Kala soocidda iyo sifooyinka awoodda wadista LED

 Korontada wadista LED-ku waa beddele koronto oo u beddela tamarta koronto gaar ah iyo hadda si ay u kaxeyso LED-ka si ay u shideyso iftiinka.Duruufaha caadiga ah marka la eego: gelinta awoodda wadista LED-ka waxaa ka mid ah soo noqnoqoshada awoodda korantada-sare ee AC (ie awoodda magaalada), korantada hoose ee DC, korantada sare DC, korantada hoose iyo sare-voltage.Inta jeer ee AC (sida wax soo saarka beddelka elektarooniga ah), iwm.

-Marka loo eego habka wadista:

(1) Nooca hadda socda

a.Hadda wax soo saarka ee wareegga wadista joogtada ah ee joogtada ah waa mid joogto ah, laakiin wax soo saarka DC wuxuu ku kala duwan yahay xad gaar ah oo leh xajmiga caabbinta culeyska.Inta yar ee iska caabbinta culeyska, ayaa hoos u dhigaya tamarta wax soo saarka.Weynaanta caabbinta culeyska, wax-soo-saarka ayaa kor u kaca tamarta;

b.Wareegga joogtada ah ee joogtada ah kama cabsanayo culeyska wareegga gaaban, laakiin si adag ayaa loo mamnuucay in si buuxda loo furo.

c.Waxay ku habboon tahay wareegga wadista joogtada ah ee hadda jira si loo kaxeeyo LED-yada, laakiin qiimaha waa mid aad u sarreeya.

d.U fiirso heerka ugu sarreeya ee u adkeysiga hadda iyo qiimaha tamarta la isticmaalo, kaas oo xaddidaya tirada LED-yada la isticmaalo;

 

(2) Nooca nidaamsan:

a.Marka la go'aamiyo cabbirrada kala duwan ee wareegga xakamaynta korantada, korantada wax-soo-saarka ayaa go'an, laakiin hadda wax soo saarka ayaa isbeddelaya kororka ama hoos u dhaca culeyska;

b.Xakamaynta korantada kama cabsanayso furitaanka rarka, laakiin si adag ayaa loo mamnuucay in la gaabin culeyska gebi ahaanba.

c.LED-ku wuxuu ku socdaa wareegga korantada-dejinta, iyo xadhig kasta wuxuu u baahan yahay in lagu daro iska caabin ku habboon si loo sameeyo xadhig kasta oo LEDs ah oo muujinaya dhalaal dhexdhexaad ah;

d.Iftiinka waxaa saameyn doona isbeddelka korantada ee hagaajinta.

-Qoritaanka awoodda wadista LED:

(3) Wadista garaaca wadnaha

Codsiyo badan oo LED ah waxay u baahan yihiin hawlo dhimis, sidaIftiinka dambe ee LEDama nalka nalka dhismaha.Shaqada dhimista waxaa lagu xaqiijin karaa iyadoo la hagaajinayo dhalaalka iyo isbarbardhigga LED-ka.Si fudud u dhimista hadda ee qalabka ayaa laga yaabaa inay awood u yeelato inay hagaajisoiftiinka LEDsii daynta, laakiin u oggolaanshaha LED-ku inuu ku shaqeeyo xaalad ka hooseeya kan hadda la qiimeeyay waxay sababi doontaa cawaaqib xumo badan oo aan loo baahnayn, sida aberration chromatic.Beddelka hagaajinta fudud ee hadda jirta ayaa ah in lagu daro kontaroolaha ballaca ballaca garaaca wadnaha (PWM) ee darawalka LED-ka.Calaamadda PWM si toos ah looma isticmaalo in lagu xakameeyo LED-ka, laakiin si loo xakameeyo beddelka, sida MOSFET, si loo siiyo wakhtiga loo baahan yahay LED-ka.Xakameeyaha PWM wuxuu badanaa ku shaqeeyaa soo noqnoqoshada go'an wuxuuna hagaajiyaa ballaca garaaca wadnaha si uu u dhigmo wareegga shaqada ee loo baahan yahay.Inta badan chips-yada LED-ka ee hadda jira waxay isticmaalaan PWM si ay u xakameeyaan qiiqa iftiinka LED-ka.Si loo hubiyo in dadku aanay dareemin liiq-liiqasho cad, inta jeer ee garaaca garaaca wadnaha PWM waa inuu ka weynaadaa 100HZ.Faa'iidada ugu weyn ee kontoroolka PWM waa in isbeddelka hadda socda ee PWM uu yahay mid sax ah, taas oo yaraynaysa farqiga midabka marka LED-ku iftiimiyo iftiinka.

