LEDs yog ib qho ntawm cov khoom siv hluav taws xob uas xav tau tshaj plaws, thiab hauv ntau qhov kev lag luam. Qhov tseem ceeb tshaj plaws nuance ntawm lawv txoj kev koom tes yog kev faib tawm kom raug. Nws cov txheej txheem yuav ua raws li kev siv cov cim tshwj xeeb LED. Lawv tuaj yeem yog dab tsi? Dab tsi yog kev lag luam tshwj xeeb ntawm lawv daim ntawv thov?
Taw qhia rau LEDs
Ua ntej kawm txog cov ntsiab cai ntawm kev kos npe ntawm LEDs tau ua tiav, cia peb xav txog cov ntaub ntawv tseem ceeb ntawm cov khoom lag luam sib xws. Lawv yog dab tsi?
Ib qho LED yog ib qho tshwj xeeb diode uas ci thaum muaj hluav taws xob dhau los ntawm nws. Cov khoom tseem ceeb ntawm cov khoom no yog cov khoom siv semiconductor. Dab tsi additives nws muaj txiav txim cov xim thaum lub LED glows. Piv txwv li, yog tias txhuas ntxiv rau hauv semiconductor, ces cov xim ntawm LED uas cov hluav taws xob tam sim no txuas nrog yuav liab. Yog hais tias indium ntxiv - xiav. Hauv kev lag luam niaj hnub no, LEDs tau tsim nyob rau hauv ntau qhov kev hloov kho raws li cov ntsiab lus ntawm impurities.
SaibCov khoom lag luam (cov cim ntawm LEDs tuaj yeem cuam tshuam cov yam ntxwv no) yog siv dav hauv kev lag luam: hauv kev tsim cov teeb, TV, cov khoom siv kho kom zoo nkauj, thiab lwm yam. Nyob rau hauv cov cheeb tsam no, LEDs feem ntau tsis muaj analogues, thiab yog tias lawv muaj, ces cov khoom nug nyob rau hauv ntau rooj plaub muaj undeniable zoo.
Piv txwv li, thaum piv cov tsoos incandescent thiab LED teeb, tom kawg yuav zoo dua vim:
- lawv yuav muaj kev siv hluav taws xob qis dua;
- lawv yuav muaj lub neej ua haujlwm ntev dua;
- lawv tuaj yeem ua haujlwm ntawm qhov txo qis;
- lawv yog cov yam ntxwv ntawm ib puag ncig tus phooj ywg, kev ua haujlwm nyab xeeb.
LED tsim
Lwm yam uas yuav muaj txiaj ntsig zoo rau kev kawm ua ntej txiav txim siab yuav siv lub cim LED li cas yog qhov tsim ntawm cov khoom sib xws. Lawv suav nrog:
- lo ntsiab muag (feem ntau yog ua los ntawm epoxy resin);
-xov hu;
- crystal;
- reflector;
- electrodes;
- anode thiab cathode.
LEDs ua haujlwm li cas?
LEDs ua haujlwm li cas? Lub reflector ntawm cov khoom sib xws muaj xws li LED siv lead ua. Cov khoom sib thooj qhia txog lub kaum ntse ntse tshwj xeeb. Lub teeb tsim los ntawm kev siv hluav taws xob rau LED hla dhau cov khaubncaws sab nraud povtseg ntawm lub tsev, tom qab ntawd nws tsoo lub lens, thiab tom qab ntawd pib tawg.
Nws tuaj yeem sau tsegtias LEDs muaj peev xwm ua haujlwm hauv ob qho tib si pom xim ntau yam thiab hauv infrared. Qhov no feature qhia txog lub versatility ntawm cov khoom nyob rau hauv nqe lus nug. Cov cim LED tuaj yeem siv los qhia cov xim ntawm cov khoom lag luam. Xav txog nws cov yam ntxwv hauv kev nthuav dav ntxiv.
Dab tsi yog qhov cim ntawm LEDs los ntawm xim?
Ua ntej ntawm tag nrho, nws tsim nyog sau cia tias kev sib koom ua ke ntawm kev sib koom ua ke ntawm LEDs los ntawm cov xim ntawm lub ntiaj teb kev lag luam tseem tsis tau pom zoo. Txhua tus neeg tsim khoom siv nws txoj hauv kev los faib cov khoom lag luam. Yog tias peb tham txog kev lag luam Lavxias, hauv peb lub tebchaws kev faib cov LEDs rau hauv 4 hom yog ntau:
- liab;
- ntsuab;
- daj;
- txiv kab ntxwv.
