Txheej Txheem Txheej Ntiv qab nthab tsheb feem ntau siv cov pa hluav taws xob hluav taws xob, lossis siab - zaus hloov pauv. Txawm li cas los xij, qhov zoo ntawm kev ua lag luam muaj hluav taws xob tsis zoo. Piv txwv li, tus kws sau kuaj ib qho kev sib tw qab nthab nthab nruab nrog philips 32W nplhaib raj. Qhov ntsuas tau ntsuas tau yog raws li hauv qab no: Pin=16 w, nws tsuas yog siv 50% yog li siv 50% yog qhov tsis zoo. Tus sau kuj tau sim cov tsis muaj ntawm 9W lub zog - txuag teeb thiab pf=0.563.
Ob qho ntawm cov no ua tsis tau raws li lub hwj chim ua kom tau ntawm> 0.7, tseem lawv tseem muaj dav muaj nyob rau ntawm kev ua lag luam.
LED qab nthab teeb hluav taws xob cov khoom siv tuaj yeem raug faib ua ob hom: tsis - cais tawm thiab rho tawm.
Tsis - cais tawm tas li cov chaw tam sim no. Vim tias LED qab nthab teeb tsis yooj yim tau los ntawm cov neeg siv xws li qhov muag teev, lawv cov tsis tau muaj kev tiv thaiv tshav kub kub, lawv tsis muaj kev tiv thaiv tshav ntuj sov lossis luam tawm cov board ntawm cov hlau puag. Yog li ntawd, siv tsis-} Cov khoom siv cais tawm yooj yim tau yooj yim dhau cov ntawv pov thawj kev nyab xeeb yooj yim xws li CE thiab UL. Tsis tas li ntawd, nws cov kev teeb tsa feem ntau ua los ntawm tus kws tshaj lij hluav taws xob, uas txo txoj kev pheej hmoo ntawm hluav taws xob rau cov neeg siv.
LEDs yuav tsum tau tsav los ntawm ib qho chaw tam sim no. Txwv tsis pub, vim lawv qhov kub thiab txias coefficient, tam sim no yuav nce ntau ntau, ua rau nce kev sib tua kub thiab lub neej luv. Qhov chaw tam sim no tuaj ob hom: linear thiab hloov. Qhov zoo ntawm linar tas li cov chaw tam sim no yog tias lawv tsis tsim cov hluav taws xob cuam tshuam hluav taws xob (EMI), yooj yim, thiab qis- tus nqi. Lawv qhov tsis zoo yog qhov tsis muaj peev xwm.
1. Tsis -} cais tawm cov chaw seem tam sim no siv ib qho diode tas li
Ib qho kev ua si tam sim no yog ib qho linear tas li tam sim no uas nws constant tam sim no ua haujlwm tuaj yeem siv los tsav coj LEDs. Txoj kev yooj yim tshaj plaws yog txuas rau qhov tsis tu ncua tam sim no Diode ncaj qha hauv cov kab nrog LED. Txawm li cas los xij, thaum siv nws rau kev tsav tsheb coj, kev saib xyuas yuav tsum tau xaiv los xaiv qhov tsim nyog tam sim no thiab nrog voltage.
Yam tsawg kawg voltage
Vim tias tus lej tam sim no tsis tu ncua Tus VK feem ntau yog nyob ib ncig ntawm 5-10V.
Qhov Ntau Tshaj Plaws Hluav Taws Xob
Vim tias ib qho kev hloov pauv tam sim no yuav tsum muaj peev xwm los nqus cov tshuaj tiv thaiv nyob rau hauv lub zog hluav taws xob, muaj ntau yam uas yog ob zaug uas yog 110v diode rau tib feem pua. Piv txwv li, {+10% rau -20% voltage hloov rau 220V txhais tau tias yog {v flumed. Tom qab RECURATICATION, qhov kev hloov no yog khoo los ntawm 1.2 zaug, dhau los ua 79.2V. Rau 110V fais fab mov, muaj kev hloov pauv tib yam nkaus xwb txhais tau tias yog 39.6V Fribon. Qis dua voltage txhais tau tias kev siv hluav taws xob qis thiab siab dua ua haujlwm. Yog li ntawd, lub sijhawm tam sim no tas mus li yog qhov haum rau cov teb chaws nrog 110v lub zog loj.
