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1. 发明授权

US07750585B2 Asymmetric control system for a sensorless and brushless electric motor 有权
标题翻译：无传感器和无刷电动机的非对称控制系统
公开(公告)号：US07750585B2
公开(公告)日：2010-07-06
申请号：US11916917
申请日：2006-06-07
申请人： Johannes Schwarzkopf
发明人： Johannes Schwarzkopf
IPC分类号： H02P23/12 , H02P1/04
CPC分类号： H02P6/182 , Y10S388/915
摘要： A particularly high level of performance in a sensorless, electronically commutated multiphase electric motor can be achieved, wherein for one full cycle at least, one motor phase is controlled in an asymmetrical manner relative to a further motor phase by controlling a commutation angle of one motor phase by reduction relative to a corresponding commutation angle of the other motor phase. Alternatively or in addition, according to the aforementioned method, at least one motor phase is asymmetrically controlled by reduction by self-reference for a full cycle, a commutation angle being controlled by reduction relative to a preceding or subsequent commutation angle or the size of the intermediate angles between two commutation angles being varied, the reduced commutation angle always being preceded or followed by a measurement angle within which the relevant motor phase is switched at zero current for detecting the rotor position by measuring the counter-electromotive force.
摘要翻译：可以实现无传感器，电子换向多相电动机中特别高水平的性能，其中对于一个整周期，通过控制一个电动机的换向角度，至少一个电动机相位相对于另一个电动机相位以不对称的方式被控制相对于另一个电动机相位的相应换向角相位减小。或者或另外，根据上述方法，至少一个电动机相位是通过在全周期的自身参考值的减小而不对称地控制的，换向角度通过相对于前一个或之后的换向角度的减小来控制，在两个换向角之间的中间角度是变化的，减小的换向角总是在测量角之前或之后，其中相关的电动机相位在零电流下切换，以通过测量反电动势来检测转子位置。

2. 发明申请

US20040052510A1 Apparatus for controlling rotational speed of motor 有权
标题翻译：用于控制电机转速的装置
公开(公告)号：US20040052510A1
公开(公告)日：2004-03-18
申请号：US10243931
申请日：2002-09-16
发明人： Chia-Chang Hsu , Chung-Hsien Lin
IPC分类号： H02P005/06
CPC分类号： H02P6/16 , Y10S388/915 , Y10S388/934
摘要： An apparatus for controlling a rotational speed of a motor, coupled to a sensing unit capable of outputting a sensing signal. The apparatus comprises a controlling unit, coupled to the sensing unit, for outputting a controlling signal according to the sensing signal, wherein the controlling signal is a square wave and has a duty ratio that is determined by the sensing signal; and a driving unit, coupled to the controlling unit, for outputting a driving signal to a motor rotor according to the duty ratio of the controlling signal, wherein the driving signal is a square wave, and the rotational speed of the motor rotor is determined by the duty ratio of the driving signal.
摘要翻译：一种用于控制电动机的转速的装置，其耦合到能够输出感测信号的感测单元。该装置包括耦合到感测单元的控制单元，用于根据感测信号输出控制信号，其中控制信号是方波，具有由感测信号确定的占空比; 以及驱动单元，其耦合到所述控制单元，用于根据所述控制信号的占空比将驱动信号输出到电动机转子，其中所述驱动信号是方波，并且所述电动机转子的转速由驱动信号的占空比。

