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    • 5. 发明专利
    • Rotating speed controller for motor
    • 旋转速度控制器
    • JPS58204789A
    • 1983-11-29
    • JP8717382
    • 1982-05-21
    • Morita Mfg Co Ltd
    • HOTSUTA TOSHIHIRO
    • H02P7/29H02P25/10
    • H02P25/102
    • PURPOSE: To maintain the rotating speed of a motor constant by repeatedly stopping the supply of a drive voltage via a switching circuit in a short time, detecting the counterelectromotive force during the stoppage and feeding it back, thereby purely detecting only the counterelectromotive force.
      CONSTITUTION: The output of a switching circuit which includes a pulse generator 41 is applied to a drive circuit 2, the supply of the drive voltage is repeatedly stopped in a short time, thereby driving a motor 1. The counterelectromotive force of the motor 1 is detected by a detector 5 during the stopping period of supplying the drive voltage, and fed back through a sample-holding circuit 52. The feedback signal is compared by the set value, thereby controlling the motor 1. Accordingly, since the counterelectromotive force when the motor current is not flowed is utilized, the influence of the resistance component is not presented, but only the counterelectromotive voltage can be purely detected, and the rotating speed can be stably controlled without error.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:通过在短时间内通过开关电路反复停止提供驱动电压来维持电机的转速恒定,检测停电期间的反电动势并将其反馈,从而纯粹仅检测反电动势。 构成:包括脉冲发生器41的开关电路的输出被施加到驱动电路2,驱动电压的供给在短时间内反复停止,从而驱动电动机1.电动机1的反电动势为 在提供驱动电压的停止期间由检测器5检测,并通过采样保持电路52反馈。将反馈信号与设定值进行比较,由此控制电动机1.因此,由于当反相电动势 不利用电动机电流,不显示电阻分量的影响,只能纯粹检测出反电动势电压,可以无误地稳定地控制转速。
    • 7. 发明授权
    • Speed control for brushless repulsion motor
    • 无刷斥力电机的速度控制
    • US6049187A
    • 2000-04-11
    • US223981
    • 1999-01-04
    • Lambert Haner
    • Lambert Haner
    • H02K29/10H02K37/00H02P1/24H02P6/00H02P25/10H02P6/08
    • H02K29/10H02K37/00H02P1/24H02P25/102H02P6/00
    • An armature mounted armature speed control system for a brushless repulsion motor of the type including a series of coil switches on the armature for shorting a succession of armature coils and detectors on the armature for operating each of the switches when the armature coil shorted by a switch is at a selected rotational position, the system comprising: a ring counter with sequentially energized output lines for receiving signals in sequence at a rate controlled by the reference frequency of count pules at the input of the counter, means for operating the switches in sequence by the counter created signals to control the speed of the armature at a set point and a selector switch shiftable upon receipt of a shift signal between a first condition with the signals from said counter operating the coil switches and a second condition with the detectors operating the coil switches.
    • 一种用于无刷斥力电动机的电枢安装的电枢速度控制系统,其包括在电枢上的一系列线圈开关,用于在电枢线圈短路时使电枢线圈和电枢上的检测器短路,用于操作每个开关 该系统包括:环形计数器,其具有顺序激励的输出线,用于以计数器的输入端处的计数器的参考频率控制的速率依次接收信号;用于按顺序操作开关的装置, 计数器产生信号以控制在设定点处的电枢的速度,并且选择开关可在接收到来自所述操作线圈开关的所述计数器的信号的第一状态与第二状态之间接收到移位信号时移动,并且检测器操作线圈 开关。