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73 条记录 (耗时 0.012 秒)

    Electronically programmable universal brushless DC fan with integral tracking and locked rotor protection
    2.
    发明授权
    Electronically programmable universal brushless DC fan with integral tracking and locked rotor protection 失效
    电子可编程通用无刷直流风扇，具有整体跟踪和锁定转子保护

    公开(公告)号：US4656553A

    公开(公告)日：1987-04-07

    申请号：US821059

    申请日：1986-01-21

    申请人： Fred A. Brown

    发明人： Fred A. Brown

    IPC分类号： F04D25/06 ,  H02H7/08 ,  H02K7/14 ,  H02P6/08

    CPC分类号： H02P6/08 ,  H02H7/0811

    摘要： A brushless DC fan with a winding supply circuit having an internal voltage regulator can afford current limiting and thermal protection and provide various desired fan speeds without alteration of the basic fan circuit, the windings, or other manufacturing items. A voltage setting circuit element can set fan speed externally and can be used to establish various fan speeds. An internal voltage establishing circuit element sets the maximum speed. The regulator replaces the fan's protective thermistor to shut down the voltage to the windings when locked rotor occurs. Bringing out a lead for the purpose of connecting a speed controlling resistor, thermistor, or active programming means to the internal circuitry enables the fan's end user to alter operation as needed.

    摘要翻译： 具有内部电压调节器的绕组供电电路的无刷直流风扇可以提供限流和热保护，并提供各种所需的风扇速度，而不改变基本风扇电路，绕组或其他制造项目。 电压设定电路元件可以外部设置风扇转速，可用于建立各种风扇转速。 内部电压建立电路元件设定最大速度。 当锁定的转子发生时，调节器取代风扇的保护热敏电阻以关闭绕组的电压。 为了将速度控制电阻，热敏电阻或有源编程装置连接到内部电路，引出了引脚，使风扇的最终用户可以根据需要改变操作。

    D-C motor flashover protection
    3.
    发明授权
    D-C motor flashover protection 失效
    D-C电动机闪络保护

    公开(公告)号：US4112475A

    公开(公告)日：1978-09-05

    申请号：US753406

    申请日：1976-12-22

    申请人： Thomas Detlor Stitt ,  Dennis Francis Williamson

    发明人： Thomas Detlor Stitt ,  Dennis Francis Williamson

    IPC分类号： H02H7/08 ,  H02H7/09

    CPC分类号： H02H7/0811

    摘要： A method and apparatus for detecting and correcting the occurrence of flashover in a direct current electric motor. The polarity and magnitude of voltage on the field winding of the motor is continuously monitored. Detection of a sudden reversal of the polarity of the field voltage accompanied by a rapid increase in magnitude results in the generation of a flashover signal. The flashover signal is coupled to power controlling elements regulating power supplied to the motor and is effective to force removal of power from the motor. In a preferred embodiment the apparatus is disclosed in a two-motor system with two field windings serially connected such that the field voltage monitoring is accomplished on a differential basis.

    摘要翻译： 一种用于检测和校正直流电动机中闪络发生的方法和装置。 电机励磁绕组上的电压极性和幅值被连续监测。 检测伴随着大幅度的快速增加的场电压的极性的突然反转导致产生闪络信号。 闪络信号耦合到调节供应到电动机的电力的功率控制元件，并且有效地强制从电动机去除电力。 在优选实施例中，该装置被公开在具有串联连接的两个场绕组的双电机系统中，使得在差分的基础上实现励磁电压监视。

    Drive failure protection
    8.
    发明授权
    Drive failure protection 有权
    驱动器故障保护

    公开(公告)号：US08643383B2

    公开(公告)日：2014-02-04

    申请号：US13016111

    申请日：2011-01-28

    申请人： Yuan Xiao ,  Lixiang Wei ,  Doyle F. Busse

    发明人： Yuan Xiao ,  Lixiang Wei ,  Doyle F. Busse

    IPC分类号： G01R31/12 ,  H01G2/12 ,  G05B5/00

    CPC分类号： G01R31/2843 ,  G01R31/42 ,  H02H7/0811 ,  H02H7/1203 ,  H02H7/16 ,  H02J3/1821 ,  H02J3/26 ,  H02M1/42 ,  H02M5/458 ,  H02P29/0241 ,  Y02E40/30 ,  Y02E40/50

    摘要： The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.

