Txhua Yam Koj Yuav Tsum Paub Txog LEDs: 7 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Lub Teeb Emitting Diode yog lub tshuab hluav taws xob uas tso tawm lub teeb thaum qhov hluav taws xob dhau los ntawm nws. LEDs yog qhov me me, muaj txiaj ntsig zoo, ci, pheej yig, cov khoom siv hluav taws xob. Tib neeg xav tias LEDs tsuas yog ib qho teeb pom kev zoo ib yam thiab zoo li yuav dhau mus rau qhov nthuav qhov tseeb & Cov yam ntxwv ntawm LEDs. Hauv cov lus qhia no kuv yuav qhia koj 'Txhua Yam Koj Yuav Tsum Paub Txog LEDs' uas suav nrog lawv Kev Ua Haujlwm, Tam Sim No thiab Kev Ntsuas Hluav Taws Xob, Tsim, Hom, Hom Tshuaj Tiv Thaiv rau LEDs, Siv, Xeem & yooj yim LED Circuit.

Nov yog Qhov Txuas Rau 'LED Resistor Calculator' dawb hauv app: LED Resistor Calculator. Cov app no pab koj suav qhov tsim nyog tiv thaiv tus nqi xav tau rau LED.

Keeb Kwm Ntawm LED

Tus Thawj Tub Rog Henry Joseph Round yog ib tus thawj ntawm cov tho kev hauv xov tooj cua thiab tau txais 117 daim ntawv pov thawj. Nws yog thawj tus tshaj tawm qhov kev soj ntsuam ntawm electroluminescence los ntawm lub diode, ua rau pom qhov pom ntawm lub teeb pom kev tawm. Vladimirovich Losev tau pom lub teeb tawm los ntawm carborundum point-contact junctions. Hauv nws txoj haujlwm ua tus kws tshaj lij xov tooj cua, nws tau pom tias siv lead ua diodes siv hauv cov xov tooj cua tau txais lub teeb tawm thaum tam sim no tau dhau los ntawm lawv. Xyoo 1927, Losev luam tawm cov ntsiab lus hauv phau ntawv xov xwm Lavxias txog nws kev ua haujlwm ntawm lub teeb ci-emitting diodes. Ob peb xyoos tom qab Nick Holonyak, Jr. tau tsim thawj qhov pom-pom (xim liab) LED xyoo 1962 thaum ua haujlwm ua tus kws tshawb fawb txog kev tshawb fawb ntawm General Electric Company lub chaw kuaj mob hauv Syracuse, New York.

Daim Ntawv Teev Npe:

• Cov xim sib txawv LEDs - AliExpress
• RGB LEDs - AliExpress
• IR LEDs - AliExpress

Kauj Ruam 1: Kev Sau & Ua Haujlwm

DUAB:

1. Kev txiav txim siab LED.
2. Sab saum toj pom ntawm Electodes ntawm LED. (loj-cathode, me dua-anode).
3. Kaw ntawm Anode thiab Cathode ntawm LED. (LED hlais ib nrab).
4. Anode thiab Cathode ntawm LED tshem tawm los ntawm plhaub yas.

Muaj pes tsawg leeg

LED feem ntau yog ua los ntawm Gallium (Ga), Arsenic (Raws li), thiab Phosphorus (P). Niaj hnub nimno LEDs tsis yog hom GaAsP - lwm cov khoom siv hluav taws xob semiconductor muaj ntau! Cov Semiconductors no tseem siv rau hauv lwm yam khoom siv hluav taws xob.

Ua hauj lwm

LED yog PN N Kev sib tshuam diode uas tso tawm Lub Teeb. Thaum ib qho LED nyob rau pem hauv ntej kev tsis ncaj ncees nws tso lub teeb hloov ntawm cov cua sov tsim los ntawm ib qho diode ib txwm. Thaum P-N kev sib tshuam nyob rau pem hauv ntej kev tsis ncaj ncees, nyob rau hauv rooj plaub ntawm LED qee qhov ntawm qhov sib txuas nrog cov hluav taws xob ntawm N- Cheeb Tsam thiab qee qhov hluav taws xob los ntawm N ua ke nrog lub qhov los ntawm P- cheeb tsam. Txhua qhov rov ua dua tshiab ua rau pom lub teeb lossis Photons.