3. 发明授权

US5375186A Device for speed stabilization of a motor employing phase comparison 失效
标题翻译：使用相位比较的电机的速度稳定装置
公开(公告)号：US5375186A
公开(公告)日：1994-12-20
申请号：US82040
申请日：1993-06-24
申请人： Gerd Schuettpelz
发明人： Gerd Schuettpelz
IPC分类号： G01P3/481 , G01P3/486 , H02P23/18 , H02P5/165
CPC分类号： G01P3/486 , G01P3/481 , H02P23/186 , Y10S388/901 , Y10S388/906 , Y10S388/911 , Y10S388/915
摘要： An apparatus for stabilizing the speed of a motor has a phase comparator that identifies a phase difference between a reference signal and a speed signal. The apparatus acquires the speed of the motor and generates an output signal proportional to the identified phase difference. A controller receives the output signal. A control circuit for the motor is connected to the controller. The phase comparator comprises a sample-and-hold element, a sampling pulse shaper that is connected thereto and is input with the speed signal, a pulse shaper input with the reference signal, and a signal generator connected to the output of the pulse shaper and to the input of the sample-and-hold element.
摘要翻译：用于稳定电动机速度的装置具有识别参考信号和速度信号之间的相位差的相位比较器。该装置获取电动机的速度并产生与所识别的相位差成比例的输出信号。控制器接收输出信号。用于电动机的控制电路连接到控制器。相位比较器包括采样保持元件，连接到其上的采样脉冲整形器，并与速度信号一起输入，具有参考信号的脉冲整形器输入，以及连接到脉冲整形器的输出的信号发生器，以及到采样保持元件的输入。

4. 发明授权

US5261025A Method and apparatus for DC motor speed control 失效
标题翻译：直流电机调速方法及装置
公开(公告)号：US5261025A
公开(公告)日：1993-11-09
申请号：US299049
申请日：1989-01-19
申请人： Stephen F. Post , David Mele
发明人： Stephen F. Post , David Mele
IPC分类号： H02P3/14 , B60L7/12 , B60L11/18 , B60L15/28 , H02P7/28 , H02P7/29 , H02P5/00
CPC分类号： B60L11/1805 , B60L7/12 , H02P7/281 , B60L2200/26 , Y02T10/642 , Y02T10/7005 , Y02T10/7258 , Y10S388/903 , Y10S388/915
摘要： In a preferred embodiment, a high-frequency, pulse-width-modulated, power-transistor, DC motor speed controller having current limiting in both drive and regenerative modes, essentially constant ramping rates regardless of whether or not the operator switches to neutral before changing direction, a simple sequencer which controls the timing of four functions--both drive and regenerative current measuring circuits and both drive and regenerative transistors, a highly effective transistor filter capacitor arrangement, and circuitry in which the level of regenerative current is used as an input to control the current under which the direction relays switch.
摘要翻译：在优选实施例中，一种高频，脉冲宽度调制的功率晶体管，直流电动机速度控制器，其具有驱动和再生模式中的电流限制，基本上恒定的斜坡率，而不管操作员在改变之前是否切换到空档方向，一个控制四个功能的时序的简单的定序器 - 驱动和再生电流测量电路以及驱动和再生晶体管，高效晶体管滤波电容器布置，以及再生电流电平用作输入的电路控制方向继电器开关的电流。

5. 发明授权

US5260634A Constant current driving system for a stepper motor in rotating disk 失效
标题翻译：旋转盘中步进电机的恒流驱动系统
公开(公告)号：US5260634A
公开(公告)日：1993-11-09
申请号：US909617
申请日：1992-07-07
申请人： Hiroshi Tsuyuguchi , Tohro Miura , Naoki Sugeta , Tadashi Terada , Miya Enami
发明人： Hiroshi Tsuyuguchi , Tohro Miura , Naoki Sugeta , Tadashi Terada , Miya Enami
IPC分类号： G11B21/08 , H02P8/12 , H02P8/00
CPC分类号： H02P8/12 , Y10S388/915
摘要： In order to drive the stepper motor of a floppy disk drive with practically constant current in the face of fluctuations in supply voltage fed from a host system, a power control pulse generator circuit is provided which produces a series of power control pulses having a duty ratio dependent upon fluctuating supply voltage. The power control pulses are used for interrupting the excitation of the stepper motor windings during track seek operation. The power control pulses are generated by first repeatedly counting clock pulses from the host system to a predetermined number to provide periodically varying digital data, then translating the digital data into a triangular wave having an amplitude dependent upon the supply voltage, and then comparing the triangular wave with a reference voltage.
摘要翻译：为了在面对从主机系统馈送的电源电压波动的情况下驱动具有几乎恒定电流的软盘驱动器的步进电机，提供了功率控制脉冲发生器电路，其产生一系列具有占空比的功率控制脉冲取决于电源电压波动。功率控制脉冲用于在跟踪寻道操作期间中断步进电机绕组的激励。通过首先将从主机系统的时钟脉冲重复计数到预定数量来产生功率控制脉冲，以提供周期性变化的数字数据，然后将数字数据转换成具有取决于电源电压的幅度的三角波，然后比较三角形波参考电压。

