Ua ntej pib hnub no' lub ntsiab lus, cia' tsis yog" tsis ua lag luam zoo", cia' Kev tsim cov txheej txheem ntawm LED fluorescent teeb:
Tam sim no, kev tsim cov teeb ci LED yuav tsum tau ua ntej los ntawm kev siv computer nruj, ua lub teeb pom kev zoo, thiab tom qab ntawd nkag mus rau cov kab sib dhos ntawm lub rooj sib txoos ua ke. Peb yuav tsis pib cov ntsiab lus.
Txhua tus muaj lub neej zoo li no. Cov teeb ci LED uas nyuam qhuav yuav yog ib txwm ci, tab sis tom qab lub sijhawm, ntau lub teeb yuav tsaus thiab tsaus. Vim li cas LED teeb muaj cov txheej txheem zoo li no?
Hnub no kuv yuav coj nej mus saib! Yuav kom nkag siab tias yog vim li cas koj lub teeb LED tau tsaus dua, peb yuav tsum xub nkag siab txog lub sijhawm ua haujlwm-LED teeb lwj.
LED lub teeb attenuation txhais tau hais tias tom qab ib lub sij hawm ntawm lub sij hawm thaum lub teeb ci, nws lub teeb siv yuav qis dua qhov pib siv lub teeb thiab tsis tuaj yeem rov qab tau, uas yog, qhov txo qis yog hu ua LED lub teeb attenuation.
/ Lub teeb lwj graph /
LED teeb ua tsaus nti thaum lawv siv vim tias LED teeb muaj lub teeb pom kev zoo.
Lub teeb lwj ntawm LED cov khoom lag luam yog qhov tsis muaj zog ntawm lub teeb pom kev zoo thaum sib kis. Nyob rau theem no, cov khoom lag luam LED ua los ntawm cov tuam txhab loj thoob ntiaj teb LED muaj ntau qib sib txawv ntawm luminous lwj. High-power LEDs kuj muaj luminous lwj, uas yog ncaj qha ntsig txog qhov kub thiab txias. Nws yog txiav txim los ntawm nti, phosphor thiab ntim tshuab. Tam sim no, lub teeb lwj ntawm cov LEDs dawb ntawm kev ua lag luam yog ib qho teeb meem tseem ceeb tshaj plaws nyob rau hauv lub peb hlis ntuj rau pej xeem teeb pom kev zoo.
Lub teeb lwj feem ntau yog hais txog nws cov luminous flux. Thaum lub nto ntawm lub nruas photosensitive yog them, raws li tus nqi accumulates nyob rau saum npoo ntawm photosensitive nruas, lub peev xwm tseem nce, thiab thaum kawg mus txog lub" saturation" muaj peev xwm, uas yog lub peev xwm siab tshaj plaws. Lub peev xwm saum npoo yuav poob rau lub sijhawm. Feem ntau, lub peev xwm thaum ua haujlwm qis dua qhov peev xwm no. Cov txheej txheem ntawm ntuj txo qis hauv lub sijhawm dhau los hu ua" tsaus nti" txheej txheem. Thaum lub nruas photosensitive scanned thiab nthuav tawm, qhov chaw tsaus nti (xa mus rau qhov chaw ntawm lub photoconductor tsis irradiated los ntawm lub teeb) tseem nyob rau hauv qhov tsaus ntuj nti txheej txheem; thaj chaw kaj lug (xa mus rau qhov chaw ntawm lub photoconductor ntawm ib feem irradiated los ntawm lub teeb) cov cab kuj ceev nyob rau hauv lub photoconductive txheej nce sai heev. Cov conductivity nce sai heev, tsim ib qho hluav taws xob photoconductive, tus nqi sai sai ploj, thiab lub peev xwm ntawm photoconductor kuj poob sai. Hu nws" teeb lwj".
Nws yog ib qho tshwm sim heev uas LED teeb ua tsaus nti thaum lawv siv. Ntxiv nrog rau lub teeb lwj, cov laj thawj uas tuaj yeem ua rau lub teeb ci LED tsis muaj dab tsi ntau tshaj li ob lub ntsiab lus hauv qab no.
1. Lub tsav puas lawm:
LED teeb hlaws yuav tsum tsis tshua muaj hluav taws xob DC (qis dua 20V), tab sis peb lub ntsiab tseem ceeb yog AC siab voltage (AC 220V). Txhawm rau tig lub zog hluav taws xob rau hauv hluav taws xob xav tau los ntawm lub teeb hlaws, ib lub cuab yeej hu ua" LED tas li tam sim no tsav fais fab mov" yog xav tau.
