Cov txheej txheem:
Video: Joule Thief Filament Teeb: 3 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:30
LED filaments yog nyias, lo zoo li LEDs. Lawv tau siv ntau lub teeb Edison zoo li lub qhov muag LED. Each ntawm cov nplaum nyias muaj ntau-20 txog 30 LEDs txuas nrog ua ke. Yog li ntawd lawv zoo nkauj heev thiab siv hluav taws xob zoo, txawm li cas los xij feem ntau xav tau ntau dua 70V txhawm rau qhib. Kuv xav ua lub teeb me me, siv roj teeb siv cov teeb ci LED. Tom qab sim ua ntau qhov kev sib tw, Kuv pom qhov yooj yim Circuit Court kom pom lub teeb pom kev zoo LED nrog tsuas yog ib qho, 1.5V roj teeb.
Kauj Ruam 1: Cov Qauv Tsim
Kuv paub tias kuv yuav tsum tuaj yeem siv lub zog hloov pauv kom txhawb qhov hluav taws xob qis los ntawm lub roj teeb, txawm li cas los kuv tsis xav tias kuv tuaj yeem tau txais 70V yooj yim. Kuv tau sim siv tshwj xeeb txhawb nqa LED tsav ICs nrog kev ua tiav, tab sis cov ICs xav tau 3V lossis siab dua los ua haujlwm. Ntau kuv sim nrog qhov yooj yim, ob lub transistor Joule Thief (thaiv cov oscillator) Circuit. Kuv tsis muaj lub transistor uas tuaj yeem tiv taus 70V, yog li kuv tau siv lub tshuab hluav taws xob them nqi kom ob npaug ntawm Joule Thief. Txoj kev no transistor tau nthuav tawm tsuas yog ib nrab ntawm qhov tso tawm zaum kawg, lossis 35V.
Lub voj voog no ua haujlwm, thiab kuv zoo siab nrog qhov ua tau zoo ib ntus, tab sis tseem xav txo qhov suav suav. Yog li kuv tau txais ob peb lub transistors uas tuaj yeem ua haujlwm dhau 70V ntawm qhov hluav taws xob, thiab sim saib seb kuv puas tuaj yeem teeb lub teeb pom kev zoo LED nrog tsuas yog Joule Thief. Tom qab qee qhov kev hloov kho ntawm cov khoom muaj txiaj ntsig Kuv pom lub Circuit Court ua haujlwm zoo ib yam li lub twj tso kua mis pab Joule Thief Circuit!
Kauj Ruam 2: Kawg Circuit Court
Yog li ntawm no yog qhov kawg Circuit Court. Nws yog qhov dag dag yooj yim, tab sis ua haujlwm zoo ib yam li yav dhau los nrog ntau yam ntxiv.
Qhov tseem ceeb yog siv transistors uas tuaj yeem ua haujlwm siab txaus. Kuv siv KSP06, uas muaj Vceo ntawm 80V, tsuas yog siab txaus rau txoj haujlwm no. Lwm qhov tshwj xeeb xws li hfe thiab Vbe tseem zoo txaus los ua haujlwm ntawm cov khoom siv hluav taws xob qis.
Kuv tau kho cov khoom kom tsis txhob kos ntau dhau tam sim no, txij li lub zog siv yog AAA roj teeb uas me me. Koj tuaj yeem kho R1, R2, ntxiv rau C1 kom kos ntau dua tam sim no thiab teeb LED nrog lub zog ntau dua yog tias koj xav tau. Piv txwv li R1: 470 ohm, R2: 47k ohm, thiab C1: 22pF yuav tsim tawm ntau dua, tab sis lub roj teeb yuav ntws sai dua.
Kauj Ruam 3: Kov Kawg
Kuv tsim PCB kom haum rau hauv lub raj iav kuaj.
Nws siv lub roj teeb AAA nkaus xwb (alkaline lossis NiMH) thiab kos txog 50 mA.
Kuv kuj ntxiv qhov qaij hloov kom qhib lub LED thaum chav nyob sawv ntsug, thiab tua thaum so. Kuv tso lub chav tso rau hauv lub raj kom nws zoo li lub raj yas.
Kuv muab PCB thiab cov khoom sib dhos ua ib qho yooj yim rau sib dhos ua ke - muaj nyob ntawm kuv lub vev xaib: https://www.theledart.com/products/jt-filament - yog tias koj xav tau.
Pom zoo:
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