通信电源技术
通信電源技術
통신전원기술
TELECOM POWER TECHNOLOGIES
2009年
4期
14-16
,共3页
晶闸管%触发电路%强脉冲
晶閘管%觸髮電路%彊脈遲
정갑관%촉발전로%강맥충
thyristor%trigger circuit%high power pulse
晶闸管触发电路的作用是产生符合要求的门极触发脉冲,保证晶闸管在需要的时刻由阻断变为导通.为了在寒冷条件下对软起动器的晶闸管可靠触发,针对传统触发电路触发脉冲前端无强脉冲,在传统的触发电路基础上进行了改进.通过改进.使触发脉冲的电流前沿有了强触发脉冲.实验证明,该触发电路满足了实际的需要.
晶閘管觸髮電路的作用是產生符閤要求的門極觸髮脈遲,保證晶閘管在需要的時刻由阻斷變為導通.為瞭在寒冷條件下對軟起動器的晶閘管可靠觸髮,針對傳統觸髮電路觸髮脈遲前耑無彊脈遲,在傳統的觸髮電路基礎上進行瞭改進.通過改進.使觸髮脈遲的電流前沿有瞭彊觸髮脈遲.實驗證明,該觸髮電路滿足瞭實際的需要.
정갑관촉발전로적작용시산생부합요구적문겁촉발맥충,보증정갑관재수요적시각유조단변위도통.위료재한랭조건하대연기동기적정갑관가고촉발,침대전통촉발전로촉발맥충전단무강맥충,재전통적촉발전로기출상진행료개진.통과개진.사촉발맥충적전류전연유료강촉발맥충.실험증명,해촉발전로만족료실제적수요.
The function of trigger circuit for thyristor is to produce trigger impulse to meet the requirements and ensure thyristor turn on while it is needed. In order to trigger the thyristor under cold condition, traditional trigger circuit is im-proved to produce high power pulse in front of the trigger impulse The simulation results show that this trigger circuit meets the actual requirements.