防爆閃(shan)光(guang)(guang)燈(deng)的(de)(de)(de)電(dian)(dian)路由四部分組成(cheng):振蕩升(sheng)壓(ya)(ya)部分、整流(liu)充電(dian)(dian)部分、電(dian)(dian)壓(ya)(ya)指(zhi)示(shi)部分和(he)脈沖(chong)觸發閃(shan)光(guang)(guang)部分。 當(dang)(dang)電(dian)(dian)源接通(tong)后(hou)，利(li)用晶體管(guan)V1的(de)(de)(de)開關特(te)性，形成(cheng)一(yi)個間(jian)(jian)歇(xie)振蕩，使(shi)T1的(de)(de)(de)初級獲得(de)一(yi)個交(jiao)變(bian)電(dian)(dian)壓(ya)(ya)，經T1升(sheng)壓(ya)(ya)，使(shi)其次(ci)(ci)級獲得(de)大于(yu)300V的(de)(de)(de)交(jiao)變(bian)電(dian)(dian)壓(ya)(ya)。交(jiao)變(bian)電(dian)(dian)壓(ya)(ya)經二極管(guan)D1半波整流(liu)后(hou)變(bian)成(cheng)直流(liu)電(dian)(dian)壓(ya)(ya)，對主電(dian)(dian)容C2和(he)觸發電(dian)(dian)容C3充電(dian)(dian)儲(chu)能。當(dang)(dang)電(dian)(dian)壓(ya)(ya)充至(zhi)額定電(dian)(dian)壓(ya)(ya)的(de)(de)(de)70%左右時(shi)，指(zhi)示(shi)電(dian)(dian)路中(zhong)的(de)(de)(de)氖燈(deng)(Ne)起輝(hui)，指(zhi)示(shi)閃(shan)光(guang)(guang)燈(deng)處(chu)于(yu)正常閃(shan)光(guang)(guang)等待狀態。當(dang)(dang)按下按鈕AN，觸發電(dian)(dian)路(由R3、C3、T2和(he)Xe組成(cheng))產生(sheng)脈沖(chong)電(dian)(dian)壓(ya)(ya)，在T2的(de)(de)(de)次(ci)(ci)級感應(ying)出瞬間(jian)(jian)高壓(ya)(ya)(約(yue)10kV)脈沖(chong)，通(tong)過Xe閃(shan)光(guang)(guang)管(guan)的(de)(de)(de)觸發極使(shi)Xe閃(shan)光(guang)(guang)管(guan)內氮氣電(dian)(dian)離(li)并導通(tong)，電(dian)(dian)容C2上儲(chu)存的(de)(de)(de)電(dian)(dian)能瞬間(jian)(jian)通(tong)過閃(shan)光(guang)(guang)燈(deng)管(guan)放電(dian)(dian)轉(zhuan)化為光(guang)(guang)能，完成(cheng)一(yi)次(ci)(ci)閃(shan)光(guang)(guang)。