Printer escapement servomotor drive with a minimum power supply
    2.
    发明授权
    Printer escapement servomotor drive with a minimum power supply 失效
    具有最小电源的打印机擒纵机构伺服电机驱动器

    公开(公告)号:US4480938A

    公开(公告)日:1984-11-06

    申请号:US410279

    申请日:1982-08-23

    IPC分类号: B41J19/18 H02P8/12 B41J19/00

    CPC分类号: H02P8/12

    摘要: A servomotor drive system for a printer escapement is provided which minimizes power supply requirements. The drive system has means for accelerating and decelerating the printhead escapement having a fixed current source applied to a servomotor which drives the escapement. In order to minimize power requirements, the system includes means for controlling the current in the motor which comprise means for sensing the actual motor current and feeding back the sensed current to a comparing means. A preselected varying current profile is applied to the comparing means which compares this profile to the actual motor current. Means are then provided responsive to these comparing means for altering the actual motor current to conform with this preselected varying motor current profile.

    摘要翻译: 提供了一种用于打印机擒纵机构的伺服电动机驱动系统,其最小化了电源要求。 驱动系统具有用于加速和减速具有施加到驱动擒纵机构的伺服电动机的固定电流源的打印头擒纵机构。 为了最小化功率要求,该系统包括用于控制电动机中的电流的装置,其包括用于感测实际电动机电流并将感测到的电流反馈到比较装置的装置。 将预先选择的变化的电流曲线应用于比较装置,该比较装置将该轮廓与实际的电动机电流进行比较。 然后响应于这些比较装置提供改变实际电动机电流以符合该预选的变化的电动机电流曲线的装置。