Daim ntawv qhia ua tiav rau Kev Siv Hluav Taws Xob: Los ntawm Cov Ntsiab Cai mus rau Kev Xaiv thiab Kev Kho
Cov khoom siv hluav taws xob yog ib qho tseem ceeb ntawm peb lub neej niaj hnub, ua lub luag haujlwm tseem ceeb hauv tsev, chaw ua haujlwm, thiab ib puag ncig kev lag luam. Kab lus no yuav qhia meej txog cov ntsiab lus tseem ceeb ntawm cov khoom siv hluav taws xob, hom hom, cov lus qhia xaiv cov khoom siv hluav taws xob, thiab yuav siv lawv li cas kom ruaj khov thiab nyab xeeb.
1.1 Lus Txhais ntawm Kev Siv Hluav Taws Xob
Lub hwj chim mov yog ib yam khoom uas muab hluav taws xob hluav taws xob thiab hloov nws mus rau hauv ib daim ntawv haum rau ib lub cuab yeej. Nws txhawb kev ua haujlwm ib txwm muaj ntawm lub cuab yeej los ntawm kev hloov cov khoom siv hluav taws xob sab nraud (xws li lub zog hluav taws xob lossis roj teeb) rau hauv qhov hluav taws xob thiab tam sim no los ntawm lub cuab yeej.
1.2 Basic Cheebtsam ntawm Kev Siv Hluav Taws Xob
Feem ntau cov khoom siv fais fab muaj xws li cov hauv qab no:
Cov tswv yim: Txuas rau lub zog sab nraud (xws li lub qhov hluav taws xob, roj teeb, lub tshuab hluav taws xob, thiab lwm yam).
Converter: Hloov cov input voltage mus rau hauv ib tug voltage haum rau siv.
Outputs: Outputs lub zog hluav taws xob rau lub cuab yeej.
1.3 Lub Hwj Chim Ua Haujlwm Li Cas
Lub hauv paus ntsiab lus ua haujlwm ntawm lub zog siv hluav taws xob tso siab rau kev hloov pauv cov hluav taws xob sib txawv (AC, DC) rau hauv lub zog xav tau los ntawm lub cuab yeej. Piv txwv li, lub mains muab AC zog, thaum muaj ntau yam khoom siv hluav taws xob xav tau DC fais fab. Lub hwj chim mov ua qhov kev hloov dua siab tshiab no los ntawm txoj hauv kev xws li rectification thiab voltage conversion.
2.1 Hloov tam sim no (AC)
AC fais fab yog hais txog hluav taws xob hluav taws xob muab los ntawm AC lub zog hluav taws xob. Hom fais fab no feem ntau siv hauv tsev thiab cov khoom siv hauv tsev. Nws tus yam ntxwv yog tias qhov kev taw qhia thiab qhov loj ntawm qhov tam sim no hloov tas li. AC fais fab feem ntau muaj qis dua kis tau tus mob thiab haum rau ntev - kis tau tus mob.
Qhov zoo: Ib qho yooj yim rau kev xa tawm thiab xa tawm, tus nqi qis dua, Universal daim ntawv thov
Qhov tsis zoo: Yuav tsum muaj cov cuab yeej hloov pauv ntxiv rau lub zog DC
2.2 Direct Tam sim no (DC)
Cov khoom siv hluav taws xob DC muab cov khoom siv hluav taws xob tsis tu ncua nrog cov kev taw qhia tas li thiab feem ntau siv rau hauv cov khoom siv uas xav tau qhov tseeb thiab ruaj khov, xws li cov khoom siv hluav taws xob, chargers, thiab roj teeb. Piv txwv li, khoos phis tawj thiab xov tooj ntawm tes feem ntau yog siv los ntawm DC lub zog.
Qhov zoo: Haum rau roj teeb lub zog, Haum rau cov khoom siv hluav taws xob precision
Qhov tsis zoo: Kev sib kis luv luv thiab poob siab
2.3 Switching Power Supply
Hloov cov khoom siv hluav taws xob yog ib hom khoom siv hluav taws xob uas siv cov khoom hloov pauv (xws li transistors) los kho qhov voltage. Lawv feem ntau ua haujlwm tau zoo thiab me dua li cov khoom siv hluav taws xob ib txwm muaj thiab tau siv dav hauv cov khoom siv hluav taws xob thiab khoos phis tawj.
Qhov zoo: Kev ua haujlwm siab, Compact thiab hnav, zoo stability
Disadvantages: Tsim ib co electromagnetic cuam tshuam (EMI)
2.4 Linear Power Supply
Cov khoom siv hluav taws xob kab hluav taws xob feem ntau siv cov khoom sib txuas (xws li cov khoom siv hluav taws xob) txhawm rau txo qis qhov hluav taws xob mus rau cov khoom siv hluav taws xob. Lawv tau dav siv nyob rau hauv daim ntawv thov nrog nruj voltage yuav tsum tau.
