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227 条记录 (耗时 0.018 秒)

    Relay circuit for high-voltage operation of a bi-directional DC motor
    71.
    发明授权
    Relay circuit for high-voltage operation of a bi-directional DC motor 失效
    用于双向直流电机高压运行的继电器电路

    公开(公告)号：US6153990A

    公开(公告)日：2000-11-28

    申请号：US807309

    申请日：1997-02-27

    申请人： Paul Gregory Feil ,  Thomas Henry Vaughn

    发明人： Paul Gregory Feil ,  Thomas Henry Vaughn

    IPC分类号： H01H47/18 ,  H01H9/38 ,  H01H9/44 ,  H02H7/08 ,  H02P7/00 ,  H02P7/06 ,  H02P1/40

    CPC分类号： H01H9/38 ,  H02P7/03 ,  H01H9/443 ,  H02H7/0838

    摘要： A relay circuit is provided for operating a bi-directional dc motor including an H-bridge relay circuit having a first and a second relay. The first relay is capable of operatively engaging a first contact at a first time period to provide a first connection of the motor to a power source to operate the motor in a first mode. The second relay is capable of operatively engaging a second contact at a second time period to provide a second connection of the motor to the power source to operate the motor in a second mode. The relay circuit further includes a switch having at least one contact operatively engaging the first or second relay for effectuating the first or second connection, respectively. A third relay is operatively associated with the switch to provide a third connection of the motor to the power source as the at least one contact operatively engages the first or second relay. The third connection is disconnected prior to disconnection of the first or second connection as the at least one contact disengages the first or second relay.

    摘要翻译： 提供一种用于操作包括具有第一和第二继电器的H桥继电器电路的双向直流电动机的继电器电路。 第一继电器能够在第一时间段操作地接合第一触点，以将电动机的第一连接提供给电源，以在第一模式下操作电动机。 第二继电器能够在第二时间段操作地接合第二触点，以提供电动机到电源的第二连接，以在第二模式中操作电动机。 继电器电路还包括具有至少一个触点的开关，该触点可操作地接合第一或第二继电器以分别实现第一或第二连接。 第三继电器与开关可操作地相关联，以便当至少一个触点可操作地接合第一或第二继电器时，将电动机的第三连接提供给电源。 当第一或第二连接断开时，第三连接断开，因为至少一个触点脱离第一或第二继电器。

    Apparatus for triggering a DC motor with a protective circuit preventing substrate currents
    72.
    发明授权
    Apparatus for triggering a DC motor with a protective circuit preventing substrate currents 失效
    用于触发具有防止衬底电流的保护电路的直流电动机的装置

    公开(公告)号：US5903121A

    公开(公告)日：1999-05-11

    申请号：US801638

    申请日：1997-02-18

    申请人： Martin Heine ,  Alfons Fisch ,  Theodor Maier ,  Gerhard Goeser

    发明人： Martin Heine ,  Alfons Fisch ,  Theodor Maier ,  Gerhard Goeser

    IPC分类号： H02H7/08 ,  H02M1/00 ,  H02M1/32 ,  H02P7/03 ,  H02P7/00

    CPC分类号： H02M1/32 ,  H02P7/04 ,  H02H7/0838

    摘要： In a method for triggering a DC motor through an integrated H-bridge circuit by using a control circuit and an apparatus for carrying out the method, a high-side transistor switch or a low-side transistor switch associated with each motor terminal, or both of the transistor switches, are each controlled or regulated to a conductive state by a respective guard circuit, if and as long as a potential at a motor terminal is or falls below a predetermined value. Each guard circuit has a biased transistor with a conductive state in which the associated transistor switches are made conducting through a current mirror.

    摘要翻译： 在通过使用控制电路和执行该方法的装置通过集成H桥电路触发DC电动机的方法中，与每个电动机端子或两者相关联的高侧晶体管开关或低侧晶体管开关 如果和电动机端子处的电位低于或低于预定值，则每个晶体管开关各自被控制或被相应的保护电路调节到导通状态。 每个保护电路具有导通状态的偏置晶体管，其中相关联的晶体管开关通过电流反射镜导通。

    Electric motor control system
    75.
    发明授权
    Electric motor control system 失效
    电动机控制系统

    公开(公告)号：US5369349A

    公开(公告)日：1994-11-29

    申请号：US845229

    申请日：1992-03-03

    申请人： Yoshikazu Tsuchiya ,  Osamu Tsurumiya ,  Makoto Murata ,  Masataka Izawa ,  Yukihiro Fujiwara

    发明人： Yoshikazu Tsuchiya ,  Osamu Tsurumiya ,  Makoto Murata ,  Masataka Izawa ,  Yukihiro Fujiwara

    IPC分类号： H02P29/00 ,  B62D5/04 ,  H02H7/08 ,  H02P7/29 ,  H02P5/28

    CPC分类号： B62D5/046 ,  B62D5/0487 ,  H02H7/0838 ,  Y10S388/903

    摘要： An electric motor control system has a motor driver comprising a bridge of switching elements, a pair of failure detectors, and a microcomputer. The motor driver is connected between a battery and an electric motor that is connected between the switching elements. The switching elements are turned on and off according to drive pulse signals supplied from the microcomputer for supplying a pulsed current to the electric motor. The failure detectors monitor the electric energy supplied to the electric motor to detect a period of time in which the supplied electric energy is free of pulses, and supply a signal indicative of the detected period of time to the microcomputer. Based on the signal from the failure detectors, the microcomputer detects a failure when the detected period of time exceeds a predetermined period of time.

