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120 条记录 (耗时 0.028 秒)

    Method and apparatus for measuring speed of a brush motor
    1.
    发明授权
    Method and apparatus for measuring speed of a brush motor 有权
    用于测量刷马达速度的方法和装置

    公开(公告)号：US09046544B2

    公开(公告)日：2015-06-02

    申请号：US13493754

    申请日：2012-06-11

    申请人： Stefan Mark Atay

    发明人： Stefan Mark Atay

    IPC分类号： H02P1/00 ,  G01P3/46 ,  G01P3/48

    CPC分类号： G01P3/46 ,  G01P3/48 ,  Y10S388/904

    摘要： A system for determining motor speed of a brush DC motor, including a first filter for receiving a substantially low frequency portion of a sensed current of the motor and parameters corresponding thereto, for calculating a speed estimate of the motor; an adaptive bandpass filter having a center frequency corresponding to the speed estimate of the first filter, for receiving the sensed current and substantially isolating a first periodic current fluctuation thereof. A detected frequency of the first periodic current fluctuation corresponds to the speed of the brush DC motor. The system may include a tracking frequency selection block for selecting a frequency component of the sensed current and providing same to the first filter, wherein the speed estimate is based in part upon the selected frequency component.

    摘要翻译： 一种用于确定电刷直流电动机的电动机速度的系统，包括用于接收电动机的感测电流的基本上低频部分的第一滤波器及与其对应的参数的系统，用于计算电动机的速度估计; 具有对应于第一滤波器的速度估计的中心频率的自适应带通滤波器，用于接收感测的电流并且基本上隔离其第一周期性电流波动。 第一周期性电流波动的检测频率对应于电刷直流电动机的速度。 该系统可以包括用于选择感测电流的频率分量并将其提供给第一滤波器的跟踪频率选择块，其中速度估计部分地基于所选择的频率分量。

    Method and Apparatus for Measuring Speed of a Brush Motor
    2.
    发明申请
    Method and Apparatus for Measuring Speed of a Brush Motor 有权
    用于测量刷马达速度的方法和装置

    公开(公告)号：US20120326705A1

    公开(公告)日：2012-12-27

    申请号：US13493777

    申请日：2012-06-11

    申请人： Stefan Mark Atay

    发明人： Stefan Mark Atay

    IPC分类号： G01P3/48

    CPC分类号： G01P3/46 ,  G01P3/48 ,  Y10S388/904

    摘要： A system for determining motor speed of a brush DC motor in an apparatus, including a first filter for receiving a substantially DC component of the motor current and parameters corresponding to the brush DC motor, for calculating a speed estimate thereof; an adaptive bandpass filter having a center frequency corresponding to the speed estimate of the first filter, for receiving the motor current and substantially isolating a periodic current fluctuation thereof; a block for determining a frequency of the periodic current fluctuation, the current fluctuation corresponding to motor speed of the brush DC motor. The adaptive bandpass filter uses debounce filtering to reduce rapid filter passband switching, and a run-in period prior to passband switching to obviate transient effects of filter switching.

    摘要翻译： 一种用于确定装置中的电刷直流电动机的电动机速度的系统，包括用于接收电动机电流的大致直流分量的第一滤波器和对应于电刷直流电动机的参数，用于计算其速度估计值; 具有对应于第一滤波器的速度估计的中心频率的自适应带通滤波器，用于接收电动机电流并且基本上隔离其周期性电流波动; 用于确定周期性电流波动的频率的块，对应于电刷直流电动机的电动机速度的电流波动。 自适应带通滤波器使用去抖动滤波来减少快速滤波器通带切换，以及通带切换之前的预期周期，以消除滤波器切换的瞬态效应。

    Device and method for controlling motor
    3.
    发明授权
    Device and method for controlling motor 有权
    电机控制装置及方法

