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1. 发明授权

US5043649A Stepping motor unit and rotary control valve incorporating the same 失效
标题翻译：步进电机单元和结合其的旋转控制阀
公开(公告)号：US5043649A
公开(公告)日：1991-08-27
申请号：US456781
申请日：1989-12-28
申请人： Fumiaki Murakami , Masahiko Suzuki , Masatoshi Kuroyanagi , Jirou Asai , Yoshimi Natsume , Akira Takagi , Kiyomitsu Kozawa
发明人： Fumiaki Murakami , Masahiko Suzuki , Masatoshi Kuroyanagi , Jirou Asai , Yoshimi Natsume , Akira Takagi , Kiyomitsu Kozawa
IPC分类号： F16N29/04 , H02K37/22 , H02P8/14
CPC分类号： H02K37/22 , F16N29/04 , H02P8/14
摘要： A stepping motor unit includes a stepping motor of the type wherein the interior of the stepping motor is filled with an oil, a detector for detecting the temperature of the oil in the stepping motor, a device for varying an upper limiting value of the rotational speed of the stepping motor and an upper limiting value of the rotational acceleration of the stepping motor in view of a current viscous condition of the oil based on the temperature detected by the temperature detector, and a driver for driving the stepping motor at a rotational speed and a rotational acceleration which fall in ranges, respectively, not exceeding the upper limiting values. The stepping motor unit thus constructed has rapid and accurate response characteristics and is capable of operating reliably without falling out of step even when the environmental temperature varies in a very wide range. A rotary control valve incorporating such stepping motor unit is also disclosed.
摘要翻译：步进电动机单元包括步进电机，其中步进电机的内部充满油，用于检测步进电机中的油的温度的检测器，用于改变转速的上限值的装置考虑到基于由温度检测器检测到的温度的油的当前粘性状况，步进电动机的旋转加速度的上限值和用于以转速驱动步进电动机的驱动器，以及分别落在范围内的旋转加速度不超过上限值。如此构造的步进电动机单元具有快速且准确的响应特性，即使当环境温度在非常宽的范围内变化时也能够可靠地运行而不会失步。还公开了一种结合了这种步进马达单元的旋转控制阀。

2. 发明授权

US5036263A Piezoelectric actuator driving apparatus 失效
标题翻译：压电致动器驱动装置
公开(公告)号：US5036263A
公开(公告)日：1991-07-30
申请号：US432677
申请日：1989-11-07
申请人： Yasufumi Yamada , Yasutaka Nakamori , Kiyomitsu Kozawa , Yoshimi Natsume
发明人： Yasufumi Yamada , Yasutaka Nakamori , Kiyomitsu Kozawa , Yoshimi Natsume
IPC分类号： H01L41/09 , F02D41/20 , H01L41/04 , H02N2/06
CPC分类号： F02D41/2096 , H01L41/042 , F02D2041/2003
摘要： Disclosed is a piezoelectric actuator driving apparatus in which a piezoelectric element used to operate as an electro-mechanical transducer is suitably charged and discharged so that the piezoelectric element can make a predetermined amount of mechanical displacement. In the apparatus, the energy of electric charge causing expansion of the piezoelectric element is controlled by a plurality of pulse signals. Each of these pulse signals acts to store electric charge having a predetermined amount of energy in a capacitor, so that the amount of electric charge stored in the capacitor increases with the increase in the number of the pulse signals. After the total amount of the energy of the electric charge stored in the capacitor attains a predetermined value sufficient to cause expansion of the piezoelectric element, the electric charge stored in the capacitor is supplied to the piezoelectric element. Thus, even when a high speed response and high energy are demanded for controlling the amount of expansion of the piezoelectric element, this demand can be readily dealt with. On the other hand, when the electric charge stored in the piezoelectric element is discharged, voltages applied to the piezoelectric element and the primary and secondary windings of a transformer are controlled so as to prevent deterioration of the piezoelectric element.
摘要翻译：公开了一种压电致动器驱动装置，其中用作机电换能器的压电元件适当地进行充电和放电，使得压电元件可以进行预定量的机械位移。在该装置中，通过多个脉冲信号来控制导致压电元件膨胀的电荷的能量。这些脉冲信号中的每一个用于在电容器中存储具有预定量的能量的电荷，使得存储在电容器中的电荷量随着脉冲信号数量的增加而增加。在存储在电容器中的电荷的总能量达到足以使压电元件膨胀的预定值之后，存储在电容器中的电荷被提供给压电元件。因此，即使需要高速响应和高能量来控制压电元件的膨胀量时，也可以容易地处理该要求。另一方面，当存储在压电元件中的电荷被放电时，控制施加到压电元件和变压器的初级和次级绕组的电压，以防止压电元件的劣化。

