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1. 发明授权

US5965038A Control equipment for resistance welding machine 失效
标题翻译：电阻焊机控制设备
公开(公告)号：US5965038A
公开(公告)日：1999-10-12
申请号：US925316
申请日：1997-09-08
申请人： Yoshihito Nomura , Tatsuaki Ambo , Saburou Souma , Chihiro Okado
发明人： Yoshihito Nomura , Tatsuaki Ambo , Saburou Souma , Chihiro Okado
IPC分类号： B23K11/24 , B23K11/25 , H02M7/5387
CPC分类号： B23K11/24 , B23K11/257 , H02M7/53871 , H02M2007/4803
摘要： A control equipment for a resistance welding machine for welding a material by the Joule's heat generated in the material by applying an electric power to the material, including an inverter for converting a DC voltage to an AC voltage by pulse width modulation control, a transformer having a primary winding to which the AC voltage is applied and having a secondary winding which supplies an AC current to the material, and a control unit for generating an AC current reference with a rectangular waveform of a specified frequency, comparing the AC current reference with an output current of the inverter to obtain an error, and for PWM controlling the inverter so that the error becomes zero.
摘要翻译：一种用于电阻焊接机的控制设备，用于通过向材料施加电力，通过在材料中产生的焦耳热量来焊接材料，该逆变器包括用于通过脉宽调制控制将直流电压转换为交流电压的逆变器，具有施加有交流电压并具有向所述材料提供交流电流的次级绕组的初级绕组，以及用于产生具有指定频率的矩形波形的交流电流基准的控制单元，将所述交流电流基准与逆变器的输出电流以获得误差，并且用于PWM控制逆变器，使得误差变为零。

2. 发明授权

US5844193A Control equipment for resistance welding machine 失效
标题翻译：电阻焊机控制设备
公开(公告)号：US5844193A
公开(公告)日：1998-12-01
申请号：US452338
申请日：1995-05-26
申请人： Yoshihito Nomura , Tatsuaki Ambo , Saburo Souma , Chihiro Okado
发明人： Yoshihito Nomura , Tatsuaki Ambo , Saburo Souma , Chihiro Okado
IPC分类号： B23K11/24 , B23K11/25 , H02M7/5387
CPC分类号： B23K11/24 , B23K11/257 , H02M7/53871 , H02M2007/4803
摘要： A control equipment for a resistance welding machine for welding a material by the Joule heat generated in the material by applying an electric power to the material, including an inverter for converting a DC voltage to an AC voltage by pulse width modulation control, a transformer having a primary winding to which the AC voltage is applied and having a secondary winding which supplies an AC current to the material, and a control unit for generating an AC current reference with a rectangular waveform of a specified frequency, comparing the AC current reference with an output current of the inverter to obtain an error, and for PWM controlling the inverter so that the error becomes zero.
摘要翻译：一种用于电阻焊接机的控制设备，用于通过向材料施加电力而通过材料中产生的焦耳热来焊接材料，该逆变器包括用于通过脉冲宽度调制控制将直流电压转换为交流电压的逆变器，具有施加有交流电压并具有向所述材料提供交流电流的次级绕组的初级绕组，以及用于产生具有指定频率的矩形波形的交流电流基准的控制单元，将所述交流电流基准与逆变器的输出电流以获得误差，并且用于PWM控制逆变器，使得误差变为零。

3. 发明授权

US4646222A Inverter provided with an overvoltage clamping circuit 失效
标题翻译：变频器配有过压钳位电路
公开(公告)号：US4646222A
公开(公告)日：1987-02-24
申请号：US817173
申请日：1986-01-09
申请人： Chihiro Okado , Kazushi Ichimura , Tatsuaki Ambo
发明人： Chihiro Okado , Kazushi Ichimura , Tatsuaki Ambo
IPC分类号： H02M7/5387 , H02H7/122
CPC分类号： H02M7/5387 , Y02B70/1441
摘要： Three-phase outputs of a voltage source inverter are supplied to AC input terminals of a diode bridge through reactors, respectively, and its DC outputs are clamped by a voltage of a first DC power source. The AC input terminals of the diode bridge are further connected to AC input terminals of a second diode bridge through capacitors, and its DC outputs are clamped by a second DC power source.
摘要翻译：电压源逆变器的三相输出分别通过电抗器提供给二极管桥的交流输入端，其直流输出由第一直流电源的电压钳位。二极管桥的交流输入端子通过电容器进一步连接到第二二极管桥的交流输入端，其直流输出由第二直流电源钳位。

