Xyoo Tshiab yog hnub ci tshaj plaws thiab zoo tshaj plaws rau feem coob ntawm peb lub tebchaws. Cov neeg dai Christmas ntoo thiab tos rau tej yam kaj thiab zoo. Txawm li cas los xij, nws tsis tuaj yeem tsim kom muaj lub siab nyiam yam tsis muaj lub teeb pom kev zoo, uas feem ntau yog garlands. Lawv yog tsim los ntawm incandescent teeb, neon. Txawm li cas los xij, cov khoom siv LED raug suav hais tias yog qhov kev lag luam zoo tshaj plaws thiab nyab xeeb. Xws li garlands tuaj yeem sib sau ua ke txawm nrog koj tus kheej txhais tes. Nws tsuas yog tsim nyog ua raws li qee cov cai ntawm kev teeb tsa. Hnub no tsab xov xwm yuav qhia koj txog kev sib txuas ntawm LEDs, nws ua li cas thiab thaum twg nws siv.
Yuav ua li cas hloov pauv LED-cov ntsiab lus muaj nyob
Muaj ob hom kev sib txuas tseem ceeb - serial thiab parallel. Txhua tus ntawm lawv yog siv nyob rau hauv nws cheeb tsam. Piv txwv li, yog hais tias peb tab tom tham txog Xyoo Tshiab garlands hluav taws xob, ces ib tug serial kev twb kev txuas yog feem ntau ua ntawm no. Nws tso cai rau siv qhov muag teev incandescentlos yog neon, tsim rau tsis tshua muaj hluav taws xob. Piv txwv li, 4.5 V qhov muag teev txuas nrog hauv koob hauv tus nqi ntawm 50 pcs. ywj siab tiv taus ib qho hluav taws xob ntawm 220 V. Nrog xws li kev hloov, qhov ntxiv ntawm ib qho emitter txuas nrog lub rho tawm ntawm lwm tus, thiab lwm yam nyob rau hauv tag nrho cov Circuit Court.
Tab sis txoj cai no tsis siv rau LED Christmas hluav taws xob garlands. Qhov tseeb yog tias qhov hloov pauv tam sim no ntawm lub tsev network tsis haum rau kev ua haujlwm raug ntawm cov khoom siv LED. Rau kev ua haujlwm ib txwm muaj, lawv xav tau lub zog ruaj khov. Qhov no txhais tau hais tias qhov voltage nyob rau hauv txhua rooj plaub yuav tsum tsawg. Tom qab tag nrho, nws yooj yim dua kom ruaj khov 12V tshaj 220V.
Lub nuances ntawm kev sib txuas LEDs
Raws li koj paub, muaj kev sib txuas thiab sib txuas ntawm LEDs. Nyob rau hauv cov ntaub ntawv no, cov lus nug tshwm sim, vim li cas ib tug xaiv rau garlands nrog incandescent thiab neon teeb, thiab lwm yam rau LED ntsiab? Nws yog hais txog cov yam ntxwv ntawm cov emitters. Txhua lub LEDs muaj nws tus kheej qhov ntsuas hluav taws xob poob. Muab hais tias cov khoom siv hluav taws xob ruaj khov tsis muaj zog heev, ntau ntawm LED cov ntsiab lus tsis tuaj yeem txuas nrog rau nws. Nws yog vim li no tias kev sib txuas sib txuas yog siv rau hauv garlands.
Ib tug neeg yuav hais tias nws txaus los siv lub zog PSU, vim tias tib lub sijhawm nws yuav yooj yim los tswj qhov voltage ntawm LEDs (nws yuav sib npaug ntawm lawv txhua tus). Tab sis ntawm no los qhov teeb meem. Txawm hais tias koj coj ib lub garland zoo tib yam ntawm LEDs rau 50 LED ntsiab lus, lub adapter yuav yogloj txaus muab zais rau hauv ib tsob ntoo me.
Cov ntaub ntawv tseem ceeb! Yog tias qhov hluav taws xob poob thoob plaws cov chips siab tshaj qhov ntsuas ntawm lub hwj chim, xws li lub adapter yuav tsis tuaj yeem ua haujlwm ntev.