    公开(公告)号：US07449850B2

    公开(公告)日：2008-11-11

    申请号：US11528645

    申请日：2006-09-28

    申请人： Kazushige Muroi

    发明人： Kazushige Muroi

    IPC分类号： H02P1/00

    CPC分类号： B41J19/202 ,  Y10S388/904

    摘要： A motor control method/device is provided in which a speed change during a deceleration period is stabilized in performing a speed feedback control of a motor. In the motor control method/device, the speed feedback control is performed such that a speed of a body driven by the motor is consistent with a predetermined target speed. A deceleration directive corresponding to time elapsed since a predetermined deceleration control start timing is generated as the target speed using a deceleration function of the elapsed time, to perform the speed feedback control based on the deceleration directive, during a deceleration control period. The deceleration control period starts from the deceleration control start timing and ends when the driven body is stopped. The deceleration function monotonically decreases from the deceleration control start timing until the deceleration directive becomes zero (0) and its derivative is a monotonically decreasing or increasing function or a constant.

    摘要翻译： 提供一种电动机控制方法/装置，其中在执行电动机的速度反馈控制期间，减速期间的速度变化是稳定的。 在电动机控制方法/装置中，进行速度反馈控制，使得由电动机驱动的车体的速度与预定的目标速度一致。 在减速控制期间，通过使用经过时间的减速功能，生成与从规定的减速控制开始时刻起经过的时间相应的减速指令，进行基于减速指令的速度反馈控制。 减速控制期间从减速控制开始时刻开始，当从动体停止时结束。 减速功能从减速控制开始定时直到减速指令变为零（0），其导数为单调递减函数或常数，单调减少。

    System and method for drift compensation when using pulse count controlled motors
    4.
    发明授权
    System and method for drift compensation when using pulse count controlled motors 有权
    使用脉冲计数控制电机时的漂移补偿系统和方法

    公开(公告)号：US07190129B1

    公开(公告)日：2007-03-13

    申请号：US11300127

    申请日：2005-12-14

    申请人： Frank J. Haas

    发明人： Frank J. Haas

    IPC分类号： H02K27/20

    CPC分类号： H02P7/0094 ,  H02P7/04 ,  Y10S388/904

    摘要： A system of detecting position drift in the motor due to lost pulses. Due to imperfections in the motor, the timing of the commutation pulses is not uniform but forms a unique repeatable signature. The system identifies lost pulses by using a pattern recognition technique on the signature of the motor commutation pulse rate. By detecting when a pulse is lost, the system can apply a correction to the pulse count. Accordingly, the real time correction of the pulse count allows for the system to operate with significantly reduced mispositioning errors. In addition, the system requires far fewer calibrations.

    摘要翻译： 由于失去的脉冲，检测电动机的位置漂移的系统。 由于电动机的缺陷，换向脉冲的定时不均匀，而是形成一个独特的可重复的特征。 该系统通过使用模式识别技术识别电动机换流脉冲率来识别丢失的脉冲。 通过检测脉冲何时丢失，系统可以对脉冲计数应用校正。 因此，脉冲计数的实时校正允许系统以显着减少的错位错误进行操作。 此外，该系统需要的校准量要少得多。

    Stepping motor control circuit
    5.
    发明申请
    Stepping motor control circuit 失效
    步进电机控制电路

    公开(公告)号：US20050046378A1

    公开(公告)日：2005-03-03

    申请号：US10913983

    申请日：2004-08-05

    申请人： Masateru Nishimoto

    发明人： Masateru Nishimoto

    IPC分类号： H02P8/00 ,  H04N5/232

    CPC分类号： H04N5/23296 ,  H04N5/232 ,  Y10S388/904

    摘要： At the start of driving a stepping motor, a CPU sets the switching widths of the first through eighth states in a pulse width setting register, sets the switching counts of the first through eighth states in a pulse switching count register, and sets the start of driving the stepping motor in a driving start register. A latch then outputs an excitation pulse, and the stepping motor is accelerated, driven at a constant speed, decelerated, and stopped. By setting the switching widths and switching counts of the first through eighth states at the start of driving and setting the start of driving, the CPU need not control the stepping motor, reducing the process burden on the CPU.

