Slotted communications in virtual AC power signal transfer with variable slot width

    公开(公告)号:US12046924B2

    公开(公告)日:2024-07-23

    申请号:US18341513

    申请日:2023-06-26

    CPC classification number: H02J50/60 H02J50/402 H02J50/80

    Abstract: 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 variable slot length, and slot timing, and determine a second driving signal for driving the second 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.

    Systems and methods for determining when to transmit power waves to a wireless power receiver

    公开(公告)号:US10554052B2

    公开(公告)日:2020-02-04

    申请号:US15884303

    申请日:2018-01-30

    Abstract: Wireless power transmitters and methods of management thereof are disclosed herein. An example wireless power transmitter includes an antenna array and a communication radio configured to: establish a communication connection with a respective wireless power receiver; and receive device data from the respective wireless power receiver, the device data used to determine a location of the respective wireless power receiver. The example wireless power transmitter also includes a controller in communication with the antenna array and the communication radio, the controller configured to: determine whether the respective wireless power receiver is authorized to receive power from the wireless power transmitter; if so, determine a particular time at which RF power waves should be transmitted to the respective receiver, the particular time based at least in part on a charging schedule for the transmitter; and instruct the antenna array to transmit radio frequency (RF) power waves at the particular time.

    Wireless power transmitting apparatus

    公开(公告)号:US10546685B2

    公开(公告)日:2020-01-28

    申请号:US16405746

    申请日:2019-05-07

    Abstract: A wireless power transmitting apparatus can include a first transmitting coil; a second transmitting coil; a third transmitting coil on the first transmitting coil and the second transmitting coil; and a substrate to accommodate the first transmitting coil, the second transmitting coil, and the third transmitting coil, in which the substrate includes a wall to surround a part of an outer circumference of the first transmitting coil and a part of an outer circumference of the second transmitting coil; a first protrusion to surround a first part of an outer circumference of the third transmitting coil; and a second protrusion to surround a second part of the outer circumference of the third transmitting coil, in which the first protrusion comprises a first stepped portion to support the third transmitting coil, and the second protrusion comprises a second stepped portion to support the third transmitting coil.

    Energy harvesting and control for sensor node

    公开(公告)号:US10536036B2

    公开(公告)日:2020-01-14

    申请号:US15847867

    申请日:2017-12-19

    Abstract: An integrated circuit, such as included as a portion of a sensor node, can include a regulator circuit having an input coupleable to an energy harvesting transducer. The integrated circuit can include a wireless receiver circuit coupled to the regulator circuit and configured to wirelessly receive at least enough operating energy to establish operation of the sensor node without requiring the energy harvesting transducer. The integrated circuit can include a digital processor circuit coupled to the regulator circuit and a power management processor circuit. The digital processor circuit or one or more other circuits can include a subthreshold operational mode established by the power management processor circuit based on the selected energy consumption level. For example, establishing the subthreshold operational mode can include adjusting or selecting a supply voltage so as to establish subthreshold operation of a field effect transistor (FET) in the digital processor circuit or other circuits.

    Wireless power transmission apparatus

    公开(公告)号:US10483769B1

    公开(公告)日:2019-11-19

    申请号:US16213542

    申请日:2018-12-07

    Abstract: A wireless power transmission apparatus can include a member; an upper transmission coil disposed on the member; and first and second terminals disposed in the member, in which the upper transmission coil includes an outer coil part connected to the first terminal and formed in one-turn; a first inner coil part connected to the outer coil part and having a half-turn on a first region of the member; a second inner coil part connected to the first inner coil part and having a half-turn on a second region of the member; a third inner coil part connected to the second inner coil part and having a half-turn on the first region of the member; and a fourth inner coil part connected to the third inner coil part and the second terminal and having a half-turn on the second region of the member, in which the half-turn of the second inner coil part comprises a first rounded corner, a second rounded corner and a third rounded corner, a circular arc of the first rounded corner of the second inner coil part is R 20 mm as a radius of a circle, a circular arc of the second rounded corner of the second inner coil part is R 18.4 mm as a radius of a circle, and a circular arc of the third rounded corner of the second inner coil part is greater than the circular arc of the first and second rounded corners of the second inner coil part.

    Transferring power to a mobile device

    公开(公告)号:US10454305B2

    公开(公告)日:2019-10-22

    申请号:US15841791

    申请日:2017-12-14

    Abstract: Embodiments of the disclosure may include a system for transferring power, the system having a donor mobile device. Such a donor mobile device may include processor(s) and a donor wireless power transfer mechanism coupled to the processor(s). In addition, the donor mobile device may include software application(s) that: (i) configure the donor wireless transfer mechanism on the donor mobile device to initiate power transfer; and (ii) transfer power using the donor wireless transfer mechanism. The system may also have a receptor mobile device including processor(s) and a receptor wireless power transfer mechanism coupled to the processor(s). Further, the receptor mobile device may include software application(s) that: (i) configure the receptor power transfer mechanism on the receptor mobile device to receive power; and (ii) receive and convert received power into electric current using the receptor power transfer mechanism.

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