WIRELESS POWER TRANSMITTING UNIT, WIRELESS POWER RECEIVING UNIT, AND CONTROL METHODS THEREOF

    公开(公告)号:US20200044490A1

    公开(公告)日:2020-02-06

    申请号:US16596220

    申请日:2019-10-08

    Abstract: A control method of a wireless power receiver is provided, which includes wirelessly receiving a first power from a wireless power transmitter; based on the received first power, loading a first communication stack from a memory stored in a communication module of the wireless power receiver; establishing a communication connection with the wireless power transmitter based on the first communication stack; wirelessly receiving a second power from the wireless power transmitter; based on residual capacity of a battery of the wireless power receiver exceeding a minimum power threshold according to the received second power, determining to re-initialize the communication connection with the wireless power transmitter; transmitting a message including a time period required to complete at least one procedure for re-initializing the communication connection with the wireless power transmitter; and wirelessly receiving the second power from the wireless power transmitter while re-initializing the communication connection with the wireless power transmitter.

    WIRELESS POWER TRANSMITTER AND RECEIVER, AND METHOD FOR TRANSMITTING EMERGENCY INFORMATION IN A WIRELESS CHARGING NETWORK

    公开(公告)号:US20180269930A1

    公开(公告)日:2018-09-20

    申请号:US15984928

    申请日:2018-05-21

    Abstract: Control method of wireless power receiver that includes transmitting advertisement signal to search for wireless power transmitter; receiving, from wireless power transmitter, connection request signal to form connection between wireless power receiver and wireless power transmitter, wherein connection request signal corresponds to advertisement signal; receiving charging power from wireless power transmitter; detecting error state in wireless power receiver while receiving charging power; generating alert signal indicating error state; and transmitting alert signal to wireless power transmitter, wherein error state includes at least one of over-voltage state in which rectifier voltage of wireless power receiver is greater than reference voltage, over-current state in which rectifier current of the wireless power receiver is greater than reference current, over-temperature state in which temperature of wireless power receiver is greater than reference temperature, and system error of wireless power receiver, and wherein a switch to protect wireless power receiver is turned off if the error state is over-voltage state.

    WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND CONTROL METHODS THEREOF

    公开(公告)号:US20200169095A1

    公开(公告)日:2020-05-28

    申请号:US16774901

    申请日:2020-01-28

    Abstract: A method for controlling a wireless power transmitter and a wireless power transmitter are provided. The method includes applying a detection power for detecting a change in a load impedance of the wireless power transmitter; detecting the change in the load impedance of the wireless power transmitter; receiving, from a wireless power receiver, a first signal within a preset time period after detecting the change in the load impedance; determining whether a reception intensity of the first signal is greater than a threshold; and based on determining that the reception intensity of the first signal is less than or equal to the threshold, stopping a communication with the wireless power receiver.

    WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND CONTROL METHODS THEREOF

    公开(公告)号:US20190027941A1

    公开(公告)日:2019-01-24

    申请号:US16129345

    申请日:2018-09-12

    Abstract: A wireless power transmitter configured to transmit power to a wireless power receiver and a method for controlling the wireless power transmitted are provided. The method includes applying a detection power for detecting a change in a load impedance of the wireless power transmitter; detecting the change in the load impedance of the wireless power transmitter; receiving, from a wireless power receiver, a first signal within a preset time after detecting the change, wherein the first signal includes a field for a load impedance detection; determining whether the detected change corresponds to the field of the first signal; determining whether a reception intensity of the first signal is greater than a threshold; and based on a determination that the detected change corresponds to the field of the first signal and the reception intensity of the first signal is greater than the threshold, transmitting, to the wireless power receiver, a second signal to form a communication connection with the wireless power receiver.

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