Qhov zoo: Cov zis hluav taws xob ruaj khov heev, tus nqi qis thiab cov qauv yooj yim
Disadvantages: Tsawg efficiency thiab loj loj
2.5 Uninterruptible Power Supply (UPS)
Ib qho khoom siv hluav taws xob tsis cuam tshuam (UPS) yog ib qho khoom siv uas muab lub sijhawm luv luv - lub zog txhawb nqa rau cov khoom siv thaum muaj hluav taws xob. UPSs feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau siv hluav taws xob tas mus li, xws li tsev kho mob thiab cov chaw khaws ntaub ntawv.
Qhov zoo: Muab kev txhawb nqa hluav taws xob tas mus li, Tiv thaiv cov ntaub ntawv poob lossis kev noj nyiaj txiag vim hluav taws xob poob
Disadvantages: Highly kim, txwv roj teeb lub neej
3.1 Yuav Ua Li Cas Xaiv Cov Khoom Siv Hluav Taws Xob?
Thaum xaiv lub hwj huam mov, xav txog cov hauv qab no:
★ Voltage thiab Current Requirements: Cov khoom sib txawv muaj qhov sib txawv ntawm cov khoom siv hluav taws xob thiab cov kev xav tau tam sim no. Thaum xaiv ib lub hwj huam mov, xyuas kom meej tias lub hwj huam mov tso zis voltage thiab tam sim no ua tau raws li lub cuab yeej xav tau.
★ Kev Xav Tau Lub Hwj Chim: Xaiv lub hwj huam mov raws li lub cuab yeej xav tau lub zog thiab xyuas kom meej tias cov khoom siv hluav taws xob muaj peev xwm txaus los txhawb lub cuab yeej ua haujlwm.
★ Efficiency thiab Thaum tshav kub kub Dissipation: Xaiv ib lub hwj huam npaum li cas yuav txo tau lub zog tsis tsim nyog thiab ntau dhau los ua cua sov.
Kev nyab xeeb: Lub siab- lub zog hluav taws xob zoo yuav tsum muaj kev tiv thaiv ntau dhau thiab luv luv - tiv thaiv Circuit Court kom ntseeg tau tias kev ua haujlwm ruaj ntseg.
★Environmental Compatibility: Thaum xaiv cov khoom siv hluav taws xob, xav txog ib puag ncig xws li kub thiab av noo kom ntseeg tau tias lub zog hluav taws xob tuaj yeem ua haujlwm tau zoo hauv ib puag ncig tshwj xeeb.
3.2 Yuav Siv Cov Khoom Siv Hluav Taws Xob li cas?
★ Kev soj ntsuam tsis tu ncua: Tsis tu ncua tshuaj xyuas cov khoom siv hluav taws xob ua haujlwm kom ntseeg tau tias tsis muaj qhov txawv txav xws li cua sov lossis suab nrov txawv txawv.
★ Tsis txhob overloading: Tsis txhob overload lub hwj chim mov, vim qhov no yuav ua rau nws lub neej luv luv los yog tseem ua rau tsis ua hauj lwm. Kev sib txuas kom raug: Thaum txuas cov khoom siv hluav taws xob, xyuas kom meej tias cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tau raug txuas kom raug kom tsis txhob muaj hluav taws xob tsis raug lossis tam sim no.
★ Kev Kho Kom Zoo: Cov khoom siv hluav taws xob siv rau lub sijhawm ntev yuav tsum tau ntxuav thiab khaws cia tsis tu ncua kom ntev lawv lub neej.
4.1 Fais fab mov tsis pib
Fais fab mov tsis ua hauj lwm tej zaum yuav tshwm sim los ntawm kev xaim tsis raug, tsis tshua muaj hluav taws xob, lub tshuab hluav taws xob, lossis lwm yam teeb meem. Txhawm rau hais txog qhov no, ua ntej txheeb xyuas tias cov khoom siv hluav taws xob tau raug xaim zoo thiab tias lub hwj chim ntsaws ntsaws ruaj ruaj. Yog tias cov khoom siv hluav taws xob tseem tsis pib, xyuas lub fuse hauv lub hwj chim lossis hloov cov khoom puas.
4.2 Cov zis tsis ruaj khov
Cov zis hluav taws xob tsis ruaj khov feem ntau tshwm sim los ntawm qhov teeb meem zoo nrog lub hwj chim mov nws tus kheej lossis kev hloov pauv ntawm qhov hluav taws xob sab nraud. Qhov no tuaj yeem hais tau los ntawm kev siv lub zog ruaj khov lossis hloov lub siab - lub zog zoo.
4.3 Overheating
Overheating feem ntau tshwm sim los ntawm kev thauj khoom ntau dhau, qhov cua tsis zoo, lossis lub zog tsis ua haujlwm. Qhov no tuaj yeem hais los ntawm kev txo cov load, txhim kho qhov cua, lossis hloov cov khoom siv hluav taws xob.
Cov khoom siv hluav taws xob muaj nyob thoob plaws hauv lub neej niaj hnub no, thiab kev xaiv kom raug thiab siv cov khoom siv hluav taws xob yog qhov tseem ceeb rau kev ua haujlwm ruaj khov. Kev txawj ntse ntawm kev siv lub zog yuav pab txhim kho kev ua haujlwm ntawm kev ua haujlwm thiab lub neej thiab ua kom muaj kev nyab xeeb thiab lub neej ntev ntawm cov khoom siv.
