公开(公告)号：US6111383A

公开(公告)日：2000-08-29

申请号：US259260

申请日：1999-03-01

申请人： Masanori Sugiyama ,  Chiaki Honma

发明人： Masanori Sugiyama ,  Chiaki Honma

IPC分类号： H02M3/155 ,  H02P7/288 ,  H02P8/14 ,  G05B11/28

CPC分类号： H02P8/14

摘要： A rising saw tooth signal generating circuit generates a rising saw tooth signal having a constant amplitude and a constant period which corresponds to a frequency being slightly higher than the human audible frequency range. The rising saw tooth signal generating circuit also generates a binary signal which generates a reference chopping timing synchronizing with the rising saw tooth signal. The rising saw tooth signal is inverted and a descending saw tooth signal is generated. The descending saw tooth signal is added to the reference current signal and a binary signal is generated by the result of the comparison between the addition signal and the actual current signal. A flip-flop generates a signal which reaches a low level whenever the binary signal is descended and which reaches a high level whenever the reference chopping timing comes. A further binary signal which moves to the high level at the feeding of the current and the signal are supplied to the AND gate. The output signal of the AND gate and the signal is supplied to an AND gate and a binary signal for driving a switching element is obtained.

摘要翻译： 上升的锯齿信号发生电路产生具有恒定振幅和恒定周期的上升锯齿信号，该恒定周期对应于略高于人类可听频率范围的频率。 上升锯齿信号发生电路还产生二进制信号，该二进制信号产生与上升锯齿信号同步的参考斩波定时。 上升的锯齿信号被反转，产生锯齿信号的下降。 下降的锯齿信号被加到参考电流信号中，并且通过加法信号和实际电流信号之间的比较结果产生二进制信号。 触发器产生每当二进制信号下降时达到低电平并且每当参考斩波定时到达时达到高电平的信号。 在馈电电流和信号时移动到高电平的另一个二进制信号被提供给与门。 与门和信号的输出信号被提供给与门，并获得用于驱动开关元件的二进制信号。

公开(公告)号：US6047135A

公开(公告)日：2000-04-04

申请号：US196929

申请日：1998-11-20

申请人： Satoshi Hamada

发明人： Satoshi Hamada

IPC分类号： G03B5/00 ,  G02B7/08 ,  G05B11/28 ,  G05D3/00 ,  G05D3/12 ,  H01L41/04 ,  H02N2/00 ,  G03B17/00

CPC分类号： H02N2/067 ,  G02B7/08 ,  H02N2/025

摘要： A driving device, for driving a compensation lens of a camera, with a feedback control for an actuator therefor in which it is easy to keep a feedback cycle constant. In the feedback control, the feedback cycle is kept constant by counting the number of PWM pulses for driving the actuator. In case that the actuator is of a type in which it is controlled by more than one PWM pulse trains with different phases, one pulse train with predetermined phase is continuously supplied to the actuator even when the actuator is not driven, where the number of pulses in the one pulse train is counted so as to keep the feedback cycle constant. The actuator preferably employs a piezoelectric element which expands and contracts in response to a wave-form pulse included in the PWM pulse train.

摘要翻译： 用于驱动摄像机的补偿透镜的驱动装置，其具有用于其中易于保持反馈周期恒定的致动器的反馈控制。 在反馈控制中，通过对用于驱动执行器的PWM脉冲数进行计数，反馈周期保持不变。 在致动器是由多于一个具有不同相位的PWM脉冲串控制的类型的情况下，一个具有预定相位的脉冲串被连续提供给致动器，即使当致动器未被驱动时，脉冲数 在一个脉冲序列中进行计数，以保持反馈周期不变。 优选地，致动器采用压电元件，其响应包括在PWM脉冲串中的波形脉冲而膨胀和收缩。

公开(公告)号：US5933313A

公开(公告)日：1999-08-03

申请号：US610068

申请日：1996-02-29

申请人： Hideo Furukawa

发明人： Hideo Furukawa

IPC分类号： F16K31/06 ,  G05B11/28 ,  H01H47/00 ,  H01H47/32 ,  H01H47/02

CPC分类号： G05B11/28 ,  H01H47/325 ,  H01H47/002

摘要： A control system for an electronic device such as a solenoid for a vehicle transmission which is controlled by PWM. In the system, a difference (I.sub.H -I.sub.L) between the maximum value and the minimum value of current supplied to the solenoid is calculated and current supplied to the solenoid through a driver circuit is calculated based on the calculated difference and a predetermined coefficient as:I=I.sub.L +(I.sub.H -I.sub.L).times.Kduty.When a solenoid is controlled through PWM, feedback correction of the current flow becomes necessary owing to fluctuation in the voltage of the on-board power supply and fluctuation in the resistance of the electronic device with temperature. Since the instantaneous current in the solenoid varies constantly with the duty ratio, the detected value therefore differs depending on the sampling time point. Prior art smoothing solves the problem, but leads to raise the feedback high, causing overshooting. The arrangement makes it possible to detect the current without smoothing, enhancing the control performance.

