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1. 发明授权

US4350937A Motor speed control device for DC motor 失效
标题翻译：直流电机电机调速装置
公开(公告)号：US4350937A
公开(公告)日：1982-09-21
申请号：US174429
申请日：1980-08-01
申请人： Kiyoshi Miyazaki , Tsuneto Takeuchi , Jinichi Ito , Hiroo Ashibe
发明人： Kiyoshi Miyazaki , Tsuneto Takeuchi , Jinichi Ito , Hiroo Ashibe
IPC分类号： H02P7/288 , H02P5/16
CPC分类号： H02P7/2885 , Y10S388/934
摘要： A motor speed control device for a small DC motor in which the speed of rotation of the motor is maintained stable during ambient temperature changes and changes in the load applied to the motor. A temperature compensation resistor is coupled in series with a voltage divider circuit and the combination thereof coupled across the motor. A motor control circuit is provided having first through fourth control terminals. The first control terminal is coupled to the junction between the temperature compensation resistor and the voltage divider circuit, the second control terminal to the voltage division point, the third control terminal to the junction between the voltage divider circuit and the motor, and the fourth control terminal is coupled to ground. The motor control circuit includes an error detecting circuit having inputs coupled to the first and second control terminals with a voltage reference source coupled in series with the first input terminal to the error detecting circuit. The output of the error detecting circuit drives both shunt transistors coupled between the first and fourth control terminals and a drive transistor means coupled between the first and fourth control terminals.
摘要翻译：一种用于小直流电动机的电动机速度控制装置，其中电动机的转速在环境温度变化和施加到电动机的负载变化时保持稳定。温度补偿电阻器与分压器电路串联耦合，并且其组合耦合在电动机两端。提供具有第一至第四控制端的电动机控制电路。第一控制端子耦合到温度补偿电阻器和分压器电路之间的接点，第二控制端子连接到分压点，第三控制端子连接到分压器电路和电动机之间的连接点，以及第四控制端子终端耦合到地面。马达控制电路包括误差检测电路，其具有与第一和第二控制端子耦合的输入，其具有与第一输入端串联耦合到误差检测电路的电压参考源。误差检测电路的输出驱动耦合在第一和第四控制端之间的分流晶体管和耦合在第一和第四控制端之间的驱动晶体管装置。

2. 发明授权

US4403174A Commutatorless DC motor drive device 失效
标题翻译：无换向直流电机驱动装置
公开(公告)号：US4403174A
公开(公告)日：1983-09-06
申请号：US293060
申请日：1981-08-17
申请人： Kiyoshi Miyazaki , Jinichi Ito
发明人： Kiyoshi Miyazaki , Jinichi Ito
IPC分类号： H02P6/06 , H02P6/08 , H02K29/00
CPC分类号： H02P6/06
摘要： A commutatorless DC motor drive device in which errors due to offset voltages of differential amplifiers used therein are eliminated to thereby cause the rotor to rotate at a stable speed. Double-balance differential amplifier circuits are arranged to receive outputs of corresponding magnetic sensitive elements, such as HALL elements, upon differential input terminals thereof and external control signals upon differential control voltage terminals thereof. The outputs from the magnetic sensitive elements are amplified with an amplification factor determined by the control signals. The control signals have an amplitude determined in accordance with the rotational speed of the rotor. Output circuits control the amount of current fed to the stator coils in accordance with differential outputs of the double-balance differential amplifier circuits.
摘要翻译：在其中消除由于其中使用的差分放大器的失调电压引起的误差的无换向直流电动机驱动装置，从而使转子以稳定的速度旋转。双平衡差分放大器电路被布置成在其差分输入端上接收对应的敏感元件（例如HALL元件）的输出，并在其差分控制电压端子上接收外部控制信号。来自磁敏元件的输出以由控制信号确定的放大系数被放大。控制信号具有根据转子转速确定的振幅。输出电路根据双平衡差分放大器电路的差分输出控制馈送到定子线圈的电流量。

3. 发明授权

US4658190A Reduced ripple drive circuit for a brushless motor 失效
标题翻译：减少无刷电机的纹波驱动电路
公开(公告)号：US4658190A
公开(公告)日：1987-04-14
申请号：US665207
申请日：1984-10-26
申请人： Kiyoshi Miyazaki , Jinichi Ito , Hayato Naito
发明人： Kiyoshi Miyazaki , Jinichi Ito , Hayato Naito
IPC分类号： H02P6/08 , H02P6/10 , H02P6/02
CPC分类号： H02P6/10
摘要： A drive circuit for a three-phase brushless motor in which two Hall detectors are spaced 120.degree. apart in electrical angle near the rotors to detect magnetic flux signals for two phases. Their outputs are summed and inverted to form the third phase signal. The three phase signals drive the respective coils on the stator. The three phase signals are also separately squared and then added to adjust, in a feedback fashion, the current through the Hall detectors, whereby torque ripple is reduced.
摘要翻译：三相无刷电机的驱动电路，其中两个霍尔检测器在转子附近以电角度隔开120°，以检测两相的磁通量信号。它们的输出被相加和反相以形成第三相信号。三相信号驱动定子上的相应线圈。三相信号也被分开平方，然后被加入以以反馈方式调节通过霍尔检测器的电流，从而降低转矩波动。