4. 发明授权

US5446365A Method and apparatus for controlling a battery car 失效
标题翻译：用于控制电池车的方法和装置
公开(公告)号：US5446365A
公开(公告)日：1995-08-29
申请号：US62569
申请日：1993-05-18
申请人： Yoshihito Nomura , Koji Endo , Chihiro Okado
发明人： Yoshihito Nomura , Koji Endo , Chihiro Okado
IPC分类号： B60L7/10 , B60L1/08 , B60L7/12 , B60L11/00 , B60L11/18 , H02J7/00
CPC分类号： B60L7/12 , B60L11/005 , B60L11/1805 , Y02T10/7005 , Y02T10/7022 , Y02T10/92 , Y10S320/34
摘要： A method of controlling a battery car in which a motor is driven by a battery and the battery is charged with regeneration power generated by deceleration torque comprises the steps of charging a large-capacitance capacitor connected in parallel with the battery and the motor while restricting a current flowing from the battery to the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is lower than a first voltage, charging the battery to a preset voltage while restricting a current flowing from the large-capacitance capacitor to the battery, when a charging voltage of the large-capacitance capacitor is increased above a predetermined voltage by the regeneration power, and driving the motor with only the charge stored in the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is at least a second voltage.
摘要翻译：一种控制电池车的方法，其中电动机由电池驱动，并且电池对由减速转矩产生的再生电力进行充电，包括以下步骤：对与电池和电动机并联连接的大容量电容器进行充电，同时限制当大电容电容器的电压低于第一电压时，从电池流向大容量电容器的电流，在限制从大容量电容器流到电池的电流的同时将电池充电到预设电压，当大电容电容器的充电电压通过再生功率增加到高于预定电压时，并且仅在大电容电容器中存储电荷驱动电动机时，当大电容电容器的电压至少为第二电压。

5. 发明授权

US4721869A Protection circuit for an insulated gate bipolar transistor utilizing a two-step turn off 失效
标题翻译：采用两步关断的绝缘栅双极型晶体管的保护电路
公开(公告)号：US4721869A
公开(公告)日：1988-01-26
申请号：US826771
申请日：1986-02-06
申请人： Chihiro Okado
发明人： Chihiro Okado
IPC分类号： H01L29/00 , H03K17/082 , H03K17/08 , H03K17/28
CPC分类号： H03K17/0828
摘要： A driving circuit for an insulated gate bipolar transistor (IGBT) which has a power source, a gate voltage input circuit which supplies the voltage to a gate terminal of IGBT, a detecting circuit for detecting a collector to emitter voltage of the IGBT and an adjusting circuit for lowering the control signal.When an abnormality is detected by the detecting circuit, the adjusting circuit performs a dropping operation of the gate voltage of the IGBT immediately after the detection or after the passage of a predetermined time following the application of the ON signal to the gate.
摘要翻译：一种用于绝缘栅双极晶体管（IGBT）的驱动电路，其具有电源，向IGBT的栅极端提供电压的栅极电压输入电路，用于检测IGBT的集电极 - 发射极电压的检测电路和调整降低控制信号的电路。当通过检测电路检测到异常时，调节电路在检测之后立即执行IGBT的栅极电压的下降操作，或者在将ON信号施加到栅极之后经过预定时间后进行。

6. 发明授权

US4314189A Device for controlling the commutating angle of an inverter device 失效
标题翻译：用于控制逆变器装置的换向角的装置
公开(公告)号：US4314189A
公开(公告)日：1982-02-02
申请号：US100561
申请日：1979-12-05
申请人： Chihiro Okado , Takashi Morishita , Koki Hasegawa
发明人： Chihiro Okado , Takashi Morishita , Koki Hasegawa
IPC分类号： H02P23/00 , H02M7/515 , H02P1/26
CPC分类号： H02P27/06 , H02P23/08 , H02P25/26 , H02P21/09 , H02P2201/13
摘要： In a separate excitation type inverter device in which an A.C. power source is used as a commutating source, the inverter device is controlled so as to maintain a certain predetermined amplitude of the commutating voltage when the voltage of the A.C. power source is dropped or becomes unbalanced.
摘要翻译：在使用交流电源作为换向源的单独的励磁型逆变器装置中，当交流电源的电压下降或变得不平衡时，逆变器装置被控制为保持整流电压的一定的预定幅度。

7. 发明授权

US3965403A Constant power control of a D.C. electric motor for handling cargoes 失效
标题翻译：用于处理货物的直流电动机的恒定功率控制
公开(公告)号：US3965403A
公开(公告)日：1976-06-22
申请号：US500086
申请日：1974-08-23
申请人： Chihiro Okado
发明人： Chihiro Okado
IPC分类号： H02P7/298 , H02P7/34 , H02P7/16
CPC分类号： H02P7/2985 , H02P7/34
摘要： A crane motor control is disclosed which includes a variable D.C. voltage supply in a Ward-Leonard set which is controlled by a load torque signal obtained by sensing the armature current of a motor, magnetic flux in the motor field winding and the rate of change of motor speed. The torque signal controls the variable D.C. voltage supply to keep the motor armature current or the motor field current at a preset constant value upon completion of motor acceleration.
摘要翻译：公开了一种起重机电动机控制装置，其包括Ward-Leonard组中的可变直流电压源，该电力控制装置由通过感测电动机的电枢电流，电动机励磁绕组中的磁通和变化率获得的负载转矩信号控制电机转速。扭矩信号控制可变直流电源，以在电机加速完成后将电机电枢电流或电机励磁电流保持在预设的恒定值。

