Sidee bandhigay toddoba-qeybta?

LED (ama iftiin diode emitting) waa diode ah indhaha in shanqarta tamarta iftiinka ee foomka of a "photon" marka hore u waa u janjeedhaan. In korontada aan tixraac habkan of electroluminescence. Midabka iftiinka muuqda timaada by LED waa in kala duwan oo ka buluug ah si ay cas oo waxaa lagu go'aamiyaa ku spectral Milanello iftiinka timaada, taas oo iyana ku xiran tahay nijaasta kala duwan in ay yihiin ku daray in ay wax Semiconductor inta lagu guda jiro soo saaridda.

Kokes ku leeyihiin faa'iidooyin badan marka la barbar dhigo nalalka dhaqanka iyo laambadihii, iyo, laga yaabee ugu muhiimsan ee iyaga ka mid ah waa ay size yar yar, cimri dherer, noocyo kala duwan oo midabo, kharash yar oo la heli karo si sahlan, awood u leh inay si fudud ula falgalaan qaybaha kala duwan ee kale ee elektaroonigga ah ee wareeggeedii digital.

Laakiin faa'iido ugu weyn ee uu Kokes ku waa in ay sabab u tahay in ay size yar yar, qaar ka mid ah la isugu laga yaabaa in guryaha hal is haysta, sameynta wax-u bandhigay toddoba-qeybta ah.

bandhigay toddoba-qeybta ka kooban tahay toddoba Kokes (halkan ka ay magac), laydi Ahaado, sida ku cad shaxanka. Mid kasta oo ka LED toddoba qeybta waxaa loo yaqaan, tan iyo Nuur ee qeybta foomamka tirada qayb (12 tobanle ama hexadecimal nidaamka tirada). Mararka qaarkood gudahood xirmo isku isticmaalo 8aad LED dheeraad ah. Waxay u adeegta si ay u soo bandhigaan dhibic jajab tobanle (DP) ah, sidaas jidaynayey si ay u soo bandhigaan jajab tobanle, haddii laba ama in ka badan oo ka mid ah qaab 7-qeybta wada xiran si ay u matalaan lambarada ka badan toban.

Mid kasta oo ka mid ah toddobada qeybta LED bandhigay xiran xiriir ah la xiriir suufka kala toos u amro on guryaha tilmaame caag ah qaab. xiriirada LED tags ku tilmaamay ka ah in g, oo wakiil ka ah qeybta kasta oo gaar ah. xiriirada kale ee qaybaha LED wada xiran oo ay u sameeyaan wax soo saarka caadi ah.

Sayidka, eexda hore waxaa bixisey in xiriirada ku haboon LED qaybaha si gaar ah, ka dhigi doonaa qaar ka mid ah qeybaha ku iftiimin ilaa, iyo inta kale ee weli ku suuxay doonaa, kuu oggolaadaan in aad si loo muujiyo dabeecadda doonayo ee template ah, taas oo la soo bandhigi doonaa on bandhigay. Tani waxay noo oggolaaneysaa in ay matalaan kasta oo ka mid ah lambar toban tobanle 0 illaa 9, bandhigay 7-qeybta ah.

Gunaanadka guud waxa caadi ahaan loo isticmaalaa si loo ogaado nooca bandhigay 7-gabal. screen kasta LED leedahay laba Xidhiidhiyayaasha saarka, mid ka mid ah oo la yiraahdo "anode" oo kale, siday u kala horreeyaan, waxaa loo yaqaan "cathode" ah. Sidaa darteed, tilmaame toddoba-qeybta LED waxay leeyihiin waxaa laga yaabaa in laba nooc oo qaab wareeg - a cathode caadi ah (QA) iyo anode caadi ah (o).

Farqiga u dhexeeya, kuwaas oo laba nooc oo qaab waa in design ka mid ah cathodes OC oo dhan 7 qaybaha yihiin si toos ah ugu xiran la mid kale, iyo in circuit la caadi ah (o) ku xiran yahay inta u dhaxaysa anode ee anodes 7 qaybaha. Labada wareeggeedii shaqeeyaan sida soo socota.

• cathode caadiga ah (QA) - cathodes isku xidhan oo dhan qaybaha LED leeyahay heer macquulka ah "0" ama ku xiran GND. The qaybaha shaqsi waxaa lagu soo bandhigaa signal ay saarka sahayda anode heerka macquulka ah "sare" ama macquulka ah "1" iyada oo loo marayo resistor a yareysey si ay u abuuraan eexda hore ee uu Kokes ku shaqsi.
• anode Common (o) - anodes dhammaan qeybaha LED lagu daro iyo heerka macquulka ah "1". qaybaha Individual iftiinka tilmaame marka xarunta kasta oo gaar ah cathode ee dhulka, macquul ah "0" ama signal-fasalka yar yahay iyada oo u dhiganta resistor a yareysey hadda.

Guud ahaan, Kokes toddoba-qeybta la anode caadiga ah waxay u badan oo caan ah, sababtoo ah wareeggeedii badan oo macquulka ah waxay u baahan yihiin waxaa laga yaabaa in ka badan oo hadda ka badan waa awoodaa inuu ku siiyo il awoodeed. Sidoo kale ogsoonow in cathode bandhigay caadi ma aha circuit bedelka tooska ah ee qaab la anode caadi ah. Oo qeybsanaan ku xigeenka - taasi waa u dhiganta mid noqoshada ee uu Kokes ku jihada dambe, iyo sidaas, warshadu hawada iftiin ma dhici karto.

Inkasta oo waa la daaweyn karaa hal qaab, waa bandhigay 7-qeybta ah weli ka kooban yahay toddoba Kokes shaqsi ee xirmo hal, iyo sida oo kale, Kokes wuxuu u baahan in laga ilaaliyaa overcurrent. Kokes dhaadheer light oo kaliya marka ay ku barakaceen dhinaca weerarka, iyo qaddarka iftiinka timaada waa saamiyeed si ay hadda si toos ah. Waxaa loola jeedaa oo kaliya in xoogga nuurka LED kordhiyaa qiyaastii linearly la sii kordhaya ee hadda. Sidaas daraaddeed, si looga fogaado waxyeelo ay ku LED ah, this hadda si toos ah waa in ay gacanta ku iyo kooban qiimaha ammaan ah ee resistor yareysey dibadda.

Toddobadan bandhigay qeybta waxaa loo yaqaan ma guurto ah. khasaaro A weyn waa in tirada badan oo biinanka ee xirmadan. In ay ka gudbaan xaddidaadda waxay khuseysaa nidaamka gacanta firfircoon toddoba bandhigay qeybta.

tilmaame Todoba-qeybta helay taageero weyn ka mid ah amateurs radio, maxaa yeelay, waa habboon in la isticmaalo oo ay fududahay in la fahmo.