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    Variable wireless power transmitter including plural resonators and method of controlling the wireless power transmitter
    1.
    发明授权
    Variable wireless power transmitter including plural resonators and method of controlling the wireless power transmitter 有权

    公开(公告)号：US12088110B2

    公开(公告)日：2024-09-10

    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.

    Wireless power reception device including detuning circuit
    5.
    发明授权
    Wireless power reception device including detuning circuit 有权

    公开(公告)号：US12040629B2

    公开(公告)日：2024-07-16

    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

    CPC classification number: H02J50/12 ,  H02J7/00308 ,  H02J7/007182 ,  H02J7/345

    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.

    Electronic device to wirelessly receive power and operating method thereof
    6.
    发明授权
    Electronic device to wirelessly receive power and operating method thereof 有权

    公开(公告)号：US11962175B2

    公开(公告)日：2024-04-16

    申请号：US17085117

    申请日：2020-10-30

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo Gu ,  Kangho Byun ,  Hyunseok Shin ,  Sungku Yeo ,  Youngho Ryu ,  Chongmin Lee

    IPC: H02J7/00 ,  H02J7/02 ,  H02J7/14 ,  H02J50/12 ,  H02J50/80

    CPC classification number: H02J7/00308 ,  H02J7/0047 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80

    Abstract: According to an embodiment, an electronic device may include a battery, a resonance circuit, a rectifier, a DC/DC converter, a charger, a switch, an overvoltage protection circuit configured to perform an overvoltage protection operation or to stop the overvoltage protection operation based on the voltage at the output terminal of the rectifier, a control circuit, and a communication circuit, and the control circuit may be configured to: based on a periodic repetition of a performance of the overvoltage protection operation and a stop of the overvoltage protection while the switch is in an off state, identify a first period during which the overvoltage protection operation is stopped, based on the first period, identify an expected voltage at an output terminal of the rectifier, to be expected, wherein the expected voltage is a voltage if the switch is in an on state, based on the expected voltage, identify whether an occurrence of an overvoltage is expected if the switch is in the on state, and control the communication circuit to transmit a communication signal including information about whether the occurrence of the overvoltage is expected.

    Wireless power transmission device transmitting charging power to wireless power receiving device and method of operating the same
    7.
    发明授权
    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：US11962169B2

    公开(公告)日：2024-04-16

    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 ,  H02J50/12 ,  H04B5/00 ,  H04W4/80

    CPC classification number: H02J50/90 ,  H02J50/12 ,  H04B5/0037 ,  H04W4/80

    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.

    COIL INCLUDING STRUCTURE FOR MINIMIZING INFLUENCE THEREON BY METAL MATERIAL AND RESONANT CIRCUIT INCLUDING SAME
    9.
    发明申请
    COIL INCLUDING STRUCTURE FOR MINIMIZING INFLUENCE THEREON BY METAL MATERIAL AND RESONANT CIRCUIT INCLUDING SAME 有权

    公开(公告)号：US20220255366A1

    公开(公告)日：2022-08-11

    申请号：US17667964

    申请日：2022-02-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jaehyun PARK ,  Beomwoo Gu ,  Jaeseok Park ,  Sungku Yeo ,  Youngho Ryu ,  Bohwan Chol

    IPC: H02J50/70 ,  H01F27/26 ,  H02J50/12 ,  H02J7/02

    Abstract: Disclosed is a coil including a first conductor disposed on a first plane, a second conductor disposed on a second plane different from the first plane, and including a first end electrically connected to a first end of the first conductor, and a second end positioned near a second end of the first conductor, and a third conductor disposed on the first plane, and including a first end electrically connected to the second end of the second conductor, and a second end positioned near the first end of the second conductor, wherein a pattern of the first conductor connecting the first end of the first conductor from the second end of the first conductor is in a clockwise or counterclockwise direction when the first plane is viewed from a first side, and wherein a pattern of the third conductor connecting the second end of the third conductor from the first end of the third conductor is in a direction opposite to the direction of the pattern of the first conductor when the first plane is viewed from the first side.

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