专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

WO1997038487A1 MOTOR DRIVING DEVICE 审中-公开
标题翻译：电机驱动装置
公开(公告)号：WO1997038487A1
公开(公告)日：1997-10-16
申请号：PCT/JP1997001276
申请日：1997-04-11
申请人： CITIZEN WATCH CO., LTD. , HIGUCHI, Haruhiko , ICHIKAWA, Masakazu , KIHARA, Hiroyuki , MURAKAMI, Tomomi , TSUCHIYA, Hidetaka
发明人： CITIZEN WATCH CO., LTD.
IPC分类号： H02P08/00
CPC分类号： H02P6/20 , H02P8/02 , H02P8/08
摘要： A phase locked driving type motor is reliably started and stably rotated. A motor driving device is provided with a stepper motor constituted at least of a bipolar stator, a rotor with a bipolar permanent magnet, and a driving coil magnetically coupled to the stator, a driving pulse generating means which outputs a driving pulse signal for driving the stepper motor, a driving circuit which supplies a driving current to the driving coil according to the signal from the driving pulse generating means, a voltage detecting circuit which detects the back electromotive voltage generated by the rotation of the rotor, and a magnetic pole position detecting means which detects the position of the magnetic pole of the rotating rotor with respect to the stator based on the detection signal of the voltage detecting circuit. The driving pulse generating means controls the outputting timing of the driving pulse signal based on the detection signal of the pole position detecting means used. The magnetic pole position detecting means stops the output of the driving pulse signal based on the signal detected by means of the voltage detecting circuit while the driving pulse signal is outputted and, at the same time, causes a driving pulse signal whose phase is opposite to that of the driving pulse signal to be outputted. The phase locked driving type motor is started reliably, accelerated quicky, and rotated stably. A higher-performance motor driving circuit can be realized by combining embodiments. Moreover, high-speed high-torque rotation of the motor is realized with a simple system constitution without changing the structure of a conventional flat type bipolar motor.
摘要翻译：锁定驱动型电动机可靠地启动并稳定旋转。电动机驱动装置设置有至少由双极性定子构成的步进电动机，具有双极型永久磁铁的转子和与该定子磁耦合的驱动线圈，驱动脉冲发生装置输出驱动脉冲信号步进电机，根据来自驱动脉冲发生装置的信号向驱动线圈提供驱动电流的驱动电路，检测由转子旋转产生的反电动势电压的电压检测电路和磁极位置检测基于电压检测电路的检测信号来检测旋转转子的磁极相对于定子的位置的装置。驱动脉冲发生装置根据所使用的磁极位置检测装置的检测信号来控制驱动脉冲信号的输出定时。磁极位置检测装置在输出驱动脉冲信号的同时基于通过电压检测电路检测到的信号来停止驱动脉冲信号的输出，同时使相位相反的驱动脉冲信号驱动脉冲信号的输出。锁定驱动型电动机可靠地启动，加速快速并且稳定地旋转。可以通过组合实施例来实现更高性能的电动机驱动电路。此外，通过简单的系统结构实现电动机的高速高扭矩旋转，而不改变传统平面型双极电动机的结构。

62. 发明公开

US20240186923A1 CONTROL CIRCUIT OF A STEPPER MOTOR CAPABLE OF DETECTING AN EXTERNAL MAGNETIC FIELD 审中-公开
公开(公告)号：US20240186923A1
公开(公告)日：2024-06-06
申请号：US18514519
申请日：2023-11-20
申请人： ETA SA Manufacture Horlogère Suisse
发明人： Joerg BERTHOUD
IPC分类号： H02P8/02 , G04C3/14 , H02P8/08
CPC分类号： H02P8/02 , G04C3/14 , H02P8/08
摘要： A control circuit of a timepiece motor (2), including a bipolar permanent magnet (6), a stator (4) defining two isthmi (12a & 12b) and two rest positions for the rotor, and a coil (18) mounted on the stator. The control circuit can determine the position of the rotor at rest. An electric pulse generator (22) for detecting an external magnetic field formed by a circuits for: measuring the electrical current in the coil after an electrical pulse has been triggered, comparing the measured electrical current with a reference current, measuring the time allowing measuring a rise time between triggering of the electrical pulse and the next time the electrical current flowing in the coil reaches the reference current, and processing the rise time to be able to determine whether the measured rise time indicates the presence of a given external magnetic field passing through the two isthmi.

