Abstract: The present invention relates to a wireless charging method and apparatus and system therefor. A wireless power transmission apparatus for wirelessly transmitting power to a wireless power receiving apparatus according to one embodiment of the present invention comprises: a power transmission unit for sending a power signal through a transmission coil; a power conversion unit for converting an intensity of the power applied from the outside and transferring the converted power to the power transmission unit; a communication unit for receiving a packet from the wireless power receiving apparatus; and a control unit for controlling power on the basis of a control error value received through the communication unit, wherein, when an unexpected packet is received in a power transmission stage, the control unit may control power by applying a predetermined offset to the control error value. Thus, the present invention has an advantage of being able to minimize the interruption of wireless charging.

Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.

Abstract: A method for detecting a foreign object in a wireless power transmitter, which wirelessly transmits power to a wireless power receiver through a resonant circuit comprised therein, according to one embodiment of the present invention may comprise the steps of: measuring the strength of power transmitted through the resonant circuit in a power transmission step; receiving, from the wireless power receiver, a feedback packet comprising information on a receive power strength; determining whether the information on the receive power strength is normal; when it is determined that a received power strength corresponding to the information on the receive power strength is abnormal, correcting the received power strength by applying a predetermined offset thereto; calculating a path loss on the basis of the measured strength of the transmitted power and the corrected received power strength; and detecting a foreign object by comparing the calculated path loss with a path loss threshold.

Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.

Abstract: A method for detecting a foreign object in a wireless power transmitter, which wirelessly transmits power to a wireless power receiver through a resonant circuit comprised therein, according to one embodiment of the present invention may comprise the steps of: measuring the strength of power transmitted through the resonant circuit in a power transmission step; receiving, from the wireless power receiver, a feedback packet comprising information on a receive power strength; determining whether the information on the receive power strength is normal; when it is determined that a received power strength corresponding to the information on the receive power strength is abnormal, correcting the received power strength by applying a predetermined offset thereto; calculating a path loss on the basis of the measured strength of the transmitted power and the corrected received power strength; and detecting a foreign object by comparing the calculated path loss with a path loss threshold.

Abstract: Provided is an apparatus for determining an abnormal status of a wireless power transmission coil, the apparatus including an input-current sensor configured to detect an input current and provided at an input side of a power transmission coil, an output-current sensor configured to detect an output current and provided at an output side of the transmission coil, and a controller configured to compare each of the input current and the output current with a predetermined threshold value corresponding thereto to determine whether a disconnection or a short circuit occurs in the transmission coil.

Abstract: Disclosed herein is a transmitting apparatus for both wireless charging and short range communication. According to an embodiment, the transmitting apparatus for both wireless charging and short range communication includes a power transmitter configured to wirelessly transmit power to a power receiver, a communication transmitter configured to wirelessly transmit information to a communication receiver, and a controller configured to control the transmitting apparatus to be selectively switched between a first mode in which the power transmitter is enabled and the communication transmitter is disabled and a second mode in which the communication transmitter is enabled and the power transmitter is disabled. The controller may switch to the first mode when the power receiver is sensed, and may switch to the second mode when the communication receiver is sensed.

Abstract: Provided is an apparatus for determining an abnormal status of a wireless power transmission coil, the apparatus including an input-current sensor configured to detect an input current and provided at an input side of a power transmission coil, an output-current sensor configured to detect an output current and provided at an output side of the transmission coil, and a controller configured to compare each of the input current and the output current with a predetermined threshold value corresponding thereto to determine whether a disconnection or a short circuit occurs in the transmission coil.

Abstract: An apparatus for mounting a portable terminal is provided and may include a plurality of fixators configured to move in diagonal directions of one surface of the portable terminal and fix corners of the portable terminal. A controller is configured to detect the portable terminal and execute the movement of the fixators so that the fixators closely adhere to the corners of the portable terminal.

Abstract: A wireless charging system for a variable charging mode includes: an information receiver configured to receive information about a wireless power receiver including a wireless charging mode that is supported by the wireless power receiver through a wireless communication connected to the wireless power receiver; wireless power transmitting units configured to wirelessly transmit power by a plurality of different wireless charging modes; and a controller configured to control the wireless power transmitting units to wireless transmit power by the wireless charging mode corresponding to the received information.

Abstract: Disclosed herein is a transmitting apparatus for both wireless charging and short range communication. According to an embodiment, the transmitting apparatus for both wireless charging and short range communication includes a power transmitter configured to wirelessly transmit power to a power receiver, a communication transmitter configured to wirelessly transmit information to a communication receiver, and a controller configured to control the transmitting apparatus to be selectively switched between a first mode in which the power transmitter is enabled and the communication transmitter is disabled and a second mode in which the communication transmitter is enabled and the power transmitter is disabled. The controller may switch to the first mode when the power receiver is sensed, and may switch to the second mode when the communication receiver is sensed.

Abstract: The embodiment relates to a case apparatus including a mounting member, which includes a first mounting member and a second mounting member surrounding the first mounting member; a first antenna device mounted on a top surface of the first mounting member; and a second antenna device mounted on a bottom surface of the second mounting member. Thus, even when the case apparatus is mounted on a mobile communication terminal, short range communication may be smoothly performed between the mobile communication terminal and an external device.

Abstract: A wireless charge system includes a wireless charger configured to wirelessly transfer power to an apparatus including a battery in order to charge the battery; a fixing unit configured to fix the apparatus so that the apparatus cannot be moved separately from the wireless charger while wirelessly receiving the power from the wireless charger; and a display configured to provide an indication of a charged state of the battery, wherein the wireless charger, the fixing unit, and the display are formed in a door pocket included in a door of a vehicle.

Abstract: An apparatus for mounting a portable terminal is provided and may include a plurality of fixators configured to move in diagonal directions of one surface of the portable terminal and fix corners of the portable terminal. A controller is configured to detect the portable terminal and execute the movement of the fixators so that the fixators closely adhere to the corners of the portable terminal.

Abstract: A wireless charging system for a variable charging mode includes: an information receiver configured to receive information about a wireless power receiver including a wireless charging mode that is supported by the wireless power receiver through a wireless communication connected to the wireless power receiver; wireless power transmitting units configured to wirelessly transmit power by a plurality of different wireless charging modes; and a controller configured to control the wireless power transmitting units to wireless transmit power by the wireless charging mode corresponding to the received information.

Abstract: A wireless charge system includes a wireless charger configured to wirelessly transfer power to an apparatus including a battery in order to charge the battery; a fixing unit configured to fix the apparatus so that the apparatus cannot be moved separately from the wireless charger while wirelessly receiving the power from the wireless charger; and a display configured to provide an indication of a charged state of the battery, wherein the wireless charger, the fixing unit, and the display are formed in a door pocket included in a door of a vehicle.

Abstract: The embodiment relates to a case apparatus including a mounting member, which includes a first mounting member and a second mounting member surrounding the first mounting member; a first antenna device mounted on a top surface of the first mounting member; and a second antenna device mounted on a bottom surface of the second mounting member. Thus, even when the case apparatus is mounted on a mobile communication terminal, short range communication may be smoothly performed between the mobile communication terminal and an external device.