Yuav ua li cas xaiv ib tug switching fais fab mov?
Thawj lub ntsiab lus ntawm kev xaiv switching fais fab mov, tshem lawv cov kev xav tau
Feem ntau peb yog nyob rau hauv lawv tus kheej kev siv cov khoom tsis ua hauj lwm yuav xav txog kev yuav switching fais fab mov, koj muaj peev xwm ncaj qha mus rau yav dhau los fais fab mov mus nrhiav tau ib co kev muag khoom ntawm switching fais fab mov tuam txhab, tsis muaj xws li cov qauv los yog tsis uas yuav phim lub qauv tuaj yeem hloov tau, qhov tshwj xeeb tuaj yeem ua los ntawm cov hauv qab no:
Switching fais fab mov input thiab tso zis hom
Muaj peev xwm muab faib ua: ① AC / DC ② DC / DC ③ DC / AC Lus Cim: AC rau AC, DC rau DC, xws li AC / DC uas yog AC input DC tso zis.
2 Input voltage
Feem ntau siv input voltage specifications yog 110V, 220V, thiab universal input voltage (AC: 85V-264V) peb specifications. Input voltage specifications yuav tsum tau xaiv raws li qhov chaw ntawm kev siv.
3 Tso zis voltage thiab tam sim no
Kev xaiv ntawm kev hloov hluav taws xob yog thawj zaug, qhov hluav taws xob yuav tsum zoo ib yam, ua raws li qhov tam sim no, qhov ntsuas tam sim no ntawm cov khoom siv hluav taws xob hloov pauv yuav tsum siab tshaj qhov siab tshaj plaws tam sim no ntawm lub load, piv txwv li, koj lub Circuit Court yog 15V, 60mA, nws feem ntau pom zoo kom xaiv lub hwj chim ntawm ntau tshaj 100mA. Tsis tas li ntawd, ntev npaum li qhov hluav taws xob zoo ib yam, txawm tias qhov ntau npaum li cas tam sim no muab los ntawm kev hloov hluav taws xob hloov hluav taws xob ntau dua li qhov kev siv tiag tiag ntawm Circuit Court yuav tsuas dhau ntau dhau, yuav tsis muaj kev puas tsuaj.
4 Hloov Cov Khoom Siv Hluav Taws Xob
① tswj kev hloov fais fab mov: input voltage tso zis voltage yog nyob ntawm tus nqi; ② silicon tswj switching fais fab mov: tuaj yeem kho tau los ntawm cov khoom siv hluav taws xob hloov pauv qhov loj ntawm qhov tso zis hluav taws xob; ③ adjustable switching power supply: input voltage rated range, output voltage thiab tam sim no tuaj yeem hloov kho los ntawm potentiometer thiab lwm txoj hauv kev.
5 Switching fais fab mov load yam ntxwv
Txhawm rau txhim kho kev ntseeg tau ntawm lub kaw lus, nws raug pom zoo tias qhov hloov hluav taws xob ua haujlwm ntawm 50% -80% load yog qhov zoo, uas yog, qhov kev xaiv ntawm kwv yees li 30% ntawm cov zis hluav taws xob ntsuas cov qauv. Piv txwv li, yog tias lub zog siv yog 20W, yuav tsum siv lub zog hloov hluav taws xob nrog lub zog tso zis ntawm 25W-40W. Yog hais tias lub load yog lub cev muaj zog, lub teeb lub teeb los yog lub peev xwm load, thaum lub hwj chim-on lub sij hawm thaum tam sim no loj, yuav tsum tau xaiv kom tsis txhob overloading lub hwj chim mov.
6 ambient kub
Tsis tas li ntawd yuav tsum xav txog qhov kub thiab txias ntawm kev siv hluav taws xob hloov hluav taws xob, thiab tsis muaj cov khoom siv cua txias ntxiv, nyob rau hauv lub nplhaib siab zog yuav tsum tau derated tso zis. Lub ambient kub yuav tsum raug xa mus rau qhov derating nkhaus ntawm lub zog tso zis.
