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    ISOLATED SIGNAL TRANSMISSION APPARATUS
    4.
    发明申请
    ISOLATED SIGNAL TRANSMISSION APPARATUS 有权
    隔离信号传输装置

    公开(公告)号：US20150097421A1

    公开(公告)日：2015-04-09

    申请号：US14506788

    申请日：2014-10-06

    申请人： YOKOGAWA ELECTRIC CORPORATION

    发明人： Ken ITO

    IPC分类号： H02J13/00

    CPC分类号： H02J13/0003 ,  G05B19/0423 ,  G05B2219/25132 ,  G05B2219/34423 ,  H04B3/548 ,  H04B2203/5416 ,  H04B2203/547 ,  H04B2203/5483

    摘要： An isolated signal transmission apparatus isolatingly transmits, from a control-side apparatus to a control target apparatus, an electric signal obtained by superimposing a communication signal on a direct-current signal. The apparatus includes a lower limiter circuit configured to output, to the control target apparatus, a direct-current signal, whose value is a predetermined lower limit value, if a value of the direct-current signal from the control-side apparatus is less than the predetermined lower limit value.

    摘要翻译： 隔离信号发送装置从控制侧装置向控制对象装置隔离地发送通过将通信信号叠加在直流信号上而获得的电信号。 该装置包括下限位器电路，其被配置为如果来自控制侧装置的直流信号的值小于，则向控制对象装置输出值为预定下限值的直流信号 预定的下限值。

    Stepper motor system
    6.
    发明授权
    Stepper motor system 失效
    步进电机系统

    公开(公告)号：US5038088A

    公开(公告)日：1991-08-06

    申请号：US546704

    申请日：1990-06-29

    申请人： Gregory E. Arends ,  James R. Polzin

    发明人： Gregory E. Arends ,  James R. Polzin

    IPC分类号： G05B19/23 ,  G05B19/4062 ,  G05B19/416 ,  H02H7/08 ,  H02K11/00 ,  H02P23/00

    CPC分类号： G05B19/23 ,  G05B19/4062 ,  G05B19/4163 ,  H02H7/0822 ,  H02K11/225 ,  H02K11/33 ,  H02P23/22 ,  G05B2219/33268 ,  G05B2219/33342 ,  G05B2219/34012 ,  G05B2219/34215 ,  G05B2219/34242 ,  G05B2219/34423 ,  G05B2219/34427 ,  G05B2219/34448 ,  G05B2219/37136 ,  G05B2219/37183 ,  G05B2219/37285 ,  G05B2219/37431 ,  G05B2219/42279 ,  G05B2219/49063 ,  G05B2219/49295 ,  Y10S388/903 ,  Y10S388/934

    摘要： An electrical stepper motor system is provided in which a microcomputer controlled driver monitors the real time operating parameters of the stepper motor. The driver is controlled by the microcomputer to keep the real time operating parameters of the motor in a range that is governed by limiting parameters. The limiting parameters are determined by the microcomputer on a moment by moment basis in response to changes in certain conditions occurring within the stepper motor, as well as in the outside operating environment. The microcomputer compares the microcomputer determined safe operating parameters with any user stipulated operating parameters, stored in the storage means of the microcomputer, to determine limiting parameters on a moment by moment basis. An encoder senses the position and velocity of the motor and provides appropriate status signals to enable the driver to compensate for position and velocity errors of the stepper motor. An indexer is also provided which provides the driver with pulses that determine the distance, speed and direction of a move. In the illustrative embodiment, the driver, microcomputer, indexer, power supply and encoder circuitry are hybridized on at least one hybrid circuit, each circuit being attached to a heat sinking system, potted in a series of thermally conductive and EMI/RF insulating compounds, and are enclosed in a metallic enclosure that is shielded from outside electrical noise, with the enclosure being directly coupled to the back of the stepper motor to form a compact, unitary device.

    摘要翻译： 提供了一种电动步进电机系统，其中微型计算机控制的驱动器监视步进电机的实时操作参数。 驱动器由微型计算机控制，以将电机的实时操作参数保持在受限参数控制的范围内。 限制参数由微型计算机根据步进电机内部发生的某些情况以及外部操作环境的变化而立刻确定。 微型计算机将微机确定的安全操作参数与存储在微型计算机的存储装置中的任何用户规定的操作参数进行比较，以便逐个确定限制参数。 编码器检测电机的位置和速度，并提供适当的状态信号，使司机可以补偿步进电机的位置和速度误差。 还提供了一个分度器，其为驾驶员提供确定移动的距离，速度和方向的脉冲。 在说明性实施例中，驱动器，微型计算机，分度器，电源和编码器电路在至少一个混合电路上杂交，每个电路连接到散热系统，该散热系统封装在一系列导热和EMI / RF绝缘化合物中， 并且被封闭在屏蔽外部电噪声的金属外壳中，外壳直接连接到步进电机的背面以形成紧凑的整体式装置。