Lub hwj chim ncaj qha (DC) yog ib lub cuab yeej tseem ceeb uas hloov cov hluav taws xob hloov pauv (AC) los ntawm lub hwj chim tseem ceeb mus rau hauv qhov tso zis DC ruaj khov. Cov khoom siv hluav taws xob DC yog qhov tseem ceeb hauv ntau yam kev siv, txij li cov khoom siv hluav taws xob rau cov neeg siv khoom mus rau cov txheej txheem kev lag luam. Tsab xov xwm no tshawb nrhiav txog ntau yam kev siv ntawm cov khoom siv hluav taws xob DC, lawv qhov tseem ceeb, thiab lawv tau koom ua ke li cas rau hauv ntau lub tshuab.
1. Cov Haujlwm Tseem Ceeb thiab Hom
Lub luag haujlwm tseem ceeb ntawm lub zog fais fab DC yog muab lub zog hluav taws xob lossis tam sim no tas li rau cov khoom siv uas xav tau DC rau kev ua haujlwm. Tsis zoo li lub zog AC, uas hloov nws txoj kev mus tas li, lub zog DC ntws mus rau hauv ib qho kev mus tas li, ua rau nws zoo tagnrho rau cov khoom siv uas xav tau lub zog ruaj khov.
Muaj ntau hom DC fais fab mov, suav nrog:
Cov Khoom Siv Fais Fab Linear: Cov no paub txog kev muab cov zis ruaj khov thiab suab qis. Lawv ua haujlwm los ntawm kev hloov AC mus rau DC los ntawm lub transformer, rectifier, thiab ntau cov lim dej.
Cov Khoom Siv Fais Fab Hloov: Cov no ua haujlwm tau zoo dua thiab me dua li cov khoom siv fais fab linear. Lawv hloov AC mus rau DC los ntawm kev qhib thiab kaw sai sai siv cov khoom semiconductor, ua rau muaj kev ua haujlwm tau zoo dua thiab tsim cua sov tsawg dua.
Cov Khoom Siv Fais Fab Programmable: Cov no tso cai rau cov neeg siv teeb tsa cov zis hluav taws xob lossis cov theem tam sim no los ntawm cov interfaces digital, ua rau lawv zoo tagnrho rau kev sim thiab kev txhim kho.
2. Cov ntawv thov hauv Cov Khoom Siv Hluav Taws Xob
Ib qho ntawm cov khoom siv fais fab DC uas siv ntau tshaj plaws yog siv rau hauv cov khoom siv hluav taws xob. Cov khoom siv xws li xov tooj ntse, laptops, thiab ntsiav tshuaj txhua yam xav tau lub zog DC kom ua haujlwm tau. Cov chargers rau cov khoom siv no hloov AC los ntawm lub qhov (socket) phab ntsa mus ua DC, uas tom qab ntawd them lub roj teeb lossis muab lub zog rau lub cuab yeej ncaj qha.
Cov khoom siv fais fab DC kuj pom muaj nyob rau hauv lwm yam khoom siv hluav taws xob hauv tsev, suav nrog cov TV, cov khoom ua si, thiab cov khoom siv me me. Qhov sib xws ntawm lub zog DC ua kom cov khoom siv no ua haujlwm tau zoo thiab muaj kev nyab xeeb.
3. Kev Siv Hauv Kev Lag Luam thiab Kev Tsim Khoom
Hauv kev lag luam, cov khoom siv fais fab DC yog siv los muab zog rau ntau yam tshuab thiab khoom siv. Piv txwv li, lawv yog qhov tseem ceeb hauv kev muab zog rau cov programmable logic controllers (PLCs), uas yog lub hlwb tom qab cov tshuab automation hauv cov chaw tsim khoom. Lub zog DC kuj tseem ceeb rau kev khiav cov sensors, actuators, thiab lwm yam kev tswj hwm uas xav tau lub zog ruaj khov thiab meej.
Tsis tas li ntawd xwb, cov khoom siv fais fab DC siv rau hauv cov txheej txheem xws li electroplating thiab electrolysis, qhov twg qhov hluav taws xob DC ruaj khov yog qhov tsim nyog los xyuas kom meej tias muaj cov txiaj ntsig zoo sib xws. Hauv cov txheej txheem no, cov khoom siv fais fab DC tswj cov nqi tso tawm ntawm cov ntaub ntawv, ua rau nws yog ib qho tseem ceeb hauv kev lag luam tsim khoom.
4. Kev Sib Txuas Lus thiab Kev Sib Txuas Lus
Cov chaw tsim kho kev sib txuas lus vam khom rau cov khoom siv fais fab DC. Cov khoom siv xws li routers, switches, thiab cov chaw nres tsheb xav tau lub zog DC txhim khu kev qha kom tswj tau kev sib txuas lus tsis tu ncua. Lub zog DC yog qhov nyiam siv hauv cov kab ke no vim nws ruaj khov thiab muaj peev xwm muab lub zog sib xws yam tsis muaj kev hloov pauv uas tuaj yeem tshwm sim nrog lub zog AC.
Tsis tas li ntawd xwb, nyob rau hauv cov chaw sib txuas lus nyob deb nroog, cov khoom siv fais fab DC feem ntau raug txuas nrog cov roj teeb thaub qab kom ntseeg tau tias ua haujlwm tas mus li thaum lub sijhawm hluav taws xob tsis ua haujlwm. Kev sib xyaw ua ke no lav tias cov tes hauj lwm sib txuas lus tseem ua haujlwm txawm tias nyob rau hauv cov xwm txheej tsis zoo.
