OUTPUT DRIVE WITH POWER DOWN PROTECTION
    1.
    发明申请
    OUTPUT DRIVE WITH POWER DOWN PROTECTION 审中-公开
    输出驱动器具有掉电保护功能

    公开(公告)号:WO2017151827A1

    公开(公告)日:2017-09-08

    申请号:PCT/US2017/020294

    申请日:2017-03-01

    Abstract: In described examples, an interface device (300) includes an NPN structure (Ql) along a horizontal surface of a p-doped substrate (204). The NPN structure (300) has a first n-doped region (242) coupled to an output terminal (106), a p-doped region (232, 243, 245) surrounding the first n-doped region (242) and coupled to the output terminal (107), and a second n-doped region (244) separated from the first n-doped region (242) by the p-doped region (243). The interface device (300) also includes a PNP structure (230) along a vertical depth of the p-doped substrate (204). The PNP structure (230) includes the p-doped region (243), an n-doped layer (234) under the p-doped region (243), and the p-doped substrate (204). Advantageously, the interface device (300) can withstand high voltage swing (both positive and negative), prevent sinking and sourcing large load current, and avoid entering into a low resistance mode during power down operations.

    Abstract translation: 在所描述的示例中,界面装置(300)包括沿着p掺杂衬底(204)的水平表面的NPN结构(Q1)。 NPN结构(300)具有耦合到输出端(106)的第一n掺杂区(242),围绕第一n掺杂区(242)的p掺杂区(232,243,245),并耦合到 输出端(107)以及通过p掺杂区(243)与第一n掺杂区(242)隔开的第二n掺杂区(244)。 界面装置(300)还包括沿着p掺杂衬底(204)的垂直深度的PNP结构(230)。 PNP结构(230)包括p掺杂区域(243),p掺杂区域(243)下方的n掺杂层(234)以及p掺杂衬底(204)。 有利的是,接口设备(300)可以承受高电压摆动(正向和负向),防止下沉并获得大的负载电流,并且避免在断电操作期间进入低电阻模式。

    电机保护电路和控制电机保护电路的方法

    公开(公告)号:WO2017114134A1

    公开(公告)日:2017-07-06

    申请号:PCT/CN2016/109138

    申请日:2016-12-09

    Inventor: 刘若鹏 邱胜林

    CPC classification number: H02H7/09

    Abstract: 一种电机保护电路和控制所述电路的方法。该电机保护电路包括:分压电阻(R4、R5)和采样电阻(R1);控制芯片,分压电阻(R4、R5)的一端接入控制芯片,采样电阻(R1)的两端都接入控制芯片,用于在检测到分压电阻(R4、R5)两端的电压值大于预设电压值的情况下,将电源电压稳定为预设电压值,和/或在检测到流经采样电阻(R1)的电流值大于预设电流值的情况下,发出关断信号;场效应晶体管(Q1),栅极接入控制芯片,源极接入采样电阻(R1)一端,用于根据控制芯片产生的关断信号进行关断。所述保护电路及控制方法解决了现有技术中电源保护电路依靠笨重的电感器、电容器、保险丝或瞬态电压抑制器来防止电源电压电流突变损害设备及控制电路的技术问题。

    LOW COST RUGGED PORTABLE DATA STORAGE DEVICE AND DOCKING STATION
    4.
    发明申请
    LOW COST RUGGED PORTABLE DATA STORAGE DEVICE AND DOCKING STATION 审中-公开
    低成本便携式数据存储设备和锁定站

    公开(公告)号:WO2011146117A3

    公开(公告)日:2014-03-27

    申请号:PCT/US2011000877

    申请日:2011-05-18

    Abstract: A low cost, water resistant, rugged and enclosed portable digital data storage device is provided. A two piece enclosure includes a monolithic housing and a cover, both preferably metallic. A passageway is formed in a side wall of the enclosure for plugging an external power and data line into an internal connector which extends into or adjacent the passageway. A liquid water resistant epoxy is applied over the internal connector and adjacent the passageway prior to applying the cover. The result is a low cost, water resistant enclosure with water resistant passageway for power and data lines that remains water resistant whether the external power and data lines are connected to the digital data storage device or not. A fire resistant docking station is also provided, into which the portable data storage device may be easily connected to a primary computer for transferring data.

    Abstract translation: 提供了低成本,防水,坚固和封闭的便携式数字数据存储设备。 两件式外壳包括一个整体式外壳和一个盖,最好是金属的。 在外壳的侧壁上形成通道,用于将外部电力和数据线插入延伸到通道中或邻近通道的内部连接器中。 在施加盖子之前,将液体防水环氧树脂施加在内部连接器上并且邻近通道。 结果是低成本的防水外壳,具有防水通道,用于电源和数据线,无论外部电源和数据线是否连接到数字数据存储设备,仍然防水。 还提供了防火坞站,便携式数据存储设备可以容易地连接到主计算机用于传送数据。

    OVERVOLTAGE ARRESTER FOR AN ELECTRICAL DRIVE
    5.
    发明申请
    OVERVOLTAGE ARRESTER FOR AN ELECTRICAL DRIVE 审中-公开
    电涌保护器FOR A电气传动

    公开(公告)号:WO2013110482A3

    公开(公告)日:2013-12-19

    申请号:PCT/EP2013050072

    申请日:2013-01-03

    Abstract: The invention relates to an overvoltage arrester for an electrical drive, especially a drive for a motor vehicle. The overvoltage arrester is designed to be connected to an on-board power supply system of a motor vehicle. The overvoltage arrester is designed to reduce any overvoltage produced in the on-board power supply system when a load is switched off. According to the invention, the overvoltage arrester is connected to a control unit for an electronically commutated electrical machine. The overvoltage arrester has an input for an on-board power supply system and is designed to detect when a pre-determined voltage value is exceeded and to produce an overvoltage signal depending on whether the voltage value is exceeded. The control unit is designed to transfer the electrical machine from an operating mode in which the machine generates power to an at least partial power-loss mode or to a mode in which it operates as a motor.

