Transistor Structure Hom

Crystal transistor yog ua kom ob lub PN junctions ze rau ib leeg ntawm ib qho semiconductor substrate. Ob lub PN junctions faib tag nrho cov semiconductor rau hauv peb qhov chaw, qhov nruab nrab yog thaj chaw hauv paus, thiab ob sab yog thaj chaw emission thiab thaj chaw sau. Txoj kev npaj yog PNP thiab NPN.

Cov electrodes sib raug tau qhia los ntawm peb cheeb tsam, uas yog, puag b emitter e thiab collector c.

PN kev sib tshuam nruab nrab ntawm thaj av xa xov thiab thaj chaw hauv paus yog hu ua kev sib kis, thiab PN kev sib tshuam ntawm cheeb tsam sau thiab cheeb tsam hauv paus yog hu ua kev sib txuas. Lub hauv paus cheeb tsam yog nyias heev, thaum lub emission cheeb tsam yog tuab thiab impurity concentration yog siab. Lub emission cheeb tsam ntawm PNP hom triode "emits" qhov, uas nws txav kev taw qhia yog raws li cov kev taw qhia tam sim no, yog li lub emitter xub nyob rau hauv; Qhov chaw emission ntawm NPN hom triode "emits" electrons dawb, thiab nws txoj kev txav mus los yog rov qab mus rau qhov kev taw qhia tam sim no, yog li lub xub emitter yog sab nraud. Lub emitter xub taw qhia rau kev coj ua ntawm PN kev sib tshuam hauv qab qhov hluav taws xob rau pem hauv ntej. Silicon triode thiab germanium triode muaj PNP hom thiab NPN hom.

Ntim daim ntawv thiab tus pin ID ntawm triode

Cov ntawv ntim khoom siv triode feem ntau suav nrog cov ntim hlau thiab ntim yas. Kev npaj tus pin muaj qee cov cai,

Qhov pom hauv qab yog muab tso rau kom peb tus pins tsim lub vertex ntawm daim duab peb sab isosceles, uas yog ebc ntawm sab laug mus rau sab xis; Rau nruab nrab thiab me fais fab yas triode, ua rau nws lub dav hlau fim nws tus kheej raws li qhia hauv daim duab, thiab muab peb tus pins downward. Tom qab ntawd, ntawm sab laug mus rau sab xis, nws yog Ebc.

Muaj ntau hom siv lead ua triodes ntawm ntau hom hauv Suav teb. Kev npaj ntawm cov pins yog txawv. Rau ib tug triode nrog tsis paub meej tus pin kev npaj nyob rau hauv kev siv, nws yog tsim nyog los ntsuas thiab txiav txim qhov tseeb txoj hauj lwm ntawm txhua tus pin, los yog saib mus rau lub transistor phau ntawv qhia kom meej cov yam ntxwv ntawm lub triode thiab cov kev tsis sib haum xeeb thiab cov ntaub ntawv.