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1. 发明授权

US4362976A Driving circuit for DC motor 失效
标题翻译：直流电机驱动电路
公开(公告)号：US4362976A
公开(公告)日：1982-12-07
申请号：US211974
申请日：1980-12-01
申请人： Yoshiki Fujioka , Yutaka Koiwai , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Yutaka Koiwai , Mitsuhiko Hirota
IPC分类号： H02P3/14 , B32B15/08 , H02P7/292 , H02P5/16
CPC分类号： H02P7/293 , Y10S388/902 , Y10S388/917 , Y10S388/921
摘要： Disclosed is a DC motor drive circuit adapted to prevent thyristor commutation failure when a thyristor-controlled three-phase full-wave reversible bridge undergoes a transition in operating mode from a power inversion mode to a power rectification mode. The drive circuit includes a thyristor-controlled three-phase full-wave reversible bridge whose firing phase is controlled in accordance with a speed deviation between the actual speed of a DC motor and a command speed, polarity discrimination means for discriminating the polarity of the speed deviation, firing phase narrowing means operable in the power inversion mode to narrow the thyristor firing phase down to a minimum firing phase due to a reversal in the polarity of the speed deviation, detection means for detecting an intermittence in armature current, and blocking means for blocking firing of the three-phase thyristor-controlled inverter for a prescribed period of time when the intermittence of the armature current has been detected, the operation mode of the inverter being changed over from the power inversion mode to the power rectification mode after the lapse of said prescribed time period.
摘要翻译：公开了一种直流电动机驱动电路，其适用于在晶闸管控制的三相全波可逆桥经过工作模式从功率转换模式到功率整流模式的转变时，防止晶闸管换向故障。驱动电路包括一个晶闸管控制的三相全波可逆桥，其起火相位根据直流电动机的实际速度与指令速度之间的速度偏差进行控制;极性鉴别装置，用于鉴别速度极性偏离，点火相位变窄装置，其在功率反转模式下可操作，由于速度偏差的极性反转而将晶闸管起火阶段缩小到最小点火阶段，用于检测电枢电流的间歇的检测装置，以及用于在检测到电枢电流的间歇时，三相晶闸管控制逆变器的停止点火规定的时间段，逆变器的动作模式在经过后从功率反转模式切换到功率整流模式的规定时间段。

2. 发明授权

US4284939A Device for detecting opposite phase and open phase 失效
标题翻译：用于检测相位和开路相位的装置
公开(公告)号：US4284939A
公开(公告)日：1981-08-18
申请号：US76548
申请日：1979-09-18
申请人： Shigeki Kawada , Yoshiki Fujioka , Naoto Ohta , Yutaka Koiwai
发明人： Shigeki Kawada , Yoshiki Fujioka , Naoto Ohta , Yutaka Koiwai
IPC分类号： G01R19/10 , G01R29/18 , G01R31/02 , H02H3/253 , H02H3/34 , H02H11/00 , H02P7/292 , G05B5/00
CPC分类号： H02H11/004 , G01R19/10 , G01R29/18 , G01R31/024 , H02H3/253
摘要： A device for detecting opposite phases and an open phase in an input three-phase voltage for a DC motor, wherein the input three-phase voltage is rectified by a three-phase bridge circuit and supplied to the armature of the DC motor. The input three-phase voltage is supplied to the three-phase bridge circuit when the maximum level is equal to or less than the reference voltage, while the input three-phase voltage is not supplied to the bridge circuit when the maximum level is greater than the reference voltage. In this case, both opposite phases and an open phase can be detected by using a common device. In addition, only two phases, such as U- and W-phases, are used for detecting opposite phases and an open phase no matter how these phases may be generated in any phase such as U-, V- or W-phase of the input three-phase voltage. As a result, the device is small in size, simple in electrical construction and low in cost.
摘要翻译：一种用于在直流电动机的输入三相电压中检测相位相位和开路相位的装置，其中输入三相电压由三相桥式电路整流并提供给直流电动机的电枢。当最大电平等于或小于参考电压时，输入三相电压被提供给三相桥式电路，而当最大电平大于输入三相电压时，输入三相电压不提供给桥式电路参考电压。在这种情况下，可以通过使用公共装置来检测相位相位和开路相位。此外，只有两个相位，如U相和W相，用于检测相位相和开路相位，无论这些相位如何在任何相位中产生，例如U相，V相或W相的任何相位输入三相电压。结果，该装置尺寸小，电气结构简单，成本低。

