公开(公告)号：US4682092A

公开(公告)日：1987-07-21

申请号：US741877

申请日：1985-06-06

申请人： John Pellegrino ,  Simyon Palmin

发明人： John Pellegrino ,  Simyon Palmin

IPC分类号： H02P8/12 ,  H02K19/10

CPC分类号： H02P8/12

摘要： In the disclosed system, a switching circuit energized from a source applies current pulses to the windings of a motor, such as a stepping motor. A chopper regulates the winding currents during each current pulse through four or more control cycles, a power cycle, a circulating cycle, a reset cycle and a second circulating cycle. The chopper enables current from the source to the winding during the power cycle; disables the source and forces residual current entirely within the switching circuit and outside the source during the circulating cycles; and constrains current flow from the winding through the source against the plurality of the source during the reset cycle. Preferably, a second switching circuit energizes a second winding and the chopper times the cycles so that the power cycle in one winding coincides with the reset cycle in the other winding.

摘要翻译： 在所公开的系统中，从源极供电的开关电路将电流脉冲施加到诸如步进电机的电动机的绕组。 斩波器通过四个或更多个控制周期，功率周期，循环周期，复位周期和第二循环周期来调节每个电流脉冲期间的绕组电流。 斩波器在电源循环期间实现从源极到绕组的电流; 在循环循环期间，禁止源极和强制剩余电流完全在开关电路内部和源外; 并且在复位周期期间约束来自绕组通过源的电流流向多个源。 优选地，第二开关电路使第二绕组和斩波器通电循环，使得一个绕组中的功率周期与另一个绕组中的复位周期重合。

公开(公告)号：US4714867A

公开(公告)日：1987-12-22

申请号：US913537

申请日：1986-09-30

申请人： Simyon Palmin ,  Vladimir Shlain

发明人： Simyon Palmin ,  Vladimir Shlain

IPC分类号： H02P8/04 ,  H02P8/14 ,  H02P8/24 ,  H02P8/00

CPC分类号： H02P8/24 ,  H02P8/04 ,  H02P8/14 ,  G05B2219/43024

摘要： A stepper motor is accelerated and decelerated with a parabolic velocity profile to efficiently utilize the available torque of the motor. The times between pulses to obtain a parabolic velocity profile are determined by a microprocessor-based stepper motor controller from desired values of start/stop velocity, maximum velocity and time to reach maximum velocity. The required times are stored in a random access memory and are used to supply to the motor a pulse train which follows the parabolic velocity profile during acceleration and deceleration. The controller is easily programmable to accommodate different motor characteristics, different applications and different operating parameters.

摘要翻译： 步进电机以抛物线速度曲线加速和减速，以有效利用电机的可用转矩。 获得抛物线速度曲线的脉冲之间的时间由基于微处理器的步进电动机控制器根据期望的开始/停止速度值，最大速度和时间达到最大速度来确定。 所需的时间存储在随机存取存储器中，并且用于在加速和减速期间向马达提供跟随抛物线速度分布的脉冲串。 控制器易于编程，适应不同的电机特性，不同的应用和不同的工作参数。

公开(公告)号：US4703238A

公开(公告)日：1987-10-27

申请号：US2797

申请日：1987-01-13

申请人： Simyon Palmin ,  Brian Hewson

发明人： Simyon Palmin ,  Brian Hewson

IPC分类号： H02P7/00 ,  G05B9/02

CPC分类号： H02P7/04

摘要： An amplifier system for energizing a d.c. motor from a power source in response to an error signal includes a bridge circuit including a first switching transistor pair for supplying a first current from the power source through the motor in one direction and a second switching transistor pair for supplying a second current from the power source through the motor in the opposite direction. A zero crossing detector determines the sign of the error signal and enables the first transistor pair when the error is positive and enables the second transistor pair when the error is negative. A current sensing resistor senses the first and second currents through the motor and provides a motor current signal representative thereof. An absolute value circuit provides an absolute value error signal representative of the magnitude of the error signal. A comparator means compares the motor current signal with the absolute value error signal and inhibits both the first and second transistor pairs when the motor current signal exceeds the absolute value error signal, thereby deenergizing the motor.

摘要翻译： 用于激励直流电的放大器系统 来自电源的电动机响应于误差信号包括桥接电路，该桥接电路包括：第一开关晶体管对，用于沿一个方向从电源提供来自电源的第一电流;以及第二开关晶体管对，用于从功率提供第二电流 源通过电机反方向。 过零检测器确定误差信号的符号，并且当误差为正时启用第一晶体管对，并且当误差为负时使能第二晶体管对。 电流感测电阻感测通过电动机的第一和第二电流，并提供代表其的电动机电流信号。 绝对值电路提供表示误差信号幅度的绝对值误差信号。 比较器装置将电动机电流信号与绝对值误差信号进行比较，并且当电动机电流信号超过绝对值误差信号时，抑制第一和第二晶体管对，从而使电动机断电。

公开(公告)号：US4675590A

公开(公告)日：1987-06-23

申请号：US737235

申请日：1985-05-23

申请人： John Pellegrino ,  Simyon Palmin

发明人： John Pellegrino ,  Simyon Palmin

IPC分类号： H02P8/32 ,  H02P8/00

CPC分类号： H02P8/32

摘要： In the disclosed stepping motor system a band pass filter extracts error signals from currents in a stepping motor driver, and a feedback system delays command pulses to the driver on the basis of the error signals. This suppresses mid-frequency instabilities in the operation of the stepping motor.

摘要翻译： 在所公开的步进电动机系统中，带通滤波器从步进电机驱动器中的电流提取误差信号，并且反馈系统基于误差信号将指令脉冲延迟到驱动器。 这抑制了步进电动机的操作中的中频不稳定性。