Parallel thiab series txuas ntawm LED Cheebtsam: video piav qhia
Qee cov ntaub ntawv hais txog kev sib txuas LED tuaj yeem pom hauv video hauv qab no. Nws qhia meej tias nws yog dab tsi.
Yuav ua li cas rau kev hloov LED-cov ntsiab lus
Kev sib txuas ntawm LEDs txhais tau hais tias siv cov kev txwv cov resistors thiab emitters uas yog ze li sai tau rau ib leeg ntawm cov yam ntxwv. Yog tias kev xaiv ntawm LED-cov ntsiab lus raws li cov ntsuas tau yooj yim, ces qhov kev tawm tsam tsim nyog rau lawv txoj haujlwm raug yuav tsum tau suav nrog. Nws tsim nyog txheeb xyuas seb cov qauv twg siv rau qhov no.
Thaum LEDs txuas nrog rau qhov sib npaug, kev suav ntawm kev tiv thaiv yuav tsum pib nrog kev suav ntawm nws qhov kev tiv thaiv nominal, ntsuas hauv ohms. Txhawm rau ua qhov no, nws yog qhov yuav tsum tau faib qhov sib txawv ntawm qhov sib txawv ntawm lub zog hluav taws xob thiab cov khoom siv LED nws tus kheej los ntawm cov khoom ntawm LED tam sim no los ntawm qhov sib txawv ntawm 0.75. Cov ntaub ntawv ntawm LED cov ntsiab lus yog muab los ntawm cov ntaub ntawv thev naus laus zis.
Rau qhov kev ua haujlwm ib txwm muaj ntawm lub voj voog, yuav tsum suav ib qho ntxiv. Thaum LEDs txuas nrog nyob rau hauv parallel, kev xam ntawm lub hwj chim resistor kuj tseem ceeb heev. Nws yog tsim raws li hauv qab no. Nws yog ib qho tsim nyog los faib cov square ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob LED los ntawm qhov tau txais los ntawm kev suav yav dhau los.resistance.
Yuav ua li cas ua ib lub garland ntawm LEDs nrog koj tus kheej tes
Tom qab xam cov resistors thiab soldering lawv mus rau cathodes ntawm cov ntsiab lus LED, koj yuav tsum txiav txim siab ntawm qhov voltage ntawm lub hwj huam mov uas yuav siv. Qhov kev xaiv yooj yim tshaj plaws yog siv lub tshuab hluav taws xob los ntawm ib qho qub Suav garland. Cov cuab yeej no yuav tsis tsuas yog ua tus stabilizer xwb, tab sis kuj tshem tawm cov teeb meem ntawm yuav ua li cas kom cov LEDs nyem thaum txuas mus rau qhov sib npaug.
Tom ntej no, koj yuav tsum ncab cov hlau, kos cov chaw yav tom ntej ntawm cov emitters nrog tus cim. Raws li cov cim, me me ntawm rwb thaiv tsev raug tshem tawm - 15-20 mm txhua. Txoj haujlwm no yuav tsum tau ua tib zoo ua kom tsis txhob ua rau cov tub ntxhais hlau puas. Muaj irradiated qhov chaw huv, koj tuaj yeem muab cov LEDs rau lawv. Lub resulting soldering yuav tsum tau insulated ua ke nrog ib feem ntawm lub LED lub caij, vim hais tias ntawm lub zog ntawm kev twb kev txuas yuav nce. Rau cov laj thawj no, nws yog qhov zoo dua los siv cov nplaum nplaum nplaum, uas yuav tsis cuam tshuam nrog kev nkag mus ntawm lub teeb flux.
Kev sib hloov ntawm qhov tshwm sim garland nrog tus tswj
Yog tias koj qhib rooj plaub ntawm cov cuab yeej suav, ntawm sab nraud ntawm lub zog xaim, ntawm ntug, koj tuaj yeem pom 2 lossis 3 qhov kev sib cuag. Yog tias muaj 2, nws paub meej tias yuav ua li cas rau solder, yog tias muaj 3, ces siv cov huab cua, thiab lub hauv paus tseem khoob.
