BJT vs IGBT
BJT (Bipolar Junction Transistor) thiab IGBT (Insulated Gate Bipolar Transistor) yog ob hom transistors siv los tswj cov tam sim no. Ob lub cuab yeej muaj PN junctions thiab sib txawv hauv cov khoom siv. Txawm hais tias ob qho tib si yog transistors, lawv muaj qhov sib txawv ntawm cov yam ntxwv.
BJT (Bipolar Junction Transistor)
BJT yog hom transistor uas muaj ob lub PN junctions (ib qho kev sib txuas ua los ntawm kev sib txuas ntawm p hom semiconductor thiab n hom semiconductor). Ob qhov kev sib txuas no yog tsim los ntawm kev sib txuas ntawm peb daim semiconductor hauv kev txiav txim ntawm P-N-P lossis N-P-N. Yog li ob hom BJTs, hu ua PNP thiab NPN, muaj.
Peb lub tshuab hluav taws xob txuas nrog peb qhov chaw semiconductor thiab cov hlau lead nruab nrab hu ua 'puag'. Lwm ob qhov kev sib tshuam yog 'emitter' thiab 'collector'.
Hauv BJT, cov khoom loj loj emitter (Ic) tam sim no yog tswj los ntawm lub hauv paus me me emitter tam sim no (IB), thiab cov cuab yeej no yog siv los tsim amplifiers lossis keyboards. Yog li ntawd, nws tuaj yeem suav tau tias yog lub tshuab tsav tam sim no. BJT feem ntau yog siv hauv amplifier circuits.
IGBT (Insulated Gate Bipolar Transistor)
IGBT yog ib qho khoom siv semiconductor nrog peb lub davhlau ya nyob twg hu ua 'Emitter', 'Colector' thiab 'Gate'. Nws yog ib hom transistor, uas tuaj yeem tswj tau lub zog ntau dua thiab muaj kev hloov pauv siab dua ua rau nws ua haujlwm tau zoo. IGBT tau tshaj tawm rau kev lag luam hauv xyoo 1980s.
IGBT muaj qhov sib xyaw ua ke ntawm MOSFET thiab bipolar junction transistor (BJT). Nws yog rooj vag tsav zoo li MOSFET thiab muaj cov yam ntxwv tam sim no zoo li BJTs. Yog li nws muaj qhov zoo ntawm ob qho tib si siab tam sim no tuav, thiab kev tswj tau yooj yim. IGBT modules (muaj ntau yam khoom siv) tuav kilowatts ntawm lub zog.
Qhov txawv ntawm BJT thiab IGBT
1. BJT yog lub cuab yeej tsav tam sim no, qhov IGBT yog tsav los ntawm lub rooj vag voltage
2. Terminals ntawm IGBT hu ua emitter, collector thiab rooj vag, whereas BJT yog ua los ntawm emitter, collector thiab base.
3. IGBTs tau zoo dua hauv kev tuav fais fab dua li BJT
4. IGBT tuaj yeem suav tias yog kev sib xyaw ntawm BJT thiab FET (Field Effect Transistor)
5. IGBT muaj cov qauv siv yooj yim piv rau BJT
6. BJT muaj keeb kwm ntev piv rau IGBT