    摘要翻译： 电动机控制系统具有电动机驱动器，其包括开关元件桥，一对故障检测器和微计算机。 马达驱动器连接在连接在开关元件之间的电池和电动马达之间。 开关元件根据从微计算机提供的驱动脉冲信号而导通和截止，以向电动机提供脉冲电流。 故障检测器监视提供给电动机的电能，以检测所提供的电能没有脉冲的时间段，并向微型计算机提供表示检测到的时间段的信号。 基于来自故障检测器的信号，当检测到的时间段超过预定时间时，微计算机检测到故障。

    Motor driver interface fault detection apparatus using initial turn-on and noise timers
    76.
    发明授权
    Motor driver interface fault detection apparatus using initial turn-on and noise timers 失效
    电机驱动器接口故障检测装置采用初始开机和噪声定时器

    公开(公告)号：US5111123A

    公开(公告)日：1992-05-05

    申请号：US615694

    申请日：1990-11-16

    申请人： Larry R. Hach ,  Gerard F. Kelley

    发明人： Larry R. Hach ,  Gerard F. Kelley

    IPC分类号： G01R31/02 ,  G01R31/40 ,  H02H1/04 ,  H02H7/08

    CPC分类号： G01R31/42 ,  G01R31/024 ,  H02H1/04 ,  H02H7/0838

    摘要： A motor driver interface (MDI) circuit includes fault detection apparatus effective to detect short circuits to the power supply in the switching transistors of an H-bridge reversible DC motor arrangement. A pair of timers distinguishes a true fault condition. The first timer is responsive to a continuous fault detection to define a first time period from its initiation; and a second timer is responsive to a continuous presence of a transistor conduction signal to define a second time period from its initiation. The apparatus stores a fault signal in response to the detection of the fault condition at the end of the first or second time periods with the first timer providing fault detection upon turn-on after the brief initial high transistor turn-on current and the second timer providing noise immunity.

    摘要翻译： 电动机驱动器接口（MDI）电路包括有效地检测H桥可逆DC电动机装置的开关晶体管中的电源短路的故障检测装置。 一对定时器区分真实的故障状况。 第一定时器响应于连续故障检测以定义从其启动的第一时间段; 并且第二定时器响应于晶体管导通信号的连续存在以限定从其起始的第二时间段。 该装置响应于在第一或第二时间段结束时检测到故障状况而存储故障信号，其中第一定时器在短暂的初始高晶体管导通电流和第二定时器之后接通时提供故障检测 提供抗噪声。

    H-Switch having short to plus protection
    77.
    发明授权
    H-Switch having short to plus protection 失效
    H型开关具有短到+保护

    公开(公告)号：US4336562A

    公开(公告)日：1982-06-22

    申请号：US237283

    申请日：1981-02-23

    申请人： Thomas W. Kotowski

    发明人： Thomas W. Kotowski

    IPC分类号： H02H7/08 ,  H02H3/20

    CPC分类号： H02H7/0838

    摘要： An H-switch driver circuit includes two pairs of opposed drive transistors each pair being selectively energized to control the polarity of power applied to a load. Each pair of transistors is energized by a power current mirror that includes an NPN transistor that supplies base drive current to the remaining transistors in the power current mirror. The emitter of the NPN transistor is coupled to the load. The NPN transistor is biased off to inhibit base drive current to the circuit transistors in the event of a short to plus fault at one of the load terminals.

    摘要翻译： H开关驱动器电路包括两对相对的驱动晶体管，每对对被选择性地通电以控制施加到负载的功率的极性。 每对晶体管由功率电流镜激励，该功率电流镜包括将功率电流镜中的剩余晶体管提供基极驱动电流的NPN晶体管。 NPN晶体管的发射极耦合到负载。 在负载端子之一处于短路到负极故障的情况下，NPN晶体管被偏置以禁止基极驱动电流到电路晶体管。

    Electronic circuit breaker with gradual and instantaneous cutoff
    78.
    发明授权
    Electronic circuit breaker with gradual and instantaneous cutoff 失效
    具有灰度和瞬时切割功能的电子断路器

    公开(公告)号：US3558978A

    公开(公告)日：1971-01-26

    申请号：US3558978D

    申请日：1969-05-14

    申请人： BORG WARNER

    发明人： NYE DUDLEY D JR ,  PANTELAKIS THOMAS

    IPC分类号： H02H7/085 ,  H02H3/093 ,  H02H7/08 ,  H02P3/08 ,  H02P7/292

    CPC分类号： H02H7/0838 ,  H02H3/093

    摘要： A motor energizing circuit includes a power circuit with semiconductor switches controlled by a firing circuit. A control circuit compares an armature current signal against a reference signal to determine the extent of any overload. An inhibit signal is passed from the control circuit to disable the firing circuit immediately when the armature current signal indicates a substantial motor overload. The control circuit also allows a delay before inhibiting the firing circuit, when the armature current signal indicates an overload in the range below that level which causes instantaneous disabling of the firing circuit.