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13 条记录 (耗时 0.027 秒)

    Stepper motor phase failure detection
    7.
    发明授权
    Stepper motor phase failure detection 有权
    步进电机相故障检测

    公开(公告)号：US08952646B2

    公开(公告)日：2015-02-10

    申请号：US13617966

    申请日：2012-09-14

    申请人： John M. O'Neil

    发明人： John M. O'Neil

    IPC分类号： H02P8/00

    CPC分类号： H02P8/36

    摘要： Embodiments are directed to a stepper motor and a controller, where the controller measures a parameter associated with a current of the stepper motor prior to support of commanding a step in connection with the stepper motor. That is, the controller commands the step in connection with the stepper motor, measures a parameter subsequent to commanding the step, compares the measurements of the parameter, and determines whether a fault exists with respect to the stepper motor based on the comparison of the measurements.

    摘要翻译： 实施例涉及步进电动机和控制器，其中控制器在支持与步进电动机相关的步骤的支持之前测量与步进电动机的电流相关的参数。 也就是说，控制器命令与步进电动机相关的步骤，在指令步骤之后测量参数，比较参数的测量值，并且基于测量的比较来确定相对于步进电动机是否存在故障 。

    Motor speed enhancement
    8.
    发明授权
    Motor speed enhancement 有权
    电机速度提升

    公开(公告)号：US09092024B2

    公开(公告)日：2015-07-28

    申请号：US13617794

    申请日：2012-09-14

    申请人： John M. O'Neil

    发明人： John M. O'Neil

    IPC分类号： G05B19/40

    CPC分类号： G05B19/40 ,  H02P8/14

    摘要： Embodiments are directed to commanding, by a controller, a step in connection with a stepper motor. Further, embodiments include discharging a current in a coil of the stepper motor by transferring the current to a capacitor coupled to the coil responsive to the commanded step and driving a current in the coil. The driving of the current in the coil includes using charge stored on the capacitor during the discharging of the current in the coil.

    摘要翻译： 实施例涉及通过控制器命令与步进电机相关的步骤。 此外，实施例包括通过根据指令的步骤将电流转移到耦合到线圈的电容器并驱动线圈中的电流来放电步进电动机的线圈中的电流。 线圈中的电流的驱动包括在线圈中的电流放电期间使用存储在电容器上的电荷。

    Method and apparatus for operating matrix printer
    9.
    发明授权
    Method and apparatus for operating matrix printer 失效
    操作矩阵打印机的方法和装置

    公开(公告)号：US4377972A

    公开(公告)日：1983-03-29

    申请号：US250861

    申请日：1981-04-03

    申请人： John M. O'Neil

    发明人： John M. O'Neil

    IPC分类号： B41J2/35 ,  G06K15/10 ,  B41J3/12

    CPC分类号： G06K15/10 ,  B41J2/35

    摘要： A method and apparatus are described for improving the printing speed of a dot matrix printer. The printer comprises a conventional array of printing elements and a printing element addressing matrix comprising a set of address lines and a set of strobe lines. Each printing element is connected in series between one of the address lines and one of the strobe lines. Each address line is connected to the output of a first register, and each strobe line to the output of a second register. The printer further comprises apparatus for generating a set of signals representative of a dot matrix pattern to be made on said recording medium, said set of signals being organized in successive sequences each of which contains the signals which control the application of a voltage to the address lines connected to the same printing elements as one of the strobe lines; apparatus for applying the signals of each sequence in turn to the inputs to the first registers in one or more parallel operations, and apparatus for reading the signals of each sequence from the first registers in one or more parallel operations while a voltage is applied to one of the strobe lines from the second register.

    摘要翻译： 描述了一种用于提高点阵打印机的打印速度的方法和装置。 打印机包括传统的打印元件阵列和包括一组地址线和一组选通线的打印元件寻址矩阵。 每个打印元件串联连接在一个地址线和一个选通线之间。 每个地址线连接到第一寄存器的输出，并且每个选通线到第二寄存器的输出。 打印机还包括用于产生表示要在所述记录介质上进行的点阵图案的一组信号的装置，所述一组信号以连续的顺序组织，每个信号包含控制对地址施加电压的信号 连接到与选通线之一相同的打印元件的线; 用于在一个或多个并行操作中将每个序列的信号依次应用于第一寄存器的输入的装置，以及用于在施加电压到一个或多个并行操作时从一个或多个并行操作中读取来自第一寄存器的每个序列的信号的装置 的第二个寄存器的选通线。

    Resolver interface
    10.
    发明授权
    Resolver interface 有权
    解析器界面

    公开(公告)号：US09068861B2

    公开(公告)日：2015-06-30

    申请号：US13594408

    申请日：2012-08-24

    申请人： John M. O'Neil

    发明人： John M. O'Neil

    IPC分类号： G01B7/14 ,  G01D5/20 ,  G01D5/22

    CPC分类号： G01D5/2073 ,  G01D5/2291

    摘要： A resolver interface includes an excitation coil, a first secondary coil, a second secondary coil, a sampling circuit, and a controller. The excitation coil receives an excitation signal that generates first and second signals in the first secondary coil and the second secondary coil, respectively. The sampling circuit includes a multiplexer that samples at least one period of the excitation signal, the first signal, and the second signal, individually. The controller is configured to calculate a sign of the first signal and the second signal relative to the excitation signal, wherein based on the calculated sign of the first signal and the second signal the controller determines a quadrant of the excitation coil and based on the determined quadrant and magnitudes of the sampled first signal and second signal calculates a position of the excitation coil.

    摘要翻译： 分解器接口包括激励线圈，第一次级线圈，第二次级线圈，采样电路和控制器。 励磁线圈接收分别在第一次级线圈和第二次级线圈中产生第一和第二信号的激励信号。 采样电路包括多路复用器，分别对激励信号，第一信号和第二信号的至少一个周期进行采样。 控制器被配置为计算相对于激励信号的第一信号和第二信号的符号，其中基于所计算的第一信号和第二信号的符号，控制器确定励磁线圈的象限，并且基于所确定的 采样的第一信号和第二信号的象限和幅度计算激励线圈的位置。