在电压过零点触发或截至可控硅的导通或闭合；有效通断电压；应用稳定可靠；-Triggering voltage zero-crossing point or at the turn-on SCR or closed the effective on-off voltage application of stable and reliable

三相交流变换为直流的仿真案例。通过可控硅控制，六脉冲触发。-Three-phase ac transformation for dc simulation case. Controlled by thyristor, six pulse trigger.