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1. 发明授权

US11606051B2 Motor driving circuit, integrated circuit device, electronic apparatus, and motor control method 有权
公开(公告)号：US11606051B2
公开(公告)日：2023-03-14
申请号：US17083756
申请日：2020-10-29
申请人： SEIKO EPSON CORPORATION
发明人： Motoaki Nishimura , Haruo Hayashi , Makoto Katase , Yusuke Sano
IPC分类号： H02P8/04 , H02P8/24 , H02P8/12
摘要： A motor driving circuit includes a stepping motor driving circuit that controls driving of a stepping motor, a DC motor driving circuit that controls driving of a DC motor, and a control circuit that controls the stepping motor driving circuit and the DC motor driving circuit. The control circuit, upon accepting a driving instruction for driving the stepping motor in the middle of the DC motor driving circuit performing driving of the DC motor, stops driving of the DC motor by the DC motor driving circuit, and starts driving of the stepping motor by the stepping motor driving circuit.

2. 发明授权

US10243493B2 Motor control device and image forming apparatus 有权
公开(公告)号：US10243493B2
公开(公告)日：2019-03-26
申请号：US15832611
申请日：2017-12-05
申请人： CANON KABUSHIKI KAISHA
发明人： Shoji Takeda
IPC分类号： H02P8/14 , H02P8/32 , G03G15/00 , H02P8/04 , H02P23/20
摘要： A pulse generation unit is configured to output pulse signals for driving the stepping motor. A control unit is configured to perform acceleration control or deceleration control of the stepping motor via the pulse generation unit. The control unit is configured to calculate a number of the pulse signals to be output from the pulse generation unit to the stepping motor when accelerating or decelerating the stepping motor at constant acceleration in the acceleration control or the deceleration control based on an initial speed of the stepping motor when the acceleration control or the deceleration control starts, a target rotation speed, and time from start control of the stepping motor to time when the stepping motor reaches the target rotation speed, and change a rotation speed of the stepping motor in the acceleration control or the deceleration control along a sinusoidal waveform.

3. 发明授权

US09748880B2 Motor control device and motor control method 有权
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.

4. 发明申请

US20160352270A1 CONTROL DEVICE AND METHOD FOR STEPPER MOTOR THAT ENSURE IMPROVED PERFORMANCE OF STEPPER MOTOR DURING ACTIVATION PERIOD 有权
标题翻译：控制装置和步进电机的方法，确保在激活期间改进步进电机的性能
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。

5. 发明授权

US09356545B2 Driver circuit and method 有权
标题翻译：驱动电路及方法
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。

6. 发明授权

US4084122A Drive circuit for stepper motor 失效
标题翻译：步进电机驱动电路
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。

7. 发明授权

US3443181A Drive circuit for carriage stepping motor 失效
标题翻译：用于运输步进电机的驱动电路
公开(公告)号：US3443181A
公开(公告)日：1969-05-06
申请号：US3443181D
申请日：1966-03-28
申请人： IBM
发明人： KOZOL EUGENE T , PAWLETKO JOSEPH P
IPC分类号： H02P8/04 , H04L13/04 , H02K29/02 , H02P3/08
CPC分类号： H04L13/04 , H02P8/04 , Y10S400/902

8. 发明授权

US10041821B2 Indicating-needle type meter device 有权
公开(公告)号：US10041821B2
公开(公告)日：2018-08-07
申请号：US15058782
申请日：2016-03-02
申请人： YAZAKI CORPORATION
发明人： Yoshihisa Yamada
IPC分类号： G01D13/22 , H02P8/04 , G01D13/00 , G12B11/00 , G12B11/02 , G12B11/04 , G01D11/28 , G01D7/00 , G01D11/16 , H02P8/00
摘要： In an indicating-needle type meter device, when starting excitation of a stepping motor, a controller sets the phase of an excitation signal to a predetermined excitation start position and returns the phase of the excitation signal by a predetermined reversal angle such that an indicating-needle rotates in the backward direction, thereby positioning the indicating-needle at a stopper position. Subsequently, the controller advances the phase of the excitation signal by an origin return angle to rotate the indicating-needle in the forward direction to an origin position apart from the stopper position by a predetermined angle, thereby positioning the indicating-needle at the origin position. Here, the origin return angle is an angle obtained by adding a backlash angle, a predetermined positive pre-offset angle, and a positive placing error correction angle set based on a placing error of the indicating-needle with respect to the stopper.

9. 发明申请

US20170225327A1 ROBOT ARM MECHANISM AND STEPPING MOTOR CONTROL DEVICE 有权
公开(公告)号：US20170225327A1
公开(公告)日：2017-08-10
申请号：US15498972
申请日：2017-04-27
申请人： LIFE ROBOTICS INC.
发明人： Woo-Keun YOON
IPC分类号： B25J9/10 , H02P8/04 , B25J18/02 , H02P8/38 , B25J9/06 , B25J18/06
CPC分类号： B25J9/1005 , B25J9/06 , B25J9/126 , B25J9/1628 , B25J13/088 , B25J18/02 , B25J18/06 , H02P8/04 , H02P8/38 , Y10S901/24
摘要： An object of the present invention is to prevent unnecessary driving stop of a stepping motor. A robot arm section includes a robot arm, a stepping motor 31a, a motor driver 31b, an encoder 31c and a step-out detection section 31e. The robot arm has a joint J1. The stepping motor generates power for operating the joint. The motor driver drives the stepping motor according to a target angle. The encoder outputs an encoder pulse every time a drive shaft of the stepping motor rotates by a predetermined angle. The step-out detection section detects a step-out of the stepping motor based on the target angle and a current angle of the stepping motor that is identified based on the encoder pulse. When the stepping motor does not recover from the step-out before a predetermined grace time elapses from a time at which the step-out is detected, the motor driver stops driving the stepping motor at the time point at which the grace time elapses.

10. 发明授权

US6127796A Method and device for driving a self-timing stepping motor 失效
标题翻译：用于驱动自定时步进电机的方法和装置
公开(公告)号：US6127796A
公开(公告)日：2000-10-03
申请号：US903540
申请日：1997-07-30
申请人： Siegfried Moeller
发明人： Siegfried Moeller
IPC分类号： B41J13/00 , B65H29/12 , H02P8/00 , H02P8/04 , H02P8/34 , G05B19/40
CPC分类号： H02P8/00 , B41J13/0018 , B65H29/12 , H02P8/04 , H02P8/34 , B65H2513/10 , B65H2555/24
摘要： For driving a self-timing stepping motor which can be decelerated by an external load, a driving device presets a target step frequency and the motor is started with this target step frequency. The actual rotational speed of the stepping motor is determined and, as a function of this determined rotational speed, the target step frequency is changed when the rotational speed falls below a preset actual rotational speed of the stepping motor for a preset time interval.
摘要翻译：为了驱动可以通过外部负载减速的自定时步进电机，驱动装置预设目标步进频率，并且以该目标步进频率起动电动机。确定步进电动机的实际转速，并且根据该确定的转速，当转速低于预设时间间隔的步进电动机的预设实际转速时，目标步进频率发生变化。

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