公开(公告)号：US09748880B2

公开(公告)日：2017-08-29

申请号：US15074242

申请日：2016-03-18

申请人： CANON KABUSHIKI KAISHA

发明人： Yoshihiro Mizuo

IPC分类号： G05B19/40 ,  H02P8/04 ,  H02P8/10 ,  H02P6/15

CPC分类号： H02P8/04 ,  H02P6/15 ,  H02P8/10

摘要： A motor control unit having a motor structure that rotates a rotor by voltage excitation includes a photo interrupter, a slit rotation plate, a comparator, and an encoder circuit in order to obtain a position detection signal corresponding to a rotational phase of an output shaft. During a period of time from the motor stopping to the change of the output of an encoder circuit after the supply of a drive voltage waveform, a CPU supplies a drive voltage waveform that is advanced by an advance angle amount that has been set in advance to the motor, and after the change of the output of the encoder circuit, a drive signal by which the advance angle amount is controlled based on the output of the encoder circuit is supplied to the motor.

公开(公告)号：US20160352270A1

公开(公告)日：2016-12-01

申请号：US15154716

申请日：2016-05-13

申请人： KYOCERA Document Solutions Inc.

发明人： Hirotaka ISHIDA

IPC分类号： H02P8/04

CPC分类号： H02P8/04 ,  H02P8/18 ,  H02P8/22 ,  H02P29/50

摘要： A control device for a stepper motor drives in a 1-2-phase excitation method in response to an input of a drive signal. The control device includes a control signal generating unit and a drive signal generating unit. The control signal generating unit generates a pulsed control signal. The drive signal generating unit generates the drive signal for rotating by a predetermined step angle every time the control signal is input. The predetermined step angle is a half of a step angle of a 2-phase excitation method. The control signal generating unit configures a higher pulse rate of a first to an n-th (n is an integer equal to or more than 2 and equal to or less than 3) control signals in an activation period of the stepper motor than a pulse rate of the control signals following the n-th control signal.

摘要翻译： 用于步进电机的控制装置响应于驱动信号的输入而以1-2相励磁方式驱动。 控制装置包括控制信号生成单元和驱动信号生成单元。 控制信号生成部生成脉冲控制信号。 驱动信号产生单元每当输入控制信号时产生用于旋转预定步进角的驱动信号。 预定的阶梯角是2相激励方法的步进角的一半。 控制信号生成单元在步进电动机的激活期间配置比脉冲的第1〜第n（n为2以上且3以下的整数）以上的脉冲速度 第n个控制信号之后的控制信号的速率。

公开(公告)号：US09356545B2

公开(公告)日：2016-05-31

申请号：US13952479

申请日：2013-07-26

申请人： Semiconductor Components Industries, LLC

发明人： Kosaku Hioki ,  Kazumasa Takai ,  Takeshi Naganuma ,  Yoshihiro Niwa

IPC分类号： G05B19/40 ,  H02P6/18 ,  H02P8/12 ,  H02P8/16 ,  H02P8/04

CPC分类号： H02P6/182 ,  G05B19/40 ,  H02P6/18 ,  H02P6/188 ,  H02P8/04 ,  H02P8/12 ,  H02P8/16

摘要： An amount of a motor drive current is controlled to an appropriate value. Two coils are provided, and a rotor is rotated by the coils by setting different phases for the supplied currents to the two coils. During a phase where one of the coils is in a high-impedance state, an induced voltage generated in the coil is detected. According to the state of the induced voltage, an output control circuit controls the amounts of the motor drive currents supplied to the two coils.

摘要翻译： 电动机驱动电流的量被控制到适当的值。 提供两个线圈，并且通过将供给的电流设定为两个线圈的不同相位，使线圈旋转转子。 在其中一个线圈处于高阻抗状态的相位中，检测线圈中产生的感应电压。 根据感应电压的状态，输出控制电路控制提供给两个线圈的电动机驱动电流的量。

公开(公告)号：US20150326158A1

公开(公告)日：2015-11-12

申请号：US14705378

申请日：2015-05-06

申请人： Johnson Electric S.A.

发明人： Miha Furlan ,  Yvan Bourqui ,  Maxime Bruelhart

IPC分类号： H02P8/14 ,  H02P8/34

CPC分类号： H02P8/14 ,  H02P6/17 ,  H02P8/04 ,  H02P8/12 ,  H02P8/34

摘要： A controller is provided for driving a stepper motor with a magnetic rotor and at least one coil. The controller has a power stage for supplying the at least one coil with current, at least one analog Hall sensor for providing a signal as a function of the position of the magnetic rotor with respect to the Hall sensor, and a feedback line connecting the Hall sensor with the power stage to feed the signal of the Hall sensor back to the power stage.