Hauv kev ua haujlwm zoo li no, koj yuav tsum tsis txhob siv cov hlau nplaum uas muaj zog nrog lub hau tuab - muaj qhov txaus ntshai ntawm kev puas tsuaj rau cov khoom siv. Yog tias tsis muaj lwm txoj hauv kev tawm, nws yog qhov tsim nyog yuav tsum tau cua ntawm cov hlau tsis muaj rwb thaiv tsev nyob ib ncig ntawm lub taub,nrog rau ntu ntawm 4 lossis 6 mm 2 kom qhov kawg ntawm cov tub ntxhais yog 3-4 cm ntev dua. ua hauj lwm raug dua.
Tom qab cov LEDs sib txuas ua ke thiab cov tswj hwm suav tau dhau los ua ib lub paj, koj tuaj yeem tshawb xyuas nws los ntawm kev tig lub cuab yeej ua los ntawm koj tus kheej hauv lub network. Lub pob ntawm lub cev yuav tso cai rau koj hloov flashing hom.
Parallel txuas ntawm LED strips
Ntu ntawm LED sawb thaum txuas nrog lub zog hluav taws xob yuav tsum tsis txhob ntev tshaj 5 m. Tab sis yog xav tau ntev dua, lawv txuas nrog. Tab sis koj yuav tsum ua qhov no tsuas yog nyob rau hauv parallel. Ntau tus "craftsmen" hais tias serial switching kuj yuav ua tau, tab sis qhov no yog ib tug loj heev misconception. Qhov tseeb yog hais tias nrog xws li ib tug kev twb kev txuas, lub load ntawm conductive threads ntawm thawj daim kab xev nce sharply, raws li ib tug tshwm sim ntawm uas lawv pib hlawv tawm. Tab sis nrog kev sib txuas ntawm 12 volt LEDs, qhov no tsis tshwm sim - cov lem yog tsim los rau ib lub strip ntev txog li 5 m.
LED strips kuj siv los ua garlands. Lawv daim ntawv thov feem ntau yog txoj kev teeb pom kev zoo ntawm hom "Duralight". Rau nws cov khoom siv, ib lub raj silicone yog siv, uas yog muab tso rau hauv LED sawb. Xws li garlands yog Frost-resistant thiab noo noo-pov thawj, tsis ntshai los nag thiab av. Lawv yog siv rau hauv kev tsim ntawm txoj kev Christmas ntoo, ntoo trunks, stretched ntawm lampposts.
Ntawm ntawm soldering SMD Cheebtsam
SMD LEDs yog siv los ua LED strips. Lawv peculiarity yog tias tsis muaj cov cuab yeej tshwj xeeb nws yuav tsis muaj peev xwm los hloov cov khoom tawg. Qhov tseeb yog tias qhov chaw nres tsheb xav tau ntawm no - nws yog ib qho yooj yim rau overheat chips uas tsis tuaj yeem tiv taus kub dhau nrog cov hlau zoo tib yam. Muaj ntau zaus thaum cov kws tsim khoom hauv tsev uas muaj kev ntseeg siab dhau los tau tswj hwm los hloov cov khoom siv SMD siv cov khoom siv ib txwm siv, txawm li cas los xij, tom qab 2-3 teev ua haujlwm tas mus li, LED sawb ua tsis tau dua.
Feem ntau, LED sawb yog ib qho khoom siv thoob ntiaj teb uas siv ntau yam. Nws tuaj yeem yog lub teeb pom kev ntawm lub qab nthab, rooj tog zaum, lub tsheb sab hauv lossis lub khoos phis tawj keyboards… tsuas yog rau npe ob peb.
Qhia ua ib lub garland
Thaum xaiv cov xim ntawm lub neej yav tom ntej Christmas tsob ntoo kho kom zoo nkauj, tsis txhob mloog cov ntsiab lus RGB. Sib sau ua ke rau ib tug novice DIYer tuaj yeem dhau los ua qhov nyuaj, thiab siv nyiaj ntxiv los txuas rau lawv li cov khoom qub yuav yog khoom kim heev. Nws yog qhov zoo tshaj plaws los txuas LEDs ntawm cov xim sib txawv nyob rau hauv parallel. Tau kawg, koj yuav tsum tau ua cov kev suav ntxiv ntawm qhov tsis sib xws ntawm cov resistors, tab sis qhov tshwm sim yuav nthuav ntau dua li thaum siv cov emitters dawb.
