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    Apparatus and method for a voltage conversion circuit with feedback circuitry
    1.
    发明授权
    Apparatus and method for a voltage conversion circuit with feedback circuitry 有权

    公开(公告)号：US12088185B2

    公开(公告)日：2024-09-10

    申请号：US17366744

    申请日：2021-07-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen Huang ,  Qiang Xie ,  Liang Chen

    IPC: H02M1/00 ,  H02M3/158

    CPC classification number: H02M1/0025 ,  H02M3/158 ,  H02M3/1586 ,  H02M1/0009

    Abstract: In a voltage conversion circuit, a sampling signal and a triangular wave signal are synthesized into a first signal, and the first signal and a second signal are compared to output a pulse-width modulation (PWM) signal. A frequency of the PWM signal may be determined by a frequency of the triangular wave signal. Therefore, the frequency of the PWM signal is fixed using the frequency-fixed triangular wave signal. Turning on or switching off of a power transistor in a voltage conversion subcircuit is controlled according to the PWM signal to convert a received direct current input voltage into a direct current output voltage, thereby implementing a fixed operating frequency for the voltage conversion circuit.

    Voltage Conversion Circuit and Method, and Multiphase Parallel Power System
    2.
    发明申请
    Voltage Conversion Circuit and Method, and Multiphase Parallel Power System 审中-公开

    公开(公告)号：US20190097538A1

    公开(公告)日：2019-03-28

    申请号：US16198408

    申请日：2018-11-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen Huang

    IPC: H02M3/158 ,  H03K5/04 ,  H02M1/08 ,  H03K7/08 ,  H03K4/06 ,  H02M1/00

    Abstract: A voltage conversion circuit and method, and a multiphase parallel power system, where in the voltage conversion circuit, a feedback circuit provides a frequency-controllable feedback ripple signal. Therefore, the voltage conversion circuit has a controllable operating frequency, and a frequency requirement of a load may be met. Compensation does not need to be performed in a hysteresis mode, and therefore the hysteresis mode has a fast-speed response. The operating frequency is fixed. Therefore, the voltage conversion circuit in the embodiments may be applied to the multiphase parallel power system such that the multiphase parallel power system is applicable to an application scenario with a large load current.

    Voltage Conversion Circuit
    4.
    发明申请
    Voltage Conversion Circuit 有权

    公开(公告)号：US20210336524A1

    公开(公告)日：2021-10-28

    申请号：US17366744

    申请日：2021-07-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen Huang ,  Qiang Xie ,  Liang Chen

    IPC: H02M1/00 ,  H02M3/158

    Abstract: In a voltage conversion circuit, a sampling signal and a triangular wave signal are synthesized into a first signal, and the first signal and a second signal are compared to output a pulse-width modulation (PWM) signal. A frequency of the PWM signal may be determined by a frequency of the triangular wave signal. Therefore, the frequency of the PWM signal is fixed using the frequency-fixed triangular wave signal. Turning on or switching off of a power transistor in a voltage conversion subcircuit is controlled according to the PWM signal to convert a received direct current input voltage into a direct current output voltage, thereby implementing a fixed operating frequency for the voltage conversion circuit.

    Dual-polarized radiating element, antenna, base station, and communications system
    5.
    发明授权
    Dual-polarized radiating element, antenna, base station, and communications system 有权

    公开(公告)号：US11043738B2

    公开(公告)日：2021-06-22

    申请号：US16698442

    申请日：2019-11-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yanmin Yu ,  Chen Huang ,  Zihui Liu ,  Ming Yang ,  Jian Song

    IPC: H01Q1/38 ,  H01Q1/48 ,  H01Q19/17 ,  H01Q21/24

    Abstract: This application provides a dual-polarized radiating element, an antenna, a base station, and a communications system. The dual-polarized radiating element includes: an insulated support structure with a solid structure, where the insulated support structure includes a top part, a base, and an intermediate supporting piece that connects the top part and the base; and at least two radiating arm groups conformal to the insulated support structure, and feeding mechanisms corresponding to the radiating arm groups; the feeding mechanism includes a balun and a feeding plate, one end of the balun is electrically connected to a corresponding radiating arm group, and another end of the balun is electrically connected to a ground layer; and the feeding plate is connected to an electric lead on the base of the insulated support structure.