Nyob rau hauv txoj kev xav, tsuav yog tus tsav tsheb' qhov tsis sib xws ntawm lub teeb hlaws lub rooj tsavxwm, nws tuaj yeem ua haujlwm tsis tu ncua thiab siv ib txwm. Sab hauv ntawm tus tsav tsheb yog qhov nyuaj, txhua yam khoom siv (xws li capacitor, rectifier, thiab lwm yam) tsis ua hauj lwm yuav ua rau cov zis voltage hloov, uas yuav ua rau lub teeb dim.
Kev puas tsuaj ntawm tus tsav tsheb yog hom tsis ua haujlwm tshaj plaws hauv LED teeb, thiab feem ntau tuaj yeem daws tau tom qab hloov tus tsav tsheb.
2. LED hlawv tawm:
LED nws tus kheej yog kev sib txuas ntawm cov hlaws dai ntawm ib qho los ntawm ib qho, yog tias ib qho los yog ib feem ntawm lawv tsis ci, nws yuav ua rau tag nrho lub teeb dim. Lub teeb hlaws feem ntau txuas nrog hauv koob thiab tom qab ntawd nyob rau hauv tib lub sijhawm - yog li yog tias lub teeb hlaws kub hnyiab tawm, ib pawg ntawm cov hlaws teeb yuav tsis teeb.
Muaj cov pob dub pom tseeb ntawm qhov chaw ntawm lub teeb hluav taws kub hnyiab, pom nws, txuas ib lub xaim rau sab nraum qab ntawm nws, thiab luv-circuit nws; los yog hloov lub teeb hlaws tshiab los daws qhov teeb meem.
LED kub hnyiab tawm qee zaus, nws yuav yog qhov xwm txheej. Yog tias nws kub hnyiab tas li, qhov teeb meem tsav tsheb yuav tsum tau txiav txim siab - lwm qhov tshwm sim ntawm tus neeg tsav tsheb tsis ua haujlwm yog hlawv cov hlaws teeb.
Vim li cas LED teeb nyem? Dab tsi yog qhov laj thawj rau flickering ntawm LED teeb? . .
Muaj ib lub capacitor nyob rau hauv tus neeg tsav tsheb ntawm lub teeb LED, uas tuaj yeem nkag siab tias yog lub peev xwm me me ntawm lub roj teeb rov qab: thaum tam sim no dhau los ntawm lub capacitor, lub capacitor yuav txuas ntxiv mus - tom qab them tag nrho, lub capacitor yuav tso tag nrho cov khoom siv hluav taws xob. zog ib zaug.
LED lub teeb flickers, uas yog nyob rau hauv rooj plaub tom kawg: lub teeb raug tua thaum lub sij hawm them nyiaj ntawm lub capacitor-vim hais tias lub sab hauv tam sim no ntawm lub capacitor yog me me, lub them ceev ceev yog heev qeeb, yog li koj yuav pom tias lub teeb yog extinguished. qhov muag liab qab. Thaum lub capacitor tau them tag nrho, nws tso tawm hluav taws xob lub zog ntawm ib zaug thiab teeb lub teeb. Tab sis vim yog qhov me me ntawm cov khoom siv hluav taws xob, lub teeb yuav tawm sai heev-them rov them thiab tawm, qhov muag liab qab tuaj yeem pom lub teeb flickering.
Thaum lub teeb nyob rau hauv ib txwm siv, tsis muaj flicker yuav pom, vim hais tias tam sim no los ntawm lub capacitor yog loj thiab them ceev ceev heev.
Yog li, dab tsi yuav ua rau me me tam sim no ntws hauv lub capacitor? Thawj yog vim qhov zoo ntawm lub capacitor tsis zoo - lub capacitor zoo muaj ntau lub zog khaws cia, thiab cov me me tam sim no hauv Circuit Court tsis txaus los khaws lub zog hauv lub capacitor. Qhov nruab nrab pib tsuas yog kwv yees li 20 yuan, thiab tus nqi ntawm cov khoom siv hluav taws xob zoo yog tej zaum ntau tshaj 20 yuan.
Tsis tas li ntawd, peb tuaj yeem pib los ntawm qhov chaw ntawm cov dej me me.
