LED ifakiwe kwinethiwekhi 220 Driving

Lube izibane LED ukukhanyisa ethandwa kakhulu. Eyona nto kukuba le usasazo ayikho onamandla kuphela ngokwaneleyo, kodwa iindleko-olusebenzayo. Light-di- - a diode semiconductor emvulophini epoxy.

Ekuqaleni baba kakhulu buthathaka kwaye iyabiza. Kodwa ekuhambeni imveliso ziye ukhuphe ilight eqaqambileyo kakhulu omhlophe noluhlaza. Ngexesha ixabiso lweentengiso bawa. Okwangoku, kukho LED nawuphi na umbala, nto leyo isizathu yokuzisebenzisa kwiinkalo ezahlukeneyo. Ezi ziquka cula amagumbi ezahlukeneyo, imiboniso ukukhanyisa kunye iimpawu, ukusetyenziswa kwemiqondiso yendlela kunye iirobhothi kule ndlwana kunye izibane-mafutha, Funny njalo njalo. D.

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LED asele unamandla amancinane, kangangokuba usasazo onjalo ngokuthe ukubuyisela imithombo ukukhanya ekhoyo ngaphambili. Ezivenkileni ezobuchwepheshe, unako ukuthenga ezahlukeneyo izinto ezisekelwe LED izibane, ukusukela isibane eqhelekileyo basihambise LED, kokugqiba iiphaneli LED. Bonke kufuneka babe kukuba eziwafaka ifuna current we-12 okanye 24 V.

Ngokungafaniyo neminye imithombo ukukhanya ezisebenzisa i element ukufudumeza lisetyenziswa kwiqhezu semiconductor elenza radiation enombala phantsi kwempembelelo yangoku.

Ukuze siqonde isekethi LED 220 zifakiwe kwi-network, kufuneka uqale athi yena akayi kuba nako ukutya ngqo kwi-network. Ngoko ke, ukuba basebenze kunye LED kufuneka ulandele ulandelelwano oluthile eziwafaka zothungelwano ophezulu ombane.

Iimpawu zombane of LED

Ezona mpawu zangoku-ombane le LED - oko umgca epholileyo. Oko kukuthi, ukuba ombane kuya kwandisa kwi kancinane ubuncinane, ngoko ke ngoku uya kwandisa kabukhali, oku kuqulatha nobushushu ye-LED, elandelwa baphelelwe. Ukuze uphephe oku, kuyimfuneko ukuquka kwi resistor yesekethe yangoku umda.

Kodwa ke kubalulekile ukuba ukulibala malunga ombane ubuninzi reverse LED 20 V. Xa uqhagamshelwano nenethiwekhi umva wokwephuka uya konyukele lombane 315 volts, oko kukuthi amaxesha 1.41 ngaphezu yangoku. Inyaniso kukuba lo womnatha ka 220 volts AC, kwaye ekuqaleni iya kwicala elinye aze emva kwakhona.

Ukuze kuthintelwe Nokukhuza ngoku kwelinye icala yaloo mmandla uqhagamshelwano LED kufuneka ihambe ngolu hlobo lulandelayo: a yesekethe diode ivuliwe. Akazange awuphoswa ombane umva. Xa oku kufuneka kube ngaxeshanye.

Enye wesekethe usuke womnatha LED 220 yi ufakelo LED ezimbini ezilwa ngaxeshanye.

Ke ukuba lo mbane amandla kokushiya resistor, oko azikhethekanga kakuhle. Ngenxa yokuba resistor uya zikhupha amandla kakhulu. Umzekelo, xa usebenzisa 24 kOhm resistor, lo ukusasaza amandla nama-3 watts. Xa diode series amandla tsakisi ngesiqingatha. ombane Reverse kwi diode kufuneka alingane 400 V. Xa kubalwa ii-LED ezimbini sibali, uyakwazi ukubeka resistor ezimbini dvuhvattnyh. besenza kufuneka kabini njengoko ngaphantsi. Kusenokwenzeka ukuba kwimeko enye ziikristale ezimbini imibala eyahlukeneyo. Ngokuqhelekileyo, omnye crystal of ebomvu, omnye oluhlaza.