    Voltage conversion circuit and method, and multiphase parallel power system
    7.
    发明授权
    Voltage conversion circuit and method, and multiphase parallel power system 有权

    公开(公告)号：US10164536B2

    公开(公告)日：2018-12-25

    申请号：US15902782

    申请日：2018-02-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen Huang

    IPC: H02M3/158 ,  H03K4/06 ,  H03K5/04 ,  H03K7/08 ,  H02M1/08 ,  H02M1/00

    Abstract: A voltage conversion circuit and method, and a multiphase parallel power system, where in the voltage conversion circuit, a feedback circuit provides a frequency-controllable feedback ripple signal. Therefore, the voltage conversion circuit has a controllable operating frequency, and a frequency requirement of a load may be met. Compensation does not need to be performed in a hysteresis mode, and therefore the hysteresis mode has a fast-speed response. The operating frequency is fixed. Therefore, the voltage conversion circuit in the embodiments may be applied to the multiphase parallel power system such that the multiphase parallel power system is applicable to an application scenario with a large load current.

    ANTENNA AND BASE STATION DEVICE
    8.
    发明公开
    ANTENNA AND BASE STATION DEVICE 审中-公开

    公开(公告)号：US20240275028A1

    公开(公告)日：2024-08-15

    申请号：US18644115

    申请日：2024-04-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chen Huang ,  Dingjiu Daojian ,  Chengdai Xue ,  Chao Ren

    IPC: H01Q1/24 ,  H01P1/00 ,  H01Q19/10 ,  H01Q21/00 ,  H01Q21/06

    CPC classification number: H01Q1/246 ,  H01Q19/104 ,  H01Q21/0006 ,  H01Q21/061 ,  H01P1/00

    Abstract: This disclosure provides an antenna and a base station device. The antenna includes: a plurality of first frequency band antenna groups; a plurality of second frequency band radiating elements; and a reflection plate on which a reflection plate through hole is provided. Each first frequency band radiating element includes: a first balun structure and a first signal transmission structure, which pass through the reflection plate through hole. A phase shifter includes a first phase shifter cavity, a choke cavity, and a first feed network signal transmission structure located in the first phase shifter cavity. A part that is of the first balun structure and that is located on a second side of the reflection plate is located in the choke cavity.

    Data transmission method and related apparatus
    9.
    发明授权
    Data transmission method and related apparatus 有权

    公开(公告)号：US11477078B2

    公开(公告)日：2022-10-18

    申请号：US17215709

    申请日：2021-03-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Wei Wei ,  Chen Huang

    IPC: H04L67/101 ,  H04L41/0816 ,  H04L41/0826 ,  H04L67/1031 ,  H04L67/1097

    Abstract: A data transmission method includes receiving a service request sent by a terminal device. The method also includes determining, based on the service request, a target transmission path of service data corresponding to the service request and a change policy corresponding to the target transmission path. The method further includes changing, according to the change policy, a current content delivery network (CDN) to a target CDN. The target CDN includes a plurality of serving nodes corresponding to the target transmission path. The method additionally includes sending an indication message to a first serving node in the target CDN to indicate the first serving node to send the service data to the terminal device through the target transmission path; or sending an indication message to a second serving node in the target CDN to indicate the second serving node to send the service data to the terminal device.

    Dual-Polarized Radiating Element, Antenna, Base Station, and Communications System
    10.
    发明申请
    Dual-Polarized Radiating Element, Antenna, Base Station, and Communications System 审中-公开

    公开(公告)号：US20200099128A1

    公开(公告)日：2020-03-26

    申请号：US16698442

    申请日：2019-11-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yanmin Yu ,  Chen Huang ,  Zihui Liu ,  Ming Yang ,  Jian Song

    IPC: H01Q1/38 ,  H01Q21/24 ,  H01Q19/17 ,  H01Q1/48

    Abstract: This application provides a dual-polarized radiating element, an antenna, a base station, and a communications system. The dual-polarized radiating element includes: an insulated support structure with a solid structure, where the insulated support structure includes a top part, a base, and an intermediate supporting piece that connects the top part and the base; and at least two radiating arm groups conformal to the insulated support structure, and feeding mechanisms corresponding to the radiating arm groups; the feeding mechanism includes a balun and a feeding plate, one end of the balun is electrically connected to a corresponding radiating arm group, and another end of the balun is electrically connected to a ground layer; and the feeding plate is connected to an electric lead on the base of the insulated support structure.

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