LEDs muaj qhov sib txawv thiab yog li tsis ua haujlwm yog tias lawv txuas nrog hauv Kev rov qab tsis ncaj ncees. Txoj hauv kev yooj yim tshaj plaws los tshuaj xyuas qhov sib txawv ntawm cov LED ib txwm yog los tuav lub LED ze ntawm koj lub qhov muag. Koj yuav pom tias muaj ob lub electrodes. Qhov tuab yog Cathode (-). Lub teeb tawm los ntawm Cathode. Cov hluav taws xob me dua yog Anode (+). [Txawm hais tias txoj hauv kev ntawm kev txheeb xyuas polarity no yuav tsis ua haujlwm rau qee qhov LED zoo li kev ua haujlwm siab LEDs, thiab lwm yam uas qhov txawv yog qhov tseeb]. Feem ntau LED's tau tsim tawm kom qhov ntev ntawm kev coj ntawm Cathode thiab Anode sib txawv. Vim qhov LED no tau tsim nrog Anode (+) ua tau ntev dua li Cathode (-) txhuas. Qhov no kuj ua kom yooj yim dua los txiav txim qhov sib txawv. Inorder to TEST polarity koj yuav tsum tau siv Multimeter.

Kauj Ruam 2: Tam Sim No & Kev Ntsuas Lub Hwj Chim, Haitz Txoj Cai

IMAGE: LED Cim

Feem ntau IR LEDs tuaj yeem ua haujlwm rau ~ 1.5V tab sis ntau Liab LED xav tau ~ 1.8V, Common Green LED xav tau ~ 2V & ntau xiav & dawb LED's (uas tau kawg yog xiav nrog txheej phosphor) xav tau 3V zoo.

LEDs tsis muaj "ntsuas qhov ntsuas hluav taws xob"; lawv yog cov tsav tam sim no. Qhov ci ntsa iab yog qhov sib piv rau qhov tam sim no, thiab tsis ncaj qha sib piv rau qhov hluav taws xob. Ntawm ib qho tshwj xeeb tam sim no, lawv yuav muaj qhov hluav taws xob rau pem hauv ntej, tab sis qhov ntawd yog theem ob rau qhov tam sim no, uas yog lub hauv paus tseem ceeb uas yuav tsum tau tswj hwm.

Kev Ntsuas Tam Sim No

Kev ntsuas tam sim no ntawm LED's zoo ib yam li Kev Ntsuas Voltage. LED feem ntau muaj tus qauv ntsuas tam sim no. Feem ntau cov LED xav tau txog 5-25 mA. Qhov xav tau tam sim no los ntawm LED qee zaum nyob ntawm Cov Xim ntawm LED. Yog tias koj muab ntau tshaj tam sim no LED yuav hlawv thiab puas tsuaj. Ntawm qhov tod tes yog tias koj muab cov khoom siv qis heev tam sim no LED yuav tsis tsim nws cov zis ntau tshaj. Niaj hnub nimno ultrabright liab/ntsuab LEDs tuaj yeem muab cov khoom siv tau (rau xwm txheej siv thiab lwm yam) tsawg li 1mA

Kev Ntsuas Fais Fab

Ib qho LED tuaj yeem muaj ntau lub zog ntsuas nyob ntawm lawv Hom, Tsim thiab Kev Ntsuas Tam Sim No, thiab lwm yam. LEDs tsis muaj txiaj ntsig zoo dua li cov teeb pom kev zoo xws li CFL's thiab Incandescent Bulbs.

Hais txog txoj cai

Nws hais tias txhua xyoo dhau los, tus nqi ib lumen (chav ntawm lub teeb pom kev zoo tso tawm) poob los ntawm qhov 10, thiab tus nqi ntawm lub teeb tsim rau ib pob LED nce ntxiv los ntawm 20, rau qhov muab lub nthwv dej (xim) ntawm lub teeb. Nws tau txiav txim siab LED tus qauv rau Moore txoj cai lij choj, uas hais tias tus naj npawb ntawm cov transistors hauv ib qho kev sib koom ua ke muab ob npaug txhua 18 txog 24 lub hlis. Ob txoj cai lij choj tso siab rau txheej txheem kev ua kom zoo ntawm kev tsim cov khoom siv hluav taws xob.

