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    • 2. 发明申请
    • CONTROL TECHNIQUES FOR MOTOR DRIVEN SYSTEMS
    • 电机驱动系统的控制技术
    • US20100201302A1
    • 2010-08-12
    • US12367938
    • 2009-02-09
    • Colin LYDENJavier CALPE-MARAVILLAMark MURPHYEoin ENGLISH
    • Colin LYDENJavier CALPE-MARAVILLAMark MURPHYEoin ENGLISH
    • G05B11/26
    • G05B5/01
    • A drive signal for a motor-driven mechanical system has zero (or near zero) energy at an expected resonant frequency of the mechanical system. The drive signal may be provided in a series of steps according to a selected row of Pascal's triangle, wherein the number of steps equals the number of entries from the selected row of Pascal's triangle, each step has a step size corresponding to a respective entry of the selected row of Pascal's triangle, and the steps are spaced from each other according to a time constant determined by an expected resonant frequency of the mechanical system. Alternatively, the stepped drive signal may be provided as a series of uniform steps according to a selected row of Pascal's triangle, in which the steps are provided in a number of spaced intervals corresponding to the number of entries from the selected row of Pascal's triangle, each interval includes a number of steps corresponding to a respective entry from the selected row of Pascal's triangle and the intervals are spaced in time according to a time constant determined from the expected resonant frequency of the mechanical system. These techniques not only generate a drive signal with substantially no energy at the expected resonant frequency, they provide a zero-energy “notch” of sufficient width to tolerate systems in which the actual resonant frequency differs from the expected resonant frequencies.
    • 在机械系统的预期谐振频率下,用于电动机械系统的驱动信号具有零(或接近于零)的能量。 可以根据所选择的帕斯卡三角形行以一系列步骤提供驱动信号,其中步数等于所选行的帕斯卡三角形的条目数,每一步具有对应于 所选择的Pascal三角形行,并且步骤根据由机械系统的预期谐振频率确定的时间常数彼此间隔开。 或者,阶梯式驱动信号可以根据所选择的帕斯卡三角形行被提供为一系列均匀步骤,其中步骤以对应于所选行的帕斯卡尔三角形的条目数量的间隔间隔提供, 每个间隔包括对应于所选行的帕斯卡三角形的相应条目的多个步骤,并且间隔根据从机械系统的预期谐振频率确定的时间常数在时间上间隔开。 这些技术不仅在预期谐振频率下产生基本上没有能量的驱动信号,它们提供足够宽度的零能量“陷波”以容忍其中实际谐振频率与预期谐振频率不同的系统。
    • 4. 发明授权
    • Computer system for controlling value of operational parameters during
an operation
    • 用于操作操作参数值的计算机系统
    • US5989901A
    • 1999-11-23
    • US005982
    • 1998-01-12
    • Xi ZhaoGuobing Jin
    • Xi ZhaoGuobing Jin
    • G05B11/26G05B11/28C12N13/00
    • G05B11/28G05B11/26Y10S204/09
    • A computer system for controlling the parameters used during molecule transfer operations. The computer system includes a processor coupled to a memory. The memory stores instructions that are executed by the processor. The computer system controls the value of parameters that affect the characteristics of pulses delivered by a pulse generating circuit to a solution. The pulse generating unit delivers individual pulses during cycles. The cumulative pulse delivered during a specified number of cycles is a pulse output. The magnitude of a pulse output is determined by the number of cycles corresponding to the pulse output and the characteristics of the individual pulses delivered during the cycles. A pulse group is a series of pulse outputs. The computer system controls a molecule transfer operation by causing the pulse generation circuit to deliver one or more pulse groups to the solution. A user selects the shape and number of pulse groups to be delivered for an operation. The computer alters the operational parameters used by the pulse generation circuit to cause the pulse generation circuit to deliver pulse groups having the selected shapes.
    • 用于控制在分子转移操作期间使用的参数的计算机系统。 计算机系统包括耦合到存储器的处理器。 存储器存储由处理器执行的指令。 计算机系统控制影响由脉冲发生电路传递到解决方案的脉冲特性的参数值。 脉冲发生单元在循环期间传送单个脉冲。 在指定周期内传送的累积脉冲是脉冲输出。 脉冲输出的幅度由对应于脉冲输出的周期数和在周期期间递送的各个脉冲的特性决定。 脉冲组是一系列脉冲输出。 计算机系统通过使脉冲发生电路将一个或多个脉冲组递送到溶液来控制分子转移操作。 用户选择要进行操作的脉冲组的形状和数量。 计算机改变由脉冲发生电路使用的操作参数,使脉冲发生电路输出具有所选形状的脉冲组。
    • 6. 发明授权
    • Servo motor positioning control and position recording chip device
    • 伺服电机定位控制和位置记录芯片装置
    • US5744926A
    • 1998-04-28
    • US743285
    • 1996-11-04
    • Chen-Kuo LaiChang-Yu HoJia-Cheng Ke
    • Chen-Kuo LaiChang-Yu HoJia-Cheng Ke
    • G05B11/26G05B19/414
    • G05B19/4142G05B11/26G05B2219/34013G05B2219/34041G05B2219/34042G05B2219/34053G05B2219/34058G05B2219/41243G05B2219/50047
    • A chip device for positioning control and position recording of a servo motor. The chip device can be operated in two modes: a first mode, and a second mode. In the first mode, the chip device can perform step command conversion, position loop control, multiple shaft synchronization, and recording of the position of the motor shaft. The step command conversion utilizes a digital-differential analysis (DDA) method to convert the step waveform in the command signal into ramp waveform for smoothed control of the servo motor. The position loop control circuit compute for the error in position and then compensates the error to generate a 12-bit 2's complement output which is subsequently converted to analog signal used to drive the servo motor. The purpose of multiple shaft synchronization is to allow a plurality of servo motor to rotate in synchronization and accurately with the same increments. The recording of the position of the motor shaft is achieved by counting the number of pulses from a position encoder coupled to the servo motor. The chip device is fast in processing speed, small in size, and reliable in operation, and allows synchronization among a plurality of servo motors. Moreover, the chip device can be built with fewer components so that production cost can be reduced.
