Electromagnetic Compatibility Requirements thiab Test Methods rau AC Stabilized Power Supply
1. Kev txhais thiab kev faib tawm ntawm DC tswj fais fab mov
DC tswj fais fab mov tseem hu ua DC voltage stabilizer. Nws lub hwj chim mov voltage feem ntau yog AC voltage. Thaum qhov voltage ntawm AC fais fab mov voltage los yog cov zis load kuj hloov, qhov ncaj qha tso zis voltage ntawm tus regulator yuav nyob twj ywm. Cov tsis muaj voltage regulator muaj xws li voltage stability, ripple coefficient thiab teb ceev. Tus qub sawv cev rau qhov cuam tshuam ntawm kev hloov pauv hauv qhov input voltage ntawm cov zis voltage. Lub ripple coefficient qhia qhov loj ntawm AC tivthaiv nyob rau hauv cov zis voltage raws li nyob rau hauv kev ua hauj lwm tej yam kev mob; tom kawg qhia txog lub sij hawm xav tau rau qhov voltage kom rov qab mus rau qhov qub nqi thaum lub input voltage los yog load hloov sharply. DC tswj fais fab mov muab faib ua ob hom: nruam conduction hom thiab hloov hom. Tus qub siv lub zog zaus hloov pauv hloov pauv ib-theem lossis peb-theem AC voltage rau tus nqi tsim nyog, tom qab ntawd kho thiab lim nws kom tau txais DC lub zog tsis ruaj khov, thiab tom qab ntawd tau txais qhov ruaj khov voltage (lossis tam sim no) los ntawm qhov hluav taws xob. stabilizing Circuit Court.
Cov khoom siv hluav taws xob zoo li no muaj cov kab yooj yim, me me ripples, thiab tsis tshua muaj kev cuam tshuam, tab sis nws muaj cov ntim loj, ntau yam khoom siv, thiab kev ua haujlwm tsis zoo (feem ntau qis dua 40 feem pua rau 60 feem pua). Lub tom kawg kho qhov tso zis voltage los ntawm kev hloov lub sijhawm ntawm lub sijhawm ntawm kev hloov pauv (lossis hloov), thiaj li ua tiav qhov kev tswj hwm hluav taws xob. Hom kev siv fais fab no muaj kev siv hluav taws xob tsawg thiab kev ua haujlwm ntawm li 85 feem pua, tab sis nws qhov tsis zoo yog cov ripples loj thiab kev cuam tshuam loj. Yog li ntawd, nws tau txhim kho sai heev txij li xyoo 1980s.
DC tswj fais fab mov tuaj yeem muab faib ua:
(1) Tswj rectification hom. Cov zis voltage yog kho los ntawm kev hloov lub sij hawm conduction ntawm thyristor.
(2) Txiav hom. Cov tswv yim yog qhov tsis ruaj khov DC voltage, thiab ib-txoj kev pulsating DC tau los ntawm kev hloov pauv ntawm qhov sib piv ntawm qhov hloov pauv, thiab tom qab ntawd qhov ruaj khov DC voltage tau txais tom qab lim.
(3) Hloov hom. Qhov tsis ruaj tsis khov DC voltage yog thawj zaug hloov mus rau hauv high-frequency AC los ntawm inverter, thiab tom qab ntawd hloov, kho, thiab lim, thiab DC cov zis hluav taws xob tshiab yog kuaj, thiab kev ua haujlwm zaus ntawm inverter yog cov lus tawm tswv yim tswj kom ua tiav lub hom phiaj ntawm stabilizing. cov zis DC voltage.
Qhov thib ob, kev siv DC fais fab mov
AC regulated fais fab mov yog siv nyob rau hauv lub voltage stabilization thiab kev tiv thaiv ntawm niaj hnub high-tech khoom xws li computers thiab lawv peripheral li, kho mob hluav taws xob cov cuab yeej, kev sib txuas lus thiab tshaj tawm cov khoom, cov khoom siv hluav taws xob, thiab cov kab ntau lawm.
DC tswj fais fab mov yog dav siv nyob rau hauv DC fais fab mov rau lub teb chaws tiv thaiv, kev tshawb fawb kev tshawb fawb, tsev kawm ntawv qib siab, lub chaw soj nstuam, industrial thiab mining tuam txhab, electrolysis, electroplating, them cov khoom, thiab lwm yam.
(1) Nws tuaj yeem siv rau kev laus ntawm ntau yam khoom siv hluav taws xob, xws li kev laus ntawm PCB boards, kev laus ntawm cov khoom siv hauv tsev, kev laus ntawm ntau yam khoom siv IT, kev laus ntawm CCFL, kev laus ntawm lub teeb raj
(2) Nws yog qhov tsim nyog rau kev laus thiab kev sim ntawm cov khoom siv hluav taws xob uas yuav tsum muaj lub sijhawm tsis siv neeg rau thiab tawm, thiab tsis siv neeg suav cov lej ntawm lub voj voog.
(3) Electrolytic capacitor mem tes aging
(4) Kev sim ntsuas ntawm cov resistors, relays, motors, thiab lwm yam.
(5) Tag nrho lub tshuab yog mature; Electronic Cheebtsam kev ua tau zoo, kev kuaj niaj hnub.
