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    WIRELESS POWER TRANSMISSION DEVICE AND OPERATING METHOD THEREFOR
    1.
    发明公开
    WIRELESS POWER TRANSMISSION DEVICE AND OPERATING METHOD THEREFOR 审中-公开

    公开(公告)号：US20240364147A1

    公开(公告)日：2024-10-31

    申请号：US18765065

    申请日：2024-07-05

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Beomwoo GU ,  Daehyun KIM ,  Jaehyun PARK ,  Kangho BYUN ,  Sungku YEO ,  Youngho RYU

    IPC: H02J50/90 ,  H02J50/12 ,  H02J50/80

    CPC classification number: H02J50/90 ,  H02J50/12 ,  H02J50/80

    Abstract: A wireless power transmission device is provided. The wireless power transmission device includes a transmission coil including a first member, which has one end and the other end forming a first angle with a plane, and a second member, which is arranged on the plane and is connected to each of the one end and the other end of the first member, an impedance sensor for outputting a voltage value corresponding to an impedance change amount of a resonance circuit, which includes the transmission coil, a magnetic body having a side surface that is dented, the dented side surface facing a portion of the transmission coil, a motor for moving the magnetic body, memory storing one or more computer programs, and one or more processors communicatively coupled to the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the wireless power transmission device to receive the output voltage value from the impedance sensor, calculate the difference value between a reference voltage value and the received voltage value, determine control information about the motor on the basis of the calculated difference value, and drive the motor through the determined control information so as to control the distance between the magnetic body and the portion of the transmission coil.

    WIRELESS POWER RECEPTION DEVICE INCLUDING DETUNING CIRCUIT
    2.
    发明申请
    WIRELESS POWER RECEPTION DEVICE INCLUDING DETUNING CIRCUIT 有权

    公开(公告)号：US20220360110A1

    公开(公告)日：2022-11-10

    申请号：US17683614

    申请日：2022-03-01

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo GU ,  Kangho BYUN ,  Sungku YEO ,  Chongmin LEE ,  Bohwan CHOI ,  Hyoseok HAN

    IPC: H02J50/12 ,  H02J7/00 ,  H02J7/34

    Abstract: According to various embodiments, a wireless power reception device for receiving wireless power from a wireless power transmission device may include a first circuit, a first rectifier circuit, a detuning circuit, and a control circuit. The first circuit may include a first coil. The first rectifier circuit may include a first switch and a second switch among a plurality of switches. The detuning circuit may include at least one detuning capacitor and at least one detuning switch. In response to a voltage at an output terminal of the first rectifier circuit exceeding a first voltage, the control circuit may be configured to form a closed loop including the first coil, the first switch, and the second switch by controlling the at least one detuning switch to an on state and controlling the first switch and the second switch to the on state.

    WIRELESS POWER TRANSMISSION DEVICE TRANSMITTING CHARGING POWER TO WIRELESS POWER RECEIVING DEVICE AND METHOD OF OPERATING THE SAME
    4.
    发明申请
    WIRELESS POWER TRANSMISSION DEVICE TRANSMITTING CHARGING POWER TO WIRELESS POWER RECEIVING DEVICE AND METHOD OF OPERATING THE SAME 有权

    公开(公告)号：US20220311285A1

    公开(公告)日：2022-09-29

    申请号：US17580186

    申请日：2022-01-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Chongmin LEE ,  Sungku YEO ,  Kangho BYUN ,  Jaesun SHIN ,  Jeongman LEE ,  Hyoseok HAN

    IPC: H02J50/90 ,  H04W4/80 ,  H04B5/00 ,  H02J50/12

    Abstract: An electronic device includes a power transmitter; a first communication interface configured to support an Ultra-Wideband (UWB) communication scheme; a second communication interface configured to support a Bluetooth communication scheme; and a processor configured to: control the first communication interface to transmit a first signal and receive a second signal corresponding to the first signal via the first communication interface, identify, based on a difference between a transmission time of the first signal and a reception time of the second signal, first location information of a first external device, control the power transmitter to transmit a first driving power having a first magnitude, based on a first distance between the first external device and the electronic device being within a first range, the first distance being identified based on the first location information, establish a Bluetooth communication connection with the first external device, based on receiving, via the second communication interface, a first packet transmitted from the first external device using the first driving power, after transmitting the first driving power, and control the power transmitter to transmit a first charging power having a second magnitude, after establishing the Bluetooth communication connection.