63. 发明授权

US10498270B2 Control device for stepping motor and control method for stepping motor 有权
公开(公告)号：US10498270B2
公开(公告)日：2019-12-03
申请号：US15945867
申请日：2018-04-05
申请人： Minebea Mitsumi Inc.
发明人： Koichi Takeda , Kazuo Takada , Shigeki Miyaji , Kei Yamazaki
IPC分类号： H02P8/12 , H02P8/08
CPC分类号： H02P8/12 , H02P8/08
摘要： A control device for a stepping motor gradually increases an absolute value of the excitation current in phase A from when the start until the end of the hold period such that the amount of change in the excitation current per unit time is smaller than or equal to a first predetermined value. From the start of the hold period until a predetermined time elapses, an absolute value of the excitation current in phase B gradually increases such that the amount of change in the excitation current per unit time is smaller than or equal to the first predetermined value. By the end of the hold period after the predetermined time has elapsed, the excitation current in phase B reaches zero. When the hold period ends, one-phase excitation operation starts and the excitation current flows in phase A first with the same polarity as at the end of the hold period.

64. 发明申请

US20190140568A1 ACTUATOR WITH INTEGRATED POSITION SENSOR AND PLAY COMPENSATION 审中-公开
公开(公告)号：US20190140568A1
公开(公告)日：2019-05-09
申请号：US15746890
申请日：2016-07-18
申请人： SOCIETE INDUSTRIELLE DE SONCEBOZ SA
发明人： Martin Liniger , Markus FLUCKIGER , Jan Persson
IPC分类号： H02P8/08 , H02P6/182 , H02P8/12
CPC分类号： H02P8/08 , H02P6/16 , H02P6/182 , H02P8/12 , H02P8/42
摘要： Methods of compensating for play and for initializing a position encoder in an actuation system (2) including an actuated system (8) comprising an elastic element, and an actuator (4) with a stepper motor (12) having at least one electrical phase.

65. 发明申请

US20190028048A1 DRIVING DEVICE, PRINTER DEVICE, AND METHOD THEREOF 审中-公开
公开(公告)号：US20190028048A1
公开(公告)日：2019-01-24
申请号：US16033452
申请日：2018-07-12
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Tsutomu KAWAMOTO
IPC分类号： H02P8/24 , H02P8/12 , B41J13/00 , B65H20/00 , B65H20/02
CPC分类号： H02P8/24 , B41J13/0009 , B41J29/38 , B41J33/14 , B65H20/005 , B65H20/02 , H02P8/00 , H02P8/08 , H02P8/12 , H02P8/26 , H02P8/28 , H02P8/30 , H02P2203/03
摘要： A driving device for a stepping motor includes a motor driving circuit configured to generate a current waveform representing an electrical angle in synchronization with a mechanical angle of the stepping motor, and excite the stepping motor using the current waveform; a memory configured to store a value of the electrical angle; and a controller configured to: when a power supply to the stepping motor and the motor driving circuit is stopped, store a first value of the electrical angle held by the motor driving circuit in the memory; and when the power supply is resumed, replace a value of the electrical angle of the motor driving circuit with the first value while suppressing a rotational operation of the stepping motor.

66. 发明授权

US09673740B2 Determining a rotor offset 有权
公开(公告)号：US09673740B2
公开(公告)日：2017-06-06
申请号：US14876109
申请日：2015-10-06
申请人： Ronald Paul Russ
发明人： Ronald Paul Russ
IPC分类号： H02P8/00 , H02P8/08 , H02P8/22
CPC分类号： H02P8/08 , H02P8/22
摘要： A system and method for determining a microstep rotor offset of a stepper motor is provided. The system includes a microcontroller configured to control voltage applied to a first coil and a second coil provided to operate the stepper motor; a back electro-magnetic force (BEMF) detection circuit configured to detect BEMF generated from the stepper motor. The stepper motor drives a pointer with a pointer stop, and the system is configured to: 1) home the stepper motor to the pointer stop, and 2) perform an iterative operation to determine a specific microstep associated with the microstep rotor offset.

67. 发明授权

US09612579B2 Electronic clock 有权
公开(公告)号：US09612579B2
公开(公告)日：2017-04-04
申请号：US14415735
申请日：2013-07-23
申请人： CITIZEN HOLDINGS CO., LTD. , CITIZEN WATCH CO., LTD.
发明人： Yu Takyo , Masaaki Namekawa
IPC分类号： G04C3/14 , H02P8/02 , H02P8/08 , H02P8/18 , H02P8/22
CPC分类号： G04C3/146 , G04C3/14 , G04C3/143 , H02P8/02 , H02P8/08 , H02P8/18 , H02P8/22
摘要： Provided is an electronic clock which is capable of finely controlling a driving force of a normal driving pulse and suppresses variation in current consumption without an increase in circuit size. The electronic clock is configured so that while a chopped driving pulse is output and in an interval in which coil terminals have heretofore been short-circuited, a pulse is output (hereinafter referred to as adjustment pulse) for control from a terminal that is different from a terminal of a motor driver from which the normal driving pulse has been output. The output pattern of the adjustment pulse is changed with reference to a driving rank selecting circuit to increase or decrease a motor driving current and hence change the driving force.