摘要翻译： 一种电子装置的控制系统，例如由PWM控制的用于车辆变速器的螺线管。 在该系统中，计算提供给螺线管的电流的最大值和最小值之间的差（IH-IL），并且基于计算出的差和预定系数来计算通过驱动电路提供给螺线管的电流： I = IL +（IH-IL）xKduty.当通过PWM控制螺线管时，由于板上电源的电压波动和电子设备的电阻随温度的波动，电流的反馈校正变得必要 。 由于螺线管中的瞬时电流随占空比不断变化，因此检测值因采样时间点而异。 现有技术的平滑化解决了问题，但是导致反馈高，导致过冲。 该布置使得可以在不平滑的情况下检测电流，从而提高控制性能。

公开(公告)号：US5764016A

公开(公告)日：1998-06-09

申请号：US736627

申请日：1996-10-24

申请人： Arno Bruhn ,  Hans-Herbert Kirste

发明人： Arno Bruhn ,  Hans-Herbert Kirste

IPC分类号： G01D15/24 ,  G05D3/10 ,  G05B11/28

CPC分类号： G01D15/24

摘要： The invention relates to a method for positioning a pen in a recording device for recording the time profile of a measurement signal which can be connected. In order to implement the highest possible mapping accuracy of the measurement signal onto the recording signal at a low cost and with DC isolation between the measurement signal and drive means of the pen, it is proposed that the positioning error (300) be phase-width modulated, the pulse-width-modulated positioning error (400) be transmitted in a floating manner to a signal converter (70), and a control voltage for the electric motor (90) be determined using the signal converter (70) from the pulse-width-modulated positioning error (400) by normalizing the difference between the pulse duration and the pulse-pause duration, via the sum of the pulse duration and the pulse-pause duration.

摘要翻译： 本发明涉及一种将笔定位在记录装置中的方法，用于记录可连接的测量信号的时间曲线。 为了以低成本实现测量信号对记录信号的最高可能的映射精度，并且在测量信号和笔的驱动装置之间具有DC隔离，提出定位误差（300）是相位宽度 脉冲宽度调制定位误差（400）以浮动的方式传送到信号转换器（70），并且使用信号转换器（70）从脉冲确定用于电动机（90）的控制电压 通过脉冲持续时间和脉冲暂停持续时间之和来归一化脉冲持续时间和脉冲暂停持续时间之间的差异来进行宽带调制定位误差（400）。

公开(公告)号：US5706264A

公开(公告)日：1998-01-06

申请号：US412171

申请日：1995-03-28

申请人： Ryo Ando

发明人： Ryo Ando

IPC分类号： G05B11/26 ,  G05B9/02 ,  G05B11/28 ,  G05B11/36 ,  G05B13/02 ,  G05B19/19 ,  G11B7/085 ,  G11B7/09 ,  G11B19/04 ,  G11B19/247 ,  G11B21/10 ,  G11B7/00

CPC分类号： G05B13/024 ,  G05B19/19 ,  G11B19/04 ,  G11B19/247 ,  G11B7/0941 ,  G05B2219/41142 ,  G05B2219/42237 ,  G11B7/08523

摘要： A servo apparatus for which the servo operation remains stable even if the power supply voltages changes, and the control processing load and amount of control data necessary is reduced by setting up gain variation equipment so as to proceed phase compensators, or setting up gain variation equipment so as to proceed selectors, so that the gain set-up at the time of non-loop operations such as focus searches and track jumps etc. can be varied by the gain variation equipment and the extent of variation of the gain variation equipment can be controlled simultaneously for a number of servo systems.

