Ib qho ntawm cov teeb meem tseem ceeb uas tau ntsib los ntawm ob qho tib si kev paub dhau los thiab cov neeg siv hluav taws xob tshiab thiab xov tooj cua tsim yog cov khoom siv hluav taws xob. Rau cov kev xav tau no, cov cuab yeej xws li lub zog hluav taws xob (PS) tau tsim.
Thaum xaiv cov cuab yeej zoo li no, koj yuav tsum tau coj mus rau hauv tus account ntau yam tsim nyog uas tau txiav txim siab los ntawm kev ua haujlwm, kev xav tau kev nyab xeeb, cov khoom thauj khoom, thiab lwm yam. Ntxiv mus, koj yuav tsum tau coj mus rau hauv tus account xws li ib tug ntaus ntawv raws li ib tug mains fais fab mov - nws yuav ua tau haib, nruab nrab hwj chim los yog micropower.
Ua ntej ntawm tag nrho cov, koj yuav tsum tau them sai sai rau kev ua raws li cov kev txwv ntawm xws li ib tug ntaus ntawv nrog rau cov kev cai ntawm lub powered ntaus ntawv nws tus kheej. Cov khoom siv hluav taws xob muaj cov yam ntxwv zoo sib xws: kev siv tam sim no, cov khoom siv hluav taws xob, yuav tsum tau (ib txwm los yog nominal) qib rau voltage stabilization, txais tau (nrog rau nws qhov tsawg kawg nkaus thiab siab tshaj qhov tseem ceeb) voltage ripple theem.
Tsis tas li, cov khoom siv hluav taws xob muaj qee qhov zoo thiab cov yam ntxwv uas cuam tshuam ncaj qha rau nwskev khiav hauj lwm thiab Scope. Piv txwv li, qhov muaj lossis tsis muaj kev tiv thaiv, qhov hnyav thiab qhov ntev ntawm lub cuab yeej.
Fais fab mov yog ib feem tseem ceeb ntawm txhua yam khoom siv hluav taws xob. Txoj kev ntawm ob qho tib si thawj thiab theem nrab fais fab mov yuav tsum tau ua raws li cov txheej txheem tsim nyog, uas tau nthuav tawm ob qho tib si rau cov khoom siv tag nrho thiab rau nws cov khoom siv. Yog tias ib lub cuab yeej xws li lub zog hluav taws xob muaj qee qhov kev txwv uas mus dhau qhov kev tso cai txwv, qhov no tuaj yeem ua rau muaj kev tsis sib haum xeeb hauv lub cuab yeej thiab nws qhov kev puas tsuaj.
Muaj ntau hom kev sib txuas ntawm hluav taws xob:
- nrog capacitor lossis quenching resistor (hu ua transformerless);
- linear, uas yog ua raws li cov txheej txheem classical (transformer-rectifier, ces los lim thiab stabilization);
- mem tes siab voltage thiab siab zaus;
- mem tes theem nrab (ua haujlwm raws li lub tswv yim transformer-filters-high-frequency converter);
- autonomous power supplys;
- linear IP.
Linear yog qhov yooj yim tshaj plaws thiab pheej yig tshaj plaws rau cov kws tshaj lij xov tooj cua. Lawv feem ntau siv rau hauv cov khoom siv me me, xws li chargers, roj teeb, khoom siv hluav taws xob, lub tswb, thiab lwm yam. Tsis tas li ntawd suav nrog ntawm no yog lub zog tsis cuam tshuam (UPS).
Txawm li cas los xij, thaum siv cov txiaj ntsig tam sim no dhau ib ampere, qhov ua tau zoo ntawm kev siv cov cuab yeej xws lilinear fais fab mov yog txo qis rau ntau yam laj thawj:
- stabilization yam yuav tsis ruaj khov vim yog qhov hloov pauv ntawm lub zog loj;
- cov dej ntws siab xav tau kev teeb tsa ntawm cov hluav taws xob loj loj ntawm kev tswj cov transistors thiab rectifying diodes;
- qhov hluav taws xob ntau dua yuav muab rau cov tswv yim ntawm lub stabilizer dua li qhov tso cai voltage thaum lub sij hawm hloov pauv hauv lub network.
Txawm li cas los xij, tsis ntev los no, pulse converters (secondary), nrog rau cov khoom siv hluav taws xob raws li cov khoom siv hluav taws xob ntau zaus nrog cov khoom siv tsis hloov pauv, tau dhau los ua ntau yam.
