NPN transistor siv rau dab tsi?

1, Lub luag haujlwm tseem ceeb hauv amplifying circuits
Daim ntawv thov ntawm NPN transistors hauv amplifier circuits yog ib qho ntawm lawv cov haujlwm zoo tshaj plaws. Nyob rau hauv ib qho emitter amplifier Circuit Court, lub emitter ntawm NPN transistor tau txais lub teeb liab tsis muaj zog raws li kev tawm tswv yim, thiab tom qab kev hloov pauv tsis muaj zog ntawm lub hauv paus, lub teeb liab tawm suab tau tsim tawm ntawm tus sau. Cov txheej txheem no ua kom lub teeb liab, tso cai rau cov tswv yim tsis muaj zog los tsav cov circuits lossis cov khoom siv tom ntej. Qhov nce siab thiab ruaj khov ntawm NPN transistors ua rau lawv xaiv zoo tshaj plaws rau analog teeb liab amplification, dav siv hauv cov teb xws li suab amplification, RF amplification, thiab instrumentation.
2, Saj zawg zog daim ntawv thov nyob rau hauv hloov tswj
Ntxiv nrog rau nws txoj haujlwm amplification, NPN transistors kuj tau siv los ua cov khoom hloov pauv. Hauv digital circuits, transistors feem ntau ua haujlwm hauv cheeb tsam saturation lossis txiav tawm kom ua tiav kev hloov pauv ntawm lub voj voog. Thaum lub hauv paus voltage nce mus txog ib qho chaw pib, NPN transistor nkag mus rau hauv cheeb tsam saturation, tsim ib txoj kev tsis tshua muaj zog ntawm tus neeg sau thiab cov emitter, thiab lub voj voog ua haujlwm; Ntawm qhov tsis sib xws, thaum lub hauv paus voltage qis dua qhov pib, lub transistor nyob rau hauv cheeb tsam txiav tawm, thiab lub siab tiv thaiv Circuit Court yog tsim los ntawm lub collector thiab emitter, ua rau lub Circuit Court disconnect. Cov yam ntxwv hloov pauv no ua rau NPN transistors dav siv hauv kev tswj lub cev muaj zog, kev tsav tsheb relay, LED teeb pom kev zoo, thiab lwm yam kev siv.
3, Cov khoom tseem ceeb hauv oscillating circuits
Oscillatory circuits yog cov kab hluav taws xob uas tsim cov teeb liab raws sij hawm thiab tau siv dav hauv kev sib txuas lus, ntsuas, thiab tswj. NPN transistors feem ntau yog siv los ua cov lus tawm tswv yim hauv oscillation circuits, tsim cov lus tawm tswv yim tsis zoo los ntawm lawv cov yam ntxwv tsis zoo los tsim cov teeb liab oscillation ruaj khov hauv Circuit Court. Piv txwv li, hauv RC oscillation circuits, NPN transistors tsim cov lus tawm tswv yim nrog cov resistors, capacitors, thiab lwm yam khoom. Los ntawm kev kho qhov tsis sib xws ntawm cov khoom no, oscillation signals ntawm ntau zaus tuaj yeem tsim tawm. Qhov kev hloov pauv no ua rau NPN transistors ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus wireless, teeb liab tsim hluav taws xob, thiab lwm yam khoom siv.
4, Kev pabcuam zoo hauv kev tswj fais fab thiab kev hloov pauv
NPN transistors kuj tseem ua lub luag haujlwm tseem ceeb hauv kev tswj fais fab thiab kev hloov pauv. Los ntawm kev sib txuas nrog lwm cov khoom siv semiconductor xws li diodes, MOSFETs, thiab lwm yam, NPN transistors tuaj yeem ua tiav cov haujlwm xws li kev tswj hluav taws xob, kev txwv tam sim no, thiab lub zog hloov pauv. Piv txwv li, hauv kev hloov hluav taws xob, NPN transistors tau siv los ua cov khoom hloov pauv nrog PWM (Pulse Width Modulation) tswj cov chips kom ua tiav cov kev hloov pauv tau zoo thiab cov khoom siv hluav taws xob ruaj khov. Tsis tas li ntawd, nyob rau hauv linear regulator circuits, NPN transistors kuj tseem siv tau raws li kev tswj cov transistors los tswj kev ruaj ntseg ntawm cov zis voltage los ntawm kev kho lawv lub hauv paus voltage.
5, Dav siv nyob rau hauv kev lag luam tswj thiab automation
Hauv kev tswj hwm kev lag luam thiab automation, NPN transistors kuj tau siv dav. Lawv yog siv nyob rau hauv lub circuits ntawm ntau yam sensors, actuators, controllers, thiab lwm yam khoom siv kom ua tiav cov teeb liab tau, ua, thiab tua. Piv txwv li, hauv kev tswj qhov kub thiab txias, NPN transistors tuaj yeem siv los ua ib feem ntawm qhov ntsuas kub ntawm qhov ntsuas kub los hloov cov teeb liab kub rau hauv hluav taws xob teeb liab rau kev ua haujlwm; Hauv kev tswj lub cev muaj zog, NPN transistors yog siv los ua ib feem ntawm lub voj voog tsav los tswj kev pib, nres, thiab kev tswj ceev ntawm lub cev muaj zog. Cov ntawv thov no tsis tsuas yog txhim kho qib automation thiab kev ua haujlwm ntawm kev tsim khoom, tab sis kuj txo tus nqi thiab kev pheej hmoo ntawm kev cuam tshuam ntawm phau ntawv.
https://www.trrsemicon.com/transistor/to-126-plastic-encapsulate-transistors-13003.html