3. 发明授权

US4588937A Position control apparatus 失效
标题翻译：位置控制装置
公开(公告)号：US4588937A
公开(公告)日：1986-05-13
申请号：US683017
申请日：1984-12-13
申请人： Yoshiki Fujioka , Naoto Ota , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Naoto Ota , Mitsuhiko Hirota
IPC分类号： G05B11/32 , G05B7/02 , G05B19/23 , G05D3/12 , G05D3/20 , G05F1/00
CPC分类号： G05B19/232 , G05D3/20 , G05B2219/41021 , G05B2219/41024
摘要： A position control apparatus has a variable gain-type velocity amplifier (115) provided within a servo control circuit, and a low velocity sensing circuit (114) for sensing a predetermined low velocity of a motor (100) immediately before the motor is stopped. When the rotational velocity of the motor (100) drops to the predetermined low velocity immediately before stoppage during orientation control, the velocity amplifier is changed over in response to a signal from the gain of the low velocity sensing circuit (114), thereby raising servo loop gain.
摘要翻译： PCT No.PCT / JP84 / 00187 Sec。 371日期1984年12月13日 102（e）日期1984年12月13日PCT提交1984年4月13日PCT公布。出版物WO84 / 04182 日期：1984年10月25日。位置控制装置具有设置在伺服控制电路内的可变增益型速度放大器（115）和用于感测电机（100）的预定低速度的低速感测电路（114）马达停止前。当在定向控制期间马达（100）的旋转速度在停止前立即下降到预定的低速时，响应于来自低速感测电路（114）的增益的信号而改变速度放大器，从而提升伺服循环增益。

4. 发明授权

US4581569A AC motor control apparatus 失效
标题翻译：交流电机控制装置
公开(公告)号：US4581569A
公开(公告)日：1986-04-08
申请号：US626861
申请日：1984-06-29
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P23/00 , H02P5/40
CPC分类号： H02P23/0077
摘要： An AC motor control apparatus having a first arithmetic device (3) which calculates an amplitude command based on a difference between the commanded velocity and the actual velocity of the AC motor (1), and delivers the amplitude command and a current command in at least one phase as outputs. Also included is a second arithmetic device (10) which calculates a pulse width command in each phase from the amplitude command and current command from the first arithmetic device (3) and the actual phase current of the AC motor (1). A timer (11) produces as an output, a pulse-width modulated signal in each phase on the basis of the pulse-width command from the second arithmetic device (10), and an inverter (8) drives the AC motor in accordance with the pulse-width modulated signals from the timer (11).
摘要翻译： PCT No.PCT / JP83 / 00395 Sec。 371日期1984年6月29日第 102（e）日期1984年6月29日PCT提交1983年11月2日PCT公布。公开号WO84 / 01865 日期：1984年5月10日。一种具有第一运算装置（3）的交流电动机控制装置，其基于所述指令速度与所述交流电动机（1）的实际速度之间的差来计算振幅指令，并且传送所述振幅指令，在至少一个阶段的当前命令作为输出。还包括第二运算装置（10），其根据来自第一运算装置（3）的振幅指令和电流指令以及AC电动机（1）的实际相电流来计算各相的脉冲宽度指令。根据来自第二运算装置（10）的脉冲宽度指令，定时器（11）根据来自第二运算装置（10）的脉冲宽度指令，产生各相的脉冲宽度调制信号作为输出，逆变器（8）根据来自定时器（11）的脉冲宽度调制信号。