Cia peb xav txog nws kom ntxaws ntxiv hauv cov ntsiab lus ntawm kev sau npe ntawm cov khoom cuam tshuam.
Red LEDs ntawm Lavxias teb sab lag luam: kos npe
Yog tias daim kab txaij liab siv los ua cim rau Lavxias teb sab diode, ces nws yuav yog hom AL112A(G) thiab ci liab. Yog hais tias lub cim yog sawv cev los ntawm ib tug ntsuab stripe, ces lub LED yuav muab faib ua AL112B (D) thiab yuav ci liab. Nyob rau hauv lem, lub xiav stripe qhia ib yam khoom ntawm AL112V hom. Txawm li cas los xij, nws kuj muaj xim liab. Cov LEDs hauv qab no uas cim nrog lub teeb liab yuav muaj tib xim: AL112E(K), AL301A, AL310A, AL316A, thiab PIKM02A-1K.
Txawm li cas los xij, muaj cov LEDs liab:
- AL112Zh(L) thiab AL307G nrog ntsuab dot;
- AL112I(M), AL310B, thiab AL316B nrogxiav dot;
-AL307A, AL307V, AL336K, as Well as KIPD02A-1K nrog cov dot dub;
- KIPD02B-1K nrog ob lub dots dub;
- AL301B, AL336B, as well as KIPM02B-1K nrog ob lub dots liab.
Tseem muaj cov khoom lag luam ntawm hom AL307B yam tsis muaj cim - kuj muaj lub ntsej muag liab. Tam sim no cia peb xav txog dab tsi cim ntawm ntsuab LEDs yog siv nyob rau hauv Lavxias teb sab lag luam.
Green LEDs
Yog li, cov khoom hauv qab no muaj xim ntsuab ci:
- KIPD02V-1L nrog cov dot dub;
- AL336I nrog dawb dot;
- AL336G, ntxiv rau KIPM02G-1L nrog ob lub cim ntsuab;
- KIPD02G-1L - nrog ob lub dots dub.
Cov khoom tom ntej uas muaj nyob rau hauv Lavxias teb sab lag luam yog daj. Xav txog dab tsi yog qhov cim ntawm LEDs, nws qhov kev txiav txim siab - cuam tshuam rau cov khoom ntawm cov khoom sib xws.
Yellow LEDs
LEDs uas muaj lub teeb daj muaj xws li:
- AL336D - nrog ib qho xim daj, AL336E - nrog ob, AL336Zh - nrog peb;
- AL307D, KIPD02E-1ZH - nrog ib qho xim dub, AL307E thiab KIPD02E-1ZH - nrog ob;
- KIP02D-1ZH - nrog peb cov dots ntsuab.
Cov khoom lag luam tom ntej yog txiv kab ntxwv. Cia peb kawm seb qhov cim ntawm lub teeb-emitting diodes (LED) ntawm cov khoom siv yog dab tsi.
txiv kab ntxwv LEDs
Cov khoom uas muaj txiv kab ntxwv ci muaj xws li:
- LED AL307I - cim nrog lub cim dawb;
- LED AL307L - nrog ob lub dots dawb.
Muaj ntau txoj hauv kev los siv cov khoom hauv nqe lus nug. Raws li, cov cim ntawm lub teeb-emitting diodes (LED) tuaj yeem raug cais tawm ntawm lwm qhov chaw. Yog li, ntawm feem ntau qhov chaw ntawm daim ntawv thov ntawm cov khoom no yog tsim cov teeb tapes. Xav txog yuav ua li cas LED daim ntawv lo yog siv thaum xav txog kev tsim cov khoom siv no.
Txhim kho cov cim LED strips
Nws yog ib qho tsim nyog sau cia tias kev tsim cov LED strips yog ib hom kev lag luam uas muaj cov yam ntxwv los ntawm tib qho kev sib koom ua ke ntawm kev tsim cov khoom lag luam rau kev sau npe ntawm cov khoom. Yog li, txhawm rau txheeb xyuas LED strips, ib qho kev sib koom ua ke ntawm 8 lub ntsiab yog siv. Nws yog sawv cev hauv cov qauv hauv qab no.
Nyob rau hauv thawj lub ntsiab lus ntawm cov cai sib raug, qhov tseeb, lub npe ntawm cov khoom tseem ceeb ntawm daim kab xev - LED, LED yog encrypted.
Cov xim ntawm cov khoom sib raug yog tshwm sim hauv qhov thib ob ntawm cov cai:
- R - liab - los ntawm Askiv Liab;
- G - ntsuab - los ntawm ntsuab;
- B - xiav;
- CW - dawb;
- RGB code qhia qhov tseeb tias LED yog ntau xim.
