Lub zog hluav taws xob semiconductor tsav Circuit Court yog ib qho tseem ceeb ntawm cov kev sib txuas sib txuas, muaj zog, siv rau IGBT tsav tsheb ICs ntxiv rau kev muab cov qib tsav thiab tam sim no, feem ntau nrog kev tiv thaiv tsav, suav nrog kev tiv thaiv luv luv Circuit Court, undervoltage shutdown, Miller clamp, ob-theem kaw. , mos kaw, SRC (slew tus nqi tswj), thiab lwm yam. Cov khoom kuj muaj ntau theem ntawm rwb thaiv tsev kev ua tau zoo.Txawm li cas los xij, raws li kev sib koom ua ke, nws cov pob txiav txim siab qhov siab tshaj plaws ntawm kev siv hluav taws xob, tus tsav tsheb IC tso zis tam sim no tuaj yeem muaj ntau dua 10A nyob rau qee kis, tab sis tseem tsis tuaj yeem ua tau raws li kev xav tau ntawm kev tsav tsheb ntawm cov IGBT tam sim no siab, daim ntawv no yuav tham txog IGBT tsav tsheb. tam sim no thiab tam sim no expansion.
Yuav ua li cas nthuav tus tsav tsheb tam sim no
Thaum tsav tam sim no yuav tsum tau nce, los yog thaum tsav tsheb IGBTs nrog lub siab tam sim no thiab lub rooj vag loj, nws yog ib qho tsim nyog los nthuav qhov tam sim no rau tus tsav tsheb IC.
Kev siv bipolar transistors
Kev tsim qauv zoo tshaj plaws ntawm IGBT lub rooj tsav tsheb yog kom paub txog kev nthuav dav tam sim no los ntawm kev siv cov emitter txuas ntxiv.Cov zis tam sim no ntawm emitter follower transistor yog txiav txim los ntawm DC nce ntawm transistor hFE los yog β thiab lub hauv paus IB tam sim no, thaum tam sim no xav tau tsav IGBT loj dua IB * β, ces tus transistor yuav nkag mus rau hauv linear ua hauj lwm cheeb tsam thiab cov zis. tsav tam sim no tsis txaus, ces qhov kev them nqi thiab tawm ceev ntawm IGBT capacitor yuav qeeb qeeb thiab IGBT poob nce.
Siv MOSFETs
MOSFETs kuj tseem siv tau rau kev nthuav dav ntawm tus neeg tsav tsheb tam sim no, lub Circuit Court feem ntau yog tsim los ntawm PMOS + NMOS, tab sis cov logic theem ntawm cov qauv Circuit Court yog qhov sib txawv ntawm transistor thawb-rub.Kev tsim ntawm lub raj sab saud PMOS qhov chaw txuas nrog lub zog zoo, lub rooj vag qis dua qhov chaw ntawm qhov muab hluav taws xob PMOS rau, thiab tus tsav tsheb IC tso zis feem ntau yog theem siab tig rau, yog li kev siv PMOS + NMOS qauv. tej zaum yuav xav tau ib qho inverter hauv kev tsim.
Nrog bipolar transistors lossis MOSFETs?
(1) Qhov sib txawv ntawm kev ua tau zoo, feem ntau hauv cov ntawv siv hluav taws xob siab, qhov hloov pauv zaus tsis siab heev, yog li qhov kev poob qis yog qhov tseem ceeb, thaum lub transistor muaj qhov zoo dua.Ntau qhov kev tsim hluav taws xob siab tam sim no, xws li hluav taws xob tsheb tsav tsheb, qhov twg cov cua sov dissipation nyuaj thiab kub siab nyob rau hauv cov ntaub ntawv kaw, thaum efficiency tseem ceeb heev thiab transistor circuits yuav xaiv tau.
(2) Cov zis ntawm cov kev daws teeb meem bipolar transistor muaj qhov poob qis los ntawm VCE (sat), cov khoom siv hluav taws xob yuav tsum tau nce ntxiv kom them nyiaj rau lub raj tsav VCE (sat) kom ua tiav lub zog tsav ntawm 15V, thaum cov tshuaj MOSFET tuaj yeem yuav luag ua tiav kev tsheb ciav hlau-rau-rail tso zis.
(3) MOSFET tiv taus voltage, VGS tsuas yog hais txog 20V, uas tej zaum yuav yog ib qho teeb meem uas xav tau kev saib xyuas thaum siv cov khoom siv hluav taws xob zoo thiab tsis zoo.
(4) MOSFETs muaj qhov kub tsis zoo coefficient ntawm Rds (on), thaum cov transistors bipolar muaj qhov zoo kub coefficient, thiab MOSFETs muaj qhov teeb meem thermal runaway thaum sib txuas ua ke.
(5) Yog tias tsav tsheb Si/SiC MOSFETs, qhov kev hloov ceev ntawm bipolar transistors feem ntau qeeb dua li cov khoom tsav MOSFETs, uas yuav tsum tau txiav txim siab siv MOSFETs los txuas rau tam sim no.
(6) Lub zog ntawm cov theem nkag mus rau ESD thiab surge voltage, bipolar transistor PN hlws ris muaj qhov zoo dua piv rau MOS rooj vag oxide.
Bipolar transistors thiab MOSFET cov yam ntxwv tsis zoo ib yam, yuav siv dab tsi lossis koj yuav tsum tau txiav txim siab rau koj tus kheej raws li cov qauv tsim qauv.
Cov lus qhia ceev ceev txog NeoDen
① Tsim los ntawm 2010, 200+ tus neeg ua haujlwm, 8000+ Sq.m.Hoobkas.
② NeoDen khoom: Ntse series PNP tshuab, NeoDen K1830, NeoDen4, NeoDen3V, NeoDen7, NeoDen6, TM220A, TM240A, TM245P, reflow cub IN6, IN12, Solder paste tshuab luam ntawv FP20436, PM.
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⑤ R&D Center: 3 R&D chav haujlwm nrog 25+ tus kws tshaj lij R&D engineers.
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⑦ 30+ kev tswj xyuas zoo thiab kev txhawb nqa engineers, 15+ cov neeg laus muag khoom thoob ntiaj teb, raws sij hawm cov neeg siv khoom teb tsis pub dhau 8 teev, kev daws teeb meem hauv 24 teev.
Post lub sij hawm: May-17-2022