英语翻译4）激发环路的触发和放大电路本系统中采用单独的宽脉冲.关键在于脉冲的宽度必须大于60度,通常持续4MS,以便确保可靠的触发.为了减少脉动转换器的容量,本文选择试用高频脉冲族

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英语翻译
4）激发环路的触发和放大电路
本系统中采用单独的宽脉冲.关键在于脉冲的宽度必须大于60度,通常持续4MS,以便确保可靠的触发.为了减少脉动转换器的容量,本文选择试用高频脉冲族作为输出.此电路的原理叙述如下.触发脉冲由输出信号U1控制,当输出信号是高电平1时,6号与门导通,触发信号通过与门到光电耦合器.在放大之后,信号被加到晶体管的门极.当输出U1为低电平0时,6号与门被关闭.输出脉冲族的前沿将会滞后宽脉冲的前沿,并且影响曲线角度的精确.然后,它会阻碍这样连接的晶体管转向开通.所以一个可控的耦合器用来调制宽脉冲.可控耦合器被U2控制.

Answer 1

Inspire the trigger loop and amplifier circuit
The system used a separate pulse width.The key lies in pulse width must be greater than 60 degrees,usually sustained 4MS,in order to ensure reliable trigger.In order to reduce the capacity of the pulse converter,the paper try to choose family as high-frequency pulse output.The principle of this circuit are described below.Trigger pulse from the output signal U1 control,when the output signal is high 1:00,with the door on the 6th conduction,trigger signals through the door to the optocoupler.After the amplification,the signal has been added to the transistor's gate.When the output U1 low 0:00,on the 6th and the doors were closed.Pulse output will lag behind the forefront of ethnic pulse width of the front,and the exact point of impact curve.Then,it will impede such connections opened transistor shift.Therefore,a controllable couplers used pulse width modulation.Controllable coupler control by U2.
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