    Abstract translation: 本发明涉及一种过电压保护装置的电动驱动装置,特别是用于机动车辆的驱动。 过电压保护装置适于被连接到机动车辆的电气系统。 过电压保护装置被配置成通过关闭一个负载,以减少在电气系统产生的浪涌电压。 根据本发明的过电压保护装置连接到一个控制单元,用于电子整流电机。 过电压保护装置具有用于车辆电气系统电压的输入端和被配置为检测预定电压值的超过,并且响应于电压值的交叉产生冲击信号。 所述控制单元被配置为将所述电机至少部分地转换从发电机运行的电压信号的依赖性在有损模式或以马达模式。

    SOLID STATE OVERLOAD RELAY
    6.
    发明申请
    SOLID STATE OVERLOAD RELAY 审中-公开
    固态过载继电器

    公开(公告)号:WO99003185A1

    公开(公告)日:1999-01-21

    申请号:PCT/US1998/014039

    申请日:1998-07-07

    Abstract: A self-powered multiple phase circuit protection device including a plurality of current transformers connected in parallel with each other and associated with one phase of a multiple phase load for providing signals representative of the current flowing in an associated phase. A switch can be actuated to interrupt power to the multiple phase load, and a fault determining circuit is connected to the circuit transformers and to the switch for actuating the switch during at least one predetermined condition of the current signals. The fault determining circuit has digital pulse extender circuitry for converting the current signals into DC signals, and a digital timer for delaying actuation of the switch.

    Abstract translation: 一种自供电的多相电路保护装置,包括彼此并联连接并与多相负载的一相相关联的多个电流互感器,用于提供表示在相关相中流动的电流的信号。 可以启动开关以中断多相负载的电力,并且故障确定电路连接到电路变压器和开关,用于在电流信号的至少一个预定状态期间致动开关。 故障确定电路具有用于将电流信号转换为直流信号的数字脉冲延长器电路和用于延迟开关的致动的数字定时器。

    电驱动控制系统及方法
    7.
    发明申请

    公开(公告)号:WO2022111565A1

    公开(公告)日:2022-06-02

    申请号:PCT/CN2021/133031

    申请日:2021-11-25

    Abstract: 提供一种电驱动控制系统及方法,系统包括:微控制器模块(100)、监控与逻辑模块(200)和驱动模块(300);微控制器模块(100)包括微控制外设子模块(110);微控制外设子模块(110)设置为接收外部故障信号,并根据外部故障信号将预设目标地址中的直接关断信号搬运至第一输出端;外部故障信号与预设目标地址一一对应设置;监控与逻辑模块(200)设置为接收直接关断信号,并根据直接关断信号控制驱动模块(300)对做出对应的关断动作。

    压缩机变频调速系统及直流母线电压的过压保护方法

    公开(公告)号:WO2021254530A1

    公开(公告)日:2021-12-23

    申请号:PCT/CN2021/107061

    申请日:2021-07-19

    Abstract: 一种压缩机变频调速系统及直流母线电压的过压保护方法,包括:在电机调速的过程中,基于电机转速设定直流母线电压给定值,控制直流母线电压实际值跟踪直流母线电压给定值;设置直流母线电压限压点跟随直流母线电压给定值且大于直流母线电压给定值,设置直流母线电压限压恢复点跟随直流母线电压给定值且小于直流母线电压给定值;当直流母线电压实际值大于等于直流母线电压限压点时,控制功率开关管停止工作,直至小于等于直流母线电压限压恢复点时,控制功率开关管恢复工作,提高了系统效率,降低了直流母线储能电容以及功率开关管故障的风险,减小了轻载时整流模块和逆变模块的损耗,避免功率管误关断的情况发生。

    压缩机保护电路和空调器
    10.
    发明申请

    公开(公告)号:WO2018149031A1

    公开(公告)日:2018-08-23

    申请号:PCT/CN2017/082510

    申请日:2017-04-28

    Inventor: 鲍殿生

    CPC classification number: H02H7/09

    Abstract: 一种压缩机保护电路和空调器,通过在具有电流采样模块(10)、参考电压模块(30)、电压比较模块(20)、整形模块(80)、MCU(50)及智能功率模块(60)上增加反馈模块(40),由于反馈模块(40)连接在电压比较模块(20)的参考电压输入端和输出端,使得电压比较模块(20)的保护和恢复的参考电压值不同。解决了由于电压比较模块(20)的输入端存在与参考电压值接近的波动引起电压比较模块(20)的输出状态不稳定,进而导致智能功率模块(60)的保护状态不稳定引起智能功率模块(60)驱动压缩机不可控,最后导致智能功率模块(60)损坏的问题。

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