Loog tsam widening nyhuv
Lub hauv paus kev ntsuas qhov txawv txav ntawm bipolar transistors (lossis hu ua lub hauv paus kev hloov pauv nyhuv) yog qhov tshwm sim uas qhov kev ua haujlwm dav ntawm lub hauv paus hloov nrog lub voltage thov.
Qhov dav ntawm PN kev sib tshuam qhov chaw them nyiaj cheeb tsam yog txiav txim siab los ntawm kev thov voltage thiab impurity concentration. Thaum lub transistor yog nyob rau hauv lub xeev ua hauj lwm amplifying, lub emitter junction yog rau pem hauv ntej kev tsis ncaj ncees, tus sau cov kev sib tshuam yog thim rov qab, thiab rov qab kev cuam tshuam qhov voltage VCB yog tus siab. Nrog qhov nce ntawm qhov thim rov qab tsis ncaj ncees hluav taws xob, qhov dav ntawm qhov chaw them nqi thaj tsam ntawm qhov kev sib tsoo nce nce, uas txo cov kev ua haujlwm thaj tsam dav dav. Thaum thim rov qab tsis ncaj ncees voltage txo qis, qhov dav ntawm qhov chaw them nqi thaj tsam ntawm lub pob hluav taws xob tsub zuj zus, uas ua rau cov hauv paus pib thaj tsam dav. nce. Tom qab ntawd Ic ua me dua. Qhov tshwm sim no tau hais tias qhov zoo ntawm qhov dav hauv cheeb tsam hloov pauv nrog qhov siv hluav taws xob tau hu ua qhov ntsuas cheeb tsam dav dav cov qauv kev hloov kho, tseem hu ua Cov nyhuv thaum ntxov.