    摘要翻译： 本技术包括用于检测电驱动系统的电容器组中的故障的方法和系统。 实施例包括使用放电电阻器对电容器组中的电容器进行放电，形成电容器组的中性点。 在不同的电容器配置中，测量中性点，并分析电压以确定电容器组是否发生不平衡。 在一些实施例中，节点是放电电阻器的放电侧和电容器组的中性侧之间或放电电阻器的放电侧和第二组放电的放电侧之间的中性点至中性节点 电阻 在一些实施例中，节点是放电电阻器的放电侧和接地电位之间的中性点对地节点。

    PROTECTIVE CIRCUIT IN A WINDSCREEN WIPER DRIVE AND WINDSCREEN WIPER DRIVE
    9.
    发明申请
    PROTECTIVE CIRCUIT IN A WINDSCREEN WIPER DRIVE AND WINDSCREEN WIPER DRIVE 有权
    WINISCREEN WIPER驱动器和WINISCREEN WIPER驱动器中的保护电路

    公开(公告)号：US20130271881A1

    公开(公告)日：2013-10-17

    申请号：US13976561

    申请日：2011-12-08

    申请人： Marco Rommel ,  Peter Kiersten ,  Armin Schubert

    发明人： Marco Rommel ,  Peter Kiersten ,  Armin Schubert

    IPC分类号： H02H9/04

    CPC分类号： H02H9/04 ,  H02H7/0811

    摘要： The invention relates to a protective circuit (10) in a screen wiper drive (1), consisting of a parallel circuit having two circuit elements (16, 17), wherein one circuit element (16) consists of a capacitor (18) and the other circuit element (17) consists of a series-connection of a diode (19) and a Zener diode (20), wherein the forward direction of the diode (19) and the Zener diode (20) is different and the Zener diode (20) inhibits in the direction of a plus pole.

    摘要翻译： 本发明涉及一种屏幕刮水器驱动器（1）中的保护电路（10），由具有两个电路元件（16,17）的并联电路组成，其中一个电路元件（16）由电容器（18）和 其他电路元件（17）由二极管（19）和齐纳二极管（20）的串联连接组成，其中二极管（19）和齐纳二极管（20）的正向不同，齐纳二极管 20）禁止在正极的方向。

    Control device for an actuator
    10.
    发明授权
    Control device for an actuator 有权
    执行器控制装置

    公开(公告)号：US07944672B1

    公开(公告)日：2011-05-17

    申请号：US12710583

    申请日：2010-02-23

    申请人： Wei-Yun Chiang

    发明人： Wei-Yun Chiang

    IPC分类号： H01H47/00 ,  H01H9/00 ,  H02H51/22 ,  H02H3/00 ,  H02H3/20 ,  H02H3/24

    CPC分类号： H01H47/001 ,  H01H9/182 ,  H02H7/0811 ,  H02H7/09

    摘要： A control device applicable to an actuator and including a voltage detection unit and a limit switch control unit. The control device is inbuilt inside the actuator without any additional control circuit for the control of the limit switches and the detection of the input voltage range. The limit switches are used to limit the travel of an actuating member of the actuator so as to avoid collision of the mechanism. The voltage detection unit serves to detect the input voltage range to control the operation of the actuator. Accordingly, the mechanism or the motor is protected from damage due to excessively low or high input voltage. The limit switches are freely adjustable in position and protected from high current. Therefore, the contacts of the limit switches are not liable to damage and the lifetime of the limit switches is prolonged. The control device further has electronic brake effect.

    摘要翻译： 一种适用于致动器并包括电压检测单元和限位开关控制单元的控制装置。 控制装置内置在执行器内部，无需任何额外的控制电路来控制限位开关和检测输入电压范围。 限位开关用于限制致动器的致动构件的行进，以避免机构的碰撞。 电压检测单元用于检测输入电压范围以控制致动器的操作。 因此，保护​​机构或电动机免受由于过低或过高的输入电压造成的损坏。 限位开关可自由调节位置，避免受高电流的影响。 因此，限位开关的触点不易损坏，限位开关的寿命延长。 控制装置还具有电子制动效果。