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公开(公告)号：US4234835A
公开(公告)日：1980-11-18
申请号：US957577
申请日：1978-11-03
申请人： Mitsuharu Ota , Isao Yoshida , Hiromitsu Nakano
发明人： Mitsuharu Ota , Isao Yoshida , Hiromitsu Nakano
CPC分类号： H02P7/2885 , Y10S388/93
摘要： Speed control apparatus for DC motor comprising a current mirror circuit including a first transistor 11 and second transistors 12-14 with their bases connected in common, the collectors of the second transistors 12-14 being in-common connected to one end of the DC motor 9 so as to control the motor current, the bases of the transistors being fed with such base current that saturates the transistors, thereby to raise their maximum controlling torque and starting torque of the DC motor.
摘要翻译： 用于直流电动机的速度控制装置包括电流镜电路，该电流镜电路包括第一晶体管11和第二晶体管12-14，它们的基极共同连接，第二晶体管12-14的集电极共同连接到直流电动机的一端 为了控制电动机电流，晶体管的基极馈送有使晶体管饱和的基极电流，从而提高其最大控制转矩和直流电动机的启动转矩。
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公开(公告)号：US4189666A
公开(公告)日：1980-02-19
申请号：US904984
申请日：1978-05-11
申请人： Yoshio Tetsugu , Hiromitsu Nakano , Hiroshi Minakuchi , Tomio Oyama , Isao Yoshida , Mitsuharu Ota , Kazutsugu Kobayashi
发明人： Yoshio Tetsugu , Hiromitsu Nakano , Hiroshi Minakuchi , Tomio Oyama , Isao Yoshida , Mitsuharu Ota , Kazutsugu Kobayashi
CPC分类号： H02P7/2885 , Y10S388/93 , Y10S388/934
摘要： A speed control system for a d-c electric motor comprising a three-terminal space control IC to provide a constant voltage source having a negative internal resistance equal in absolute value to the internal resistance of the motor and thereby render the motor rotatable at a constant controlled speed. A resistance element having a positive temperature coefficient is used as an external circuit element for the IC so that rotation speed variations relative to load torque variations will be substantially constant despite variations in the ambient temperature.
摘要翻译： 一种用于直流电动机的速度控制系统，其包括三端子空间控制IC，以提供具有与电动机的内部电阻绝对值相等的负内部电阻的恒定电压源，从而使电动机以恒定的控制速度旋转 。 使用具有正温度系数的电阻元件作为用于IC的外部电路元件，使得相对于负载转矩变化的转速变化将随着环境温度的变化而基本恒定。
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公开(公告)号：US4742281A
公开(公告)日：1988-05-03
申请号：US796407
申请日：1985-11-08
申请人： Hiromitsu Nakano , Mitsuru Yamane , Isao Yoshida
发明人： Hiromitsu Nakano , Mitsuru Yamane , Isao Yoshida
CPC分类号： H02P7/2885 , G05F3/30 , H02P7/2805 , Y10S323/901 , Y10S388/91 , Y10S388/934
摘要： A speed control apparatus for a DC motor operable with a low voltage battery has a reference voltage generating circuit capable of operable with a low voltage such as 1 V and is settable for output voltage and for temperature coefficient independently each other and has a differential amplifier which is operable with a very small input voltage and capable of operable with such a low voltage.