68. 发明申请

US20130221893A1 RESET-TO-ZERO AND RETURN PROCESSING METHOD AND DEVICE FOR STEPPING MOTOR 审中-公开
标题翻译：复位到零和返回处理方法和步进电机的装置
公开(公告)号：US20130221893A1
公开(公告)日：2013-08-29
申请号：US13777422
申请日：2013-02-26
申请人： CALSONIC KANSEI CORPORATION
发明人： Ryosuke MURAKI
IPC分类号： H02P8/00
CPC分类号： H02P8/00 , H02P8/08 , H02P8/26
摘要： A movable member is movable in a movable range in response to a command issued to a stepping motor such that a given position of the movable member or a given angle of the movable member is changed. An operating method and/or apparatus may select a stopper member origin position from among a plurality of stopper member positions based on which of the plurality of stopper member positions is closer to a first position or a first angle of the movable member that has been calculated based at least in part on a command issued to the stepping motor; perform reset-to-zero processing by moving the movable member into a second position or a second angle relative to the stopper member origin position; and performing return processing by moving the movable member from the second position or the second angle to the first position or the first angle that has been calculated based at least in part on the command issued to the stepping motor before performing said reset-to-zero processing.
摘要翻译：响应于向步进电机发出的命令，可移动部件在可移动范围内可移动，使得可移动部件的给定位置或可移动部件的给定角度改变。操作方法和/或设备可以从多个止动构件位置中选择止动构件起始位置，其中多个止动构件位置中的哪一个更靠近已经计算的可移动构件的第一位置或第一角度至少部分地基于向步进电机发出的命令; 通过将可动构件相对于止动构件原点位置移动到第二位置或第二角度来执行复位到零处理; 以及通过将所述可动构件从所述第二位置或所述第二角度移动到至少部分地基于在执行所述复位到零之前发出到所述步进电机的命令而计算出的所述第一位置或所述第一角度来执行返回处理处理。

69. 发明授权

US07816883B2 Return-to-zero control method for a stepper motor 失效
标题翻译：步进电机的归零控制方法
公开(公告)号：US07816883B2
公开(公告)日：2010-10-19
申请号：US11973632
申请日：2007-10-09
申请人： David B. Houser , Lamar H. McLouth , David J. Elliott
发明人： David B. Houser , Lamar H. McLouth , David J. Elliott
IPC分类号： H02P8/02
CPC分类号： H02P8/08
摘要： In a return-to-zero stepping sequence for a stepper motor that drives the pointer of a gauge, steps that could potentially cause the pointer to flutter are modified. At least the initial potential flutter step of the stepping sequence is divided into sub-steps to progressively attenuate the motor torque, the motor is deactivated during intermediate potential flutter steps, and at least the final potential flutter step of the stepping sequence is divided into sub-steps to progressively re-apply the motor torque.
摘要翻译：对于驱动计量器的指针的步进电机的归零步进顺序，可能会导致指针颤动的步骤被修改。至少将步进序列的初始潜在颤振步骤分为子步骤，以逐渐衰减电机转矩，在中间电位颤振阶段期间马达停用，并且至少将步进序列的最终潜在颤振步骤分为子 - 逐步重新施加电机扭矩。

70. 发明授权

US07656115B2 Calibrating stepper motor by driving fractional ranges 有权
$Calibrating stepper motor by driving fractional ranges$
标题翻译：通过驱动分数范围校准步进电机
公开(公告)号：US07656115B2
公开(公告)日：2010-02-02
申请号：US11818821
申请日：2007-06-15
申请人： Joel C. VanderZee
发明人： Joel C. VanderZee
IPC分类号： H02P8/00 , G05B19/40
CPC分类号： H02P8/24 , G05B19/401 , G05B2219/42115 , G05B2219/43083 , H02M2001/325 , H02P8/08
摘要： A stepper motor driving a driven member is calibrated by periodically driving the member from its current operational position to an end stop of the driven member's total travel range; however, the driven member approaches the end stop in a series of ever-shorter travel segments. The first travel segment is less than ⅓ the total travel range to compensate for a possible sudden speed reversal, which can be accidentally triggered by the driven member reaching and “bouncing off” the end stop. Limiting the commanded first travel segment to less than ⅓ the total travel range prevents the driven member from reaching an opposite travel limit should the driven member suddenly reverse direction at three times the normal forward speed, wherein such triple speed is characteristic of reverse-speed situations.
摘要翻译：通过将构件从其当前操作位置周期性地驱动到从动构件的总行驶范围的终止位置来校准驱动从动构件的步进电机; 然而，从动构件在一系列不断缩短的行程段中接近终点。第一个行程段小于总行驶距离的1/3，以补偿可能的突然转速反转，这可能是由被驱动构件意外触发到“停止”停止。如果被驱动构件在正常向前速度的三倍突然反向，则将指令的第一行驶区段限制在小于总行程范围的1/3的范围内，防止从动构件达到相反的行驶极限，其中这种三速度是反向行驶的特征，速度的情况。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式