Nyob rau hauv peb lub ntsiab lus ntawm cov lus nug, los ntawm qhov uas LED yog encrypted - lub cim ntawm tus pins. Piv txwv li, lawv tuaj yeem raug faib ua SMD. Ntawd yog, cov cai yuav qhia tau tias cov nti yog npaj rau kev teeb tsa ncaj qha rau ntawm lub rooj tsav xwm luam tawm, ua ib feem ntawm qhov chaw mounting. Nyob rau hauv lem, lub unified code kuj muajCov cim ntawm DIP hom LEDs tau raug siv, uas yuav qhia tau tias cov khoom tsim los rau kev teeb tsa tsis nyob ntawm qhov chaw, tab sis hauv qhov.
4 lub ntsiab lus ntawm kev sib koom ua ke LED code qhia txog lub cev loj hauv millimeters. Nyob rau hauv 5th - tus naj npawb ntawm cov khoom sib raug rau 1 meter ntawm daim kab xev uas lawv tau nruab.
Nyob rau hauv 6th - chav kawm ntawm kev tiv thaiv ntawm LED los ntawm cov teebmeem ntawm ntau yam sab nraud. Ntawm no, piv txwv li, siv tus IP code, uas qhia txog qhov tseeb tias chav kawm tiv thaiv tau teev tseg raws li kev lag luam tus qauv rau kev tiv thaiv cov khoom siv hluav taws xob IEC-952.
Lub ntsiab lus thib 7 qhia txog qib kev tiv thaiv ntawm LED. Cov lej muaj nyob ntawm no:
- 0, qhia tias LEDs tsis muaj kev tiv thaiv los ntawm lwm yam;
- 1, qhia tias cov khoom muaj kev tiv thaiv los ntawm kev nkag mus ntawm cov khoom uas muaj txoj kab uas hla ntawm 50 mm lossis ntau dua;
- 2, xav txog tias LED tiv thaiv cov khoom nrog lub cheeb ntawm 12-80 mm;
- 3 qhia kev tiv thaiv cov khoom uas muaj txoj kab uas hla ntawm 2.5 hli lossis ntau dua;
- 4, qhia txog kev tiv thaiv ntawm LED los ntawm cov khoom uas muaj txoj kab uas hla ntawm 1 hli lossis ntau dua;
- 5, qhia tias cov khoom muaj kev tiv thaiv los ntawm kev nkag mus ntawm cov plua plav hauv tus nqi uas yuav ua rau muaj kev ua txhaum ntawm kev ua haujlwm ntawm LED;
- 6, uas qhia tias tsis muaj plua plav nkag mus rau hauv cov khoom.
Thiab, 8 lub ntsiab lus ntawm kev sib koom ua ke qhia txog qib kev tiv thaiv ntawm cov khoom los ntawm kev nkag muskua. Cov lej tuaj yeem kho tau hauv nws:
- 0, uas qhia tias LED tsis tiv thaiv cov kua dej;
- 1, qhia txog qhov tseeb tias cov dej ntws uas poob vertically tsis tuaj yeem nkag mus rau cov khoom;
- 2, uas qhia tias LED tiv thaiv los ntawm cov dej ntws poob ntawm lub kaum sab xis ntawm 15 degrees;
- 3, kho kev tiv thaiv cov tee uas poob ntawm lub kaum sab xis ntawm 60 degrees;
- 4, qhia tias LED muaj kev tiv thaiv los ntawm cov dej ntws uas poob ntawm cov khoom ntawm txhua lub kaum ntse ntse;
- 5, uas qhia tau tias cov khoom muaj kev tiv thaiv los ntawm kev cuam tshuam ntawm lub dav hlau dej ntawm ib txwm siv;
- 6, qhia tias LED tsis tuaj yeem nkag los ntawm cov dej dav hlau muaj zog;
- 7, qhia tias dej yuav tsis nkag mus rau hauv cov khoom txawm tias thaum muab tso rau hauv qhov tob ntawm 15 cm;
- 8, uas qhia tias LED yuav nyob twj ywm ua haujlwm txawm tias nyob hauv dej ntev.
Deciphering code rau kev sib sau ua ke ntawm LED sawb: piv txwv
Yuav ua li cas piv txwv ntawm kev sib koom ua ke zoo li hauv cov qauv peb tau txiav txim siab?