    ELECTRONIC DEVICE STABILIZING OUTPUT CURRENT OF CHARGING CIRCUIT AND CONTROLLING METHOD THEREOF
    5.
    发明申请
    ELECTRONIC DEVICE STABILIZING OUTPUT CURRENT OF CHARGING CIRCUIT AND CONTROLLING METHOD THEREOF 有权

    公开(公告)号：US20220190621A1

    公开(公告)日：2022-06-16

    申请号：US17553233

    申请日：2021-12-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo GU ,  Jaehyun PARK ,  Kangho BYUN ,  Jaesun SHIN ,  Chongmin LEE

    IPC: H02J7/00 ,  H02J50/12 ,  H02J7/02

    Abstract: Provided is an electronic device including: a battery, a resonant circuit including a coil and a capacitor configured to wirelessly receive power, a rectifying circuit configured to rectify an alternating current power provided from the resonant circuit to a direct current power, a DC/DC converter configured to convert the direct current power provided from the rectifying circuit and to output the converted direct current power, a charging circuit configured to charge the battery using the converted direct current power provided form the DC/DC converter, a controller, and a communication circuit, wherein the controller is configured to: control the charging circuit to set a magnitude of a reference current of the charging circuit to a first value, the first value being less than a maximum value of an output current of the charging circuit, control the charging circuit to set the magnitude of the reference current to a second value greater than the first value, measure a magnitude of an output current of the charging circuit after setting the magnitude of the reference current to the second value, control, based on a difference between the measured magnitude and the second value being less than or equal to a specified set value, the charging circuit to set the magnitude of the reference current to a third value greater than the second value, and control, based on the difference between the measured magnitude and the second value exceeding the specified set value, the charging circuit to set the magnitude of the reference current to the first value to receive wireless power.

    ELECTRONIC DEVICE FOR WIRELESSLY TRANSMITTING POWER INCLUDING A PLURALITY OF COILS, AND METHOD OF OPERATING THE SAME
    7.
    发明公开
    ELECTRONIC DEVICE FOR WIRELESSLY TRANSMITTING POWER INCLUDING A PLURALITY OF COILS, AND METHOD OF OPERATING THE SAME 审中-公开

    公开(公告)号：US20240055901A1

    公开(公告)日：2024-02-15

    申请号：US18364403

    申请日：2023-08-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Beomwoo GU ,  Jaehyun PARK ,  Jaeseok PARK ,  Kangho BYUN

    IPC: H02J50/12 ,  H03H7/38 ,  H03H7/01

    CPC classification number: H02J50/12 ,  H03H7/38 ,  H03H7/1741

    Abstract: An electronic device for wirelessly transmitting power may include a first resonator including a first coil, a second resonator including a second coil having a different size from the first coil, an impedance matching circuit including at least one capacitor connected through a switch, and a controller. The controller may be configured to identify which one of a first electronic device not mounted on the electronic device and a second electronic device mounted on the electronic device power is to be transmitted to. The controller may be configured to, when power is to be transmitted to the first electronic device, transmit power through the first resonator by opening the switch. The controller may be configured to, when power is to be transmitted to the second electronic device, transmit power through the second resonator by closing the switch.

    VARIABLE WIRELESS POWER TRANSMITTER INCLUDING PLURAL RESONATORS AND METHOD OF CONTROLLING THE WIRELESS POWER TRANSMITTER
    10.
    发明公开
    VARIABLE WIRELESS POWER TRANSMITTER INCLUDING PLURAL RESONATORS AND METHOD OF CONTROLLING THE WIRELESS POWER TRANSMITTER 审中-公开

    公开(公告)号：US20230155416A1

    公开(公告)日：2023-05-18

    申请号：US17987590

    申请日：2022-11-15

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jaehyun PARK ,  Beomwoo GU ,  Jaeseok PARK ,  Kangho BYUN ,  Jaesun SHIN ,  Sungku YEO ,  Youngho RYU

    IPC: H02J50/00 ,  H02J50/12 ,  H02J50/40 ,  H03H7/38

    CPC classification number: H02J50/005 ,  H02J50/12 ,  H02J50/402 ,  H03H7/38

    Abstract: The disclosure provides a variable wireless power transmitter including a plurality of resonators and a method of controlling the variable wireless power transmitter. A wireless power transmitter of the disclosure may include: a housing; a power amplifier disposed inside the housing; a first resonator including at least one coil and fixed to a first portion of the housing; a second resonator including at least one coil, rotatably disposed at a second portion of the housing, and configured to form a variable angle with the first resonator; a sensor configured to sense a shape change based on rotation of the second resonator; a controller configured to: identify a shape change of the first resonator and the second resonator based on a signal sensed by the sensor, identify whether impedance is matched for the first resonator or the second resonator based on the identification of the shape change, and generate a control signal for impedance matching for the first resonator or the second resonator based on identifying that the impedance is not matched; and a matching circuit including at least one coil and at least one capacitor, electrically coupled between the power amplifier and the first resonator, and configured to perform impedance matching based on the control signal received from the controller.

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