Teeb meem uas yuav tsum tau them sai sai rau thaum xaiv coj teeb lub zog hluav taws xob
Lub zog siv hluav taws xob yog ib qho tseem ceeb heev hauv LED raj, thiab qhov zoo ntawm lub hwj chim muab ncaj qha cuam tshuam rau kev pab lub neej ntawm LED raj. Yog tias lub raj LED piv rau tib neeg, tom qab ntawd lub teeb hlaws yog tib neeg lub cev, thiab lub zog siv yog tib neeg lub siab. Nws tuaj yeem pom qhov tseem ceeb ntawm kev siv fais fab, yog li lub zog siv hluav taws xob tseem hu ua tus ntsuj plig ntawm LED los ntawm cov neeg lag luam sab hauv.
Nug ib lo lus nug
1. Raws li qhov hluav taws xob muab hluav taws xob, muaj: dav dav hluav taws xob muab hluav taws xob thiab nqaim hluav taws xob fais fab mov;
2. Raws li kev tawm tswv yim thiab tso tawm, muaj: cov khoom siv hluav taws xob cais, cov khoom siv hluav taws xob tsis cais tawm;
Cov khoom siv hluav taws xob dav dav: Qhov hu ua dav voltage hais txog qhov hluav taws xob uas tuaj yeem hloov kho kom ua haujlwm tau zoo ntawm ntau lub tebchaws. Feem ntau hais lus, qhov ntau ntawm qhov hluav taws xob dav yog: 85V-265V. Cov nqes hluav taws xob nqaim hluav taws xob: Qhov hu ua nqaim hluav taws xob yog qhov txheeb ze tiag tiag, thiab qhov nqaim hluav taws xob feem ntau yog: 185-265V. Nws kuj tseem hais tias 85-180V.
Kev rho tawm hluav taws xob: Feem ntau hais lus, lub zog hluav taws xob sib cais yog lub hauv paus tsis txuas ncaj qha mus rau lub cuab yeej qub ntawm lub zog hluav taws xob, tab sis cov cuab yeej hluav taws xob qub tau muab rau lub tshuab hluav taws xob tom qab hloov pauv. Kev nyab xeeb kev ua haujlwm tau siab dua, tab sis vim tias qhov kev hloov pauv me ntsis nyuab dua, qhov kev hloov pauv ntawm kev siv hluav taws xob sib cais qis dua li ntawm cov khoom siv hluav taws xob uas tsis cais tawm. Kev hloov pauv kev ua haujlwm feem ntau yog li 85%.
Cov khoom siv hluav taws xob tsis sib cais: Hauv kev sib piv rau cov khoom siv hluav taws xob sib cais, cov khoom siv hluav taws xob tsis sib cais yog kev sib txuas ncaj qha ntawm cov kab hluav taws xob thiab cov khoom siv hluav taws xob qub, uas yog qhov txaus ntshai rau hluav taws xob poob. Piv nrog cov khoom siv hluav taws xob cais, kev nyab xeeb kev ua haujlwm qis dua, tab sis kev hloov pauv tau zoo dua. Feem ntau, kev hloov pauv ntawm 88% tuaj yeem ua tiav, thiab qhov siab tshaj tuaj yeem kwv yees li 92%, tab sis tus nqi yuav siab dua, thiab feem ntau nws tsis tsim nyog.
Nqe lus nug ob, lub hauv paus ntsiab lus ntawm LED fais fab mov:
Feem ntau hais lus, LED tsav lub zog feem ntau dhau los ntawm 3 qib hauv qab no,
1. Kauj ruam-nqis: nqis-nqis txuas nrog 220V (lossis 110V) lub hwj chim rau hauv AC lub zog qis.
2. Rectification: Qhov qis-voltage ncaj qha tam sim no tom qab nqis nqis tau hloov pauv mus rau qhov tsis ruaj khov ncaj qha tam sim no qis-voltage los ntawm diode (yam ntxwv ntawm diode: kev coj ua tsis ncaj).
3. Kev lim dej: Nws dhau los ua qhov ruaj khov qis hluav taws xob ncaj qha tam sim no los ntawm lub capacitor thiab inductance tom qab lim ntau.
4. Fais fab LED
5. Yuav tsum muaj kev tiv thaiv kev tiv thaiv kev nyab xeeb, tsis tu ncua tam sim no, ntau dhau, ua kom sov
Nug peb cov lus piav qhia ntawm ntau nqe lus hais txog kev siv fais fab:
1. Lub zog muaj nuj nqi: Lub zog muaj nuj nqis yog qhov sib npaug ntawm qhov sib txawv ntawm qhov hluav taws xob thiab qhov tam sim no. Vim tias ob qho tam sim no thiab qhov hluav taws xob yog cov duab yoj, ib qho yog kab sine thiab lwm qhov yog daim duab cosine; vim tias ob daim duab kab duab sib txawv ntawm 1/4 lub sijhawm (piv txwv li: 90 degrees), tus nqi PF tau tsim. Txhawm rau txhawm rau nce tus nqi PF, nws yog qhov tsim nyog Kev hloov kho hluav taws xob tau ntxiv rau cov khoom siv hluav taws xob, yog li tus nqi ntawm cov khoom siv hluav taws xob nrog tus nqi PF siab yog qhov siab dua. Tus nqi PF yam tsis muaj PF hloov kho Circuit yog feem ntau nyob ib puag ncig 0.6, thiab PF tus nqi nrog PF Circuit tuaj yeem pib mus txog ib puag ncig 0.9 lossis siab dua. Thaum PF tus nqi qis, nws yuav ua paug lub zog hluav taws xob ntawm tag nrho cov khoom siv hluav taws xob. Thaum PF tus nqi qis, kev siv hluav taws xob tsim los ntawm cov cuab yeej siv hluav taws xob ntawm kab sib chaws tau qis dua. Yog li ntawd, lub tebchaws muaj PF tus nqi xav tau rau qee yam khoom siv hluav taws xob muaj zog. Rau cov uas qis dua 50W, tsis muaj qhov xav tau meej. Lub tebchaws xav tau yog tias PF tus nqi ntau dua 0.6.
2. Kev hloov pauv kev ua tau zoo: Nws yog qhov sib piv ntawm lub zog tso tawm rau lub zog tawm tswv yim. Piv txwv li: 10W ntawm lub zog hluav taws xob tau siv los ntawm lub raj, tab sis tsuas yog 8W ntawm lub zog hluav taws xob tau siv los tso tawm lub teeb (tseem hu ua kev ua haujlwm muaj txiaj ntsig), thiab 2W Lub zog hluav taws xob tau poob vim cua sov ntawm lub zog siv hluav taws xob (tseem hu ua: kev ua haujlwm tsis muaj txiaj ntsig), tom qab ntawd lub zog hloov pauv tau zoo ntawm lub raj roj teeb no yog: 80%. PF tus nqi siab dua, zoo dua rau daim phiaj hauv tebchaws; qhov kev hloov pauv tau zoo dua qub, zoo dua rau tus kheej, vim tias siv hluav taws xob ntau dua.
Yog li tom qab xam tawm lub tswvyim, koj yuav paub xaiv lub hwj chim rau lub raj coj. Yog CE, UL lees txais kev rho tawm yog yooj yim dua. Yog tias cov tseev kom muaj tsis siab, siv lub hwj chim tsis cais tawm.