6. 发明授权

US5046123A Error signal detection circuit in a servo control device 失效
标题翻译：伺服控制装置中的误差信号检测电路
公开(公告)号：US5046123A
公开(公告)日：1991-09-03
申请号：US239997
申请日：1988-09-01
申请人： Mamoru Horino
发明人： Mamoru Horino
IPC分类号： G11B15/46 , G11B15/473 , H02P23/00 , H02P29/00
CPC分类号： G11B15/4731 , G11B15/46 , H02P23/186 , Y10S388/901 , Y10S388/91 , Y10S388/912 , Y10S388/915
摘要： An error signal detection circuit in a servo control device comprises a reference signal generation circuit for selectively generating reference signals of different periods, each having a slope which changes from a reference value at a substantially constant gradient, an error detection timing generation circuit for generating timing of detection of an error signal of an object of control, an error signal detection circuit for generating an error signal by detecting the value of a reference signal generated by the reference signal generation circuit at a timing provided by the error detection timing generation circuit, and a slope varying circuit for varying the slope of the reference signal in accordance with the period of the reference signal. By changing the gradient of the slope of the reference signal in accordance with the reference period, the ratio of change of the error signal output to the error can be maintained substantially constant so that the gain of the servo loop can be maintained substantially constant and optimalization of the servo system can thereby be realized.
摘要翻译：伺服控制装置中的误差信号检测电路包括：参考信号产生电路，用于选择性地产生不同周期的参考信号，每个参考信号具有以基本上恒定的梯度从基准值变化的斜率，用于产生定时的误差检测定时产生电路检测对象的误差信号的误差信号检测电路，用于通过在由误差检测定时产生电路提供的定时检测由基准信号发生电路产生的参考信号的值来产生误差信号的误差信号检测电路，以及斜率变化电路，用于根据参考信号的周期来改变参考信号的斜率。通过根据参考周期改变参考信号的斜率的梯度，可以将误差信号的输出与误差的变化比基本上保持不变，使伺服回路的增益保持基本恒定，最优化从而可以实现伺服系统。

7. 发明授权

US4828395A Continuous flow type homogenizer 失效
标题翻译：连续流式均质机
公开(公告)号：US4828395A
公开(公告)日：1989-05-09
申请号：US809094
申请日：1985-12-13
申请人： Tatsuhiko Saito , Hikaru Takabatake , Hiroaki Mori , Masahiro Ida , Takeshi Orii
发明人： Tatsuhiko Saito , Hikaru Takabatake , Hiroaki Mori , Masahiro Ida , Takeshi Orii
IPC分类号： C12M3/08 , C12N1/06
CPC分类号： C12N1/066 , C12M47/06 , Y10S366/601 , Y10S388/903 , Y10S388/907 , Y10S388/915
摘要： There is provided a continuous flow type homogenizer. The homogenizer comprises, a tubular container having at upper end thereof an inlet for introducing tissue to be homogenized and at lower end thereof an outlet for discharging the homogenized tissue, a pestle disposed freely rotatable in the tubular container with a clearance defined between the inner surface of the tubular container and the peripheral surface of the pestle, a rotation shaft driving means connected to a rotation shaft of the pestle, a speed setting means for setting the rotation speed of the pestle, and a speed controlling means for controlling the speed of the rotation shaft with a predetermined speed gradient with respect to a speed value set by the speed setting means. '
摘要翻译：提供连续流式均化器。均质器包括：管状容器，其上端具有用于引入要均匀化的组织的入口，并且在其下端具有用于排出均质化组织的出口，可在管状容器中自由旋转设置的杵，间隔限定在内表面的管状容器和杵的周面，与杵的旋转轴连接的旋转轴驱动装置，用于设定杵的旋转速度的速度设定装置，以及用于控制杵的速度的速度控制装置旋转轴相对于由速度设定装置设定的速度值具有预定的速度梯度。