摘要翻译： 即使电源电压变化，伺服动作保持稳定的伺服装置，通过设定增益变动装置，进行相位补偿器，或设定增益变动装置，减少控制处理负荷和必要的控制数据量 以便进行选择器，使得可以通过增益变化设备来改变诸如焦点搜索和轨道跳转等非循环操作时的增益设置，并且增益变化设备的变化程度可以是 同时控制多台伺服系统。

公开(公告)号：US5517099A

公开(公告)日：1996-05-14

申请号：US249329

申请日：1994-05-26

申请人： Magomed K. Magomedov

发明人： Magomed K. Magomedov

IPC分类号： G05B11/28 ,  H02P5/41

CPC分类号： G05B11/28

摘要： Method and apparatus for robust integral-pulse control of servodrives of unknown dynamics. According to the current value of the controlled object position, a microprocessor controller presets the current values of pulse duration and pulse amplitude as functions of the position control or velocity control error. The current value of the pulse period is a function of the sum of (difference between) the current values of orthogonality and robustness parameters when the object moves with acceleration (when the object moves with deceleration). The orthogonality parameter is calculated in proportion to the current value of pulse duration under the condition of orthogonality of the adjacent pulses and the Indeterminacy Principle. The robustness parameter is a function of the current object acceleration/deceleration. Throughout each control period, additional modulations of pulse amplitude and pulse duration are employed whose frequencies are preset by a microprocessor controller for each control period as functions of the controlled object's current acceleration/deceleration and which are limited by these parameters' values in the current and previous control periods calculated as functions of the position control or velocity control error. The modulation steps of the pulse amplitude and pulse duration derived from additional modulation are calculated in proportion to the difference between the current position value of the controlled object and this parameter's value in the previous control period. The microprocessor outputs codes of current values of pulse amplitude, duration and period and transmits them to the amplifier. The pulse sequence is performed and applied to the electromotor.

摘要翻译： 用于强大的积分脉冲控制未知动力学伺服驱动的方法和装置。 根据受控对象位置的当前值，微处理器控制器将脉冲持续时间和脉冲幅度的当前值预设为位置控制或速度控制误差的函数。 脉冲周期的当前值是当物体随加速度移动（当物体减速移动时）的正交性和鲁棒性参数的当前值之间的差值之和的函数。 在相邻脉冲的正交性和不确定性原理的条件下，与脉冲持续时间的当前值成比例地计算正交性参数。 鲁棒性参数是当前对象加速/减速的函数。 在每个控制周期中，采用脉冲幅度和脉冲持续时间的附加调制，其频率由微处理器控制器为每个控制周期预设为受控对象的当前加速/减速的函数，并且受到当前和 先前的控制周期作为位置控制或速度控制误差的函数计算。 根据受控对象的当前位置值与前一个控制周期中的该参数值之间的差异，计算从附加调制得到的脉冲幅度和脉冲持续时间的调制步长。 微处理器输出脉冲幅度，持续时间和周期的当前值的代码，并将其传输到放大器。 执行脉冲序列并将其应用于电动机。

公开(公告)号：US5388984A

公开(公告)日：1995-02-14

申请号：US998047

申请日：1992-12-29

申请人： Alain Meslif

发明人： Alain Meslif

IPC分类号： G01F1/00 ,  F23N1/00 ,  G05D7/00 ,  G05D7/06 ,  F16K31/06 ,  G05B11/28

CPC分类号： G05D7/06 ,  F23N1/005 ,  F23N2035/14 ,  F23N2035/16 ,  Y10T137/0318

摘要： A method of continuously modulating a fluid flow rate by means of an electrically controlled sequential valve, consisting in reciprocating the electrically controlled valve provided in a passageway conveying the fluid towards an apparatus to be fed therewith, between a position opening and a position closing said passageway, the frequency of the displacements towards either one of the valve positions being constant whereas the period of holding of the valve in the other position varies in accordance with the flow rate to be obtained, the method being applicable to the adjustement of the flow rate of a fluid such as a gas for a cooking apparatus for instance.