Muaj peev xwm 1: Hloov mus tswj cov kab nruab nrab
Qhov hloov pauv tswj cov hlau nruab nrab, uas txhais tau hais tias cov hlau nyob ncaj qha txuas nrog lub teeb (capacitor). Cov hlau nyob muaj lub peev xwm siab. Yog tias muaj qhov tsis tshua muaj peev xwm nyob rau hauv kab ntawm lub sijhawm no, qhov muaj peev xwm sib txawv yuav raug tsim-lwm lub npe rau qhov sib txawv, hu ua voltage. Nws' tsuas yog tias qhov sib txawv ntawm lub sijhawm no tsawg dua li ntawm 220V. Thaum qhov hluav taws xob tau siv thoob plaws lub capacitor, qhov tsis muaj zog tam sim no yuav raug tsim tawm.
Kho cov kab hluav taws xob ntawm ib qho kev tswj kev hloov
Kev sib txuas ntawm kev tswj dual
Yog li ntawd, kev sib txuas ncaj qha ntawm cov xaim nyob rau lub teeb hluav taws xob yuav ua rau lub teeb ci LED flicker. Qhov no yog qhov teeb meem kev tsim kho, thiab tsis muaj lwm txoj hauv kev tsuas yog hloov cov kev taw qhia ntawm xoom kab hluav taws.
Muaj peev xwm 2: Cov kab nruab nrab yog nyob
Yog tias ob qhov kawg ntawm lub teeb (capacitor) txuas nrog xoom kab ntawm xoom lub peev xwm, txhua yam yuav zoo? Tsis yog kiag li! Cov hlau nruab nrab yog ib qho yooj yim kom tau them-tshwj xeeb tshaj yog cov hlau nruab nrab ntawm lub teeb hluav taws xob. Feem ntau vim hais tias lub teeb hloov yog unreliable heev.
Qhov zoo ntawm cov qauv sab hauv ntawm lub teeb hloov tam sim no yog kev txhawj xeeb heev. Yog tias qhov kev ncua deb ntawm qhov nruab nrab ntawm lub davhlau ya nyob twg nyob ze dhau lawm, qhov rwb thaiv tsev tsis tsim nyog, thiab lwm yam, nws yuav ua rau lub teeb hluav taws xob nruab nrab ntawm lub teeb hluav taws xob. Yog tias koj tsis ntseeg kuv, koj tuaj yeem qhib qhov hloov pauv uas koj tau txuas nrog koj lub tsev thiab sim nws nrog tus cwj mem hluav taws xob. Hauv txoj kev xav, thaum qhov hloov pauv, tsuas yog Firewire davhlau ya nyob twg tuaj yeem teeb lub cwj mem hluav taws xob. Tab sis nyob rau hauv kev siv tiag tiag, lub davhlau ya nyob twg txuas nrog xoom kab (kab teeb) kuj tseem tuaj yeem teeb lub cwj mem hluav taws xob hauv txhua qhov yuav tshwm sim.
Nws' tsuas yog qhov hloov pauv feem ntau, txawm tias cov kab nruab nrab nyob, muaj qhov tsis tshua muaj hluav taws xob, uas tsis txaus los tsim cov kab tam sim no. Tab sis yog hais tias lub rwb thaiv tsev yog me ntsis zuj zus, tam sim no generated me ntsis loj, thiab lub capacitor yuav raug them.
Lwm qhov taw qhia: thaum lub qhov hloov pauv muaj qhov taw qhia lub teeb, qhov taw qhia lub teeb yuav teeb thaum lub teeb raug kaw. Lub sijhawm no, qhov tsis muaj zog tam sim no yuav tsum tau tsim tawm - qhov no ntawm qhov tam sim no yuav ntws los ntawm lub capacitor thiab khaws cia los ntawm lub capacitor. Cov xwm txheej no tuaj yeem daws tau los ntawm kev hloov qhov hloov pauv zoo dua yam tsis muaj qhov taw qhia lub teeb.
Muaj peev xwm 3: Induction hluav taws xob
Yog tias muaj ntau cov xov hlau nyob ib ncig ntawm lub capacitor, thaum lwm cov xov hlau ua haujlwm, induction hluav taws xob yuav raug tsim nyob ze ntawm lub capacitor-ib kab lus piav qhia vim li cas cov hluav taws xob induction: ob lub conductors raug muab tso rau hauv qhov sib npaug los tsim lub capacitor tshiab.
Cov neeg feem coob tau poob thaum ntsib qhov xwm txheej no. Muaj ob txoj kev daws teeb meem nyob rau lub sijhawm no:
1) Hloov lub teeb hluav taws xob nrog lub teeb fluorescent lossis lub teeb incandescent.
2) Txuas lub 220V relay coil nyob rau hauv series nrog lub oob khab ntawm lub teeb LED. Siv cov coil kom haus cov hluav taws xob induced los ntawm Circuit Court.