摘要翻译： 用于使用低电压电池可操作的直流电动机的速度控制装置具有能够以诸如1V的低电压操作的参考电压产生电路，并且可以独立地设置用于输出电压和温度系数，并且具有差分放大器 可以以非常小的输入电压工作并且能够以这样的低电压工作。
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公开(公告)号：US4477752A
公开(公告)日：1984-10-16
申请号：US353420
申请日：1982-03-01
申请人： Hiromitsu Nakano , Isao Yoshida
发明人： Hiromitsu Nakano , Isao Yoshida
CPC分类号： H02P7/2885 , Y10S388/902 , Y10S388/91
摘要： A speed control apparatus for DC motor (1), comprises a bridge circuit formed by the winding of the motor (1), a resistor (2) series thereto, and two resistors (3 and 4). Therein, a reference voltage (E.sub.r) is produced by dividing a voltage V.sub.ref of a constant voltage circuit (20) by a divider network (21+22). The voltage difference this reference voltage (E.sub.r) and a voltage produced across the detection output terminals "a" and "b" which is proportional to a counter electromotive force (E.sub.a) of the DC motor (1) is amplified by a differential amplifier (23+24). A current mirror circuit is formed by transistors (16), (17) and (18). The first transistor (16) regulated of its collector current (I.sub.r) by a constant current circuit (19) controls collector current of the second transistor (17), which controls input current of the constant voltage circuit (20). The third transistor (18) regulated of its collector current constantly controls the input current to the differential amplifier (23+24) for controlling the transistor (7) to control the motor current.
摘要翻译： 一种用于直流电动机（1）的速度控制装置，包括由电动机（1）的绕组，与其串联的电阻器（2）和两个电阻器（3和4）形成的桥接电路。 其中，通过用恒定电压电路（20）的电压Vref除以分频网络（21 + 22）来产生参考电压（Er）。 与该直流电动机（1）的反电动势（Ea）成比例的检测输出端子“a”，“b”所产生的电压与该参考电压（Er）的电压差由差分放大器 23 + 24）。 电流镜电路由晶体管（16），（17）和（18）形成。 通过恒流电路（19）调节其集电极电流（Ir）的第一晶体管（16）控制控制恒压电路（20）的输入电流的第二晶体管（17）的集电极电流。 调节其集电极电流的第三晶体管（18）恒定地控制到差分放大器（23 + 24）的输入电流，以控制晶体管（7）来控制电动机电流。
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公开(公告)号：US4473856A
公开(公告)日：1984-09-25
申请号：US335358
申请日：1981-12-29
CPC分类号： H02H7/0833
摘要： An overcurrent protection apparatus for a DC motor which can be used with a speed control system of a DC motor to prevent an overcurrent condition arising when the DC motor is run with a heavy load or locked by an overload from burning or overheating windings of the motor. The apparatus is constructed using at least one integrated circuit and includes a current mirror circuit for detecting an overcurrent and for cutting off the supply current of the DC motor. A timing circuit prevents overcurrents lasting only a short time from triggering the apparatus to shut down the motor. Once the apparatus is triggered to shut off the motor, the motor will remain off for an indefinite period of time until the apparatus is reset.
摘要翻译： 一种用于直流电动机的过电流保护装置，其可与直流电动机的速度控制系统一起使用，以防止当直流电动机由重负载运行或被电动机的燃烧或过热绕组过载锁定时产生的过电流条件 。 该装置使用至少一个集成电路构造，并且包括用于检测过电流并用于切断直流电动机的供电电流的电流镜电路。 定时电路可防止持续时间短的过电流触发装置关闭电机。 一旦设备触发关闭电机，电机将保持关闭无限期，直到设备复位为止。
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6.发明授权Motor control apparatus equipped with a controller for controlling rotational position of motor 失效电机控制装置配有控制器，用于控制电机的旋转位置
公开(公告)号：US5760359A
公开(公告)日：1998-06-02
申请号：US687022
申请日：1996-07-25
CPC分类号： G05B19/353 , G01D5/24404 , H02P23/18 , G05B2219/37473 , G05B2219/42104
摘要： In a motor control apparatus for controlling a rotational position of a motor, a rotation detector detects the rotational position of the motor, and outputs first and second detection signals having phases corresponding to a detected rotational position of the motor and different from each other, and a position detecting circuit detects a rotational position in a unit which is less than one cycle of the first and second detection signals based on the first and second detection signals, and outputs a rotational position signal representing a detected rotational position. Further, a motor controller compares the rotational position signal with a reference position signal representing a reference rotational position of the motor to obtain a position error, and controls the rotational position of the motor so that the position error is minimized.
