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    WIRELESS POWER TRANSMITTING DEVICE INCLUDING IMPEDANCE MATCHING CIRCUIT AND WIRELESS POWER TRANSMISSION METHOD
    1.
    发明申请
    WIRELESS POWER TRANSMITTING DEVICE INCLUDING IMPEDANCE MATCHING CIRCUIT AND WIRELESS POWER TRANSMISSION METHOD 有权

    公开(公告)号：US20230101152A1

    公开(公告)日：2023-03-30

    申请号：US17954825

    申请日：2022-09-28

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo GU ,  Daehyun KIM ,  Jaeseok PARK ,  Jaehyun PARK ,  Sungku YEO ,  Jeongman LEE

    IPC: H02J50/12 ,  H03H7/40

    Abstract: A wireless power transmitting device includes: a transistor configured to output a signal corresponding to a set operating frequency, based on an input signal and a driving voltage; a matching circuit connected with the transistor; a transmission coil connected with the matching circuit; an LC resonance circuit connected in parallel between the transistor and the matching circuit and configured to transfer a signal corresponding to at least one harmonic frequency of the operating frequency; and an impedance sensing circuit connected with the LC resonance circuit and configured to sense a load impedance of the wireless power transmitting device based on the signal corresponding to the at least one harmonic frequency transferred through the LC resonance circuit. The matching circuit is configured to provide impedance matching with the sensed load impedance by adjusting an impedance of the matching circuit or an impedance of the transmission coil.

    ELECTRONIC DEVICE TO PERFORM POWER MANAGEMENT AND OPERATING METHOD THEREOF
    2.
    发明申请
    ELECTRONIC DEVICE TO PERFORM POWER MANAGEMENT AND OPERATING METHOD THEREOF 有权

    公开(公告)号：US20210149428A1

    公开(公告)日：2021-05-20

    申请号：US17022540

    申请日：2020-09-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jaeseok PARK ,  Sungku YEO ,  Youngho RYU ,  Jaesun SHIN ,  Jeongman LEE ,  Chongmin LEE ,  Hyoseok HAN

    IPC: G05F1/625

    Abstract: An electronic device according to an embodiment may include: a plurality of loads, a processor, and a power management circuit configured to provide the plurality of loads with a power, wherein the power management circuit may include a plurality of regulators configured to adjust a voltage of a power received from a power source and output a voltage-adjusted power, a switching circuit configured to connect at least one of the plurality of regulators to at least one of the plurality of loads, a plurality of power sensors each power sensor being configured to measure a magnitude of a power input to each of the plurality of loads, and a controller. The controller may be configured to obtain information related to an operation of each of the plurality of loads from the processor, obtain the magnitude of the power input to each of the plurality of loads from each of the plurality of power sensors, and identify a load which operates abnormally among the plurality of loads based on the magnitude of the power input to each of the plurality of loads and the information related to the operation of each of the plurality of loads.

    ELECTRONIC DEVICE FOR CARRYING OUT OVERVOLTAGE PROTECTION OPERATION AND CONTROL METHOD THEREFOR
    6.
    发明申请
    ELECTRONIC DEVICE FOR CARRYING OUT OVERVOLTAGE PROTECTION OPERATION AND CONTROL METHOD THEREFOR 有权

    公开(公告)号：US20230040473A1

    公开(公告)日：2023-02-09

    申请号：US17970216

    申请日：2022-10-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo GU ,  Jaeseok PARK ,  Jaehyun PARK ,  Jaesun SHIN ,  Jihyun YANG ,  Jeongman LEE ,  Seogyong JEONG ,  Hyoseok HAN

    IPC: H02J7/00 ,  H02J50/12 ,  H02J7/34 ,  H02J50/80

    Abstract: An electronic device may include: a resonance circuit which comprises a battery, a coil and a capacitor, and receives power wirelessly; a rectifier which rectifies AC power, provided from the resonance circuit, to DC power; a DC/DC converter which converts and outputs the DC power provided from the rectifier; a charger which charges the battery by using the converted power provided from the DC/DC converter; a first OVP circuit which selectively connects the coil to the capacitor; a second OVP circuit which is connected in parallel to the first OVP circuit; a detection circuit which detects a rectified voltage; a control circuit; and a communication circuit, wherein the control circuit, on the basis that the detected rectified voltage is equal to or greater than a first threshold voltage, controls the first OVP circuit so as to be in an off state so that the coil is not connected to the capacitor, and on the basis that the detected rectified voltage is less than a second threshold voltage, controls the first OVP circuit so that the first OVP circuit is switched from the off state to an on state so that the coil is connected to the capacitor, wherein the second threshold voltage may be smaller than the first threshold voltage.

    ELECTRONIC DEVICE WIRELESSLY RECEIVING POWER AND METHOD OF OPERATING SAME
    8.
    发明申请
    ELECTRONIC DEVICE WIRELESSLY RECEIVING POWER AND METHOD OF OPERATING SAME 审中-公开

    公开(公告)号：US20200343720A1

    公开(公告)日：2020-10-29

    申请号：US16803336

    申请日：2020-02-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Beomwoo GU ,  Jeongman LEE ,  Seogyong JEONG

    IPC: H02H9/04 ,  H02J50/12 ,  H02J7/02 ,  H02J50/80 ,  H02J7/00

    Abstract: An electronic device includes a reception coil configured to wirelessly receive power based on an externally formed magnetic field, a rectifier configured to rectify power generated from the reception coil, an over-voltage protection circuit connected with the rectifier, and an output capacitor connected with the over-voltage protection circuit, wherein the over-voltage protection circuit includes a negative temperature coefficient thermistor (NTC) selectively connected in parallel with the rectifier and the output capacitor and a switch connecting the NTC to the rectifier and the output capacitor when a voltage at an output terminal of the rectifier exceeds a designated threshold, and disconnecting the NTC from the rectifier and the output capacitor when the voltage at the output terminal of the rectifier is less than or equal to the designated threshold.

    ANNULAR RESONATOR AND WIRELESS POWER TRANSMITTER INCLUDING ANNULAR RESONATOR
    9.
    发明申请
    ANNULAR RESONATOR AND WIRELESS POWER TRANSMITTER INCLUDING ANNULAR RESONATOR 有权

    公开(公告)号：US20230053209A1

    公开(公告)日：2023-02-16

    申请号：US17886029

    申请日：2022-08-11

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jaehyun PARK ,  Beomwoo GU ,  Jaeseok PARK ,  Sungku YEO ,  Youngho RYU ,  Kyungwoo LEE ,  Jeongman LEE

    IPC: H02J50/12 ,  H02J50/00

    Abstract: An annular resonator and a wireless power transmitter are provided. The annular resonator includes upper and lower surfaces, outer and inner surfaces arranged along an annular shape, a plurality of conductors, and a plurality of capacitors connected to the plurality of conductors, respectively. Each conductor includes a first section arranged on the upper surface, a second section extending from the first section and arranged on the outer surface, a third section extending from the second section and arranged on the lower surface, and a fourth section extending from the third section and arranged on the inner surface. A first section of each of a first conductor, a second conductor, a third conductor, and a fourth conductor are sequentially arranged along the upper surface. A second section of each of the second conductor, the third conductor, the fourth conductor, and the first conductor are sequentially arranged along the outer surface.

    WIRELESS POWER TRANSMISSION DEVICE TRANSMITTING CHARGING POWER TO WIRELESS POWER RECEIVING DEVICE AND METHOD OF OPERATING THE SAME
    10.
    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.

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