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2. 发明公开

EP0833438A1 MOTOR DRIVING DEVICE 失效
标题翻译： ANTRIEBSVORRICHTUNGFÜREINEN MOTOR
公开(公告)号：EP0833438A1
公开(公告)日：1998-04-01
申请号：EP97915716.1
申请日：1997-04-11
申请人： CITIZEN WATCH CO. LTD.
发明人： HIGUCHI, Haruhiko , ICHIKAWA, Masakazu , KIHARA, Hiroyuki , MURAKAMI, Tomomi , TSUCHIYA, Hidetaka
IPC分类号： H02P8/00
CPC分类号： H02P6/20 , H02P8/02 , H02P8/08
摘要： It is an object of this invention to attain reliable starting characteristics and stable rotation performance of a motor in a motor of a phase synchronization driving type.
To achieve this object, according to this invention, there is provided a motor driving apparatus having a stepping motor constituted by a stator with at least two poles, a rotor having a permanent magnet with at least two poles, and a driving coil magnetically coupled to the stator, a driving pulse generation means for outputting a driving pulse signal for driving the stepping motor, a driving circuit for supplying a driving current to the driving coil on the basis of the signal from the driving pulse generation means, a voltage detection circuit for detecting a counter electromotive voltage generated upon rotation of the rotor, and a pole position detection means for detecting the pole position of the rotating rotor with respect to the rotor on the basis of a detection signal generated by the voltage detection circuit, the driving pulse generation means controlling the output timing of the driving pulse signal on the basis of the detection signal from the pole position detection means, characterized in that the pole position detection means stops outputting the driving pulse signal on the basis of the detection signal from the voltage detection circuit which is detected during the output period of the driving pulse signal, and outputs a driving pulse signal having a phase opposite to that of the driving pulse signal.
According to this invention, reliable starting characteristics, rapid acceleration, and stable rotation performance of the motor can be attained. By combining respective embodiments, a higher-performance motor driving circuit can be realized. Further, in this invention, high-speed, large-torque rotation driving of the motor can be realized by a simple system arrangement without changing the structure of a conventional flat bipolar motor.
摘要翻译：本发明的一个目的是获得相位同步驱动型电动机中电机的可靠起动特性和稳定的转动性能。为了实现上述目的，根据本发明，提供一种电动机驱动装置，具有步进电动机，该步进电动机由具有至少两个极的定子构成，转子具有至少两个极的永久磁铁，以及驱动线圈，磁耦合到定子，驱动脉冲产生装置，用于输出用于驱动步进电机的驱动脉冲信号;驱动电路，用于根据来自驱动脉冲产生装置的信号向驱动线圈提供驱动电流;电压检测电路，用于检测在转子旋转时产生的反电动势;以及极位置检测装置，用于根据由电压检测电路产生的检测信号来检测旋转转子相对于转子的极位置，驱动脉冲产生基于来自极位置检测装置的检测信号来控制驱动脉冲信号的输出定时其特征在于，极点位置检测装置根据在驱动脉冲信号的输出周期期间检测到的电压检测电路的检测信号，停止输出驱动脉冲信号，并输出相位相反的驱动脉冲信号到驱动脉冲信号。根据本发明，可以实现马达的可靠的启动特性，快速加速和稳定的旋转性能。通过组合各个实施例，可以实现更高性能的电动机驱动电路。此外，在本发明中，通过简单的系统配置可以实现电动机的高速大扭矩旋转驱动，而不改变传统的扁平双极电动机的结构。

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