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    • 2. 发明授权
    • Chopper control system
    • 斩波控制系统
    • US3914672A
    • 1975-10-21
    • US42057073
    • 1973-11-30
    • HITACHI LTD
    • KIWAKI HISAKATSUONODA YOSHIMITSUIBAMOTO MASAHIKO
    • H02P7/29H02M3/137H02P5/06
    • H02M3/137
    • A chopper is connected in series between a d.c. power supply and a d.c. motor for controlling the speed of the d.c. motor. Means for controlling the chopper comprises a magnetic multivibrator and a magnetic phase shifter driven by the multivibrator. This magnetic phase shifter is of a magnetomotive force comparing type and is composed of a bias winding, a control winding, a feedback winding and an output winding wound around a saturable core. The output of the magnetic multivibrator is differentiated to provide a signal for turning on the chopper and the output of the magnetic phase shifter is differentiated to provide a signal for turning off the chopper.
    • 斩波器在直流电源之间串联连接。 电源和直流 用于控制直流电机速度的电机 发动机。 用于控制斩波器的装置包括由多谐振荡器驱动的磁性多谐振荡器和磁性移相器。 该磁性移相器是磁动势比较型,由偏置绕组,控制绕组,反馈绕组和围绕可饱和磁芯的输出绕组构成。 磁性多谐振荡器的输出被微分以提供用于接通斩波器的信号,并且磁移相器的输出被微分以提供用于关断斩波器的信号。