WIRELESS CHARGING DEVICE AND A METHOD FOR DETECTING A RECEIVER DEVICE

    公开(公告)号:US20230268775A1

    公开(公告)日:2023-08-24

    申请号:US18307296

    申请日:2023-04-26

    CPC classification number: H02J50/12 G01V3/10 H02J50/90

    Abstract: A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.

    WIRELESS CHARGING DEVICE, A RECEIVER DEVICE, AND AN ASSOCIATED METHOD THEREOF

    公开(公告)号:US20220393519A1

    公开(公告)日:2022-12-08

    申请号:US17820058

    申请日:2022-08-16

    Abstract: A wireless charging device is disclosed. The wireless charging device includes a transmitter detection coil configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device. Also, the wireless charging device includes a control unit coupled to the transmitter detection coil and configured to detect the receiver device based on the characteristic of the first AC voltage signal. Further, the wireless charging device includes a driver unit coupled to the control unit and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device is detected. In addition, the wireless charging device includes a power transmission coil configured to wirelessly transmit the second AC voltage signal to the receiver device.

    Wireless charging device and a method for detecting a receiver device

    公开(公告)号:US11641134B2

    公开(公告)日:2023-05-02

    申请号:US16604481

    申请日:2018-03-19

    Abstract: A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.

    CONTACTLESS POWER TRANSFER SYSTEM AND METHOD FOR CONTROLLING THE SAME

    公开(公告)号:US20220224162A1

    公开(公告)日:2022-07-14

    申请号:US17707819

    申请日:2022-03-29

    Abstract: A contactless power transfer system is provided. The contactless power transfer system includes a first power exchanger coil configured to exchange power. The contactless power transfer system also includes a first power converter operatively coupled to the first power exchanger coil and configured to convert a direct current power to an alternating current power at a system frequency. The contactless power transfer system further includes a controller configured to control an operating state of the first power converter to vary an alternating current power provided to the first power exchanger coil at the system frequency.

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