SCONINC變換器SCONI-2300-C27X,出售大秦 DTTC-3F7-2CREVIS,MV-BX37U,0.8M,30 fps,4.65um x 4.65um,U 2.O Board,Mono
CREVIS,MV-CS27U,1.4M,15 fps,4.65um x 4.65um,U 2.O Board,Color
CREVIS,MV-BS27U,1.4M,15 fps,4.65um x 4.65um,U 2.O Board,Mono
CREVIS,MV-CU17U,2M,12 fps,4.4um x 4.4um,U 2.O Board,Color
CREVIS,MV-BU17U,2M,12 fps,4.4um x 4.4um,U 2.O Board,Mono
CREVIS,MV-CW35U,0.4M,60 fps,6.0um x 6.0um,U 2.O,Color
CREVIS,MV-BW35U,0.4M,60 fps,6.0um x 6.0um,U 2.O,Mono
CREVIS,MV-BV30U,0.4M,70 fps,7.4um x 7.4um,U 2.O,Mono
CREVIS,MV-BV20U,0.4M,70 fps,9.9um x 9.9um,U 2.O,Mono
CREVIS,MV-BX30U,0.8M,30 fps,4.65um x 4.65um,U 2.O,Mono
CREVIS,MV-CS30U,1.2M,25 fps,3.75um x 3.75 um,U 2.O,Color
CREVIS,MV-BS30U,1.2M,25 fps,3.75um x 3.75 um,U 2.O,Mono
CREVIS,MV-CS20U,1.4M,15 fps,4.65um x 4.65um,U 2.O,Color
CREVIS,MV-BS20U,1.4M,15 fps,4.65um x 4.65um,U 2.O,Mono
CREVIS,MV-CU10U,2M,12 fps,4.4um x 4.4um,U 2.O,Color
CREVIS,MV-BU10U,2M,12 fps,4.4um x 4.4um,U 2.O,Mono
CREVIS,MV-KV30C,0.4M,484 fps,7.4um x 7.4um,CameraLink,Color
因?yàn)锽G1集電極與BG2基極相連，IC1又是BG2的基極電流Ib2。BG2又把比Ib2（Ib1）放大了β2的集電極電流IC2送回BG1的基極放大。如此循環(huán)放大，直到BGBG2完全導(dǎo)通。實(shí)際這一是“一觸即發(fā)”的，對(duì)可控硅來(lái)說(shuō)，觸發(fā)加入控制極，可控硅立即導(dǎo)通。導(dǎo)通的時(shí)間主要決定于可控硅的性能�？煽毓枰唤�(jīng)觸發(fā)導(dǎo)通后，由于循環(huán)反饋的原因，流入BG1基極的電流已不只是初始的Ib1，而是經(jīng)過(guò)BGBG2放大后的電流（β1*β2*Ib1）這一電流遠(yuǎn)大于Ib1，足以保持BG1的導(dǎo)通。此時(shí)觸發(fā)即使消失，可控硅仍保持導(dǎo)通狀態(tài)只有斷開電源Ea或Ea，使BGBG2中的集電極電流小于維持導(dǎo)通的值時(shí)。中文名電流互感器外文名Currenttransformer簡(jiǎn)稱CT所屬領(lǐng)域能源、