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    Magnetic slave gating circuit for full wave phase-controlled thyristor circuits
    68.
    发明授权
    Magnetic slave gating circuit for full wave phase-controlled thyristor circuits 失效
    用于全波控制电路电路的磁性从动点火电路

    公开(公告)号：US3639782A

    公开(公告)日：1972-02-01

    申请号：US3639782D

    申请日：1970-06-01

    Applicant: GEN ELECTRIC

    Inventor： LORD HAROLD W

    IPC: H02M1/08 ,  H03K17/00

    CPC classification number: H02M1/081

    Abstract: A relatively simple magnetic gating circuit for phase-controlled inverse-parallel thyristors has a small error between control and slaved gating pulses. A nonlinear inductor is reset in the phase delay angle before the master SCR conducts and saturates at the same angle in the opposite half cycle to supply gating current to the slave SCR. For a reactive load, this basic circuit provides clipped alternating current gating signals to a saturable gate transformer which selectively supplies gate current to a pair of inverse-parallel high-power thyristors connected for example to a power transformer. A magnetic phase control circuit is shown for the low-power master thyristor. An application is a single phase or polyphase heater control.

    Abstract translation: 用于相位控制的逆并联晶闸管的相对简单的磁选门电路在控制和从动门控脉冲之间具有小的误差。 主控SCR在相反的半周期内以相同的角度导通并饱和，从而在相位延迟角度复位非线性电感器，以向从属SCR提供门控电流。 对于无功负载，该基本电路向可饱和栅极变压器提供限幅交流电门控信号，该可变栅极变压器选择性地将栅极电流提供给例如连接到电力变压器的一对逆并联大功率晶闸管。 为低功率主晶闸管示出了磁相控制电路。 应用是单相或多相加热器控制。

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