5. 发明授权

US4626762A AC motor control system 失效
标题翻译：交流电机控制系统
公开(公告)号：US4626762A
公开(公告)日：1986-12-02
申请号：US641995
申请日：1984-08-20
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P21/00 , H02P23/08 , H02P27/04 , H02P27/06 , H02P5/40
CPC分类号： H02P23/08
摘要： A method of controlling an AC motor which exhibits a constant torque characteristic at a rotational speed N below a base speed Nb and a constant output characteristic at a rotational speed N above the base speed Nb, comprising the steps of finding a base speed N.sub.L after limiting the output power of the AC motor, N.sub.L being derived from the base speed Nb and the ratio .eta. between maximum output power Pmax.sub.1 and maximum output power Pmax.sub.2 before and after the output power of the AC is limited, respectively, rendering the slip frequency of the AC motor constant until the rotational speed N of the AC motor reaches the base speed N.sub.L, varying the slip frequency in inverse proportion to the rotational speed N for N between N.sub.L and Nb (N.sub.L

6. 发明授权

US4928052A Power supply regenerating circuit 失效
标题翻译：电源再生电路
公开(公告)号：US4928052A
公开(公告)日：1990-05-22
申请号：US274148
申请日：1988-11-09
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P23/06
CPC分类号： H02P23/06
摘要： A power supply regenerating circuit according to the present invention is used in an inductor motor drive circuit which performs motor drive control and regenerative control. The induction motor drive circuit has a parallel circuit including a reverse connected diode (D10) and a resistor (R1) connected between a circuit (C2), which rectifies and then smoothes the induced electromotive force of an induction motor (M) during deceleration, and a bridge circuit (Tr1-Tr6) which effects a conversion into AC power. Regenerative power blocked by the diode (D10) is supplied to the bridge circuit (Tr1-Tr6) as a current limited by the resistor (R1), and the regenerative power is regenerated only during a predetermined interval of a three-phase period.

7. 发明授权

US4499414A AC Motor control method 失效
标题翻译：交流电机控制方式
公开(公告)号：US4499414A
公开(公告)日：1985-02-12
申请号：US438692
申请日：1982-11-02
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P21/00 , H02P23/08 , H02P27/04 , H02P27/06 , H02P5/40
CPC分类号： H02P23/08
摘要： A method of controlling an AC motor which exhibits a constant torque characteristic at a rotational speed N below a base speed Nb and a constant output characteristic at a rotational speed N above the base speed Nb, comprising the steps of finding a base speed N.sub.L after limiting the output power of the AC motor, N.sub.L being derived from the base speed Nb and the ratio .eta. between maximum output power Pmax.sub.1 and maximum output power Pmax.sub.2 before and after the output power of the AC is limited, respectively, rendering the slip frequency of the AC motor constant until the rotational speed N of the AC motor reaches the base speed N.sub.L, varying the slip frequency in inverse proportion to the rotational speed N for N between N.sub.L and Nb (N.sub.L
摘要翻译：一种控制交流电动机的方法，其以低于基本速度Nb的转速N和在基本速度Nb以上的转速N下的恒定输出特性呈现恒定的转矩特性，包括以下步骤：在限制之后找到基本速度NL 交流电动机的输出功率NL从基本速度Nb导出，并且AC输出功率之前和之后的最大输出功率Pmax1和最大输出功率Pmax2之间的比值ηa分别被限制，交流电动机常数直到交流电动机的转速N达到基本速度NL，使转差频率与NL和Nb之间的N的转速N成反比（NL

