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    Electronic device to perform power management and operating method thereof
    11.
    发明授权
    Electronic device to perform power management and operating method thereof 有权

    公开(公告)号：US11347253B2

    公开(公告)日：2022-05-31

    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: H02J3/14 ,  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.

    Wireless power transmitter including miniaturized inverter for reducing harmonics
    12.
    发明授权
    Wireless power transmitter including miniaturized inverter for reducing harmonics 有权

    公开(公告)号：US12074449B2

    公开(公告)日：2024-08-27

    申请号：US17956443

    申请日：2022-09-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo Gu ,  Jaeseok Park ,  Jaehyun Park ,  Youngho Ryu ,  Jungkyu Han

    IPC: H02J50/12 ,  H03H1/00

    CPC classification number: H02J50/12 ,  H03H1/00 ,  H03H2001/0035

    Abstract: An example wireless power transmitter may include a transistor configured to output an amplified signal, a first capacitor coupled to the transistor in parallel, a first LC resonant circuit coupled to the transistor in parallel, a third capacitor having a first end coupled to an output terminal of the transistor and the first LC resonant circuit, a feeding coil coupled to a second end of the third capacitor in series, and having at least a part configured to form a second LC resonant circuit with the third capacitor, and a transmission resonator including a transmission coil and a fourth capacitor coupled to the transmission coil in series. At least a part of the transmission coil may be magnetically coupled with the feeding coil, and at least a part of power received from the feeding coil may be output to an outside through the transmission resonator.

    Wireless power receiving device, wireless power transmitting device, and control method therefor
    14.
    发明授权
    Wireless power receiving device, wireless power transmitting device, and control method therefor 有权

    公开(公告)号：US11894692B2

    公开(公告)日：2024-02-06

    申请号：US17267996

    申请日：2019-08-14

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sangwook Lee ,  Chongmin Lee ,  Daehyun Kim ,  Jaeseok Park ,  Hyoseok Han ,  Seunghyun Lee

    IPC: H02J50/20 ,  H02J50/80 ,  H02J50/90 ,  H02J50/40

    CPC classification number: H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

    Abstract: A wireless power receiving device, according to the disclosure, comprises: at least one power receiving antenna for sequentially receiving a plurality of different RF waves formed by a wireless power transmitting device; a communication circuit; and at least one processor, wherein the at least one processor is configured to confirm a plurality of pieces of strength information that indicates the strength of each of the plurality of different RF waves, confirm a plurality of pieces of phase information corresponding to each of the plurality of different RF waves, confirm, on the basis of the plurality of pieces of strength information and the plurality of pieces of phase information, an optimum phase value such that a received RF wave has a maximum strength, and transmit a communication signal including information about the optimum phase value to the wireless power transmitting device through the communication circuit. Additional various embodiments are possible.

    Electronic device including matching circuit for reducing harmonics
    20.
    发明授权
    Electronic device including matching circuit for reducing harmonics 有权

    公开(公告)号：US12155235B2

    公开(公告)日：2024-11-26

    申请号：US18070854

    申请日：2022-11-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Beomwoo Gu ,  Jaeseok Park ,  Jaehyun Park ,  Sungku Yeo ,  Jungkyu Han

    IPC: H02J50/70 ,  H02J50/12

    Abstract: A wireless power transmitter may include a power amplifier configured to output an amplified signal based on an input signal and a driving voltage, a first LC resonant circuit connected in parallel to the power amplifier, a matching circuit, and a transmission coil connected to the matching circuit. The matching circuit may include a second LC resonant circuit including a first inductor and a first capacitor connected in series to the first inductor, and having one end connected to an output terminal of the power amplifier and one end of the first LC resonant circuit, and a second capacitor and a third capacitor respectively connected to the other end of the second LC resonant circuit. The first inductor may be configured to have an inductance value leading to an impedance of the second LC resonant circuit equal to or greater than a first predetermined magnitude at at least one second or higher harmonic frequency of an operating frequency of the input signal.

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