8. 发明授权

US4823056A Pulse-width modulation drive circuit 失效
标题翻译：脉宽调制驱动电路
公开(公告)号：US4823056A
公开(公告)日：1989-04-18
申请号：US881540
申请日：1986-07-02
申请人： Yoshihiko Watanabe , Tsuneyoshi Nagashita , Susumi Niinuma , Isamu Nomura , Kimito Kobayashi , Akio Namiki , Hiroyuki Abe , Takayuki Iijima , Kazuto Shimokawa , Akira Haeno , Yoshio Aoyagi , Toshiyuki Kimura , Isao Matsumoto
发明人： Yoshihiko Watanabe , Tsuneyoshi Nagashita , Susumi Niinuma , Isamu Nomura , Kimito Kobayashi , Akio Namiki , Hiroyuki Abe , Takayuki Iijima , Kazuto Shimokawa , Akira Haeno , Yoshio Aoyagi , Toshiyuki Kimura , Isao Matsumoto
IPC分类号： H02P7/29 , H02P5/00
CPC分类号： H02P7/29 , H03F2200/33 , Y10S388/91 , Y10S388/915 , Y10S388/916
摘要： A pulse-width modulation drive circuit for a load such as a motor, particularly, a motor used in a compact disc player or the like, in which losses in diodes used to absorb reverse EMF are substantially eliminated. For this purpose, the pulse widths of pulse signals used to on-off control drive current flow through the load are controlled so as to eliminate the diode losses. The circuits of the various embodiments of the invention are designed so as to be easily implemented in integrated circuit form.
摘要翻译：用于诸如电动机的负载的脉冲宽度调制驱动电路，特别是在光盘播放器等中使用的电动机，其中基本上消除了用于吸收反电动势的二极管的损耗。为此，控制用于开关控制驱动电流通过负载的脉冲信号的脉冲宽度，以消除二极管损耗。本发明的各种实施例的电路被设计成易于以集成电路形式实现。