Kwimeko apho resistor na ohms 200, phambi diode wokukhuselwa efunekayo, ukususela ngoku kule khosi reverse sincinci kwaye akayi kubangela ukutshatyalaliswa yikristale. Esi sikimu ngokubandakanywa LED kwi inethiwekhi enye ethile - nobumhlophe encinane ibhalbhu. kokuba usetyenziswe, umz, ukukhanyisa shintsha endlwini.

Ngenxa yokuba i zangoku kwi-mbane AC, it ikuvumela ukuba uphephe inkcitho engeyomfuneko lombane ngokushushubeza umoya esebenzisa ngokunciphisa resistor. Ekubeni lo msebenzi ukumelana capacitor. Ngapha koko, igcine le ifildi lwangoku kwaye ayikho shushu.

Kubalulekile ukukhumbula ukuba ekondensa kufuneka kudlule zombini umjikelo mbane isiqingatha, kangangokuba wakwazi ukuba kudlule umntu ifildi yangoku. Yaye ekubeni LED liqhuba kuphela kwicala elinye, kuyimfuneko ukuba abeke diode eqhelekileyo (LED enye olongezelelweyo) anti-ukufana LED. Uya kwandula ke miss ixesha isiqingatha sesibini.

Xa network ziguquka yesekethe LED 220 icinyiwe, le ombane kwi capacitor iya kuhlala. Maxa wambi nkqu awo ezele 315 V. It kusongela ugwayimbo yangoku. Ukuze uphephe oku, kufuneka unikeze ukongeza capacitor nokuchithela resistor has ixabiso ubuso enkulu, nto leyo kwimeko loqhawulo kuthungelwano ikhulule kwangoko capacitor. Ngale resistor ngexesha lomsebenzi yayo yesiqhelo, uhamba kancinane, musa ebilandelwa.

Ukukhuselwa ngokuchasene idaleka yokutshaja zangoku kunye fuse njengoko ephantsi ukunganyangeki resistor. I capacitor kufuneka isiko, nto leyo yenzelwe i alternating yesekethe zangoku hayi ngaphantsi kwe-250 V, okanye 400 V.

Scheme series uqhagamshelo lwe zebhalbhu ukukhanya LED ibandakanya ufakelo eziliqela LED enxulumene kule series. Kulo mzekelo, omnye kuphela counter diode.

Ekubeni nethontsi ombane ye yangoku lonke resistor ingaphantsi, ukususela umthombo wamandla kufuneka sisuswe yotsalo ombane iyonke lonke LED.

Kuyimfuneko ukuba ukucwangcisa diode elalibalwa elingana zangoku kwi yangoku eliqukuqela ngokusebenzisa ii-LED, kunye ombane reverse kufuneka ilingane umdibaniso ntshikilelo kwi LED. Kungcono usebenzise i nokuba inani LED kunye ukudibanisa kuwo antiparallel.

Xa chain angaba LED ngaphezu kweshumi. Ukubala capacitor, kufuneka sisuswe kuthungelwano incopho ombane 315 umlinganiselo zokuquba lombane LED. Ngenxa yoko, sifumanisa inani ukuhla ombane ngapha capacitor.