摘要翻译： 提供一种用于驱动具有磁转子和至少一个线圈的步进电动机的控制器。 该控制器具有用于向至少一个线圈提供电流的至少一个模拟霍尔传感器的功率级，用于提供作为磁转子相对于霍尔传感器的位置的函数的信号，以及连接霍尔 传感器与功率级将霍尔传感器的信号反馈回功率级。

公开(公告)号：US07304449B2

公开(公告)日：2007-12-04

申请号：US11368453

申请日：2006-03-07

申请人： Yasuhiko Yoshihisa

发明人： Yasuhiko Yoshihisa

IPC分类号： G05B19/40

CPC分类号： H02P8/04 ,  H02P8/38

摘要： A stepping motor control apparatus includes a control circuit to control the excitation sequence of a stepping motor, and a switching circuit to switch electric power to be supplied to the stepping motor based on an instruction from the control circuit, and when the stepping motor is rotated from a stop state, the control circuit executes an acceleration processing after sending pulses at a frequency not higher than a maximum self-start frequency.

摘要翻译： 步进电动机控制装置包括控制步进电动机的励磁顺序的控制电路，以及根据来自控制电路的指示切换向步进电动机供给的电力的切换电路，以及当步进电动机旋转时 从停止状态开始，控制电路在以不大于最大自启动频率的频率发送脉冲之后执行加速处理。

公开(公告)号：US20060284589A1

公开(公告)日：2006-12-21

申请号：US11510348

申请日：2006-08-25

申请人： Ping-Hung Kuo

发明人： Ping-Hung Kuo

IPC分类号： H02P8/00

CPC分类号： H02P8/38 ,  H02P8/04

摘要： A stepper motor accelerating system is used for accelerating a stepper motor from a current rotational speed to a target rotational speed. The stepper motor accelerating system comprises a controller, a pulse generator, and a driver. The controller stores a safety acceleration curve. The safety acceleration curve is defined by shifting a characteristic curve of the stepper motor with a safety margin. The controller compares the current rotational speed and the target rotational speed with the safety accelerating curve, and then gets two corresponding points on the safety accelerating curve. The controller generates a real accelerating curve based on these two corresponding points. The pulse generator receives the real accelerating curve and converts to a pulse signal. The driver receives the pulse signal, and then drives the stepper motor with the pulse signal. The present invention accelerates the stepper motor base on the safety accelerating curve. By this way, the present invention is able to prevent the stepper motor from out-of-speed or out-of-step.

公开(公告)号：US07116074B2

公开(公告)日：2006-10-03

申请号：US11041957

申请日：2005-01-26

申请人： Ping-Hung Kuo

发明人： Ping-Hung Kuo

IPC分类号： H02P8/00

CPC分类号： H02P8/38 ,  H02P8/04

摘要： A stepper motor accelerating system is used for accelerating a stepper motor from a current rotational speed to a target rotational speed. The stepper motor accelerating system comprises a controller, a pulse generator, and a driver. The controller stores a safety acceleration curve. The safety acceleration curve is defined by shifting a characteristic curve of the stepper motor with a safety margin. The controller compares the current rotational speed and the target rotational speed with the safety accelerating curve, and then gets two corresponding points on the safety accelerating curve. The controller generates a real accelerating curve based on these two corresponding points. The pulse generator receives the real accelerating curve and converts to a pulse signal. The driver receives the pulse signal, and then drives the stepper motor with the pulse signal. The present invention accelerates the stepper motor base on the safety accelerating curve. By this way, the present invention is able to prevent the stepper motor from out-of-speed or out-of-step.

公开(公告)号：US07026781B2

公开(公告)日：2006-04-11

申请号：US11087721

申请日：2005-03-24

申请人： Hitoshi Yamazaki ,  Takeshi Nishimura ,  Akira Yasaki ,  Hideki Kinoshita ,  Shigeru Kojima ,  Jun Togashi

发明人： Hitoshi Yamazaki ,  Takeshi Nishimura ,  Akira Yasaki ,  Hideki Kinoshita ,  Shigeru Kojima ,  Jun Togashi

IPC分类号： G05B19/40

CPC分类号： G11B7/08582 ,  H02P8/04 ,  H02P8/32

摘要： A stepping motor driving system includes: a stepping motor that rotates at a predetermined angle according to a driving pulse signal, a vibration detector that detects vibration to output a vibration signal, and a stepping motor control unit that controls the driving pulse signal, which is applied to the stepping motor, to rotate the stepping motor at the predetermined angle. The driving pulse signal includes a start-up current which is required for rotating the stepping motor at a unit angle and a holding current which maintains a rotational angle of the stepping motor rotated by the start-up current. The stepping motor control unit changes the level of the holding current according to the vibration signal which is outputted from the vibration detector.

