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公开(公告)号:US4306283A
公开(公告)日:1981-12-15
申请号:US114688
申请日:1980-01-23
申请人: Hisakatsu Kiwaki , Kyozo Tachibana , Yoshimitsu Onoda , Katsuaki Suzuki , Tatsuo Horie , Yutaka Suzuki , Shozuchi Miura
发明人: Hisakatsu Kiwaki , Kyozo Tachibana , Yoshimitsu Onoda , Katsuaki Suzuki , Tatsuo Horie , Yutaka Suzuki , Shozuchi Miura
CPC分类号: H02J3/1864 , B60L9/12 , H02M7/19 , B60L2200/26 , B60L2210/20 , Y02E40/12 , Y02T10/725
摘要: The two secondary windings of a transformer the primary winding of which is connected to an AC power supply are each provided with a controlled rectifying circuit. The DC sides of the rectifying circuits are connected in series to supply power to DC motors. One of the secondary windings is detachably connected with a capacitor bank. The capacity of the capacitor bank is selected so that the power factor of the converter can be improved to a satisfactory value when the two rectifying circuits are both controlled to produce output voltages. The capacitor bank becomes connected in response to the fact that the current in the primary winding of a transformer has arrived at a predetermined value.
摘要翻译: 其一次绕组连接到交流电源的变压器的两个次级绕组各自设置有可控整流电路。 整流电路的直流侧串联连接,为直流电机供电。 一个次级绕组与电容器组可拆卸地连接。 选择电容器组的容量,使得当两个整流电路都被控制以产生输出电压时,转换器的功率因数可以提高到令人满意的值。 响应于变压器的初级绕组中的电流达到预定值的事实,电容器组变得连接。
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公开(公告)号:US4163191A
公开(公告)日:1979-07-31
申请号:US825042
申请日:1977-08-16
申请人: Hisakatsu Kiwaki , Hiroshi Narita , Hiroshi Sato
发明人: Hisakatsu Kiwaki , Hiroshi Narita , Hiroshi Sato
CPC分类号: H02P3/12
摘要: A magnetic phase shifter control system comprises a magnetic phase shifter for producing an output signal in accordance with a control command at a predetermined amplification degree, a circuit for suppressing the output signal of the magnetic phase shifter to a level lower than a predetermined level on command, and a circuit for reducing the amplification degree of the magnetic phase shifter when the suppressing circuit is operative, whereby a delay for response due to a dead time which the magnetic phase shifter inherently has is eliminated.
摘要翻译: 一种磁性移相器控制系统,包括:磁性移相器,用于根据预定放大度的控制命令产生输出信号;电路,用于将磁性移相器的输出信号抑制在低于预定电平的电平上; 以及用于在抑制电路工作时减小磁性移相器的放大度的电路,从而消除了由于磁性移相器固有地具有的死区时间引起的响应延迟。
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