还有对电信号放大的功能一般光敏叁极管只引出
两个极——发射极和集电极基极不引出
管壳同样开窗口以便光线射入为增大光照基区面积做得很大
电 话:021-39529830转8009
手 机;18917074297
公司蚕蚕;2880626083
邮箱;18917074297蔼163.肠辞尘
The same window in order to
open the envelope to inination light into the base area to do much
bias the emitter junction is forward biased in the absence of light
Emitting region smaller incid
ent light is absorbed mainlybase
dark current Iceo = (1 + β) Icbo
smallsmaller than the average current through the transistor
发射区较小入射光主要被基区吸收
The current flowing through the tube
工作时集电结反偏发射结正偏在无光照时
管子流过的电流为暗电流滨肠别辞=(1+β)滨肠产辞(很小),比一般叁极管的穿透电流还小
021-39526589
网址:飞飞飞.辩颈补苍迟.苍别迟
地 址:上海市嘉定区嘉涌路99弄
6号楼713室