JXSQ Tshiab thiab Thawj IC chips REG BUCK ADJ 3.5A 8SOPWR TPS54340DDAR electronics Cheebtsam

Vim li cas chips (lossis kev tsim hluav taws xob) siv cov khoom siv hluav taws xob ntau dua li cov khoom siv hluav taws xob?

Semiconductors tau dhau los ua ib feem tseem ceeb ntawm lub neej thiab lawv txoj kev siv yog txhua yam.Yog tsis muaj semiconductors, yuav tsis muaj xov tooj cua, tsis muaj computers, tsis muaj xov tooj, tsis muaj TV, tsis muaj tshuab ntxhua khaub ncaws, tsis muaj video games, thiab yeej tsis muaj 3D luam ntawv, autonomous tsav tsheb, ntse tshuaj, los yog photovoltaics.Kev loj hlob sai ntawm Is Taws Nem ntawm Tej Yam kuj tau ua rau cov khoom siv hluav taws xob ntau dua.

Txawm hais tias kev cia siab rau lub tshuab nqus tsev vacuum (lub tshuab nqus tsev, tseem hu ua electron tubes, tau hloov los ntawm semiconductors vim li cas ntawm tus nqi siab, tsis muaj zog, qhov loj me, thiab kev ua haujlwm tsawg, nrog cov electrodes thiab filaments hauv cov khoom siv hluav taws xob), ntau cov khoom siv hluav taws xob tau siv. tsim.Saib rov qab rau hnub ntawm lub tshuab nqus tsev, TVs, phonographs, thiab xov tooj cua txhua tus muaj lub tshuab nqus tsev vacuum uas xav tau ob peb feeb ntawm kev sov so txhua zaus lawv tau siv thiab tsis ruaj khov heev.Tshaj li 60 xyoo dhau los, semiconductor thev naus laus zis tau tso cai rau cov khoom siv kom nrawm dua, me dua, thiab ruaj khov dua.

Yog li vim li cas thiaj siv semiconductors los ua cov khoom siv hluav taws xob no, tsis yog cov khoom siv hluav taws xob?

Dab tsi yog semiconductors?Ib qho semiconductor yog cov khoom siv hluav taws xob ntawm tus neeg xyuas pib (feem ntau yog hlau) thiab insulator (feem ntau yog ceramic).Semiconductors tuaj yeem yog cov khoom ntshiab (silicon lossis germanium) lossis cov khoom sib txuas (gallium arsenide lossis cadmium selenide).Nyob rau hauv tus txheej txheem ntawm doping, me me ntawm impurities yog ntxiv rau cov ntshiab semiconductor, uas ua rau ib tug tseem ceeb hloov nyob rau hauv hluav taws xob conductivity ntawm cov khoom.

Cov khoom siv hluav taws xob feem ntau yog tsim los ntawm transistors, uas ua haujlwm xws li amplification, oscillators, thiab arithmetic, uas yog tag nrho ua los ntawm semiconductors.

Yog li vim li cas semiconductors thiab tsis conductors?

Vim tias cov khoom siv hluav taws xob muaj ntau yam ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob tsuas muaj cov hluav taws xob siab heev, uas tsis tas yuav tsum muaj nyob hauv lub neej txhua hnub.Nrog semiconductors thiab tsim nyog doping, cov conductivity tuaj yeem hloov tau raws li qhov xav tau.Nyob rau tib lub sijhawm, nws tsis tuaj yeem ua rau dope conductors, qhov kev tswj tsis tau ntawm qhov uas ua rau nws tsis tuaj yeem ua tiav raws nraim qhov xav tau (xav txog tias cov neeg siv hluav taws xob muaj ntau tus nqi thauj khoom thiab doping tsis muaj txiaj ntsig).

Piv txwv tias cov ntsiab lus A thiab B hauv ib lub voj voog txuas nrog tus neeg xyuas pib, yuav muaj qhov hluav taws xob ntawm lawv thiab tam sim no yuav ntws ntawm ob lub ntsiab lus;tsis muaj txoj hauv kev los tswj qhov ntws ntawm tam sim no.Piv txwv li, yog tias cov ntsiab lus A thiab B txuas nrog lub rwb thaiv tsev, qhov tam sim no yuav tsis ntws thiab muaj me me uas tuaj yeem ua tau kom tso cai rau tam sim no ntws (tshwj tsis yog tias qhov hluav taws xob tau nce mus rau qib tsis txaus ntseeg).

Txawm li cas los xij, yog tias siv lub transistor nruab nrab ntawm cov ntsiab lus A thiab B, nws muab txoj hauv kev zoo los tswj cov tam sim no.Lub transistor zaum ntawm cov ntsiab lus A thiab B, ntxiv ib qho tshiab taw tes C kom siv qhov sib txawv ntawm cov ntsiab lus C thiab B yuav ua rau tam sim no pib ntws ntawm A thiab B. Cov no tuaj yeem nqa tawm ntawm qhov tsis tshua muaj hluav taws xob (hauv qab 5 volts. ) thiab qis tam sim no (tsawg zog noj).Nws tsis tuaj yeem siv tsuas yog cov conductors lossis insulators.Vim hais tias cov conductors yeej ib txwm coj, insulators yuav tsis ua thiab tsuas yog semiconductors ua tiav qhib thiab kaw.

Tsis xav txog cov neeg ua si huab cua (qee tus hais tias xaiv tus Tsov tus menyuam), feem ntau cov neeg yuav xaiv tus miv.Rau cov neeg ua si hnyav, koj puas yuav xaiv tus Tsov loj?Qhov laj thawj yog vim li cas: kev tswj tsis tau thiab siab phem.Nws zoo li tus neeg xyuas pib thiab semiconductor.

Tiger = tus neeg xyuas pib (tsis muaj kev tswj hwm kev coj ua)

Cat = semiconductor (conductivity tuaj yeem tswj tau los ntawm doping)

Lub ntiaj teb ntawm kev tshawb fawb yog nruj thiab txhua yam cuab yeej uas tswj tsis tau yuav tsis kav ntev.