摘要
对直流调速由于脉冲回路故障设备不能运转的具体情况作了分析处理。同步信号 (交流电压 )经比较器输出方波 ,被输入相位控制用 IC。控制用 IC以方波的前沿或后沿点为基点产生锯齿波 ,在锯齿波电压和控制信号的交点产生脉冲 ,控制信号向正方向增大时 。
For DC adjusting speed, the concrete situations which because of the malfunctiont of pluse circuits, the equipments can not run is analysised and treated.The signal of same stemp export square wave by the unit of comparison, the wave is inputted to IC of controlling phase. The IC of controlling phase produce the wave of sawtooth by the front edge or afteredge of square wave. Produce pluse in the point of intersection with the voltage of wave of sawtooth and the signal of controlling. when the signal of controlling augment towards positive direction, the phase of pluse move backwards.
出处
《山西冶金》
CAS
2002年第4期39-41,共3页
Shanxi Metallurgy
关键词
直流调速
脉冲电路
故障处理
相位控制
粗轧机
pluse controll, integrated circuit of controlling phase, pluse output circuit