4. 发明授权

US4011761A Wheel balancer 失效
标题翻译：车轮平衡器
公开(公告)号：US4011761A
公开(公告)日：1977-03-15
申请号：US643251
申请日：1975-12-22
申请人： Jinichi Ito
发明人： Jinichi Ito
IPC分类号： G01M1/04 , G01M1/22 , G01M1/02
CPC分类号： G01M1/045 , G01M1/225
摘要： A wheel balancer comprising a pair of shafts for supporting a rotary shaft for rotatably mounting a wheel having an amount of unbalance to be measured is disclosed. The supporting shafts are located on a circle having a center which is coincided with a movable instantaneous center of vibration of the wheel and held by a pair of spring members such that the supporting shafts are movable in a direction of a tangent touching the above mentioned circle. The amount of unbalance of the wheel is converted into an electrical signal which is supplied through a calculation circuit to a comparison circuit which can detect the position of the instantaneous center of vibration by means of an indicating means movable in proportional to the amount of movement of the instantaneous center of vibration of the wheel.
摘要翻译：公开了一种车轮平衡器，其包括一对轴，用于支撑用于可旋转地安装具有待测量的不平衡量的车轮的旋转轴。支撑轴位于具有中心的圆周上，该中心与车轮的可动瞬时振动中心一致，并被一对弹簧构件保持，使得支撑轴能够在接触上述圆的切线方向上移动。轮的不平衡量被转换成通过计算电路提供的电信号到比较电路，该比较电路可以通过与移动量成比例地移动的指示装置来检测瞬时振动中心的位置轮子的瞬间振动中心。

5. 发明授权

US4188170A Diaphragm pump 失效
标题翻译：隔膜泵
公开(公告)号：US4188170A
公开(公告)日：1980-02-12
申请号：US896151
申请日：1978-04-13
申请人： Jinichi Ito
发明人： Jinichi Ito
IPC分类号： F04B43/067 , F04B9/10
CPC分类号： F04B43/067
摘要： A diaphragm pump includes a pump chamber, a pressure fluid chamber, a diaphragm partitioning the interior of the pump into the pump chamber and the pressure fluid chamber, a cylinder communicating with the pressure fluid chamber, and a plunger reciprocable within the cylinder. The pressure fluid chamber or the cylinder communicates with a pressure fluid reservoir via a pressure regulating valve adapted to open when the pressure in the pressure fluid chamber is too high, and a valve adapted to open before the pressure in the pressure fluid chamber is too low, and to close when the pressure is restored to a given pressure level.
摘要翻译：隔膜泵包括泵室，压力流体室，将泵的内部分隔成泵室和压力流体室的隔膜，与压力流体室连通的气缸和可在气缸内往复运动的柱塞。压力流体室或气缸通过压力调节阀与压力流体储存器连通，该压力调节阀适于在压力流体室中的压力过高时打开;以及适于在压力流体室内的压力过低之前打开的阀门并且当压力恢复到给定的压力水平时关闭。

6. 发明授权

US4977359A Servo motor system requiring a reduced number of signal transmission lines 失效
标题翻译：伺服电机系统需要减少数量的信号传输线路
公开(公告)号：US4977359A
公开(公告)日：1990-12-11
申请号：US440694
申请日：1989-11-24
申请人： Kenji Sawai , Tuneto Takeuchi , Jinichi Ito
发明人： Kenji Sawai , Tuneto Takeuchi , Jinichi Ito
IPC分类号： H02P23/00 , H02P25/02
CPC分类号： H02P23/16 , H02P25/03
摘要： In a servo motor system, consisting of a servo motor unit, a servo driver unit, power transmission lines for supplying electric power from the servo driver unit to the servo motor unit, and signal transmission lines for supplying electric signals from the servo motor unit to the servo driver unit, to the end of reducing the number of the signal transmission lines without requiring any particularly high-speed or high-quality signal transmission lines, the servo motor unit comprises a parallel-serial signal conversion circuit for converting outputs from a pole sensor, a rotary encoder, and an abnormal condition sensor into a single serial signal which is transmitted to the servo driver unit via one of the signal transmission lines. The servo driver unit comprise a serial-parallel signal conversion circuit for separating from the serial signal the aforementioned outputs from the various sensors. By suitable logical combination of the parallel signals, the number of bits required for the transmission of the serial signal can be reduced.
摘要翻译：在伺服电动机系统中，由伺服电动机单元，伺服驱动单元，从伺服驱动单元向伺服电动机单元供给电力的输电线，以及用于从伺服电动机单元提供电信号的信号传输线伺服驱动器单元，在不需要任何特别高速或高质量的信号传输线的情况下减少信号传输线的数量的结束，伺服电动机单元包括并行串行信号转换电路，用于将来自极点的输出传感器，旋转编码器和异常状态传感器组成单个串行信号，经由信号传输线路之一传送到伺服驱动单元。伺服驱动器单元包括串行 - 并行信号转换电路，用于从串行信号中分离出各种传感器的上述输出。通过并行信号的合适的逻辑组合，可以减少发送串行信号所需的位数。

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