Rapid discharge circuits suitable for use in a soft-start circuit and related soft-start circuits and methods

    公开(公告)号:US10530171B2

    公开(公告)日:2020-01-07

    申请号:US16281134

    申请日:2019-02-21

    Inventor: ManKun Li

    Abstract: A rapid discharge circuit comprises a detection circuit that is coupled to a power supply and that is configured to detect a voltage of a signal output by the power supply; a control circuit that is configured to generate a start signal in response to the detected voltage decreasing below a specified threshold value; an executing circuit having a first node that is coupled to the power supply and a second node that receives the start signal; a blocking circuit that has a first terminal coupled to a third node of the executing circuit and a second terminal coupled to an external circuit, where the executing circuit and the blocking circuit are configured to switch on in response to the start signal to form a current path for discharging the external circuit.

    RAPID DISCHARGE CIRCUITS SUITABLE FOR USE IN A SOFT-START CIRCUIT AND RELATED SOFT-START CIRCUITS AND METHODS
    3.
    发明申请
    RAPID DISCHARGE CIRCUITS SUITABLE FOR USE IN A SOFT-START CIRCUIT AND RELATED SOFT-START CIRCUITS AND METHODS 审中-公开
    适用于软启动电路和相关软启动电路和方法的快速放电电路

    公开(公告)号:US20160372953A1

    公开(公告)日:2016-12-22

    申请号:US15172354

    申请日:2016-06-03

    Inventor: ManKun Li

    CPC classification number: H02J7/0063 H02J2007/0067 H02M1/36 H02M2001/322

    Abstract: A rapid discharge circuit comprises a detection circuit that is coupled to a power supply and that is configured to detect a voltage of a signal output by the power supply; a control circuit that is configured to generate a start signal in response to the detected voltage decreasing below a specified threshold value; an executing circuit having a first node that is coupled to the power supply and a second node that receives the start signal; a blocking circuit that has a first terminal coupled to a third node of the executing circuit and a second terminal coupled to an external circuit, where the executing circuit and the blocking circuit are configured to switch on in response to the start signal to form a current path for discharging the external circuit.

    Abstract translation: 快速放电电路包括耦合到电源并被配置为检测由电源输出的信号的电压的检测电路; 控制电路,被配置为响应于所检测的电压下降到低于指定的阈值而产生起始信号; 执行电路,其具有耦合到所述电源的第一节点和接收所述起始信号的第二节点; 阻塞电路,其具有耦合到所述执行电路的第三节点的第一端子和耦合到外部电路的第二端子,其中所述执行电路和所述阻塞电路被配置为响应于所述启动信号而导通以形成电流 放电外部电路的路径。

    OVERCURRENT PROTECTION CIRCUIT, CONTROL DEVICE, REMOTE ELECTRICAL TILT SYSTEM AND BASE STATION ANTENNA

    公开(公告)号:US20230336104A1

    公开(公告)日:2023-10-19

    申请号:US18135852

    申请日:2023-04-18

    Inventor: ManKun Li

    CPC classification number: H02P29/027 H01Q3/005 H01Q1/246 H02P27/08 H02K11/33

    Abstract: An overcurrent protection circuit for a motor, where the overcurrent protection circuit includes: a first input configured to receive a first drive signal for the motor; a second input configured to receive an adjustable overcurrent protection threshold; a third input configured to receive a current detection value indicative of an amount of current flowing through the motor; an overcurrent detection module, which is configured to: connect to the second input to obtain a first comparison value related to the overcurrent protection threshold; connect to the third input to obtain a second comparison value related to the detection value; and compare the first comparison value to the second comparison value to generate a comparison output that characterizes the presence or absence of an overcurrent state.

    ACTUATOR ASSEMBLY FOR BASE STATION ANTENNA
    5.
    发明申请

    公开(公告)号:US20200220260A1

    公开(公告)日:2020-07-09

    申请号:US16705752

    申请日:2019-12-06

    Abstract: The present invention relates to an actuator assembly for a base station antenna. The actuator assembly includes a plurality of actuators mounted side by side, a drive shaft, a drive gear configured to be axially movable relative to the drive shaft, and a moving device configured to axially move the drive gear relative to the drive shaft. Each actuator has a driven gear and an actuator element that is in transmission connection with the driven gear. The drive gear is configured for axial movement relative to the drive shaft, so as to engage with or disengage from the driven gear of any one of the actuators and configured to drive the one driven gear in engagement with the drive gear. The actuator assembly has a simple structure, a low height, a favorable PIM performance, and is expandable flexibly.

    CURRENT-SHARING CONTROL CIRCUIT, POWER SUPPLY SYSTEM AND CURRENT-SHARING CONTROL METHOD

    公开(公告)号:US20200343723A1

    公开(公告)日:2020-10-29

    申请号:US16848231

    申请日:2020-04-14

    Inventor: ManKun Li

    Abstract: A current-sharing control circuit, a power supply system and a current-sharing control method are disclosed. One embodiment of the power supply system comprises: multiple CV/CC power supplies connected in parallel to a load, whose nominal output voltages are the same and CV mode to CC mode switching points are adjustable; a current-sharing control circuit including an average load current sensor which senses a total current supplied to the load and outputs a first level linearly related to an average load current equal to the total current divided by the number of the working power supplies, and an output current sensor which senses an output current of each power supply and outputs a second level linearly related to the output current. The control circuit provides feedback signals related to the first level and the respective second levels to the power supplies to adjust their switching points to the average load current.

    Rapid discharge circuits suitable for use in a soft-start circuit and related soft-start circuits and methods

    公开(公告)号:US10263445B2

    公开(公告)日:2019-04-16

    申请号:US15172354

    申请日:2016-06-03

    Inventor: ManKun Li

    Abstract: A rapid discharge circuit comprises a detection circuit that is coupled to a power supply and that is configured to detect a voltage of a signal output by the power supply; a control circuit that is configured to generate a start signal in response to the detected voltage decreasing below a specified threshold value; an executing circuit having a first node that is coupled to the power supply and a second node that receives the start signal; a blocking circuit that has a first terminal coupled to a third node of the executing circuit and a second terminal coupled to an external circuit, where the executing circuit and the blocking circuit are configured to switch on in response to the start signal to form a current path for discharging the external circuit.

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