Kauj ruam 3: Tsim

DUAB:

1. Yooj yim LED.
2. Dome LED teeb.
3. SMD LED (Loj).
4. SMD LED (Me me).
5. Zaub LED siv hauv 7-Segment Zaub.

LEDs tau tsim muaj ntau yam duab thiab ntau thiab tsawg. Cov xim ntawm cov yas yas feem ntau zoo ib yam li cov xim ntawm lub teeb tawm, tab sis tsis tas li. Piv txwv li, yas yas feem ntau siv rau infrared LEDs, thiab cov khoom siv xiav feem ntau muaj cov tsev tsis muaj xim. Niaj hnub nimno lub zog loj LEDs xws li cov uas siv rau teeb pom kev zoo thiab teeb pom kev zoo feem ntau pom muaj nyob hauv cov khoom ntim saum npoo (SMD). Qee qhov LED muaj cov iav yas diffused.

Yooj yim LED

Qhov yooj yim LED yog ib qho ntawm kev siv dav dav LED. Vim nws dhau lawm nws lub npe yog qhov pheej yig dua piv rau lwm tus LED. Nws zoo li yooj yim heev thiab tsim yog yooj yim heev.

Dome LED teeb

Nov yog hom LED uas zoo li nyiam 'Dome'. Cov duab no tau tsim los ua kom thaj tsam uas lub teeb kis mus tau zoo heev. Hauv lwm lo lus Lub Kaum Ntawm Kev Tso Tawm (Kev Hloov) ntawm Lub Teeb los ntawm LED yog ntau dua li Cov Qauv LED. Qhov no feem ntau yog tswj los ntawm qhov deb lawv tso lub teeb emitter los ntawm lub dome. Cov ntawv tshwj xeeb yuav luag ib txwm muab rau koj "ib nrab lub zog" (lub kaum sab xis tawm ntawm qhov uas koj pom tsuas yog ib nrab qhov ci ci). Yog tias koj xav tau ntau lub kaum sab xis tso tawm koj tuaj yeem txiav lub dome tawm nrog lub cuab yeej dremel. Yog tias koj saib xyuas, koj tuaj yeem ua ntawv lossis txhuam qhov kawg, tab sis nws tsis tsim nyog. Qhov ze koj txiav nws mus rau cov cuab yeej tso tawm, lub dav dav koj yuav tau txais. Tab sis ceev faj tsis txhob txiav ze heev vim tias muaj cov xaim me me nyob rau ntawd uas feem ntau tsis tuaj yeem pom ntawm qhov muag. Txawm hais tias hom LED no yog me ntsis kim dua li qhov pib coj.

SMD LED teeb

Hom LED no feem ntau me me me. SMD txhais tau hais tias Surface Mounted Device. Thiab raws li nws lub npe qhia, qhov LED no tau muab tso rau saum npoo ntawm PCB tsis zoo li cov khoom siv 'dhau-qhov'. Cov LEDs no feem ntau yog siv los ntawm Cov Tshuab (Cov Cuab Yeej Siv Tau Zoo) thiab nyuaj heev rau cov laug los ntawm txhais tes (Txawm hais tias nws tsis yooj yim sua rau Solder SMD LED los ntawm Tes). Inorder to solder SMD LED los ntawm txhais tes koj tsuas yog xav tau lub ntsej muag tipped zoo hlau, qee qhov ci ci, lub teeb ci, thiab tej zaum yog lub tshuab ua kom pom tseeb thiab qee qhov txuj ci zoo thiab raug.

Zaub LED

Hom LED no feem ntau yog siv hauv cov lus raws li nws cov duab yog tiaj.

Kauj ruam 4: Hom

DUAB:

1. Dome LED cov.
2. IR LED cov.
3. 7 Segment Display LED
4. Tri xim LED (hloov xim LED).

Xim LED

Coloured & White LED's feem ntau yog siv hauv Qhov Ntsuas, Teeb, Khoom Siv Teeb Pom Kev, thiab lwm yam. Lawv yog ib qho uas feem ntau siv LED

Xim Hloov LED (Tri/Bi Xim LED)

Hauv hom LED no, cov xim tso tawm los ntawm LED hloov pauv nyob rau lub sijhawm tshwj xeeb. Ib qho me me sib xyaw ua ke Circuit (IC) tau kos rau hauv qhov LED inorder los tswj lub sijhawm ncua ntawm kev hloov xim sib txawv. Tri/bicolor LEDs tsis hloov xim lawv yeej yog ob qho sib txawv LEDs (feem ntau yog liab thiab ntsuab) hauv ib pob. Koj tig ib lossis lwm yam los tsim ob xim thiab ob qho los ua thib peb.