(4) AC wadista

Sida laga soo xigtay codsiyada kala duwan, AC drives sidoo kale waxaa loo qaybin karaa saddex nooc: buck, boost, iyo converter.Farqiga u dhexeeya darawalka AC iyo darawalka DC, marka lagu daro baahida loo qabo in la saxo oo la shaandheeyo AC-ga gelinta, waxaa sidoo kale jirta dhibaato gooni-gooni ah iyo ka-go'doon la'aan xagga amniga.

Dareewalka AC-ga waxaa inta badan loo isticmaalaa nalalka dib-u-habaynta: tobanka PAR (Parabolic Aluminum Reflector, laambada caadiga ah ee marxaladda xirfadda) nalalka, nalalka caadiga ah, iwm, waxay ku shaqeeyaan 100V, 120V ama 230V AC Ilayska MR16, waxay u baahan tahay in uu ka hoos shaqeeyo 12V AC galinta.Sababo la xiriira qaar ka mid ah dhibaatooyinka adag, sida awoodda dimming ee heerka triac ama gees hogaamiye iyo cidhifyada cidhifyada, iyo waafaqsanaanta transformers elektaroonik ah (laga bilaabo danab line AC si ay u dhaliyaan 12V AC ee hawlgalka MR16) Dhibaatada waxqabadka (taasi waa, flicker). Hawlgalka bilaashka ah), sidaas darteed, marka la barbar dhigo darawalka gelinta DC, goobta ku lug leh darawalka AC-ga ayaa aad u dhib badan.

Korontada AC (mains drive) waxaa lagu dabaqaa wadista LED-ka, guud ahaan iyada oo loo marayo tillaabooyinka sida hoos-u-dhaca, hagaajinta, shaandhaynta, xasilinta korantada (ama xasilinta hadda), iwm, si loogu beddelo awoodda AC ee awoodda DC, ka dibna la bixiyo LEDs ku habboon iyada oo loo marayo wareegga wadista ku habboon Hadda shaqeeyaa waa inuu lahaadaa wax ku oolnimada beddelka sare, cabbir yar iyo kharash yar, isla markaana xalliya dhibaatada go'doominta badbaadada.Iyadoo la tixgalinayo saameynta korontadu ku leedahay, faragelinta korantada iyo arrimaha quwada korontada waa in sidoo kale la xalliyo.Nalalka LED-yada hoose iyo kuwa dhexdhexaadka ah, qaab dhismeedka wareegga ugu fiican waa wareeg beddelka dib-u-celinta duulista ee go'doonsan;Codsiyada awoodda sare leh, wareegga beddelka buundada waa in la isticmaalaa.

-Qoritaanka goobta rakibida tamarta:

Awoodda wadista waxaa loo qaybin karaa sahay koronto oo dibadda ah iyo koronto ku dhex dhisan iyadoo loo eegayo booska rakibaadda.

(1) Koronto dibadeed

Sida magacu soo jeedinayo, sahayda korantada ee dibadda ayaa ah in lagu rakibo korontada dibadda.Guud ahaan, danabku waa mid aad u sarreeya, taas oo khatar ku ah dadka, waxaana loo baahan yahay sahay koronto oo dibadda ah.Farqiga u dhexeeya sahayda korontada ku dhex jirta ayaa ah in korontadu ay leedahay qolof, nalalka waddooyinka ayaa ah kuwa caadi ah.

(2) Koronto ku dhex jirta

Korontada ayaa lagu rakibay nalka.Guud ahaan, danabku aad buu u hooseeyaa, laga bilaabo 12V ilaa 24v, kaas oo aan wax khatar ah ku keenayn dadka.Kan caadiga ah wuxuu leeyahay nalalka guluubka.


Waqtiga boostada: Oct-22-2021