Symbol LED wesifunda

Ezithakazelisayo ukuze sibone indlela emangalisayo isivinini enye ubuchwepheshe. wayeneminyaka engamashumi amathathu edlule, saseneliseka ngokuphelele electronics, esetshenziswa, nje imoto, endaweni ethile esingesihle, futhi ongaphakeme-speed, izindlu nesizotha ngaphandle ukulungiswa. Kodwa indoda elimiswe ukuze njalo ukulwela into neliphelele kunalelo, futhi manje cishe zonke izici zokuphila kukhonjelwe sesimanje njalo. Ezithintiwe, le nqubo futhi babonise kanye ukukhanyisa izinhlelo. Ngakho, sifika amadivayisi Semiconductor ezithuthukile kunalezi esikhundleni izibani incandescent - LED.

likhipha crystal

Umlando ukusetshenziswa Semiconductors uqale amadala usebenzisa izibani E-hlobo. NJENGOBA Popov, obhekwa umsunguli we umsakazo, ukusesha esebenzisa Semiconductor inkimbinkimbi, khona namagagasi omsakazo. Popov diode lokuqala (umtshina) sesakhiwe kusukela chip Semiconductor ilungiswe umnikazi, futhi oxhumana entwasahlobo ka a tungsten ezicijile noma steel. Lona othintana naye wancika endaweni Semiconductor, futhi kuncike iphuzu contact ukuze kutholakale kucace kakhulu isignali transceiver.

Ikhono amakristalu ezithile ihlaba umkhosi ukukhanya by wamanje kwatholakala kamuva, ngengozi, kodwa okokuqala esihlatshiwe lingasetshenziswanga e umkhuba. Kodwa manje, LED kabanzi imishini ekhethekile, futhi ekuphileni kwansuku zonke.

Kuyini LED, indlela okubukeka kushadi?

ezihlukahlukene LED ngokuthi Semiconductor isici kokuba Singularity we crystal ukuze ihlaba umkhosi ukukhanya ngaphansi kwethonya i kagesi lamanje Ukudlula therethrough. Lo mphumela nhlobo Semiconductors, kodwa yilabo kuphela lapho e inqubo recombination ka-electron futhi izimbobo ukukhululwa kwe amandla kwenzeka ku uhla optical. LED njengoba diode ezivamile, i-PN-rockstar futhi sihamba samanje isiqondiso eyodwa kuphela.

Isici esivelele sesimiso LED njengoba idivayisi ukukhanya likhipha wukuthi ikhishwe Quanta ngqo ukukhanya. Lokhu iyahlule izibani incandescent, okuyinto eyenzeka kuqala Ukushisa Kuvunguza lokushisa ethile, noma izibani Halogen ngomthelela ionization. Amandla ukulahleka diodes ukukhanya-likhipha uthole.

Ikhipha e substrate LED kuthiwa camera nge ezikhumulweni crystal uxhumano i wesifunda kagesi kanye izindlu, okuyinto kanyekanye uhlelo optical. ukuqokwa LED e isikimu has inkulumo ethile ingcaca, ebhodini electronic ukuthi ezikhonjiswe a wekhodi ekhethekile.

Yini LED, nokuthi lokhu kubonakala ukuveza kwayo kushadi?

LED likhipha ukukhanya, lokhu injongo yawo. Futhi kule kwendikimba abonisa ngokucacile by imicibisholo amabili ivela isici. Ukusetshenziswa idivayisi lithole ubanzi kakhulu:

• isibonisi ezahlukene. Okuwuphawu ukufakwa izindlela ezihlukahlukene zobuchwepheshe usebenzisa izakhi ehlukile. iqembu amadivayisi lisetshenziswe ukubonisa digital, lapho esinye nesinye LED udlala indima izinombolo noma izinhlamvu. Symbol LED wesifunda kufakwe iqembu, akuyikuba ngokuhlukile ngamunye, futhi lonke iqembu uboniswa ngesimo inkomba nge legatsha futhi izinombolo othintana.
• Ukuze ukukhanyisa yokuhlala, umphakathi kanye yezimboni.
• Njengengxenye izikrini lokusakaza ongaphandle, kanye ukudala Ukuphenya umbhalo.
• I optocouplers. LED ukuqokwa umdwebo kuleli cala kulekelelwa element isithombe photodetector.
• izinhlelo ze-fiber optic. Lapha, i-LED ukwenza njenge radiators we modulated wave optical.
• Ukuze kukhanyisa okucaciswe luketshezi esibukweni.
• Design kanye nemboni yezikaqedisizungu.

Izici wemidwebo ubheke Semiconductor

amazinga Technical neziqondiso elawula ukuqokwa kwe-LED kwi wesifunda. GOST 2.702-2011 sinquma:

• Ziveza LED nezinye izakhi wesifunda esebenzisa umdwebo izimpahla, noma ku-elekthronikhi. Kulokhu, inketho lokugcina ukuba isinqumo okungenani 300dpi futhi ifaka TIF isandiso noma ifayela bmp.
• I-LED kuyinto ukusebenza kwendikimba njengoba diode ezivamile ebiyelwe umbuthano. Ngenhla engxenyeni engenhla kwesokudla selilonke ahlelwe imicibisholo ezimbili ezihambisanayo, esukela ilungu base engela kuya phezulu kwesokudla.
• LED Eduze abonisa ikhodi yakhe nezinombolo egcwele.
• Kungakhathaliseki ukuthi i-LED wesifunda, polarity kwelinye direction noma kwenye noma engela, isiqondiso umcibisholo uhlala ingashintshiwe.
• Okuphuma ivela onxantathu kulombhalo limelela anode (+) kanye umugqa mpo - a cathode (-).
• I-LED kwi wesifunda kufanele abe inombolo yayo ye-serial. I izinombolo uya kusuka kwesokunxele kuya kwesokudla, phezulu kuya phansi.