Yog li, piv txwv li, cov cim ntawm SMD LEDs yuav zoo li no: LED-R-SMD-5050/60 IP68. Nws txhais tau tias:
- nws yog LEDs tso rau ntawm daim kab xev;
- cov khoom lag luam muaj lub teeb liab - R;
- daim kab xev yog tsim los ntawm SMD hom LEDs - uas yog, tsim rau nto mounting;
- LED muaj lub cev loj ntawm 50 x 50 square meters. millimeters;
- raudaim kab xev tso 60 LEDs, qhov tseeb;
- raws li cov qauv thoob ntiaj teb, daim kab xev tuaj yeem siv rau hauv qhov chaw muaj plua plav, nrog rau thaum muab tso rau hauv dej rau lub sijhawm ntev - IP68.
LED strip manufacturers yog li muab lawv cov neeg siv cov khoom lag luam yooj yim thiab qhia tau zoo. Nrog nws cov kev pab, ob qho tib si SMD LEDs thiab cov uas muaj nyob rau hauv qeb DIP tuaj yeem raug cim tau zoo.
Ntawm lwm yam khoom lag luam, kev tsim khoom siv cov khoom lag luam hauv nqe lus nug yog lub teeb tsheb thiab teeb nyem. Nws yuav pab tau kom kawm tau li cas, raws li, lub cim ntawm lub teeb taub hau rau LEDs, nrog rau cov khoom nruab rau hauv lub teeb nyem ntawm ntau hom.
Txoj kev cim ntawm LEDs rau lub taub hau
Cov yam ntxwv tseem ceeb tshaj plaws ntawm lub teeb LED teeb tsa hauv lub taub hau ntawm lub tsheb yog hom ntawm nws lub hauv paus. Qhov kev ntsuas no yuav tsum tau coj ua feem ntau thaum xaiv lub teeb lub tsheb - hais txog nws txoj kev siv halogen.
Piv txwv li, yog tias koj xaiv lub teeb taws teeb lub taub hau, tom qab ntawd cov kev vam meej hauv qab no tuaj yeem pom ntawm nws cov cim thiab qhov ci:
- cim H1 sib raug rau lub zog ntawm 55 W thiab qhov ci ntawm 1550 lumens;
- H3 - lub zog 55W thiab ci ci 1450;
- H4 - 55 thiab 1650 rau cov nqaj siab, 1000 rau cov nqaj qis;
-H7 - 55 thiab 1500;
- H8 - 35 thiab 800;
- H9 - 65 thiab 2100;
- H11 - 55 thiab 1350;
- HB2 - 60 thiab 1500 rausiab beam, 910 for low beam;
- HB3 - 60 &1860;
- HB4 - 51 thiab 1095.
Cov kws tshaj lij pom zoo xaiv cov teeb ci LED uas ci dua li cov khoom siv halogen me ntsis.
Muaj lwm txoj hauv kev rau kev faib tawm, nyob rau hauv uas lub cim ntawm LED teeb tuaj yeem siv tau. Yog li, piv txwv li, muaj cov khoom sib cais uas tau nruab rau hauv lub teeb pos huab - piv txwv li, H8, H10, thiab H11. Lub teeb ntawm hom W5W, T10, thiab T4W kuj tau nruab rau hauv txoj hauj lwm thiab sab tig teeb. Qhov tshwj xeeb ntawm LED, yog li ntawd, raug xaiv raws li lub hom phiaj ntawm lub teeb taub hau.
Cov khoom tom ntej uas LEDs tuaj yeem siv tau yog lub teeb nyem. Kev faib tawm ntawm cov khoom lag luam kuj muaj nuances. Lub cim ntawm LEDs rau lub teeb nyem, nyob ntawm txoj cai ntawm cov tuam txhab, tuaj yeem yog ib qho zoo ib yam li qhov uas qhia txog kev faib tawm ntawm LED strips, uas peb xav txog saum toj no, los yog txawv kiag li (txawm hais tias, ntawm chav kawm, nws yog nyob rau hauv kev txaus siab ntawm lub chaw tsim tshuaj paus los ua kom ze li sai tau rau kev lag luam thoob plaws txoj hauv kev).
Piv txwv li, peb tuaj yeem txiav txim siab qhov kev faib tawm ntawm LEDs rau lub teeb nyem ntawm Asmeskas tuam txhab CREE - ib qho ntawm cov thawj coj hauv ntiaj teb kev ua lag luam rau cov khoom lag luam.
