-
公开(公告)号：US5598078A
公开(公告)日：1997-01-28
申请号：US285179
申请日：1994-08-03
申请人： Naoyuki Maeda
发明人： Naoyuki Maeda
CPC分类号： H02P8/38
摘要： A device for detecting asynchronization or stepping out of a stepping motor without making the stepping motor large in size. Parallel resonance circuit LC is provided in a recovery circuit of stator coil RL of the stepping motor for detecting linking current IX. If the stepping motor is out of step, the magnetic resistance between stator and rotor increases while the reactance of stator coil RL decreases. When motor drive current ID is turned off, a large transient current is momentarily generated yet is quickly dampened. While the motor drive current ID is off, linking current IX approaches zero. Consequently, if the stepping motor is out of step, there is no substantial difference in the linking current IX when motor drive current ID is turned on from when motor drive current ID was off. Also, the amplitude of the transient or resonance waveform is smaller than the amplitude when the stepping motor is operating normally. By thus detecting the resonance waveform of the parallel resonance circuit when motor drive current ID is turned on, it can be precisely determined whether or not the stepping motor is out of step.
摘要翻译： 用于检测步进电机的异步或步进电机而不使步进电机尺寸变大的装置。 并联谐振电路LC设置在用于检测连接电流IX的步进电机的定子线圈RL的恢复电路中。 如果步进电机失步，则定子和转子之间的磁阻增加，同时定子线圈RL的电抗减小。 当电机驱动电流ID关闭时，瞬间产生大的瞬变电流，并迅速衰减。 当电机驱动电流ID关闭时，连接电流IX接近零。 因此，如果步进电机失步，电机驱动电流ID从电动机驱动电流ID关闭时电机驱动电流ID开启时，连接电流IX没有实质差异。 此外，瞬态或共振波形的振幅小于步进电机正常工作时的振幅。 通过在马达驱动电流ID接通时检测并联谐振电路的谐振波形，可以精确地确定步进电机是否失步。
-
公开(公告)号：US4648026A
公开(公告)日：1987-03-03
申请号：US684317
申请日：1984-12-20
申请人： Bruce E. Petrick
发明人： Bruce E. Petrick
IPC分类号： H02P8/14 , G05B19/416 , G06F15/20 , H02K29/04
CPC分类号： G05B19/416 , G05B2219/43097
摘要： A microprocessor stepper motor drive uses a single acceleration/deceleration profile regardless of the final velocity of the device being driven. A first down counter stores the desired final velocity from a microprocessor. An acceleration/deceleration profile is stored in a storage device and added to the desired final velocity to produce a smooth velocity profile.
摘要翻译： 微处理器步进电机驱动器使用单个加速/减速曲线，而不管驱动装置的最终速度如何。 第一个向下计数器存储来自微处理器的所需最终速度。 加速/减速曲线存储在存储装置中并加到期望的最终速度以产生平滑的速度分布。
-
公开(公告)号：US4536691A
公开(公告)日：1985-08-20
申请号：US535948
申请日：1983-09-26
申请人： Kenji Sakakibara
发明人： Kenji Sakakibara
CPC分类号： G05B19/40
摘要： A stepping motor having a plurality of phase windings and a rotor which is driven toward a desired position with selective variations of the lead interval between the energized phase windings and the current rotational position of the rotor. Two of the phase windings are alternately selected in a predetermined sequence for strongly accelerating or decelerating the rotor, and only one of the phase windings is energized while the rotor is rotated at a constant speed or is held at any rest position. Thus, the rotor is driven to the desired position in a short time and a substantial amount of power which is supplied to the phase windings for driving the rotor is saved.
摘要翻译： 具有多个相绕组的步进电动机和转子，其被驱动朝向所需位置，并且通电相绕组与转子的当前旋转位置之间的引导间隔的选择性变化。 以预定的顺序交替地选择两个相绕组，用于强制加速或减速转子，并且在转子以恒定速度旋转或保持在任何静止位置时，相绕组中只有一个被通电。 因此，转子在短时间内被驱动到期望的位置，节省了提供给用于驱动转子的相绕组的大量功率。
-
公开(公告)号：US4514675A
公开(公告)日：1985-04-30
申请号：US457890
申请日：1983-01-14
CPC分类号： H02P8/32
摘要： This invention is concerned with an electronic damper for a pulse motor wherein at the time of oscillation or rotation of a rotor in a pulse motor of a 1-phase excitation method having at least one pair of windings wound up to generate electromotive forces with the opposite polarities, a switching element is actuated in synchronization with completion of pulse driving the pulse motor, said one pair of windings are connected through a capacitor and the rotor can be brought to a standstill immediately by neutralizing the electromotive forces led up to each winding.
摘要翻译： 本发明涉及用于脉冲电机的电子阻尼器，其中在具有至少一对绕组的一相激励方法的脉冲电机中的转子的振荡或旋转时产生相反的电动势 极性，与完成脉冲驱动脉冲电机同步地启动开关元件，所述一对绕组通过电容器连接，并且通过中和每个绕组所引起的电动势可立即使转子静止。
-
公开(公告)号：US4496892A
公开(公告)日：1985-01-29
申请号：US586167
申请日：1984-03-05
申请人： Henry Bugatto, Jr.
发明人： Henry Bugatto, Jr.
摘要： A stepper motor controller which can control the motor to stop rapidly and with minimum overshoot and oscillation at a selected position by turning on and off one or several coils in a binary fashion to force the motor to conform to a predetermined position/velocity profile, resulting in the motor velocity and the position deviation from the null point to converge to zero at the selected null point. An encoder continuously generates current position and velocity data, a comparator compares the current velocity and position to a predetermined velocity/position profile to produce a binary output, and one or several motor coils are energized to drive the current motor velocity toward the predetermined value.