    • 一种用于定位伺服电机的控制和位置记录的芯片装置。 芯片器件可以以两种模式操作:第一模式和第二模式。 在第一种模式下,芯片装置可以执行步进命令转换,位置环控制,多轴同步和电机轴位置的记录。 步进命令转换利用数字差分分析(DDA)方法将命令信号中的阶跃波形转换成斜坡波形,以平滑控制伺服电机。 位置环控制电路计算位置误差,然后补偿误差,产生12位2的补码输出,随后将其转换为用于驱动伺服电机的模拟信号。 多轴同步的目的是允许多个伺服电动机以相同的增量同步且准确地旋转。 电动机轴的位置的记录是通过对与伺服电动机相连的位置编码器的脉冲数进行计数来实现的。 芯片装置的处理速度快,体积小,操作可靠,并且允许多个伺服电机之间的同步。 此外,芯片装置可以构造成较少的部件,从而可以降低生产成本。
    • 7. 发明授权
    • Pulse width modulator including incrementer/decrementer
    • 脉宽调制器包括增量/递减器
    • US5357219A
    • 1994-10-18
    • US128789
    • 1993-09-30
    • Takeshi Fujii
    • Takeshi Fujii
    • G05B11/26G06F1/025H02P7/06H02P7/29H03K7/08H03M1/82
    • H02P7/29G06F1/025H03M1/822
    • A pulse width modulator comprises: a reload register (8) which stores data D1 set as an initial value of data D and loads to a waveform timer (3), every time one waveform cycle is counted; a comparing circuit (10) which compares the data D1 and data D2 when the data D1 is changed to the data D2; and an incrementer/decrementer (9) which functions as an increment when the data D2 is larger than the data D1 as the comparing result, and as an decrementer when smaller, and every time the one waveform cycle is counted by a cyclic timer (7), increments or decrements the data D1 held in the waveform timer (3); and changes the ratio of an "H" level period and an "L" level period of an output waveform relatively slowly, against the rate of change (from D1 to D2) of a set value D of a timer register (2) for setting the "H" level period and the "L" level period of a pulse width modulation waveform.
    • 脉冲宽度调制器包括:每当一个波形周期被计数时,存储被设置为数据D的初始值的数据D1并被加载到波形计时器(3)的重载寄存器(8) 比较电路(10),当将数据D1改变为数据D2时,比较数据D1和数据D2; 以及当数据D2大于作为比较结果的数据D1时作为增量起作用的递增器/递减器(9),并且当较小时用作递减器,并且每当循环定时器(7)计数一个波形周期时 ),增加或减少波形定时器(3)中保持的数据D1; 并且相对于用于设置的定时器寄存器(2)的设定值D的变化率(从D1到D2),相对缓慢地改变输出波形的“H”电平周期和“L”电平周期的比率 脉冲宽度调制波形的“H”电平周期和“L”电平周期。
    • 8. 发明授权
    • Controller which uses pulse width and pulse frequency modulated signals
to control a variable
    • 使用脉冲宽度和脉冲频率调制信号控制变量的控制器
    • US5162987A
    • 1992-11-10
    • US635366
    • 1990-12-28
    • Mahesh K. Sambhu
    • Mahesh K. Sambhu
    • G05B11/26
    • G05B11/26
    • A controller is disclosed which uses pulse width ("PWM") and pulse frequency ("PFM") modulated signals to control a variable to a desired value, the PWM and PFM signals generated through calculation of the difference between the variable and the desired value and then by routing either the PWM or the PFM to the final control element or elements, thereby performing the functions of a proportional and integral controller. Derivative action is also disclosed by differentiating the difference, after filtering, and using the relationship between the difference and the differential to determine the routing of the output signal to the final control element or elements.
    • 公开了一种使用脉冲宽度(“PWM”)和脉冲频率(“PFM”)调制信号将变量控制到所需值的控制器,通过计算变量与期望值之间的差异产生的PWM和PFM信号 然后通过将PWM或PFM路由到最终控制元件,从而执行比例和积分控制器的功能。 还通过区分差异,滤波之后,并使用差分和差分之间的关​​系来确定输出信号到最终控制元件的路由来公开衍生作用。