    摘要翻译： 在驱动步进电机的开始时，CPU将脉冲宽度设定寄存器中的第一至第八状态的切换宽度设定为脉冲切换计数寄存器中的第一至第八状态的切换计数，并设定开始 在驱动启动寄存器中驱动步进电机。 然后，锁存器输出激励脉冲，并且步进电机被加速，以恒定速度驱动，减速停止。 通过设置开始驱动时的第一至第八状态的切换宽度和切换次数，并设置驱动开始，CPU不需要控制步进电机，从而减少CPU处理负担。

    Moveable barrier operator
    6.
    发明授权
    Moveable barrier operator 有权
    可移动屏障操作员

    公开(公告)号：US06720747B1

    公开(公告)日：2004-04-13

    申请号：US09693141

    申请日：2000-10-20

    申请人： James J. Fitzgibbon ,  Paul E. Wanis ,  Colin B. Willmott

    发明人： James J. Fitzgibbon ,  Paul E. Wanis ,  Colin B. Willmott

    IPC分类号： E05F1518

    CPC分类号： E05D15/38 ,  E05F15/00 ,  E05F15/603 ,  E05F15/668 ,  E05F15/684 ,  E05Y2201/726 ,  E05Y2400/452 ,  E05Y2400/456 ,  E05Y2400/59 ,  E05Y2400/822 ,  E05Y2800/00 ,  E05Y2900/106 ,  Y10S388/904 ,  Y10S388/909

    摘要： A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.

    摘要翻译： 具有改进的安全性和能量效率特征的可移动屏障操作者自动检测线路电压频率并使用该信息来设置工作灯关闭时间。 操作员自动检测门的类型（单面或分段），并使用该信息来设定门行程的最大速度。 操作人员从行程开始以线性可变的速度移动门，停止，以保持平稳和安静的表现。 当达到DOWN限制时，操作员通过将门驱动到地板中来提供全门关闭，并且未检测到自动反转状态。 操作人员提供用户选择最小停止速度，以便轻松启动和停止粘性或装订门。

    Drive circuit for a brushless DC motor
    8.
    发明授权
    Drive circuit for a brushless DC motor 有权
    无刷直流电机的驱动电路

    公开(公告)号：US06611117B1

    公开(公告)日：2003-08-26

    申请号：US09556717

    申请日：2000-04-21

    申请人： Eric A. Hardt

    发明人： Eric A. Hardt

    IPC分类号： H52P700

    CPC分类号： H02P6/16 ,  H02P6/12 ,  H02P6/20 ,  H02P29/032 ,  Y10S388/904

    摘要： A drive circuit for a brushless DC motor controls at least one of a number of possible operation features of the motor. The drive circuit includes a driver stage for providing a current for a stator coil and varies which of the number of possible operation features of the motor are controlled. The operation features of the motor include inrush current limit control, PWM speed control, analog speed control, detecting a locked rotor condition, setting an alarm following detection of the locked rotor condition, restarting the motor following the locked rotor condition, detecting a low speed condition, and setting an alarm following detection of the low speed condition. Some of the operation features of the motor utilize at least one parameter that defines the desired operation of the feature. The drive circuit further varies the parameters of the operation features without changing the physical configuration of the brushless DC motor.

    摘要翻译： 用于无刷直流电动机的驱动电路控制电动机的许多可能的操作特征中的至少一个。 驱动电路包括用于为定子线圈提供电流并改变控制电动机的可能操作特征数量的驱动级。 电动机的运行特性包括浪涌电流限制控制，PWM速度控制，模拟速度控制，检测转子转子状态，检测到转子转子状态后设置报警，在转子转动状态下重启电机，检测低速 条件，并在检测到低速条件后设置报警。 电动机的一些操作特征使用至少一个限定特征的期望操作的参数。 驱动电路进一步改变操作特征的参数，而不改变无刷直流电动机的物理结构。