IGBT vs MOSFET
MOSFET (Hloov Oxide Semiconductor Field Effect Transistor) thiab IGBT (Insulated Gate Bipolar Transistor) yog ob hom transistors, thiab ob qho tib si ntawm lawv yog nyob rau hauv lub rooj vag tsav. Ob lub cuab yeej muaj cov qauv zoo sib xws nrog ntau hom semiconductor txheej.
Metal Oxide Semiconductor Field Effect Transistor (MOSFET)
MOSFET yog hom Field Effect Transistor (FET), uas yog ua los ntawm peb lub davhlau ya nyob twg hu ua 'Gate', 'Source' thiab 'Drain'. Ntawm no, ntws tam sim no yog tswj los ntawm lub rooj vag voltage. Yog li, MOSFETs yog cov khoom siv hluav taws xob tswj hluav taws xob.
MOSFETs muaj nyob rau hauv plaub yam sib txawv, xws li n channel lossis p channel, nrog rau hauv kev txo qis lossis kev txhim kho. Cov dej ntws thiab qhov chaw yog ua los ntawm n hom semiconductor rau n channel MOSFETs, thiab zoo ib yam rau p channel li. Lub rooj vag yog ua los ntawm cov hlau, thiab sib cais los ntawm qhov chaw thiab ntws siv cov hlau oxide. Qhov kev rwb thaiv tsev no ua rau muaj kev siv hluav taws xob tsawg, thiab nws yog qhov zoo dua hauv MOSFET. Yog li ntawd, MOSFET yog siv nyob rau hauv digital CMOS logic, qhov twg p- thiab n-channel MOSFETs yog siv los ua lub tsev thaiv kom txo tau lub zog noj.
Txawm hais tias lub tswv yim ntawm MOSFET tau npaj ntxov heev (hauv xyoo 1925), nws tau xyaum ua hauv xyoo 1959 ntawm Bell labs.
Insulated Gate Bipolar Transistor (IGBT)
IGBT yog ib qho khoom siv semiconductor nrog peb lub davhlau ya nyob twg hu ua 'Emitter', 'Colector' thiab 'Gate'. Nws yog 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 ntawd, 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) tuaj yeem tuav kilowatts ntawm lub zog.
Qhov txawv ntawm IGBT thiab MOSFET
1. Txawm hais tias ob qho tib si IGBT thiab MOSFET yog cov cuab yeej tswj hluav taws xob, IGBT muaj BJT zoo li kev coj ua yam ntxwv.
2. Terminals ntawm IGBT hu ua emitter, collector, thiab rooj vag, whereas MOSFET yog ua los ntawm lub rooj vag, qhov chaw, thiab ntws.
3. IGBTs tau zoo dua hauv kev tuav fais fab ntau dua li MOSFETS
4. IGBT muaj PN junctions, thiab MOSFETs tsis muaj.
5. IGBT muaj qhov qis qis dua rau pem hauv ntej piv rau MOSFET
6. MOSFET muaj keeb kwm ntev piv rau IGBT
