ELECTRONIC DEVICE POWERED BY WIRELESS CHARGING

    公开(公告)号:US20240186834A1

    公开(公告)日:2024-06-06

    申请号:US18528961

    申请日:2023-12-05

    Inventor: Rene WUTTE

    CPC classification number: H02J50/20 H02J50/80 H04B5/0037

    Abstract: A wireless electronics device includes an energy storage device for storing electrical energy. A frequency detection circuit detects whether a received radio frequency signal is in a first frequency range or in a second frequency range, the first and second frequency ranges being non-overlapping. A first communications circuit transmits a first return signal if the radio frequency signal is in the first frequency range and establishes wireless charging of the energy storage device according to a first protocol. A second communications circuit transmits a second return signal if the radio frequency signal is in the second frequency range and establishes wireless charging of the energy storage device according to a second protocol.

    Dual RF-DC batteryless wireless sensor device

    公开(公告)号:US11962323B2

    公开(公告)日:2024-04-16

    申请号:US18071844

    申请日:2022-11-30

    Inventor: Phuong Huynh

    CPC classification number: H03M1/46 H02J50/001 H02J50/20 H04B5/0037 H04B5/02

    Abstract: A batteryless wireless sensor system includes a data acquisition system, a radio frequency (RF) transceiver, and a batteryless wireless sensor device. The RF transceiver is in communication with the data acquisition system, transmits a RF signal, and receives sensor data and provide the sensor data to the data acquisition system. The batteryless wireless sensor device includes a RF transmitter, an analog to digital converter (ADC), and a sensor. The batteryless wireless sensor harvests energy from the RF signal and generates a DC signal based on the energy harvested from the RF signal, powers up and operates the ADC and the sensor based on the DC signal, and generates sensor data. The batteryless wireless sensor then transmits the sensor data via the RF transmitter to the RF transceiver. In certain examples, the ADC is implemented as a current mode ADC.

    Wireless power transmission device transmitting charging power to wireless power receiving device and method of operating the same

    公开(公告)号:US11962169B2

    公开(公告)日:2024-04-16

    申请号:US17580186

    申请日:2022-01-20

    CPC classification number: H02J50/90 H02J50/12 H04B5/0037 H04W4/80

    Abstract: An electronic device includes a power transmitter; a first communication interface configured to support an Ultra-Wideband (UWB) communication scheme; a second communication interface configured to support a Bluetooth communication scheme; and a processor configured to: control the first communication interface to transmit a first signal and receive a second signal corresponding to the first signal via the first communication interface, identify, based on a difference between a transmission time of the first signal and a reception time of the second signal, first location information of a first external device, control the power transmitter to transmit a first driving power having a first magnitude, based on a first distance between the first external device and the electronic device being within a first range, the first distance being identified based on the first location information, establish a Bluetooth communication connection with the first external device, based on receiving, via the second communication interface, a first packet transmitted from the first external device using the first driving power, after transmitting the first driving power, and control the power transmitter to transmit a first charging power having a second magnitude, after establishing the Bluetooth communication connection.

    APPARATUS AND METHOD FOR TRANSMITTING OR RECEIVING DATA IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20240113746A1

    公开(公告)日:2024-04-04

    申请号:US18530766

    申请日:2023-12-06

    Inventor: Yongcheol PARK

    Abstract: The present application describes a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transmission device, a wireless power generated on the basis of magnetic coupling in a power transmission phase; and a communication and control circuit configured to transmit, to the wireless power transmission device, a configuration packet including first dual data stream information, or to receive, from the wireless power transmission device, a capability packet including second dual data stream information. Upper layer data can be effectively exchanged by clearly recognizing whether the upper layer data is bidirectionally transmitted between the wireless power transmission device and the wireless power reception device, and accuracy of power loss and saving of processing resources can be achieved by synchronizing the timing of calculating the power loss between the wireless power transmission device and the wireless power reception device.

    Method and system for protecting a wireless power transfer system

    公开(公告)号:US11949240B2

    公开(公告)日:2024-04-02

    申请号:US17810935

    申请日:2022-07-06

    CPC classification number: H02J50/10 H01F38/14 H02J50/80 H04B5/0037

    Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to regulate the second DC voltage across the electric load if the second DC voltage across the electric load is greater than a voltage reference value.

    NFC charging
    9.
    发明授权

    公开(公告)号:US11943008B2

    公开(公告)日:2024-03-26

    申请号:US18153958

    申请日:2023-01-12

    Abstract: The present disclosure relates to a method for aligning a smartphone providing NFC wireless power for charging a battery of a device, the method comprising: emitting, with a first NFC antenna of the smartphone, an NFC field for wirelessly charging the battery of the device comprising a second NFC antenna; obtaining, with the smartphone, a measured value of a signal representative of the NFC field strength between the smartphone and the device; determining, by the smartphone, a range of values of a plurality of ranges of values the measured value belongs; and emitting, by the smartphone, at least one notification signal to a user with a frequency determined by the determined range of values.

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