Enziwe Udibaniso LED

• Impazamo yokuqala - oku xa LED elidityaniswe ngaphandle stop, ngokuthe ngqo ukuya kumthombo. Kulo mzekelo, i ngokukhawuleza kakhulu fail LED, ngenxa yokunqongophala ulawulo isixa yangoku.
• Impazamo yesibini - kudityaniso LED resistor eqhelekileyo amalungiselelo ngaxeshanye. Ngenxa yokuba kukho parameters ongenabuyambo, ii-LED ukukhanya yokutsha ziya kwahluka. Ngaphandle koko, kwimeko omnye LED nakanjani, kuza kubakho ukonyuka kwe-LED yangoku yesibini, ngenxa apho ezikwaziyo ukuvutha. Ngoko ke, xa kusetyenziswa resistor, kuyimfuneko ukuba uqhagamshele i-LED in series. Oku kukuvumela ukuba ukugcina ngoku enye ekubaleni resistor wabeka ombane LED.
• Le mpazamo wesithathu - oku xa LED, apho ibalwa yangoku ezahlukeneyo, iquka la manqaku. Esi sesona sizathu sokuba omnye wabo uya alitshise phantsi, okanye ngolunye uhlobo - ukusebenza ukuguga.
• Impazamo lesine - kukusebenzisa i resistor ogama uxhathiso asanelanga. Ngenxa yoku, i yangoku ayahamba na LED, kuya kuba inkulu kakhulu. Ezinye amandla umbane ophakamileyo, aguqulwa abe bubushushu, ebangela nobushushu, ngathi ngembonakalo yikristale kunye nokwehla ebalulekileyo yobomi yayo luncedo. Isizathu soku - ngekroba iziphene. Ukuba ukunyuka ombane ngakumbi, kwaye p-n-inguqu kumo, oko kuya kukhokelela ekuncipheni kakuhle quantum lwangaphakathi. Ngenxa ukuwa yobumhlophe LED, kwaye ngembonakalo yikristale iya phantsi kwintshabalalo.
• Imposiso Fifth - LED ku 220V, nto leyo isekethi elula kakhulu kungekho umda ombane umva. Le ombane eliphezulu elivumelekileyo ngasemva xa ufuna ii-LED kakhulu - malunga ne-2 V, kunye ombane reverse ifuthe-komjikelo nesiqingatha kwi-drop ombane, nto leyo ilingana kwi ombane unikezelo xa itshixiwe LED.
• Isizathu lesithandathu - kukusebenzisa i resistor, ogama amandla akwanelanga. Oku kudale resistor zokufudumeza eyomeleleyo inkqubo yokugquma ukunyibilika, ojongene kunye nokufakelwa yayo. Ke iqala ukuba ipeyinti elinyukayo phantsi kweempembelelo amaqondo obushushu aphezulu imbubhiso ezayo. Zonke ngenxa yokuba lo resistor uyakhululeka kuphela amandla apho kuyo kwathiwa yenzelwe.

Icebo ukufakwa LED enamandla

To connect eliphezulu-amandla LED kufuneka usebenzise i-AC / DC-converters, apho aphuma yangoku. Oku kuya kunceda ukuba alahle ukusetyenziswa resistors okanye IC LED umqhubi. Ngaxeshanye singenza uqhagamshelo olulula le-LED, i ukusetyenziswa obutofotofo kule nkqubo inciphise neendleko.

Ngaphambi kokuba babuyele kwi LED-mbane amandla, ukuqinisekisa ukuthembeka eziwafaka kumaqela umbane. Musa ukuqhagamshela inkqubo ukuya unikezelo lwamandla, ephantsi kwempixano, kungenjalo kuya kukhokelela ukwehluleka LED.

5050. Impawu LED. Icebo ukufakwa

Kuba ezisezantsi namandla ii-LED kwakhona ii-LED umphezulu entabeni (SMD). Amaninzi, babefudula ukuba kukhanyisa maqhosha iselula okanye ukuthimba zokuhombisa LED.

LED 5050 (tipokorpusa ubukhulu: 5 mm 5) - kukho imithombo ukukhanya semiconductor, leyo ombane ngqo 1,8-3,4 V kunye namandla ngqo yangoku nomkhenkce nganye - 25 Ma. Uphawu LED SMD 5050 usendleleni yokuba ukwakhiwa kwayo iqulathe ziikristale amathathu, ezivumela LED okhupha imibala ezininzi. Zibizwa RGB-LED. Izindlu kubo eyenziwe ngeplastiki ubushushu ezingatshiyo. Le lens usasazeko ngaphaya kwaye atywinwe kunye epoxy.

Ukuze i-LED 5050 ukusebenza ixesha elide kangangoko kunokwenzeka, ukuba kufuneka adityaniswe kwi resistances ngegama series. Kuba ukuthembeka ubuninzi kwisekethe nganye kwi kwikhonkco ngcono makanxibelelanise resistor eyahlukileyo.

