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热词
    • 3. 发明授权
    • Stepping motor control circuit
    • 步进电机控制电路
    • US4580087A
    • 1986-04-01
    • US621475
    • 1984-06-18
    • Evasio BoccaSandro Cerato
    • Evasio BoccaSandro Cerato
    • H02P8/32H02P8/00
    • H02P8/32
    • An electronic circuit for control of a stepping motor (11), and in particular for damping the oscillations of the rotor thereof, comprises a digital-analog circuit (14) which, using a signal proportional to the angular speed of the rotor, which is taken off on one of the windings of the motor (11), provides a signal (SMR) to the control circuit (12) supplying the windings, so as to modulate the current in the other windings during the phase of stopping the motor in the desired position. This phase is selected by a signal (ATT) from a controlling unit (13) and the modulation is of such a sense as substantially to cancel the undesired oscillations. The circuit may be applied for example to motors for positioning typing elements in office printing or typing machines.
    • 一种用于控制步进电机(11)的电子电路,特别是用于阻尼其转子振荡的电子电路包括数模转换电路(14),其使用与转子的角速度成比例的信号 在电动机(11)的一个绕组上取下,向提供绕组的控制电路(12)提供信号(SMR),以便在电动机停止的阶段期间调制其它绕组中的电流 所期望的职位。 该相位由来自控制单元(13)的信号(ATT)选择,并且调制具有基本上消除非期望振荡的感觉。 该电路可以例如应用于用于将打字元件定位在办公室打印机或打字机中的电动机。