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COMPANY BRIEF
Ruian Fengsheng Automobile Electrical Equipment factory lies in the large automobile parts production base south of zhejiang Ruian Hantian Industrial zone .It specializes in manufactory all kinds of automobile relays,electronic-flash devices ,sensor series.The company has a batch of excellent employee troop ,advanced equipment and strong capacity of product development and production.The products have been sold to domesitic market and been far sold to europe, Australia ,southeast Asia ,middle -east countries and areas.They have got high praise of domestic and international client . We insist on the service tenet of regarding man as Basic ,Regarding Technology as Forerunner,Seeking Quality for Survival ,Good Severe international competition market ,hope to improve,develop and create resplendence hand in hand .一、普通型闪光灯的基本工作电路普通型闪光灯是指闪光输出弟量是不可调的闪光灯，即闪光灯的标称闪光指数GN为一恒定值。电路由四部分组成：振荡升压部分、整流充电部分、电压指示部分和脉冲触发闪光部分。当电源接通后，利用晶体管V1的开关特性，形成一个间歇振荡，使T1的初级获得一个交变电压，经T1升压，使其次级获得大于300V的交变电压。交变电压经二极管D1半波整流后变成直流电压，对主电容C2和触发电容C3充电储能。当电压充至额定电压的70%左右时，指示电路中凳灯（Ne）起辉，指示闪光灯处于正常闪光等待状态。当按下按钮AN，触发电路（由R3、C3、T2和Xe组成）产生脉冲电压，在T2的次级感应出瞬间高压（约10kV）脉冲，通过Xe闪光管的触发极使Xe闪光管内氮气电离并导通，电容C2上储存的电能瞬间通过闪光灯管放电转化为光能，完成一次闪光。