Yuav ua li cas nce kev ntseeg tau ntawm LED fluorescenttube
Ib qho laj thawj tseem ceeb rau kev ua haujlwm qis ntawm LED tsav lub zog siv yog qhov tsis muaj lub neej tsis txaus ntawm aluminium electrolytic capacitor xav tau rau lub zog tsav tsheb. Qhov laj thawj tseem ceeb yog tias qhov kub ib puag ncig sab hauv LED lub raj roj fluorescent yog siab heev thaum lub sijhawm ua haujlwm ntev, uas ua rau cov electrolyte ntawm aluminium electrolytic capacitor tau siv sai. Qhuav, lub neej kev cia siab luv heev, thiab feem ntau tsuas yog ua haujlwm txog 5,000 teev. Lub neej ntawm LED teeb pom kev yog 50,000 teev, yog li lub neej ua haujlwm ntawm txhuas lub tshuab hluav taws xob tau ua dhau los luv luv ntawm lub neej ntawm LED tsav lub zog hluav taws xob.
Txhawm rau daws qhov teeb meem no, qee tus neeg muag khoom tau tsim cov LED fluorescent raj tsav lub zog daws teeb meem yam tsis muaj cov khoom siv hluav taws xob electrolytic. Tab sis tsis yog txhua tus LED fluorescent raj tsav lub zog xa khoom pom zoo ntawm txoj hauv kev no. Chen Rong tau taw qhia:" Tam sim no, tsis muaj cov khoom tsim hluav taws xob loj LED ua kom lub raj xa hluav taws xob siv hluav taws xob siv cov tshuaj daws teeb meem uas tsis muaj lub tshuab hluav taws xob. Yog tsis muaj nws, ntau qhov kev xeem tsis tuaj yeem dhau mus, xws li kuaj EMI thiab kuaj tsis pub ya raws."
Lub raj hluav taws xob fluorescent LED tsav lub zog daws teeb meem uas siv aluminium electrolytic capacitors tuaj yeem yooj yim dhau qhov kev xeem saum toj no. Yuav ua li cas yog tias nws tau hloov pauv los ntawm zaj duab xis capacitors thiab cov capacitors ceramic lossis tantalum capacitors? Zaj duab xis capacitors yuav tsum ua tiav tib lub peev xwm (feem ntau yog 100-220uF), lawv yuav loj heev thiab raug nqi siab heev. Ceramic capacitors feem ntau muaj peev xwm me me dhau. Yog tias siv ntau yam khoom siv hluav taws xob siv hluav taws xob kom ua tiav lub peev xwm loj, nws yuav nyob hauv cheeb tsam pawg thawj coj saib. Thiab tus nqi loj heev. Rau tantalum capacitors kom muaj lub peev xwm loj li no, ib qho yog kim heev, tab sis kev tiv thaiv qhov hluav taws xob tsawg dhau kom ua tau raws li qhov xav tau. Yog li ntawd, yog tias koj hloov nws nrog lwm hom capacitor, nws ib txwm yog qhov loj dhau lossis kim dhau. Yog tias koj hloov cov kev tsis txaus no nrog lub capacitor nrog lub peev xwm me, cov txiaj ntsig ntawm kev tshem tawm ripples yuav tsis zoo li ntawd. Ntau cov khoom lag luam xa tawm tsis tuaj yeem hla qhov ntsuas kev xeem ntawv pov thawj nruj. Yog li ntawd, tam sim no muaj txiaj ntsig zoo LED fluorescent raj tsav lub zog hluav taws xob tseem siv ntau hauv txhuas. Electrolytic capacitors.
Tus neeg muag khoom tshaj tawm tias tsis yog hluav taws xob hluav taws xob LED lub teeb hluav taws xob lub raj tsav lub zog daws yuav zoo li tsuas yog tshem tawm AC cov khoom siv hluav taws xob electrolytic capacitor, thiab qhov tso tawm tam sim no aluminium electrolytic capacitor yuav tsum nyuaj rau tshem lossis hloov.
NXP tau tshaj tawm TRIAC dimmable LED fluorescent tube nrog lub zog tsav hauv. Qhov SSL2102-based tsav lub zog daws siv aluminium electrolytic capacitors. Thaum tus kws sau ntawv nug txog kev ua haujlwm ntawm lub teeb fluorescent, lub neej ua haujlwm ntawm aluminium electrolytic capacitor yuav twv yuav raug cuam tshuam rau lub neej ntawm tag nrho cov LED fluorescent raj, tab sis qee qhov kev siv lub cev tuaj yeem coj los daws qhov teeb meem no, xws li tso cov txhuas electrolytic capacitor ntawm PCB ze ntawm lub teeb. Tus Tsov tus tw, feem ntau hais lus, qhov ntsuas kub ntawm chav haujlwm ze tshaj plaws ntawm lub teeb ci LED yog qhov siab tshaj, uas tuaj yeem ncav cuag 100-200 ℃. Lub tshuab hluav taws xob tawg hluav taws xob hluav taws xob yog qhov thib ob, feem ntau nyob ib puag ncig 100 ℃, thiab lub teeb lub teeb yog qhov qis tshaj, feem ntau nyob ib puag ncig 70 ℃, yog li tsuas yog them nyiaj rau electrolyzing txhuas. Qhov chaw ntawm lub capacitor nyob ze rau qhov kawg ntawm lub teeb, thiab nws lub neej yuav tsis tawg ntau dhau. Peb cov kev sim qhia pom tias nws lub neej tuaj yeem ncav txog 10,000 teev, uas yog sib npaug rau 10 xyoo ntawm kev siv. Rau cov neeg siv hauv tsev neeg, nws yog qhov siv tau los hloov lub raj roj fluorescent LED ib zaug txhua kaum xyoo.
Los ntawm qhov kev xav ntawm lub teeb pom kev zoo ntawm LED lub raj xa hluav taws xob lub zog hluav taws xob, Chen Rong tau hais tias Nyij Pooj thiab Asmeskas yuav lees txais cov kev daws teeb meem uas tsis yog cais tawm vim tias lawv cov kab hluav taws xob nkag hluav taws xob tsuas yog 110V. Tuam Tshoj thiab Europe yuav siv cov kev daws teeb meem cais ua qhov tseem ceeb. Txij li lawv cov kab hluav taws xob nkag hluav taws xob siab li 220V, kev nyab xeeb ntawm kev daws teeb meem raug lees paub, txawm hais tias tus nqi yuav siab dua.
