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Puas LED leeg xav tau qhov ballast? Vim li cas?

T8 coj lub teeb ci tsis tas yuav tsum muaj ballasts. T8 cov nkhaus txhua lub khoob. Nws tuaj yeem ua lub teeb kom pom kev txuas los ntawm kev siv hluav taws xob hauv nroog 220v, uas yog qhov tseeb ntau dua kom yooj yim. Vim li cas koj tsis xav tau rab phom ntxiv lawm? Nws nyob ntawm seb nws ua haujlwm li cas.

Vim li cas vim li cas cov khoom qub-fluorescent leeg xav tau ballasts.

1. Rau kev tawm tsam. Lub raj tshuaj fluorescent ib txwm muaj teeb pom kev los ntawm fluorescent hmoov, thiab ob qho kawg yog filaments, uas yuav tsum tau thov nrog qhov ntsuas hluav taws xob kom muaj teeb ci. Yog li kuv xav txog kev siv lub ntsiab cai ntawm kev siv inductance rov-EMF superposition kom nce qhov voltage. Lub sijhawm hluav taws xob tam sim ntawd nyob ntawm lub tshuab hluav taws xob pib ntawm lub tshuab oob khab pib. Thaum ob qho kev ua haujlwm ua ke, lub teeb tuaj yeem ua kom pom kev. Qhov tsis zoo yog tias qhov khoom xa hluav taws xob tsis tuaj yeem dhau los tsawg. Thaum nws qis dua 160v, nws yog qhov tsis ua' t ua haujlwm. Rau thaj chaw tsis muaj zog, nws tsis yooj yim siv. Lub raj xa dej tsis qee cov teeb.

2. Qhov rov tshwm sim ntawm hluav taws xob hluav taws xob yog daws cov teeb meem ntawm kev pib siv hluav taws xob tsawg. Ua cov khoom hluav taws xob ballast. Siv txoj cai ntawm kev hloov pauv Circuit Court. Xws li thaum tsis tshua muaj siab. Ua kom cov zis hluav taws xob txhawm rau txhawm rau txhaws tawm lub raj fluorescent. Muaj qhov yuav tsum tau muaj rau MOS raj uas tsim hluav taws xob ntau, vim tias feem ntau nws yog qhov ntsuas hluav taws xob siab, thiab nws yooj yim rau triode kom tawg. Qhov tsis zoo yog tias kev pab lub neej ntawm hluav taws xob qhov chaw yuav luv. Tsis txhob hloov pauv ntau zaus.

Qhov laj thawj yog vim li cas cov teeb thiaj tsis tas yuav tsum npam.

1. Lub teeb ntsiab lus uas ci ntsa iab yog qhov txawv.

Lub raj LED yog lub semiconductor nti uas taws tawm lub teeb, thiab muaj ntau lub teeb LED hlaws uas txuas nrog rau hauv cov kab thiab ua ib ke los ua lub cev luminous. Tus naj npawb ntawm cov hlaws teeb ua ke hauv kev txiav txim siab qhov voltage ntawm lub teeb txoj hlua. Peb Lub Tshuab thev naus laus zis feem ntau yog 12 txoj hlua rau 24 txoj hlua. Lub zog hluav taws xob tsis sib haum ua ke siv txoj hlua qis, thiab cov hluav taws xob tsis cais siv hluav taws xob adopts siab txoj hlua suav.

Peb pom tau. Qhov tseeb, qhov ua hauj lwm voltage ntawm LED teeb hlaws dai tsis loj. 12 txoj hlua ntawm lub teeb hlaws siv lub voltage ntawm kwv yees li 36v, thiab qhov hluav taws xob ntawm 24 txoj hlua tsuas yog ib ncig ntawm 24 * 3v=74v, uas yog qhov tseeb kuj muaj kev nyab xeeb.

2. Lub ntsiab cai ua haujlwm ntawm lub hwj huam, kev coj fais fab mov yog kev hloov hluav taws xob, uas yog tswj los ntawm lub pob hluav taws xob. Thaum lub input voltage tsawg, lub davhlau ya nyob twg yuav pub rov qab lub teeb liab mus rau lub davhlau ya nyob twg kom nce voltage; thaum lub input voltage siab, qhov tso zis davhlau ya nyob twg tseem yuav rov qab lub teeb liab mus rau lub davhlau ya nyob twg thaiv cov voltage. Yog li ntawd. Lub voltage ntawm cov zis kawg yog ruaj khov, thiab qhov tam sim no yog qhov hloov tas li, uas tiv thaiv kev nyab xeeb ntawm kev coj teeb ntawm cov teeb. Nws tuaj yeem ua haujlwm stably.

Qhov zoo ntawm cov raj coj.

1. Cuam tshuam qhov tsis txaus ntawm kev tawm tsam kev tawm tsam. Tsis tuaj yeem pib hauv qis lub siab. Cov teeb uas coj tau muaj qhov dav hluav taws xob ntau. 85-265v input voltage tuaj yeem pib tau, kev siv ntau yog dav. Nws tuaj yeem siv yuav luag thoob plaws ntiaj teb.

2. Ua kom tiav qhov tsis txaus ntawm hluav taws xob ballasts. Nws yog ib qho yooj yim ua rau kev puas tsuaj rau lub hwj chim muab. Qhov tso zis hluav taws xob los ntawm LED teeb fais fab kev teeb tsa ntawm Langte Teeb pom kev zoo rau LED teeb txoj hlua yuav tsis pub tshaj 80v, uas yuav luag nyob hauv lub xeev tsis tshua muaj hluav taws xob. Cov khoom siv hluav taws xob tiv thaiv hluav taws xob kuj tiv thaiv, thiab LED teeb hlaws dai tseem muaj kev tiv thaiv. Hauv qhov xwm txheej no. Yog lawm, lub neej ntawm cov raj coj yog ntev dua li ntawm lub raj tshuaj fluorescent nrog lub foob pob. Cov txiaj ntsig tau pom tseeb heev.

Txheeb xyuas los ntawm cov ntsiab lus saum toj no. Koj yuav tsum paub yog vim li cas vim li cas cov hlab LED tsis txhob' t xav tau ballasts. Raws li rau li cas-qub-zam cov roj fluorescent leeg tuaj yeem hloov mus rau hauv LED tub, qhov tseeb nws yog teeb meem ntawm chav kawm. Txhua qhov ballasts hauv T5, T8, thiab T10 teeb lub raj teeb tsis muaj kev ntseeg tau lawm. Qhov nruab nrab xaim thiab cov xaim nyob ntawm lub hwj huam hluav taws xob ncaj qha nkag mus rau lub teeb nrig. Nruab ib lub raj coj thiab koj' rov ua tiav. Lub hauv paus ntsiab lus ntawm T5 coj raj thiab T10 coj raj yog tib yam li T8.