Series motor control circuit using thyristors energized by direct current
    1.
    发明授权
    Series motor control circuit using thyristors energized by direct current 失效
    使用由直流电源实现的电机的系列电动机控制电路

    公开(公告)号:US3667021A

    公开(公告)日:1972-05-30

    申请号:US3667021D

    申请日:1970-09-11

    Applicant: GEN ELECTRIC

    CPC classification number: H02M3/135 H02M1/06 H02P7/29 Y10S388/919

    Abstract: A commutation control circuit for a motor including a power thyristor and an auxiliary thyristor for switching the power thyristor under control of a variable frequency pulse generator making use of a capacitor for commutation charged by a transformer, the charge on the capacitor being established to be ready for commutation whenever the power thyristor is gated, and the charging current being derived from a direct current source such as a lead/acid storage battery. The circuit specifically uses a positive pulse for causing conduction of the power thyristor and a negative pulse for switching the power thyristor ''''off.

    Abstract translation: 一种用于电动机的换向控制电路,包括功率晶闸管和辅助晶闸管,用于在使用由变压器充电的换向电容器的可变频率脉冲发生器的控制下切换功率晶闸管,建立电容器上的电荷就绪 用于在功率晶闸管选通时进行换向,并且充电电流源自诸如铅酸蓄电池的直流电源。 该电路专门使用正脉冲导致功率晶闸管导通和用于切换功率晶闸管的负脉冲“。

    Direct current control circuit
    3.
    发明授权
    Direct current control circuit 失效
    直流电流控制电路

    公开(公告)号:US3660738A

    公开(公告)日:1972-05-02

    申请号:US3660738D

    申请日:1970-09-21

    Applicant: GEN ELECTRIC

    CPC classification number: H02P3/10 H02M3/137 H02P3/12 H02P7/29

    Abstract: A control circuit for controlling the effective power to a load from a power source of substantially constant direct current voltage includes a first or main solid state switching device for placing the load and the power source in series. Suitable circuitry including a commutating capacitor chargable in a direction such that its discharge will terminate conduction of the main switching device further includes resistive means serving to maintain the capacitor in constant communication with the power source. Also provided is a means for providing dynamic braking of a direct current motor load through a resistive element such that the armature terminal voltage is adjusted linearly with the speed thereof.

    Abstract translation: 用于控制来自基本恒定的直流电压的电源对负载的有效功率的控制电路包括用于串联放置负载和电源的第一或主固态开关装置。 合适的电路包括可以在其放电终止主开关装置的导通的方向上充电的换向电容器,还包括用于维持电容器与电源恒定连通的电阻装置。 还提供了一种用于通过电阻元件提供直流电动机负载的动态制动的装置,使得电枢端子电压以其速度线性调节。

Patent Agency Ranking