【摘要】 在可控硅的实际应用中,经常会遇到可控硅过零触发问题,尤其在三相系统中,这种应用更为常见。本文提出了一种新颖的三相同步过零脉冲发生电路,可以给出6路60°宽的三相同步过零脉冲信号。该脉冲发生电路构思巧妙,易于实现,同时在故障情况下可以方便的实现脉冲封锁。更多还原

【Abstract】 Zero-crossing trigger of SCR is a common problem in the practical application of SCR, especially in three-phrase systems. This paper presents a new circuit for generating three-phrase synchronous zero-crossing pulse. It can provide 6 paths signals each with 60 degree width. This circuit ha an ingenious conception and is easy to be realized. It also can block pulses while circuit breakdown.更多还原