LED - polarity isiqu

isiqu se-LED ishadi kwenza kube lula ukuba sithole polarity, kodwa ukunquma ke kusukela nto owawusanda kuthengwa, udinga ukubheka contact wakhe. Positive anode esibulalayo ngokuvamile has a obuphelele njengengcebo enkulu kunemicebo cathode.

Uma LED ogibele ibhodi, futhi yena, ngoba noma ngabe yisiphi isizathu, ayinakho izakhi wokugubha, le polarity we Semiconductor kungaba azimisele, sihlolisise umzimba wakhe. Kusukela ohlangothini cathode (esibulalayo-negative) emzimbeni abe flat ukuma notch. Futhi, okusobala ebiyelwe uhlobo LED ukubonwa elingaphakathi yayo. Ukufana lendebe, lapho chip Semiconductor itholakala, has a uxhumano ngqo cathode.

Esimeni lapho akwenzeki ukunquma polarity Kulezi zindlela ezingenhla, kodwa kukhona khona i multimeter electronic, ungakwazi ukuyisebenzisa. Thatha diode ejwayelekile polarity aziwayo ukunikeza embili kudivayisi ukusebenza bese uxhuma Semiconductor. Ukulondolozwa polarity lapho diode uqhuba zamanje. LED exhunywe kwi-schupam wokulinganisa. Qinisekisa ukuthi uqhuba zamanje, uqaphele polarity.

I-LED ibhodi

Lapho ephrintiwe wesifunda ibhodi inhlangano radiomontazhniki uhlelo siqu futhi incazelo ka uhlu izakhi. Ngokusho lolu hlu mshini osetshenziswayo esikhombisa uhlobo lento izinombolo kanye izikhundla ku circuit. Kukhona international namazinga izimpawu ebhodini, ngokuvamile esetshenziselwa ukwenza imishini amazwe.

Ukuqokwa kwebhodi LED kuyinto ngesimo izithombe ingcaca, lokufaka ikhodi okungokoqobo izinombolo. I ekhombisa wokuqala kule Semiconductors main polar, izinhlamvu zibonisa uhlobo idivayisi kanye nenombolo - inombolo ye-serial kohlelo kanye ohlwini.

A notation sokuqhafaza circuit amabhodi LED nsé nomfanekiso waso esisencwadini umdwebo, kodwa zingase zingabi selilonke emhlabeni isithonjana diode. I ongokoqobo wekhodi wenziwa ofeleba - LED (scheme amazwe) kanye HL (ezifuywayo). I inomboro eza ngemuva izinhlamvu noma ezansi. Ngaphandle kwenombolo akunakwenzeka ukuthola kwemigomo Semiconductor ukuthi ibhodi akubonisi ukukhipha ezingavamile.

wokugubha LED

lettering LED scheme (wokugubha) unakho konke ukwaziswa mayelana nezici kudivayisi ethile Semiconductor. Ukumaka iqukethe impela eningi izinhlamvu, ngakho-ke ungacimi izindlu futhi abaholayo wesifunda noma kwi isembozo akuyona soldered izakhi. LED ku amateyipu kukhona amatheku ku ohlobo, okuyinto athwale izimpawu wokugubha. Uku ibonisa:

• Uchungechunge imikhiqizo.
• Umbala ukukhanya LED. diodes Modern ukukhanya-likhipha asemhlophe, oluhlaza, obomvu, oluhlaza, orange, ophuzi.
• Ikhwalithi umbala ukugeleza. Ngokwesibonelo, ukukhanyisa LED endlini noma emgwaqeni, amadivayisi ukubonisa, ukukhanyisa, ngoba matrices isithombe.
• uhlobo lens. Kukhona ukukhanya-kusakazeka amathuluzi kanye emisebeni ebhekiwe nge lens oluyingungu, obala futhi opaque.
• okukhipha ukukhanya.
• Ukusetshenziswa kwamandla kagesi.
• Ikhodi aziwe umenzi. It has no umthwalo esisebenzayo.
• inqolobane izimpawu. Abakhiqizi uzishiyele ukuguqulwa kungenzeka izakhi.

Akukho ejwayelekile oluthize kophawu of LED, ngakho nomkhiqizi ngamunye wekhodi lalo. Khumbula akunakwenzeka, kodwa abakhiqizi ezinkulu kwalo mkhiqizo emakethe akuyona kakhulu. Phakathi kwabo kukhona izinkampani ezifana Philips, Cree Samsung.

isiphetho

Ngaphezu LED ezivamile pin, lapho SMD-LED nge pads. Amancane ngosayizi. Incwadi ekubizweni LED kwalowo uthayiphe Isikimu ezifanayo ne LED-izakhi, kodwa ibhodi lula futhi ngokuvamile kungagcini ebonisa polarity.