摘要翻译： 一种步进电动机控制器，其可以通过以二进制方式打开和关闭一个或多个线圈来控制电动机快速停止并且在选定位置具有最小的过冲和振荡，以迫使电动机符合预定的位置/速度分布，从而产生 在所选零点处的电机速度和从零点的位置偏差收敛到零。 编码器连续地生成当前位置和速度数据，比较器将当前速度和位置与预定的速度/位置分布进行比较以产生二进制输出，并且对一个或多个电动机线圈通电以将当前电动机速度驱动到预定值。
-
公开(公告)号：US4496891A
公开(公告)日：1985-01-29
申请号：US517460
申请日：1983-07-26
申请人： Makoto Kobayashi
发明人： Makoto Kobayashi
CPC分类号： H02P8/14
摘要： A frequency of a power supply applied to a stepping motor changes in accordance with a predetermined program to control the stepping motor such that a predetermined rotational speed of the motor is quickly obtained without generating noise. The power supply frequency is abruptly and linearly increased or decreased within an initial predetermined time interval. A high accelerating or decelerating torque is applied to the stepping motor to obtain a first rotational speed for a short period of time. Thereafter, the power supply frequency is exponentially decreased or increased within a final predetermined time interval to obtain a second rotational speed at which the noise level is low.
摘要翻译： 施加到步进电动机的电源的频率根据预定程序而改变，以控制步进电动机，从而快速获得电动机的预定转速而不产生噪声。 电源频率在初始预定时间间隔内突然和线性地增加或减少。 对步进电机施加高加速或减速转矩，以在短时间内获得第一转速。 此后，电源频率在最终预定时间间隔内以指数方式减小或增加，以获得噪声电平较低的第二转速。
-
公开(公告)号：US4490665A
公开(公告)日：1984-12-25
申请号：US517487
申请日：1983-07-26
申请人： Richard C. Meyer , Peter Kan
发明人： Richard C. Meyer , Peter Kan
摘要： A method for driving a stepper motor. The method includes varying the width of the high level drive impulses of a bi-level drive system based on the desired speed to be achieved by the stepper motor. A microprocessor is used to vary the pulse width.
摘要翻译： 一种用于驱动步进电机的方法。 该方法包括基于由步进电机实现的期望速度来改变双电平驱动系统的高电平驱动脉冲的宽度。 微处理器用于改变脉冲宽度。
-
公开(公告)号：US4489260A
公开(公告)日：1984-12-18
申请号：US508494
申请日：1983-06-27
申请人： Tsuyoshi Matsushita
发明人： Tsuyoshi Matsushita
CPC分类号： G05B19/416 , G05B19/40 , H02P23/20 , H02P8/14 , G05B2219/43088 , G05B2219/43093
摘要： A motor drive circuit includes ROM in which a plurality of driving speed patterns are stored, a RAM for storing step data indicative of the number of driving rotational steps, and a data processing circuit for supplying motor driving data to a motor control unit in accordance with one of the driving speed patterns selected on the basis of the step data in the RAM. A series of step timing data is included in each of the driving speed patterns. The data processing circuit sequentially reads out the series of step timing data related to the selected driving speed pattern from the ROM and supplies the motor driving data to the motor control unit each time the period of time corresponding to this read-out step timing data elapses.
摘要翻译： 电动机驱动电路包括存储多个驱动速度模式的ROM，用于存储表示驱动旋转步数的步数的RAM，以及用于根据电动机控制单元向马达控制单元提供电动机驱动数据的数据处理电路 基于RAM中的步数据选择的驱动速度模式之一。 在每个驱动速度模式中包括一系列步进定时数据。 数据处理电路从ROM连续地读出与所选择的驱动速度模式有关的一系列步进定时数据，并且每当与该读出步骤定时数据相对应的时间段经过时，将马达驱动数据提供给马达控制单元 。
-
公开(公告)号：US4465959A
公开(公告)日：1984-08-14
申请号：US400177
申请日：1982-07-20
申请人： Torao Yajima
发明人： Torao Yajima
CPC分类号： H02P8/32
摘要： A drive control system for a step motor. The system includes a detector for detecting when the step motor is central between step positions of the step motor and for producing a timing signal representative of the central position of the step motor. Motor drive coils selectively driven by a drive control circuit actuate the step motor. The drive control circuit receives the timing signal and in response thereto selectively actuates the motor drive coils to allow the step motor to stop at its next step position.
摘要翻译： 用于步进电机的驱动控制系统。 该系统包括检测器，用于检测步进马达在步进马达的步进位置之间的中心位置，以及用于产生表示步进马达的中心位置的定时信号。 由驱动控制电路有选择地驱动的电动机驱动线圈驱动步进电动机。 驱动控制电路接收定时信号，响应于此选择性地启动电动机驱动线圈，以允许步进电动机在其下一个步骤位置停止。
-
公开(公告)号：US4464616A
公开(公告)日：1984-08-07
申请号：US394558
申请日：1982-07-02
CPC分类号： G05B19/40
摘要： A stepping motor is microprocessingly controlled by digital circuitry which monitors the output of a shaft encoder adjustably secured to the stepping motor and generates a subsequent stepping pulse only after the preceding step has occurred and a fixed delay has expired. The fixed delay is variable on a real-time basis to provide for smooth and controlled deceleration.
摘要翻译： 步进电机由数字电路进行微处理控制，数字电路监控可调节地固定到步进电机的轴编码器的输出，并且仅在前一步骤已经发生并且固定延迟期满之后产生后续的步进脉冲。 固定延迟是实时变化的，以提供平滑和受控的减速。
-
-
-
-
-
-
-
-
-
搜索结果
85 条记录 (耗时 0.015 秒)