9. 发明授权

US4816723A Variable speed motor control method and apparatus 失效
标题翻译：变速电机控制方法及装置
公开(公告)号：US4816723A
公开(公告)日：1989-03-28
申请号：US176884
申请日：1988-04-04
申请人： Michael B. Shields , Barrett E. Guisinger
发明人： Michael B. Shields , Barrett E. Guisinger
IPC分类号： G11B15/46 , H02P23/00 , H02P29/00 , H02P5/16
CPC分类号： H02P23/186 , Y10S388/901 , Y10S388/908 , Y10S388/912 , Y10S388/915
摘要： A motor control method and apparatus employing a speed control loop and a phase control loop, each of which receives a clock signal (F.sub.-- TACH) indicative of the motor's measured phase and rotational frequency, and a synchronizing clock signal (F.sub.-- SYNC) indicative of the desired motor operating speed control loop generates two analog voltage signals, V.sub.-- TACH and V.sub.-- SYNC, from frequency signals F.sub.-- TACH and F.sub.-- SYNC, and generates an error voltage signal proportional to the difference between these two voltage signals. Each frequency signal is first converted into a binary number signal proportional to the associated motor period (inverse frequency). Each such binary number signal is then converted to an analog voltage signal having magnitude proportional to the motor frequency. Each analog voltage signal is thus produced by a two-step process employing the successive reciprocal (division) elements. The nonlinearities introduced by the successive reciprocal elements substantially cancel so that each analog voltage signal is linear with motor speed. The speed, accuracy, and linearity of this frequency-to-voltage conversion method allows continuously variable speed operation with constant loop parameters and wide loop bandwidth. The phase control loop of the invention includes a ramp generator, and a sample and hold unit. The ramp generator integrates the frequency derived voltage V.sub.-- SYNC. Thus, the ramp's amplitude is constant regardless of variations in the frequency of signal F.sub.-- SYNC, and the phase control loop is adapted for continuously variable speed operation. The ramp voltage is sampled by F.sub.-- TACH, the sampled voltage is amplified and employed as an error signal for controlling the motor phase.
摘要翻译：一种采用速度控制回路和相位控制回路的电动机控制方法和装置，每个控制回路接收指示电动机的测量相位和转速的时钟信号（F-TACH）和指示电动机的同步时钟信号（F-SYNC）所需的电机运行速度控制回路从频率信号F-TACH和F-SYNC产生两个模拟电压信号V-TACH和V-SYNC，并产生与这两个电压信号之间的差成比例的误差电压信号。首先将每个频率信号转换成与相关的电动机周期（反向频率）成比例的二进制数信号。然后将每个这样的二进制数信号转换成具有与电动机频率成比例的幅度的模拟电压信号。因此，通过采用连续倒数（除法）元件的两步法来产生每个模拟电压信号。由连续倒数元件引入的非线性基本上消除，使得每个模拟电压信号与电动机速度成线性关系。该频率到电压转换方法的速度，精度和线性度允许连续变速运行，具有恒定环路参数和宽环路带宽。本发明的相位控制回路包括斜坡发生器和采样保持单元。斜坡发生器集成了频率导出电压V-SYNC。因此，无论信号F-SYNC的频率变化如何，斜坡的振幅都是恒定的，并且相位控制环路适用于连续变速运行。斜坡电压由F-TACH采样，采样电压被放大并用作用于控制电机相位的误差信号。

10. 发明授权

US4804895A Charge balancing current sampler for a digital motor control 失效
标题翻译：用于数字电机控制的充电平衡电流采样器
公开(公告)号：US4804895A
公开(公告)日：1989-02-14
申请号：US81467
申请日：1987-08-04
申请人： John D. Miskin
发明人： John D. Miskin
IPC分类号： G01R19/25 , H02M7/162 , H02P7/285
CPC分类号： G01R19/25 , H02M7/1626 , H02P7/2855 , Y10S388/90 , Y10S388/901 , Y10S388/91 , Y10S388/912 , Y10S388/915 , Y10S388/916 , Y10S388/917 , Y10S388/921
摘要： An analog current sensing circuit is controlled by a current loop microprocessor. An integrator circuit stores charge which is the integral of armature current in a motor. The output is read by the microprocessor and divided by a time value to determine an average value of current. The microprocessor generates a pulse to discharge a capacitor in the integrator circuit to the same extent it was charged by a current feedback signal. At the same time the circuit may be sensing current for the next cycle. Leftover fractions of pulses are stored as charge on the capacitor and are included in values sensed in succeeding cycles. Both a method and a circuit are disclosed.
摘要翻译：模拟电流感测电路由电流环路微处理器控制。积分器电路存储电动机中电枢电流积分的电荷。输出由微处理器读取，除以时间值，以确定电流的平均值。微处理器产生一个脉冲，以使积分器电路中的电容放电至与电流反馈信号充电相同的程度。同时，电路可能会感应下一个周期的电流。脉冲的剩余部分作为电荷存储在电容器上，并且被包括在随后的周期中感测的值中。公开了一种方法和电路。

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