摘要翻译： 一种通过电控顺序阀连续调节流体流量的方法，该方法包括将设置在将流体传送的通道中的电控阀往往与待供给的装置在位置开口和关闭所述通道 阀位置之间的位移的频率是恒定的，而在另一个位置中的阀的保持期间根据要获得的流量而变化，该方法适用于调整流量 诸如用于烹饪设备的气体的流体。

公开(公告)号：US5349351A

公开(公告)日：1994-09-20

申请号：US940332

申请日：1992-09-03

申请人： Sanshiro Obara ,  Mitsuru Watabe ,  Rika Minami ,  Shigeki Morinaga

发明人： Sanshiro Obara ,  Mitsuru Watabe ,  Rika Minami ,  Shigeki Morinaga

IPC分类号： G01R19/00 ,  G06F15/78 ,  H02M7/48 ,  H03M1/12 ,  G05B11/28

CPC分类号： H03M1/1225

摘要： An analog-digital converting device is designed such that when an operation of converting a special analog signal into a digital signal and an operation of converting another analog signal into a digital signal are instructed concurrently, priority is given to the conversion operation of the special analog signal, The analog-digital converting device includes an analog multiplexer having a main channel and a sub channel, a sample holder, an AD converter, a conversion result register having a plurality of storage areas, and an AD control circuit for controlling the drive of the individual components according to an instruction of a CPU. When the analog signals input to the channels are converted into digital signals in sequence, priority is given to AD conversion of the analog signal input to the main channel over AD conversion of the analog signal input to the sub channel.

摘要翻译： 模拟数字转换装置被设计成当同时指示将特殊模拟信号转换为数字信号的操作和将另一个模拟信号转换为数字信号的操作时，优先考虑特殊模拟信号的转换操作 模拟数字转换装置包括具有主信道和子信道的模拟多路复用器，样本保持器，AD转换器，具有多个存储区域的转换结果寄存器，以及用于控制驱动器的AD控制电路 各个组件根据CPU的指令。 当输入到通道的模拟信号按顺序转换为数字信号时，通过AD转换将模拟信号输入到主通道的模拟信号的AD转换优先给输入到子通道。

公开(公告)号：US5311548A

公开(公告)日：1994-05-10

申请号：US854823

申请日：1992-03-20

申请人： Heinrich Nikolaus

发明人： Heinrich Nikolaus

IPC分类号： G05B11/26 ,  H02M3/156 ,  H02M3/10 ,  G05B11/28 ,  H01F7/18

CPC分类号： H02M3/156 ,  H02M2003/1555

摘要： A digital electronic control apparatus for controlling at least one electronic control element comprises. The apparatus comprises first and second pulse width modulated output signal generators, the frequency of the second signal being different from the first. The second pulse width modulated signal is provided as a function of a digital value determined by at least one of a characteristic and operating condition of the at least one electronic control element. An AND-gate receives the first and second pulse width modulated signals and is capable of producing an output signal for controlling the at least one electronic control element a first and second pulse width modulated signal having a first frequency.

摘要翻译： 一种用于控制至少一个电子控制元件的数字电子控制装置。 该装置包括第一和第二脉冲宽度调制输出信号发生器，第二信号的频率不同于第一信号。 根据由至少一个电子控制元件的特征和操作条件中的至少一个确定的数字值，提供第二脉冲宽度调制信号。 与门接收第一和第二脉冲宽度调制信号，并且能够产生用于控制至少一个电子控制元件的具有第一频率的第一和第二脉冲宽度调制信号的输出信号。

公开(公告)号：US4975628A

公开(公告)日：1990-12-04

申请号：US478899

申请日：1990-02-12

申请人： Joseph J. Lemieux

发明人： Joseph J. Lemieux

IPC分类号： G05B11/28

CPC分类号： G05B11/28

摘要： A closed-loop PWM current control for force motor applications in which temperature induced impedance variations are compensated for without adversely affecting the transient response of the control. In generating the force motor PWM duty cycle, the control employs a digital integration of the sampled current error which, in addition to the usual pole, creates a zero which tracks and cancels the force motor pole. As a result, the undesired transient response characteristic associated with the interaction between the filter and force motor poles is avoided. The gain coefficients employed in the filter are chosen in relation to a measure of the force motor temperature so that the cancellation occurs throughout the range of expected temperature variation. Since the force motor is submersed in the transmission fluid, the temperature of the force motor is accurately represented by a measure of the fluid temperature.

摘要翻译： 用于强制电机应用的闭环PWM电流控制，其中温度感应阻抗变化得到补偿，而不会不利地影响控制的瞬态响应。 在产生强制电机PWM占空比时，该控制采用采样电流误差的数字积分，除了通常的极点外，它产生跟踪和取消力马达极点的零点。 结果，避免了与过滤器和力马达极之间的相互作用相关联的不期望的瞬态响应特性。 在滤波器中使用的增益系数是相对于电动机温度的测量来选择的，使得消除发生在预期温度变化的整个范围内。 由于力马达浸没在传动液中，所以力马达的温度由流体温度的测量精确地表示。