摘要翻译： 步进电机驱动系统包括：根据驱动脉冲信号以预定角度旋转的步进电机;检测振动以输出振动信号的振动检测器;以及控制驱动脉冲信号的步进电机控制单元， 施加到步进电机，使步进电机以预定角度旋转。 驱动脉冲信号包括以单位角度旋转步进电机所需的启动电流和维持步进电机的旋转角度旋转启动电流的保持电流。 步进电机控制单元根据从振动检测器输出的振动信号来改变保持电流的电平。

公开(公告)号：US20060038527A1

公开(公告)日：2006-02-23

申请号：US11041957

申请日：2005-01-26

申请人： Ping-Hung Kuo

发明人： Ping-Hung Kuo

IPC分类号： H02P8/00

CPC分类号： H02P8/38 ,  H02P8/04

摘要： A stepper motor accelerating system is used for accelerating a stepper motor from a current rotational speed to a target rotational speed. The stepper motor accelerating system comprises a controller, a pulse generator, and a driver. The controller stores a safety acceleration curve. The safety acceleration curve is defined by shifting a characteristic curve of the stepper motor with a safety margin. The controller compares the current rotational speed and the target rotational speed with the safety accelerating curve, and then gets two corresponding points on the safety accelerating curve. The controller generates a real accelerating curve based on these two corresponding points. The pulse generator receives the real accelerating curve and converts to a pulse signal. The driver receives the pulse signal, and then drives the stepper motor with the pulse signal. The present invention accelerates the stepper motor base on the safety accelerating curve. By this way, the present invention is able to prevent the stepper motor from out-of-speed or out-of-step.

摘要翻译： 步进电机加速系统用于将步进电机从当前转速加速到目标转速。 步进电机加速系统包括控制器，脉冲发生器和驱动器。 控制器存储安全加速度曲线。 安全加速度曲线是通过移动步进电机的特性曲线来确定的。 控制器将当前转速和目标转速与安全加速曲线进行比较，然后在安全加速曲线上得到两个对应点。 控制器基于这两个对应点产生实际的加速曲线。 脉冲发生器接收实际加速曲线并转换成脉冲信号。 驱动器接收脉冲信号，然后用脉冲信号驱动步进电机。 本发明基于安全加速曲线来加速步进马达基座。 通过这种方式，本发明能够防止步进电机超速或失步。

公开(公告)号：US4084122A

公开(公告)日：1978-04-11

申请号：US734304

申请日：1976-10-20

申请人： Robert E. Gettings

发明人： Robert E. Gettings

IPC分类号： H02P8/04 ,  H02K37/00

CPC分类号： H02P8/04

摘要： A drive circuit for energizing the winding of a stepper motor includes a first amplifier circuit which receives a unipolar input signal and depending upon the amplitude couples a positive or negative voltage potential to one terminal of the winding. A second amplifier circuit also receives the input signal and applies the same polarity voltage potential to a differentiating circuit. The differentiating circuit operates a transistor switch to couple for a predetermined period of time, a voltage potential of opposite polarity but equal in magnitude to that coupled to the first terminal of the winding, to the second terminal thereof. The application of the double voltage to the winding causes a rapid torque buildup and great acceleration to the stepper motor for a short period of time. The differentiating circuit includes a capacitor having a predetermined time constant which controls the period of time the opposite polarity voltage potential is applied to the second terminal of the winding.

摘要翻译： 用于激励步进电机的绕组的驱动电路包括：第一放大器电路，其接收单极性输入信号，并根据振幅将正或负电压电位耦合到绕组的一个端子。 第二放大器电路还接收输入信号并将相同的极性电压电位施加到微分电路。 微分电路操作晶体管开关，以在预定时间段内耦合相对极性但与耦合到绕组的第一端子的电压相等的电压电位到其第二端子。 将双电压施加到绕组会导致快速的转矩积累和对步进电机的很大加速时间。 微分电路包括具有预定时间常数的电容器，其控制相对极性电压电位施加到绕组的第二端子的时间段。