3. 发明授权

US4767959A Method and apparatus for driving capacitive-type load 失效
标题翻译：用于驱动电容式负载的方法和装置
公开(公告)号：US4767959A
公开(公告)日：1988-08-30
申请号：US94738
申请日：1987-09-09
申请人： Yasuyuki Sakakibara , Toshihiko Igashira , Kiyonori Sekiguchi , Masahiro Takigawa , Yoshimi Natsume
发明人： Yasuyuki Sakakibara , Toshihiko Igashira , Kiyonori Sekiguchi , Masahiro Takigawa , Yoshimi Natsume
IPC分类号： H02M3/155 , B06B1/04 , F02D41/20 , F02D41/40 , F02M63/00 , H01L41/04 , H03K3/57 , H01L41/08
CPC分类号： H03K3/57 , F02D41/2096 , H02N2/062 , H02N2/067 , F02D2041/2006 , F02D2041/201 , F02D2041/2031 , F02D2041/2051 , F02D2041/2075 , F02D41/402 , F02M2200/21
摘要： A method and apparatus for driving a capacitive-type load using a direct current power source, a charging circuit connected in series to the load, a discharging circuit connected in parallel to the load, and an electric circuit for controlling the charging and discharging circuits, and wherein at least one of the charging and discharging circuits has a primary coil, and a secondary coil coupled to the primary coil restores energy, generated when the charging or discharging is turned OFF, to the power source. This provides a highly efficient driving by a restoration of energy.
摘要翻译：一种使用直流电源驱动电容型负载的方法和装置，与负载串联连接的充电电路，与负载并联连接的放电电路以及用于控制充电和放电电路的电路，并且其中所述充电和放电电路中的至少一个具有初级线圈，并且耦合到所述初级线圈的次级线圈将所述充电或放电关断时产生的能量恢复到所述电源。这通过恢复能量提供了高效的驾驶。

4. 发明授权

US4749897A Driving device for piezoelectric element 失效
标题翻译：压电元件驱动装置
公开(公告)号：US4749897A
公开(公告)日：1988-06-07
申请号：US24514
申请日：1987-03-11
申请人： Yoshimi Natsume , Yasufumi Yamada , Yasutaka Nakamori , Yasuyuki Sakakibara
发明人： Yoshimi Natsume , Yasufumi Yamada , Yasutaka Nakamori , Yasuyuki Sakakibara
IPC分类号： F02D41/20 , H01L41/04 , H01L41/08
CPC分类号： F02D41/2096 , H02N2/067 , F02D2041/2003 , F02D2041/2013 , F02D2041/2058
摘要： A driving device for a piezoelectric element for electrically driving a piezoelectric element to obtain a predetermined mechanical displacement, the piezoelectric element driving device being provided with a transformer having a primary winding and a secondary winding, the secondary winding being connected to the piezoelectric element; a switching element connected to the primary winding and controlling the amount of energy stored in an air-gap of the core of the transformer; and an energy control means for driving the switching element so that the amount of energy stored in the air-gap of the core of the transformer becomes a set value, the displacement of the piezoelectric element being controlled by the amount of energy stored in the air-gap of the core of the transformer.
摘要翻译：一种用于电驱动压电元件以获得预定机械位移的压电元件的驱动装置，所述压电元件驱动装置设置有具有初级绕组和次级绕组的变压器，所述次级绕组连接到所述压电元件; 连接到所述初级绕组并控制存储在所述变压器的磁芯的气隙中的能量的开关元件; 以及用于驱动开关元件的能量控制装置，使得存储在变压器的磁芯的气隙中的能量的量成为设定值，压电元件的位移由存储在空气中的能量的量来控制变压器核心的差距。

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