8. 发明授权

US4837491A Motor velocity control apparatus 失效
标题翻译：电机速度控制装置
公开(公告)号：US4837491A
公开(公告)日：1989-06-06
申请号：US928208
申请日：1986-10-16
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , H02P5/50
CPC分类号： H02P5/50
摘要： A motor velocity control apparatus according to the present invention has at least one of the following is included with a servoamplifier: a current feedback gain changeover circuit; a velocity feedback gain changeover circuit; a velocity loop gain changeover circuit; a changeover circuit for a current loop amplitude and phase table storage circuit. Accordingly, the invention is well-suited for changeover control of a plurality of spindle motors of different ratings in a machine tool.
摘要翻译： PCT No.PCT / JP86 / 00078 Sec。 371日期1986年10月16日第 102（e）日期1986年10月16日PCT提交1986年2月20日PCT公布。公开号WO86 / 05044 日本1986年8月28日。根据本发明的电动机速度控制装置在伺服放大器中包括以下中的至少一个：电流反馈增益转换电路; 速度反馈增益转换电路; 速度环增益转换电路; 用于电流环路幅度和相位表存储电路的转换电路。因此，本发明非常适用于机床中不同额定值的多个主轴电机的切换控制。

9. 发明授权

US4641069A Plural motor changeover control system 失效
标题翻译：多电机切换控制系统
公开(公告)号：US4641069A
公开(公告)日：1987-02-03
申请号：US631559
申请日：1984-07-10
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , G05B19/414 , G05B11/32
CPC分类号： G05B19/4144
摘要： A plural motor changeover control system for using a plurality of motors (1a, 1b), the power outputs of which differ, by successively switching among the motors. A conversion table (32a, 32b) corresponding to a motor designated for operation from among the plurality of motors (1a, 1b) is selected, and an amplitude command is fetched from the selected conversion table, which command corresponds to a velocity error, which is a difference between an actual velocity of the designated motor and a commanded velocity. The amplitude command is applied to the servo control circuit to control the designated motor.
摘要翻译： PCT No.PCT / JP83 / 00408 Sec。 371日期1984年7月10日 102（e）日期1984年7月10日PCT提交1983年11月11日PCT公布。出版物WO84 / 02040 日期：1984年5月24日。多个电动机切换控制系统，其通过在电动机之间连续切换来使用其电力输出不同的多个电动机（1a，1b）。选择与多个电动机（1a，1b）中指定用于操作的电动机对应的转换表（32a，32b），并且从所选转换表中取出振幅指令，该指令对应于速度误差，其中是指定电机的实际速度与指令速度之间的差值。将幅度指令应用于伺服控制电路以控制指定的电机。

10. 发明授权

US4207504A Spindle control system 失效
标题翻译：主轴控制系统
公开(公告)号：US4207504A
公开(公告)日：1980-06-10
申请号：US940334
申请日：1978-09-07
申请人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： B23Q5/20 , B23Q15/00 , B23Q15/26 , G05B19/39 , G05D3/00 , G05D3/12 , H02P3/04 , H02P3/06 , G05B13/00
CPC分类号： G05B19/39 , B23Q15/26 , G05B2219/34388 , G05B2219/37313 , G05B2219/37314 , G05B2219/42104 , G05B2219/45136 , G05B2219/50031
摘要： A speed detector produces a spindle speed signal proportional to the revolving speed of a spindle. A specified position detector provides a specified position signal when the spindle assumes a specified rotational position. A spindle motor speed control unit controls the spindle motor so that the motor speed agrees with a speed command. When spindle orientation is requested, one integrator circuit responds to the specified position signal to integrate the spindle speed signal. The output from the integrator circuit is applied to the speed control unit in place of the speed command.
摘要翻译：速度检测器产生与主轴转速成正比的主轴转速信号。当主轴承受指定的旋转位置时，指定的位置检测器提供指定的位置信号。主轴电机速度控制单元控制主轴电机，使电机转速符合速度指令。当要求主轴定向时，一个积分器电路响应指定的位置信号以整合主轴转速信号。来自积分器电路的输出被代替速度指令应用于速度控制单元。

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