摘要翻译： 在用于控制电动机的旋转位置的电动机控制装置中，旋转检测器检测电动机的旋转位置，并且输出与电动机的检测的旋转位置相对应的相位彼此不同的第一和第二检测信号， 位置检测电路基于第一和第二检测信号检测小于第一和第二检测信号的一个周期的单元中的旋转位置，并输出表示检测到的旋转位置的旋转位置信号。 此外，马达控制器将旋转位置信号与表示马达的基准旋转位置的基准位置信号进行比较以获得位置误差，并且控制马达的旋转位置使得位置误差最小化。
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公开(公告)号：US5122715A
公开(公告)日：1992-06-16
申请号：US391609
申请日：1989-07-19
CPC分类号： H02P6/06 , H02P6/182 , Y02P80/116
摘要： A brushless motor driving device includes a plurality of motor driving coils and a plurality of driving transistors, coupled to the motor driving coils, for periodically supplying an electric power to the motor driving coils. A power supply switching circuit is provided for generating a power supply switching signal for driving the motor driving coils on the basis of a frequency signal corresponding to an oscillation frequency of a voltage controlled oscillator. A phase difference detector is provided for detecting a difference between the power supply switching signal and a counterelectromotive voltage generated in the motor driving coils during a period in which no electric power is supplied to the motor driving coils. The phase difference detected by the phase different detector circuit is used to control the oscillation frequency of the voltage controlled oscillator.
摘要翻译： PCT No.PCT / JP88 / 01169 Sec。 371日期：1989年7月19日 102（e）日期1989年7月19日PCT提交1988年11月18日PCT公布。 第WO89 / 05061号公报。 日本1989年6月1日。无刷电动机驱动装置包括多个电动机驱动线圈和多个驱动晶体管，耦合到电动机驱动线圈，用于周期性地向电动机驱动线圈提供电力。 提供电源切换电路，用于根据与压控振荡器的振荡频率对应的频率信号产生用于驱动电动机驱动线圈的电源切换信号。 提供了一种相位差检测器，用于在电动机驱动线圈没有供电的时段期间检测电源切换信号和在马达驱动线圈中产生的反电动势电压之间的差异。 由相位不同检测器电路检测的相位差用于控制压控振荡器的振荡频率。
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公开(公告)号：USD656119S1
公开(公告)日：2012-03-20
申请号：US29362652
申请日：2010-05-28
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公开(公告)号：USD597519S1
公开(公告)日：2009-08-04
申请号：US29301394
申请日：2008-02-27
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公开(公告)号：US4780651A
公开(公告)日：1988-10-25
申请号：US49212
申请日：1987-05-13
CPC分类号： H02P6/06
摘要： A speed control apparatus for a motor, wherein the counter-electromotive voltage is detected with great precision even when the counter-electromotive voltage to be caused from the motor driving coils is small or the ambient temperature is changed. The voltages corresponding to the detection voltages are turned into speed signals. The emitter resistance of the driving transistor, which is the cause of the torque reduction, can be removed, and uneven rotation, uneven torque is reduced. The speed control apparatus provides a composite voltage of driving coil voltages that are converted by an inversion amplifier. The voltage corresponding to the composite voltage provides the speed signal. This voltage is transferred to the driving coils and precise speed control is produced without a reduction in the controllable maximum torque or the starting torque.
摘要翻译： 一种用于电动机的速度控制装置，其中即使当从电动机驱动线圈引起的反电动势电压较小或环境温度改变时，也以高精度检测反电动势电压。 与检测电压对应的电压变为速度信号。 可以消除作为转矩降低的原因的驱动晶体管的发射极电阻，并且不均匀旋转，不均匀的转矩降低。 速度控制装置提供由反相放大器转换的驱动线圈电压的复合电压。 对应于复合电压的电压提供速度信号。 该电压被传送到驱动线圈，并且在不降低可控最大转矩或起动转矩的情况下产生精确的速度控制。
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