Infrared (IR) LED

Hom LED no yog kab teeb infrared rays ntawm lub teeb. Cov duab hluav taws xob infrared no tsis tuaj yeem pom los ntawm Tib Neeg Qhov Muag. Hom LED no feem ntau ua haujlwm ntawm kev sib kis ntawm 38KHz. LEDs tseem tau hloov pauv ntawm qhov qis heev kom yooj yim pom qhov ntsais ntsais LED, thiab feem ntau hloov kho ntawm qhov muaj qhov sib txawv ntau nrog kev ua haujlwm sib txawv los tswj hwm lawv qhov ci ci. Thiab tom qab ntawd qee qhov tau hloov pauv ntau zaus kom xa cov ntaub ntawv (raws li siv hauv fiber ntau optics piv txwv). Nws feem ntau yog siv hauv Kev Tswj Chaw Taws Teeb thiab Cov Khoom Sib Txuas Me Me. Koj tuaj yeem sim IR LED los ntawm kev saib nws hauv qab Lub Koob Yees Duab thaum lub sijhawm tam sim no tau siv thoob plaws LED. Hauv lwm lo lus lub koob yees duab tuaj yeem tshawb pom IR duab hluav taws xob tawm los ntawm LED. Cov koob yees duab uas tsis muaj IR thaiv lim feem ntau tuaj yeem pom ze IR zoo heev (thiab zoo li yuav lub koob yees duab pheej yig thiab tshwj xeeb yog lub koob yees duab ruaj ntseg). Tab sis nws yuav tsum tau hais tias txawm tias qee lub koob yees duab ntawm lub xov tooj ntawm tes tsis pom IR LED zoo heev txhua qhov vim lawv cov IR thaiv lim.

7 Segment Display LED

Ib qho 7 ntu zaub LED yog ib qho LED suav nrog 7 zaub LED txuas nrog hauv daim ntawv ntawm 8. Nws tau siv hauv lub laij lej, qhia tawm, thiab lwm yam. Ib qho LED zoo ib yam rau qhov no kuj tseem siv los ua cov tsiaj ntawv.

UV LED

UV LED tso tawm Ultra Violet rays ntawm lub teeb. Cov duab hluav taws xob no muaj ntau daim ntawv thov xws li Kev Ua Kom Tsis Muaj Menyuam, Kev ua kom dej huv, thiab lwm yam.

Kauj Ruam 5: Lub Tshuab Ntsuas Hluav Taws Xob rau LED's

DUAB:

1. Ntau yam resistors thiab LED.
2. LED Kuj Kuj Tshuab Xeem App Logo.

Yog li cov lus nug feem ntau nug txog LED's yog qhov tsim nyog tiv thaiv siv nrog Yog vim li cas tus tiv thaiv siv nrog LED's yog los tiv thaiv lawv los ntawm qhov tam sim no uas tuaj yeem hlawv thiab ua kom puas LED. Tab sis xaiv txoj cai LED tsis yooj yim li. Vim li cas? Zoo yog tias koj xaiv qhov kev tiv thaiv siab heev, LED yuav tsis tso nws lub teeb ci ntau tshaj. Thiab yog tias koj qhov kev tiv thaiv qis muaj feem yuav ua rau LED puas tsuaj.

Yog li cov mis yooj yim tau tsim:

Kuj = (Tau qhov twg los Voltage - LED Voltage) / (LED Tam sim no / 1000)

*Nco ntsoov, LED Tam sim no nyob hauv milliamps (mA)

Inorder kom ua qhov kev suav yooj yim dua no koj tuaj yeem siv dawb Android App LED Kev Kuj Kuj Kuj Lej. Nws yog ib qho app tsim tshwj xeeb rau Cov Lus Qhia no. Lwm cov yam ntxwv thiab ntau yam khoom siv hluav taws xob cuam tshuam nrog kev ua haujlwm thiab lub laij lej yuav raug ntxiv rau hauv app no. Lub app tau tsim los ntawm BluBot Technologies. Koj tuaj yeem tshawb xyuas nws Cov Lus Qhia thiab tiv toj nws los ntawm nws Orangeboard @Nathan Neal Dmello. Nws tseem ua haujlwm ntau lwm txoj haujlwm hauv kev tsim Apps, Cov vev xaib, Khoos phis tawj programs, thiab lwm yam Koj tuaj yeem tiv toj nws ntawm nws lub vev xaib.