Izicwangciso-qhinga nifaka LED ezibengezelayo

A ezidanyazayo LED - a LED, nto leyo silelinye lamakhonkco emanyanisiweyo ukubetha generator. Ubuninzi ukubaneka ivela 1.5 ukuya 3 Hz.

Ngaphandle kwento yokuba ezidanyazayo LED compact ngokwaneleyo, oko ligcinwe semiconductor chip oscillator, yaye izinto ezongezelelweyo kuyo.

Ke ukuba obumbeneyo ombane LED, oko jikelele kwaye zisenokwahluka. Umzekelo, ngokuba ephezulu-Z yi volts-14, kwaye ephantsi ombane 1,8-5 volts.

Ngako oko, umgangatho omhle ezibengezelayo LED angaquka, ukongeza kwisixhobo amancinci ubungakanani kunye kweesiginali ukukhanya compact, ukanti ezininzi ezibanzi ombane avumelekile. Ukongezelela, oko kukhupha imibala eyahlukileyo.

Kwiintlobo ezithile ze-LED ezibengezelayo zifakiwe ezintathu LED ezahlukeneyo anemibala ukuba babe rhoqo ezahlukeneyo loqhambuko.

Ukuqhwanyazaemva LED wamana nenoqoqosho. Isibakala sokuba le sekethe yekhompyutha LED senziwa MOSFETs, ngaloo ndlela ezibengezelayo diode na kutshintshwa kuze kufakwe iyunithi eyodwa esebenzayo. Ngenxa imilinganiso ezincinane ii-LED ezibengezelayo idla ngokusetyenziswa kwizixhobo compact efuna izinto ezincinane eqhumayo.

Kulo mzobo, i-LED ebengezelayo ibonisa ngendlela efanayo eqhelekileyo, ngaphandle nje kwento yokuba shooter ayikho nje ngqo umgca kunye namthanyana. Ngenxa yoko, zimele LED odanyazayo.

Ngokusebenzisa kwimeko ngaphaya ezibengezelayo LED ibonisa ukuba iqulathe iinxalenye ezimbini. e kwipali engakhiyo isiseko cathode apho, kuba kukukhanya ayikhuphi chip diode, yaye umvelisi chip terminal anode ibekwe.

Oxhulumene onke amacandelo e-isixhobo usebenzisa wire Jumpers ezintathu zegolide. Ukuze ukwahlula ukusuka LED yesiqhelo obumbeneyo njengembumbulu, ngokwaneleyo ukuba abone umzimba ukukhanya ngaphaya. Apho kubonakala ezimbini ubungakanani zeendawana ngokulinganayo.

On zeendawana enye crystalline emitter cube ukukhanya. Siqulathe zomhlaba ingxubevange esinqabileyo. Ukuze kwandiswe imveliso ukukhanya ingqalelo ngokunjalo beamforming usebenzisa aluminiyam kugqame ezizekelisayo. Oku kugqame ezibengezelayo LED zincinane kunesiqhelo. Oku kungenxa yokuba isiqingatha iqokobhe yesibini zinoboya IC.

Phakathi kwezi zimbini substrates zidluliselwa kunye Jumpers ezimbini ngocingo yegolide. Ngokumalunga izindlu obumbeneyo njengembumbulu LED, ukuze mawenziwe diffuser okanye matte iiplastiki, okanye seplastikhi esitransparenti.

Ngenxa yokuba le emitter obumbeneyo njengembumbulu LED engekho esqwini yolingano le yezindlu, kuba ukusebenza ukhanyiso uniform kuyimfuneko ukuba kusetyenziswe monolithic kwentamo umbala nefayibha.

Ubukho iqumrhu ngaphaya zingafunyanwa kuphela kwi-LED odanyazayo of ubukhulu ezinkulu, apho kufuneka ipatheni radiation elimxinwa.

Ngenxa yokuba oscillator oluvela rhoqo iqulathe generator zazo LED. umsebenzi wayo njalo, kwaye rhoqo imalunga 100 kHz.

