Slotted communications in virtual AC power signal transfer

    公开(公告)号:US11791663B2

    公开(公告)日:2023-10-17

    申请号:US17172920

    申请日:2021-02-10

    申请人: NuCurrent, Inc.

    IPC分类号: H02J50/40 H02J50/10

    CPC分类号: H02J50/40 H02J50/10

    摘要: A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured to determine a first driving signal for driving the first antenna based on a first operating frequency, a virtual AC power frequency, a slot length, and slot timing, and determine a second driving signal for driving the second t antenna based on a second operating frequency, the slot length, and the slot timing. The first power conditioning system is configured to receive the first driving signal to generate the virtual AC power signals at the first operating frequency, the virtual AC power signals having peak voltages rising and falling based on the virtual AC power frequency. The second power conditioning system is configured to receive the second driving signal to generate the virtual DC power signals at the second operating frequency.

    On-Ear Charging For Wireless Hearables
    26.
    发明公开

    公开(公告)号:US20230276162A1

    公开(公告)日:2023-08-31

    申请号:US17682962

    申请日:2022-02-28

    申请人: NuCurrent, Inc.

    IPC分类号: H04R1/10 H02J50/10 H02J50/00

    摘要: A wireless power transfer system is provided for mobile charging of one or more in-use earphones. The wireless power transfer system includes a wireless power transfer antenna configured for coupling with an antenna of a wireless receiver system within each earphone while the earphone is in the ear of a user. An input power source is linked to the wireless transmission system, and a retention mechanism maintains the wireless transmission system in a coupled relationship with the wireless receiver system of the earphone while the earphone is in the ear of the user.

    Wireless power receiver with in-band virtualized wired communications

    公开(公告)号:US11728684B2

    公开(公告)日:2023-08-15

    申请号:US17582867

    申请日:2022-01-24

    申请人: NuCurrent, Inc.

    IPC分类号: H02J50/20 H02J50/80 H02J50/10

    CPC分类号: H02J50/20 H02J50/10 H02J50/80

    摘要: Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.

    Power Capability Detection With Verification Load In Power Level Control Systems For Wireless Power Transmission

    公开(公告)号:US20230231421A1

    公开(公告)日:2023-07-20

    申请号:US18084321

    申请日:2022-12-19

    申请人: NuCurrent, Inc.

    IPC分类号: H02J50/80 H02J50/70 H02J50/12

    CPC分类号: H02J50/80 H02J50/70 H02J50/12

    摘要: A power transmitter for wireless power transfer includes a verification load, a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the verification load is compliant with the power request, and, if the power signal at the verification load is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.