8. 发明授权

US4719531A Overcurrent protective circuit for modulated-conductivity type MOSFET 失效
标题翻译：用于调制导电型MOSFET的过电流保护电路
公开(公告)号：US4719531A
公开(公告)日：1988-01-12
申请号：US863515
申请日：1986-05-15
申请人： Chihiro Okado , Yoshihiro Yamaguchi , Akio Nakagawa
发明人： Chihiro Okado , Yoshihiro Yamaguchi , Akio Nakagawa
IPC分类号： H02H3/38 , H03K17/08 , H03K17/0812 , H03K17/082 , H03K17/567 , H02H3/24
CPC分类号： H03K17/567 , H03K17/08128 , H03K17/0828 , H01L2924/0002
摘要： An overcurrent protective circuit for a modulated conductivity type MOSFET, i.e., a BIFET, which has a voltage detection circuit for detecting a voltage between the drain and source of the BIFET and a main switching circuit for lowering a voltage between the gate ad source of the BIFET and preventing the failure of the BIFET and delay of turn-on of the BIFET according to the output of the voltage detection circuit. The protective circuit produces a constant time delay before the main switching circuit becomes turned on during the initial turn-on period of the BIFET upon application of an ON-gate signal to the gate of the BIFET. The protection circuit thereby prevents, during the initial turn period of the BIFET, a situation where the main switching circuit is turned on but the BIFET is not turned on. The protective circuit further assures that after detection of an overvoltage across the source and drain of the BIFET as may be caused by a load failure, the BIFET gate is maintained at such a low voltage to assure at most a small current conduction through the BIFET even if a ringing voltage occurs across the BIFET.
摘要翻译：用于调制导电型MOSFET的过电流保护电路，即BIFET，其具有用于检测BIFET的漏极和源极之间的电压的电压检测电路和用于降低BIFET的栅极和源极之间的电压的主开关电路 BIFET，根据电压检测电路的输出，防止BIFET的故障和BIFET的导通延迟。在BIFET的初始接通周期中，当主开关电路在向BIFET的栅极施加导通栅极信号时，保护电路产生恒定的时间延迟。因此，保护电路在BIFET的初始转弯期间防止主开关电路接通但BIFET未导通的情况。保护电路进一步确保在BIFET的源极和漏极两端检测到负载故障可能引起的过电压之后，BIFET栅极保持在这样的低电压，以确保至少通过BIFET的小电流传导，甚至如果BIFET发生振铃电压。

9. 发明授权

US4546422A Control system for a voltage-type inverter 失效
标题翻译：电压式变频器控制系统
公开(公告)号：US4546422A
公开(公告)日：1985-10-08
申请号：US564677
申请日：1983-12-23
申请人： Chihiro Okado
发明人： Chihiro Okado
IPC分类号： H02M7/48 , H02M7/537 , H02M7/5387
CPC分类号： H02M7/537 , H02M7/53875 , H02M2001/385
摘要： In a PWM control system for a voltage-type inverter which comprises a bridge connection of electric valves each comprising a reverse parallel connection of a semiconductor switching element and a diode, the direction of the current through each valve is detected, and variation in the output voltage is compensated in accordance with the result of the detection.
摘要翻译：在用于电压型逆变器的PWM控制系统中，其包括电气阀的桥连接，每个电气阀包括半导体开关元件和二极管的反向并联连接，检测通过每个阀的电流的方向，并且输出的变化电压根据检测结果进行补偿。

10. 发明授权

US4403280A Commutation control device for current type inverters 失效
标题翻译：用于电流型逆变器的换向控制装置
公开(公告)号：US4403280A
公开(公告)日：1983-09-06
申请号：US374746
申请日：1982-05-04
申请人： Chihiro Okado
发明人： Chihiro Okado
IPC分类号： H02M7/515 , H02P13/18 , H02M1/06
CPC分类号： H02M7/5152 , H02M7/515
摘要： In a commutation control device for a current type inverter, a device for detecting voltage of a commutation capacitor and a device for controlling a charging interval of the capacitor are provided. The voltage detecting device includes a comparator, while the charging interval control device includes a timing pulse generator, a circuit for delaying a pulse delivered from a pulse generator, and a timing signal generator which delivers a timing signal adapted to control a discharge interval of the commutation capacitor for restricting the voltage thereof in a predetermined range.
摘要翻译：在用于电流型逆变器的换向控制装置中，提供了用于检测换向电容器的电压的装置和用于控制电容器的充电间隔的装置。电压检测装置包括比较器，而充电间隔控制装置包括定时脉冲发生器，用于延迟从脉冲发生器传送的脉冲的电路，以及定时信号发生器，其传送适于控制脉冲发生器的放电间隔的定时信号用于将其电压限制在预定范围内的换向电容器。

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