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    • 5. 发明专利
    • Motor control method and a motor control device
    • 电机控制器和电机控制方法
    • JP2008211930A
    • 2008-09-11
    • JP2007047353
    • 2007-02-27
    • Brother Ind Ltdブラザー工業株式会社
    • NOZAKI MITSUHIRO
    • H02P29/00
    • G05B11/28H02P29/10
    • PROBLEM TO BE SOLVED: To enable a motor to return to a target speed immediately even if the motor is caused to decelerate suddenly by motor load fluctuation and the like and consequently no pulse signal is outputted from an encoder continues for a long period of time, when the feedback control over the motor is carried out based on the pulse signal from the encoder. SOLUTION: Measurement results (edge period) by a period counter 61 are stored in a memory 62 every time a period pulse is inputted. On the other hand, every time an operation sampling pulse is inputted, a switch 65 outputs either one of an edge period α stored in the memory 62 and the measured value β of the period counter 61 as a detection period for operation, based on comparison result of a comparator 64. Namely, when the operation sampling pulse is inputted, the edge period α in the memory 62 is outputted as the detection period for operation if the measured value β of the period counter 61 at that time, is equal to or lower than a target period, while the measured value β is outputted if the measured value β of the period counter 61 exceeds the target period. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使通过电动机负载波动等使电动机突然减速,电动机也能立即返回到目标转速,因此从编码器输出的脉冲信号长时间不会持续 的时间,当基于来自编码器的脉冲信号执行对电动机的反馈控制时。

      解决方案:每当输入周期脉冲时,周期计数器61的测量结果(边沿周期)被存储在存储器62中。 另一方面,每当输入操作采样脉冲时,开关65基于比较,输出存储在存储器62中的边​​沿周期α和周期计数器61的测量值β中的一个作为操作的检测周期 也就是说,当输入操作采样脉冲时,如果时间计数器61的测量值β等于或等于或者等于或等于或者等于或等于 如果周期计数器61的测量值β超过目标周期,则输出测量值β。 版权所有(C)2008,JPO&INPIT

    • 6. 发明专利
    • Phase control circuit for dc motor
    • 直流电机相控电路
    • JPS5953089A
    • 1984-03-27
    • JP14156083
    • 1983-08-02
    • Matsushita Electric Ind Co Ltd
    • ZAIZEN KATSUNORINAKAMURA MASAKITERAI HARUOIGUCHI JIYUN
    • H02P7/292H02P29/00
    • H02P29/10
    • PURPOSE:To obtain high reliability with a simple circuit configuration by connecting a series circuit of a constant-voltage element and a light emitting diode in parallel with a series motor, and connecting a phototransistor which is optically coupled to the diode in parallel with the condenser of a firing circuit. CONSTITUTION:When an AC power source 1 is connected, a condenser 6B is charged through a resistor 6A, and when the charged voltage reaches the switching voltage of a trigger element 7, the element 7 becomes ON, and a thyristor 5 becomes ON. When the counterelectromotive force of a motor 4 becomes the breakdown voltage or higher of a constant-voltage element 8A, a current starts flowing a series circuit 8, a diode 8B is fired, and a phototransistor 9A which is optically coupled to the diode becomes ON. Then, the part of the charging current of the condenser 6B is bypassed to a series circuit 9, the charge of the condenser 6B is delayed to delay the phase that the thyristor 5 becomes ON.
    • 目的:通过将恒压元件和发光二极管的串联电路与串联电机并联连接,通过简单的电路配置获得高可靠性,并将与二极管光耦合的光电晶体管与电容器并联连接 的点火电路。 构成:连接交流电源1时,电容器6B通过电阻器6A充电,当充电电压达到触发元件7的切换电压时,元件7变为导通,晶闸管5变为导通。 当电动机4的反电动势变为恒压元件8A的击穿电压以上时,电流开始流过串联电路8,二极管8B点亮,与二极管光耦合的光电晶体管9A变为导通 。 然后,将冷凝器6B的充电电流的一部分旁路到串联电路9,延迟电容器6B的充电以延迟晶闸管5导通的相位。
    • 7. 发明专利
    • Speed controller for drive device
    • 用于驱动装置的速度控制器
    • JPS5944983A
    • 1984-03-13
    • JP15496182
    • 1982-09-06
    • Nippon Steel Corp
    • WATANABE SHIGEO
    • H02P29/00
    • H02P29/10
    • PURPOSE:To prevent a drive device from damaging due to the overrun of a speed by judging as a malfunction when the difference between a signal obtained by multiplying a speed command signal by a function which is simulated to a transfer function of a speed control system and a feedback signal becomes the prescribed value or higher. CONSTITUTION:A speed controller 2 applies a deviation 5 between a speed command value 1 and a feedback signal 4 to a drive device 3. On the other hand, a comparator 7 compares a signal obtained by multiplying the value 1 by the function of a function generator 8 which simulates the transfer function of a speed control system, with the signal 4, outputs a signal to an alarm unit 6 when the difference becomes the prescribed value or higher, and outputs a signal to a discriminator 9, thereby limiting the voltage of a motor. In this manner, it can prevent the drive device from overrunning at the speed due to the damage or the like.
    • 目的:通过将速度指令信号乘以模拟的功能与速度控制系统的传递功能获得的信号之间的差异判断为由于速度超限而导致的驱动装置损坏, 反馈信号变为规定值以上。 构成:速度控制器2将速度指令值1和反馈信号4之间的偏差5应用于驱动装置3.另一方面,比较器7将通过将值1乘以功能的函数获得的信号进行比较 发电机8,其通过信号4模拟速度控制系统的传递功能,当差值变为规定值以上时,向警报单元6输出信号,并将信号输出到鉴别器9,由此限制电压 一个电机 以这种方式,可以防止驱动装置由于损坏等而以速度超速。