5. Tsheb thiab Kev Thauj Mus Los
Cov khoom siv fais fab DC kuj tseem ceeb rau cov tsheb thiab cov tshuab thauj mus los. Cov tsheb niaj hnub no muaj ntau yam khoom siv hluav taws xob, suav nrog GPS systems, infotainment units, thiab sensors, txhua yam uas xav tau DC fais fab. Lub roj teeb ntawm lub tsheb, uas muab DC fais fab, yog qhov tseem ceeb rau kev pib lub cav thiab muab zog rau cov tshuab hluav taws xob thaum lub cav tsis ua haujlwm.
Hauv cov tsheb fais fab (EVs), lub zog DC tseem ceeb dua. Tag nrho lub zog tsav ntawm lub tsheb EV vam khom lub zog DC khaws cia rau hauv cov roj teeb loj. Cov roj teeb no raug them los ntawm kev siv cov khoom siv fais fab DC, los ntawm lub grid los ntawm chaw them lossis los ntawm cov chaw siv hluav taws xob rov ua dua tshiab xws li cov vaj huam sib luag hnub ci.
6. Cov Khoom Siv Kuaj thiab Kev Ntsuas
Hauv kev tshawb fawb thiab kev txhim kho, cov khoom siv fais fab DC yog qhov tseem ceeb heev. Cov chaw soj nstuam siv lawv los muab hluav taws xob rau ntau yam khoom siv thiab ua cov kev sim uas xav tau qhov hluav taws xob lossis tam sim no kom raug thiab ruaj khov. Cov khoom siv fais fab DC uas programmable tau muaj txiaj ntsig zoo hauv cov chaw no vim tias lawv tso cai rau cov kws tshawb fawb ua qauv sib txawv los ntawm kev hloov pauv cov kev teeb tsa fais fab.
Cov khoom siv fais fab DC kuj siv rau hauv kev sim thiab kho cov khoom siv hluav taws xob. Los ntawm kev muab ib puag ncig DC uas tswj tau, cov engineers tuaj yeem ua kom ntseeg tau tias cov khoom siv ua tau raws li cov lus qhia tsim nyog ua ntej lawv tso tawm rau hauv kev ua lag luam.
7. Cov Khoom Siv Kho Mob
Cov chaw kho mob kuj tseem siv cov khoom siv fais fab DC los ua haujlwm cov khoom siv tseem ceeb. Cov khoom siv xws li cov tshuab MRI, cov tshuab X-ray, thiab cov neeg mob saib xyuas txhua tus xav tau lub zog DC ruaj khov kom ua haujlwm tau raws li qhov tseeb. Hauv ntau qhov xwm txheej, qhov kev ntseeg tau ntawm lub zog fais fab tuaj yeem yog qhov teeb meem ntawm txoj sia thiab kev tuag, ua rau cov khoom siv fais fab DC zoo tseem ceeb hauv cov chaw kho mob.
Cov khoom siv kho mob uas nqa tau yooj yim, xws li cov tshuab defibrillators thiab cov twj tso kua mis, kuj siv lub zog DC, feem ntau yog los ntawm cov roj teeb. Cov khoom siv no yuav tsum muaj lub zog txhim khu kev qha kom ntseeg tau tias lawv ua haujlwm tau zoo thaum muaj xwm txheej ceev.
8. Cov Txheej Txheem Fais Fab Rov Ua Dua Tshiab
Thaum kawg, cov khoom siv fais fab DC ua lub luag haujlwm tseem ceeb hauv cov txheej txheem hluav taws xob rov ua dua tshiab. Piv txwv li, cov vaj huam sib luag hnub ci tsim hluav taws xob DC, uas tom qab ntawd siv los them cov roj teeb lossis hloov mus ua AC rau kev siv hauv lub network. Cov khoom siv fais fab DC siv rau hauv cov txheej txheem no los tswj kev ntws ntawm hluav taws xob thiab xyuas kom meej tias cov roj teeb tau them kom raug.
Cov tshuab cua thiab lwm yam tshuab hluav taws xob uas rov ua dua tshiab kuj siv cov khoom siv hluav taws xob DC rau cov hom phiaj zoo sib xws. Thaum lub ntiaj teb txav mus rau cov chaw muaj zog uas ruaj khov dua, lub luag haujlwm ntawm cov khoom siv hluav taws xob DC hauv kev tswj hwm thiab faib cov hluav taws xob no tau los ua qhov tseem ceeb zuj zus.
Xaus lus
Cov khoom siv fais fab DC yog cov khoom siv tau ntau yam thiab tseem ceeb heev rau ntau yam kev siv, txij li cov khoom siv hluav taws xob rau cov neeg siv khoom mus rau cov tshuab kev lag luam. Lawv lub peev xwm los muab lub zog ruaj khov thiab txhim khu kev qha ua rau lawv tsis tseem ceeb hauv lub ntiaj teb niaj hnub no uas tsav los ntawm thev naus laus zis. Thaum cov lag luam txuas ntxiv hloov zuj zus, qhov kev thov rau cov khoom siv fais fab DC zoo thiab raug yuav tsuas yog loj hlob, ntxiv qhia txog lawv qhov tseem ceeb thoob plaws ntau qhov chaw.
T: Lub DC Fais Fab Siv Rau Dab Tsi?
D: Lub zog fais fab ncaj qha (DC) yog ib qho khoom siv tseem ceeb uas hloov cov hluav taws xob hloov pauv (AC) los ntawm lub zog fais fab tseem ceeb mus rau hauv cov zis DC ruaj khov.
K: dc fais fab mov
Lub sijhawm tshaj tawm: Cuaj hlis-05-2024