Kauj ruam 6: Siv

DUAB:

1. TV Tej thaj chaw deb tsis muaj khawm nias.
2. TV chaw taws teeb nrog khawm nias thiab IR LED nyem pom.
3. Sawb ntawm Dome LED's los ntawm Lub Teeb Pom Kev Kub Ntxhov.
4. LED Flash ntawm Lub Koob Yees Duab Smartphone.
5. LED ntsuas lub zog ntawm lub Laptop.

LEDs tau siv txhua qhov txhia chaw. Los ntawm koj lub xov tooj nyem, rau koj lub tsheb suab paj nruag, rau koj lub teeb pom kev hauv vaj, rau koj lub TV tso saib. Yeej lawv qhov kev hloov pauv thiab kev ua tau zoo tau muab rau lawv hauv qhov feem ntau ntawm cov khoom siv hluav taws xob.

Qee qhov kev paub siv tshaj plaws yog:

1. Teeb pom kev zoo.
2. Qhia.
3. Qhov ntsuas.
4. Hniav Teeb thiab Cov Khoom.
5. Kev Tswj Chaw Taws Teeb.
6. Tsis muaj menyuam.
7. Kev lim dej.
8. Kev kho hniav & lwm yam ntawv kho mob.

Kauj Ruam 7: Xeem & Circuit

DUAB:

1. Multimeter siv los ntsuas LED.
2. Ib qho yooj yim Circuit Court siv LED.

Kev Xeem

Kev ntsuas nrawm nrawm rau xim, ci ntsa iab & polarity tsuas yog 3V lithium npib ntawm tes (piv txwv li CR2032). Tsuas yog kov cov hluav taws xob qis LEDs rau qhov luv luv ntawm chav kawm, lossis lawv tuaj yeem ua kom sov!

Qee qhov LED tuaj yeem raug tshuaj xyuas ua ntej txhawm rau txheeb xyuas seb nws puas ua haujlwm tau zoo siv lub multimeter & ua raws cov theem hauv qab no:

1. Teem lub xov tooj ntawm lub ntsuas cua mus rau 'Continiuity' ua haujlwm.
2. Tam sim no txuas Anode (+) ntawm LED mus rau RED/Positive/(+) sojntsuam ntawm lub multimeter & txuas Cathode (-) ntawm LED mus rau BLACK/Negative/(-) sojntsuam ntawm lub ntsuas.
3. Yog tias LED ua haujlwm Multimeter yuav pib ua lub suab nrov. Thiab tus nqi yuav tso tawm ntawm lub vijtsam multimeter. Ntxiv rau qhov no, LED yuav tsum ci.

*Kuaj ib qho LED siv qhov ua haujlwm txuas ntxiv ntawm lub multimeter feem ntau yuav tsis ua haujlwm vim tias feem ntau cov ntsuas ntsuas tsuas yog siv qhov hluav taws xob qis, tsawg dua 1V, rau kev ntsuas tsis kam thiab txuas ntxiv mus. Yog tias nws ua, lub multimeter yuav tsis ua suab nrov tsis tu ncua; nws yuav ua rau luv luv beep. Ntau lub ntsuas hluav taws xob muaj qhov ntsuas kev ua haujlwm diode, qhia los ntawm lub cim diode, uas siv txog 2V hla lub diode. Qhov no yuav ntseeg tau qhia koj qhov sib txawv ntawm ntau lub LEDs tab sis tsis tas yuav yog xiav thiab dawb LEDs nrog rau qhov siab rau pem hauv ntej.

Koj kuj tseem tuaj yeem Ntsuas LED thiab lwm yam khoom siv nrog kev pab ntawm qhov Circuit no:- Electronic Sensor Component Tester

Circuit Court

Nov yog ib qho ntawm qhov yooj yim tshaj plaws thiab muaj ntau yam Circuit Court koj tuaj yeem pom uas siv LED hauv nws. Yog vim li cas nws thiaj yog lub voj voog zoo pib nrog vim tias nws tseem tuaj yeem tshawb xyuas qhov ua haujlwm ntawm lwm yam khoom siv hluav taws xob lossis Cov Hluav Taws Xob Hluav Taws Xob. Koj tseem tuaj yeem tshawb xyuas cov lus qhia ntxaws uas yuav pab koj ua qhov Circuit no: Electronic Sensor Component Tester

Runner Up hauv Kev Sib Tw Tech

Qhov khoom plig thib ob hauv Qhia Nws! Kev sib tw txhawb nqa los ntawm Dremel