Nws yog qhov tseeb tias qhov ua tiav LED garland hauv khw yog pheej yig heev. Tab sis nws yuav tsum to taub tias cov khoom siv tes ua yuav zoo li ntau zauszoo nkauj dua. Thiab qhov kev txaus siab los ntawm qhov tseeb tias txhua yam ua tiav raws li kev npaj yuav ntsuas tsis tau los ntawm ib qho nyiaj.
Thaum ua cov khoom dai zoo li no, koj yuav tsum tau ceev faj heev, kom tsis txhob muaj qhov liab qab sab laug, thiab cov xov hlau nyob hauv tus maub los tsis sib tshooj. Kev sib cuag yuav tsum tau soldered nrog zoo, thiaj li tsis txhob cua sov. Nws yuav tsum nkag siab tias nws yuav nyob ntawm tsob ntoo Christmas, thiab cov koob tuaj sai sai vim yog cov resin muaj nyob hauv nws.
Nws ua rau kev txiav txim siab los hloov lub hwj chim cable los ntawm tus maub los rau lub qhov hluav taws xob - Suav tuam ntxhab sim txuag txhua yam. Nws yog vim li no tias cov strands ntawm cov hlau no me ntsis thicker dua cov plaub hau. Tom qab qhib rooj plaub, nws ua rau kev txiav txim siab zoo ntawm kev sib txuas thiab kev sib cuag - hauv cov qauv pheej yig no yog qhov mob.
Yam yuam kev thaum tsim kev sib txuas ua ke
Tsis muaj leej twg muaj kev nyab xeeb ntawm qhov no, tab sis koj yuav tsum sim tiv thaiv qhov no kom tsis txhob tshwm sim. Qhov yuam kev tseem ceeb uas tau ua tsis yog los ntawm cov pib xwb, tab sis qee zaum los ntawm cov kws tshaj lij, yog:
- Tsis quav ntsej qhov xav tau txuas rau LED nrog qhov txwv tsis pub muaj zog.
- Hloov ntau lub teeb ci LED los ntawm ib qho kev tawm tsam. Nyob rau hauv xws li ib tug teeb meem, yog hais tias ib tug ntawm cov ntsiab yog tawg, lub tam sim no ntawm lwm tus neeg yuav nce ho. Qhov no yog fraught nrog, nws tsis tsim nyog tham txog.
- Series txuas ntawm LEDs nrog cov yam ntxwv sib txawv.
- Tsis txaus tiv thaiv. Tam sim no hla dhaulub emitter yuav loj dhau, uas yuav ua rau kom qhov kub thiab txias ntawm lub caij.
- Txuas LEDs rau hauv tsev neeg lub network yam tsis muaj qhov rov qab voltage limiter. Lub network tam sim no yog 220 V AC, uas txhais tau hais tias lub sijhawm thaum lub sinusoid hla lub axis, p-n junction ntawm lub caij yuav tawg, uas yuav ua rau nws tsis ua hauj lwm.
- Tsis muaj zog tiv thaiv. Txawm tias muaj qhov sib npaug ntawm cov LEDs, qhov kev ua yuam kev no yuav ua rau muaj cua sov ntawm cov resistor, melting ntawm rwb thaiv tsev thiab luv luv Circuit Court.
Nws tseem hais qhia cov tswv hauv tsev kom mob siab rau txoj haujlwm no thiab zam dhau qhov yuam kev.
Siv ib qho epilogue
Yuav kom paub qhov kev sib txuas hu ua ntu thiab qhov twg yog qhov sib npaug thiab ua tau, txhua tus tswv tsev hwm tus kheej yog lub luag haujlwm. Cov txuj ci no yuav muaj txiaj ntsig tsis yog hauv kev tsim cov garlands xwb. Ntau hom kev sib txuas tuaj yeem ntsib txhua qhov chaw. Piv txwv li, nyob rau hauv ib lub tsev hluav taws xob network, tag nrho cov qhov (socket) txuas nyob rau hauv parallel, thaum switches txuas nrog series. Qhov tseem ceeb tshaj plaws yog nco ntsoov cov kev cai yooj yim, ua raws li lawv thiab ua tib zoo mloog rau tej yam me me. Hauv qhov no, txhua txoj haujlwm uas tus tswv tsev ua haujlwm yuav ua kom muaj kev nyab xeeb, ntseeg tau thiab nyob rau theem tsim nyog.