CREE LED teeb nyem: kev faib tawm
Cov khoom lag luam ntawm hom no tau muab faib ua 2 pawg loj - XLamp teeb nyem, nrog rau cov ci ntsa iab. Txhua pab pawg tau muab faib ua cov tsev neeg, uas txawv ntawm hom hull thiab kev ua haujlwmtsis muaj. Qhov kev faib tawm tseem ceeb hauv qhov no yog qhov tso cai tam sim no uas dhau los ntawm cov siv lead ua tam sim no hauv cov qauv ntawm LED.
Nws tuaj yeem raug sau tseg tias lub teeb nyem muaj zog tshaj plaws ntawm XLamp hom los ntawm CREE suav nrog cov khoom lag luam uas muaj qhov sib piv ntawm ntau tshaj 350 mA. Nyob rau hauv lem, cov khoom siv ultra-ci ua haujlwm ntawm qhov kev ua haujlwm qis dua - feem ntau tsis tshaj 50 mA. Hais lus tshwj xeeb txog kev faib tawm ntawm CREE cov khoom lag luam, lub teeb uas yog pawg Xlamp tau muab faib ua cov hom hauv qab no: XR, XP, MC.
Lawv tau cim, tig, siv tib lub npe.
Nws tuaj yeem raug sau tseg tias lawv yog txhua tus SMD LEDs. Kev sau npe uas yuav cuam tshuam qhov tseeb no yuav tsis raug siv rau hauv qhov no, vim tias tsis muaj cov khoom lag luam hauv cov kab sib txuas uas tsis ua raws li qhov ntsuas no. Nyob ntawm cov siv lead ua tshwj xeeb, cov cim ntawm cov LEDs no tuaj yeem ntxiv nrog cov ntawv C lossis E.
Nyob rau hauv lem, cov LEDs cais raws li super-ci tau muab faib ua pawg, uas txawv nyob rau hauv cov kev xaiv ua. Yog li, lub tuam txhab tsim cov khoom lag luam uas tau sau tias yog P4 - lawv muaj ib qho square seem thiab 4 coj. LEDs yoog rau saum npoo mounting yog pawg los ntawm cov chaw tsim khoom rau hauv PLCC qeb.
CV
Yog li, peb tau txiav txim siab tias qhov twg yog qhov cim-tus yam ntxwv uas txiav txim siab qhov tsis muaj ntawm cov khoom xws li LEDs. Txuas lawv, loj,kev khiav hauj lwm tej yam kev mob, kev ruaj ntseg thiab ntau lwm yam parameters yuav qhia tau siv cov ntaub ntawv muaj feem xyuam. Feem ntau lees txais kev faib tawm ntawm LEDs hauv kev lag luam thoob ntiaj teb tsis tau pom zoo. Uas, txawm li cas los xij, tej zaum yuav yog qhov laj thawj zoo vim tias cov khoom siv no tau siv dav hauv kev lag luam.
Tib lub sijhawm, hauv qee thaj chaw uas siv LEDs, lawv cov cim cim tuaj yeem sib koom ua ke. Piv txwv li, qhov no siv rau kev tsim cov LED strips. Siv cov cim cim kev sib koom ua ke uas muaj 8 lub ntsiab lus, tus neeg siv tuaj yeem txiav txim siab qhov tseem ceeb ntawm cov khoom yuav khoom.
Tab sis ntau zaus, txhawm rau kom tau txais cov ntaub ntawv txhim khu kev qha txog LEDs, koj tsuas yog siv cov kev faib tawm thiab cov ntawv lo uas tau tsim los ntawm cov chaw tsim khoom tshwj xeeb. Lawv tuaj yeem ua tau zoo ib yam li cov uas qhia txog cov kev sib tw ntawm cov koom haum sib tw, lossis tshwj xeeb kiag li.
Nyob rau hauv ntau qhov xwm txheej, cov qauv rau kev faib cov LEDs tsis tuaj yeem yog lawv cov yam ntxwv zoo li cov khoom lag luam ywj pheej, tab sis qhov tsis muaj qhov kawg ntawm cov khoom uas lawv tau teeb tsa. Piv txwv li, raws li cov hauv paus ntsiab lus no, nws muaj peev xwm faib cov khoom siv hauv kev tsim kho ntawm lub tsheb headlights - nyob rau hauv cov nqe lus ntawm kev siv tau zoo tshaj plaws ntawm LED marking rau cov neeg siv kawg. Txawm li cas los xij, sab nraum cov ntsiab lus ntawm cov khoom kawg, kev faib tawm thiab, vim li ntawd, kev sau npe ntawm LEDs tuaj yeem ua raws li cov qauv sib txawv kiag li.