Qhov siab tshaj plaws
Vim tias lub sijhawm tam sim no muaj kev siv hluav taws xob tsawg tsawg, ntau dhau yog qhov ua tsis tau zoo. Piv txwv li, ib tus coj coj li cas feem ntau yuav tsum tau 350mA, uas ib qho kev tawm tsam tam sim no los muab. Txawm hais tias nws tuaj yeem, lub zog noj yuav muaj ntev, txo qis tag nrho kev ua tau zoo.
Lub sijhawm tam sim no haum rau AC Mains {{powered Led fixtures uas siv rau ntau cov hluav taws xob ntau, qis dua cov ntawv thov tam sim no.
Daim duab hauv qab no qhia cov neeg tsav tsheb tas li rau lub teeb nrig qab nthab. Lub nra yog {{80 3022} diodes nyob rau hauv series, nrog tag nrho lub zog ntawm 16W. Tus tas mus li Diode tam sim no siv kuj muaj qhov tam sim no ntawm 60ma. Yog tias koj tsuas muaj 30ma tas li Diode tam sim no, koj yuav tsum txuas ob hauv koob thiab sib piv.
Siv ib qho kev ntsuas tam sim no uas yog tus tsav tsheb LED
Ntawm no, lub constant tam sim no Diode txoj haujlwm tam sim no yog txhawm rau tswj cov zis tas li tam sim no thaum cov ntaub ntawv tseem ceeb hluav taws xob hloov pauv. Nws kuj tshem tawm cov nyiaj tau los ntawm tus LED cov ntsuas kub tsis zoo. Txawm li cas los xij, vim nws cov hluav taws xob tsis kam, Diode tas li tam sim no Diode tam sim no los nqus cov kev hloov hluav taws xob kuj muaj tsawg. Piv txwv li, tus CRD muaj qhov ua haujlwm voltage ntau, rho tawm nws cov kev ua haujlwm tsawg kawg ntawm 10V, ua rau muaj feem ntau cov hluav taws xob feem ntau ntawm 90v. Yog tias siv nrog 220V Mains Fais Fab Khoom Siv Hluav Taws Xob, qhov kev hloov pauv hluav taws xob ntawm 290 rau 2190 rau 2190, qhov kev hloov hluav taws xob tsis pub dhau ntawm nws cov hluav taws xob. Yog tias 80 leds siv thiab lawv cov voltage rau pem hauv ntej yog 3.3v, tag nrho cov hluav taws xob yog 264v, uas yog raws nraim tus nqi ntawm 220V tom qab kho choj. Txij ntawm no, tsis muaj voltage poob hla qhov tas mus li- diode tam sim no, tab sis nws yuav tsis ua haujlwm. Ib qho hluav taws xob poob qis ntawm tsawg kawg 10V yog qhov yuav tsum tau, xav tau ib qho Rectified Voltage ntawm 274V thiab lub ntsiab hluav taws xob ntawm 228vac. Nyob rau ntawm qhov ntawd, qhov tas mus li {} Tam sim no Diode tam sim no, thiab yog li 0.03a x 10V= 0.3 w. Zuag qhia tag nrho efficiency tuaj yeem ncav cuag li 96% (tau kawg, lub rectifier kev ua tau zoo, yog li nws yog qhov qis dua). Yog hais tias lub ntsiab voltage nce mus rau 242Vac, Diode tas li yog 26.4V, thiab nws lub zog tau nce mus rau 0.79W, nqa nws txoj kev ua tau zoo rau 91%.
https: //www.luxsky-}}}} dej {}} phab ntsa {} phab ntsa {} phab ntsa {} phab ntsa {} lub teeb .hcl
