METHOD AND CIRCUITRY FOR CONTROLLING A TRANSMITTER AND A RECEIVER OF A WIRELESS POWER TRANSFER SYSTEM

    公开(公告)号:US20240186832A1

    公开(公告)日:2024-06-06

    申请号:US18525986

    申请日:2023-12-01

    申请人: Solace Power Inc.

    IPC分类号: H02J50/12

    CPC分类号: H02J50/12

    摘要: Method and circuitry for controlling a transmitter and a receiver of a wireless power transfer system. There is provided transmitter control circuitry for controlling a duty cycle of an inverter of a transmitter of a wireless power transfer system based on detection of a load signal at the transmitter. There is further provided receiver control circuitry for controlling operation of a receiver of a wireless power transfer system, the circuitry modifying of the load at the input or output of a rectifier of a receiver of a wireless power transfer system to vary a load signal at the receiver. The transmitter control circuitry may control the duty cycle of the inverter based on detection of the load signal from the receiver.

    Synchronous rectifier for use in a wireless power transfer system and method for synchronous rectification in wireless power transfer

    公开(公告)号:US11637453B2

    公开(公告)日:2023-04-25

    申请号:US17472002

    申请日:2021-09-10

    申请人: Solace Power Inc.

    IPC分类号: H02J50/12 H02M7/217

    摘要: A rectifier for use in a receiver of a wireless power transfer system for receiving wireless power transferred for a transmitter of the wireless power transfer system. The rectifier comprises a field effect transistor (FET) comprising: a source terminal electrically connected to ground; a drain terminal electrically connected to a receive element of the receiver. The receive element is for extracting power from the transmitter of the wireless power transfer system. The FET further comprises a gate terminal electrically connected to the receive element. The gate terminal is driven by a gate signal in phase with an input signal received at the receive element.

    DIFFERENTIAL RECTIFIER FOR USE IN A WIRELESS POWER RECEIVER, AND METHOD OF RECTIFYING A POWER SIGNAL

    公开(公告)号:US20230198310A1

    公开(公告)日:2023-06-22

    申请号:US18145283

    申请日:2022-12-22

    申请人: Solace Power Inc.

    IPC分类号: H02J50/12 H02J50/80

    摘要: A differential rectifier for use in a receiver for receiving wireless power via inductive coupling comprises first and second capacitors; first and second switching elements; and first and second inductors. The first capacitor and first inductor are electrically connected in series, and the second capacitor and second inductor are electrically connected in series. The first switching element is electrically connected between the first capacitor and first inductor in parallel, and the second switching element is electrically connected between the second capacitor and second inductor in parallel. The first capacitor electrically is connected to a terminal of a coil for receiving power wirelessly via inductive coupling, and the second capacitor is electrically connected to another terminal of a coil for receiving power wirelessly via inductive coupling. The first and second switching elements are electrically connected to a tap of a coil for receiving power wirelessly via inductive coupling.

    BIDIRECTIONAL POWER TRANSFER SYSTEM, METHOD OF OPERATING THE SAME, AND WIRELESS POWER SYSTEM

    公开(公告)号:US20220416582A1

    公开(公告)日:2022-12-29

    申请号:US17899711

    申请日:2022-08-31

    申请人: Solace Power Inc.

    发明人: Amir TAHAVORGAR

    摘要: A bidirectional wireless power transfer system for transferring power comprises a power stage electrically connected to a transceiver element for an electric field and/or a magnetic field, and for extracting power from a generated electric field and/or a generated magnetic field. The power stage is for inverting an inputted power signal and for rectifying a received power signal. The system further comprises a trigger circuit for synchronizing wireless power transfer; and a clock generator for generating a clock signal. The system further comprises a switching element electrically connected to the power stage, and selectively electrically connected to the trigger circuit and the clock generator, such that: when the switching element electrically connects the clock generator to the power stage, the transceiver element is configured to transfer power by generating an electric field and/or a magnetic field, and when the switching element electrically connects the trigger circuit to the power stage, the transceiver element is configured to extract power from a generated electric field and/or a generated magnetic field.

    WIRELESS POWER TRANSFER SYSTEM AND METHOD THEREOF

    公开(公告)号:US20220060053A1

    公开(公告)日:2022-02-24

    申请号:US17467586

    申请日:2021-09-07

    申请人: Solace Power Inc.

    摘要: A wireless power transfer system is provided. The wireless power transfer system comprises a resonator comprising a capacitor. The capacitor comprises at least two active electrodes; and a passive electrode adjacent the active electrodes and configured to encompass the active electrodes to at least partially eliminate environmental influences affecting the active electrodes and to increase the overall capacitance of the system. The resonator further comprises at least one inductive coil electrically connected to the active electrodes, wherein the resonator is configured to extract power from a generated electric field via resonant electric field coupling.

    WIRELESS ELECTRIC FIELD POWER TRANSFER SYSTEM AND TRANSMITTER, AND METHOD OF WIRELESSLY TRANSFERRING POWER

    公开(公告)号:US20210399586A1

    公开(公告)日:2021-12-23

    申请号:US17462503

    申请日:2021-08-31

    申请人: Solace Power Inc.

    IPC分类号: H02J50/12 H02J50/05

    摘要: A transmit resonator is provided. The transmit resonator comprises: two inductors; a switching network electrically connected to the inductors; a plurality of capacitive electrodes electrically connected to the switching network; a detector communicatively connected to the capacitive electrodes; and a controller communicatively connected to the switching network and the detector. The detector is configured to detect impedance. The controller is configured to control the switching network to control which electrodes are connected to the inductors based on the detected impedance. The inductors and electrodes are configured to resonate to generate an electric field.

    Wireless electric field power transfer system and transmitter, and method of wirelessly transferring power

    公开(公告)号:US11133713B2

    公开(公告)日:2021-09-28

    申请号:US16722616

    申请日:2019-12-20

    申请人: Solace Power Inc.

    IPC分类号: H02J50/05 H02J50/12

    摘要: A transmit resonator is provided. The transmit resonator comprises: two inductors; a switching network electrically connected to the inductors; a plurality of capacitive electrodes electrically connected to the switching network; a detector communicatively connected to the capacitive electrodes; and a controller communicatively connected to the switching network and the detector. The detector is configured to detect impedance. The controller is configured to control the switching network to control which electrodes are connected to the inductors based on the detected impedance. The inductors and electrodes are configured to resonate to generate an electric field.