5/26 ,  H04B5/72

    摘要： A near-field communication device includes a communication antenna for near-field communication formed along a plane, an interface circuit connected to the communication antenna for making a signal of the near-field communication pass through the interface circuit, a wireless communication IC connected to the interface circuit for processing the signal of the near-field communication, a power reception coil arranged along the plane to surround the communication antenna, a resonant capacitor constituting, together with the power reception coil, a power reception resonant circuit, and a rectifying and smoothing circuit connected to the power reception resonant circuit. The power reception resonant circuit resonates at a frequency of the near-field communication, and magnetic flux generated in the vicinity of the power reception coil by a resonant current flowing through the power reception resonant circuit interlinks with the communication antenna.