Kunye eliphezulu rhoqo njini ngakumbi operable iziqalelo ehlukanisayo logic. Ngoko, ke, wenza ukwahlulwa rhoqo ukuya 1.5-3 Hz. Isizathu sokuba ukusetyenziswa ngokuhlangeneyo kunye oluphezulu rhoqo wenkunkuma isihluli frequency ukuba osezantsi-frequency oscillator ufuna capacitor kunye umthamo omkhulu ukuba besifunda-sentlalo.

Ngokuhambisa udaba oluvela rhoqo 1-3 Hz kufuna Izahluli kwimiba ubhalo. Kodwa Kwanele kubo ngokulula ingenakusetyenziswa kulophulo indawo encinane chip semiconductor. Kwi zeendawana semiconductor, ukongeza nomabi kunye master frequency wenkunkuma, i diode zokuzikhusela neqhosha elektroniki. A resistor umda sidityaniswe kwi LED ebengezelayo, ezo libalwe lombane volts-3 ukuya ku-12.

Qaphela Low LED ezidanyazayo

Njengoko ngokuba ephantsi ombane LED ukuqhwanyazaemva, ngoko ke musa ukuba resistor umda. Xa amandla wokwephuka ukhuseleko umva diode kufuna. Le ukuze ukuthintela ukusilela output wesekethe.

Umsebenzi LED eziphakamileyo ezibengezelayo inde kwaye wahamba kakuhle, le ombane unikezelo kufuneka ingadluli volts 9. Ukuba ukunyuka ombane, i ezibengezelayo ukusasaza amandla LED aya kunyuka, nto leyo eya kukhokelela ubushushu chip semiconductor. Emva koko, lo LED uya zikhanyise ukuthotywa ngenxa ukufudumeza ngokugqithiseleyo.

Xa ufuna ukukhangela serviceability ka obumbeneyo LED, ukuze wenze oku ngokukhuselekileyo, ungasebenzisa ibhetri kwi 4.5 volts kwaye lidibane uthotho kunye resistor LED of ohms 51. Power resistors kufuneka ubuncinane 0.25 watts.

LED Ayanda

Ukufakelwa LED - ngumba obaluleke kakhulu ngesizathu esilula ukuba inxulumene ngqo nempumelelo yabo.

Ekubeni LED kunye chip ongazithandiyo engatshintshiyo, kunye nobushushu, kuyimfuneko ukuba iindawo solder ngokukhawuleza kangangoko kunokwenzeka, ngaphezu akukho ngaphezu kwemizuzwana emihlanu. Ngoko ke kuyimfuneko ukuba ukusebenzisa ephantsi-amandla ngelotha insimbi. lobushushu imadlana mayingagqithi degrees 260.

Xa ngelotha Ihleli kunokwenzeka ukuba ukusebenzisa i zonyango forceps. forceps LED ska kufutshane umzimba, khon 'ukuze xa ngelotha kudala ukususwa ubushushu eyongezelelweyo evela nj. Ukuya emilenzeni LED hayi baphuke, mabangavunyelwa aguqe kakhulu. Kufuneka ngaxeshanye omnye komnye.

Ukwenzela ukuphepha sithwalisa kumphathi wesekethe okanye isixhobo kuyimfuneko ukunika fuse.

Ukuqhuba LED isiqalo ethambileyo

Ukuqhuba ngokumpuluswa nangaphandle LED - ethandwa phakathi kwabanye, ukuba abanini imoto onomdla abafuna ukuba uvumelane iimoto zabo. kusetyenziswa Esi sikimu kukhanyisa elingaphakathi isithuthi. Kodwa oku ukusetyenziswa kwayo kuphela. Oku kusetyenziswa kwezinye iindawo.

Simple LED isiqalo yesekethe athambileyo kufuneka iqulunqwe transistor, a capacitor, resistors ezimbini LED. Kufuneka pick up resistors enjalo ngoku-umda, nto leyo ukuthwala yangoku 20 ma ngokusebenzisa umtya ngamnye LED.

akayi kuba ngokupheleleyo ngaphandle phambi capacitor uqhuba ngokumpuluswa nangaphandle LED. Ivumela ukuba baqokelele. Le transistor kufuneka PNP-isakhiwo. kufuneka ibe ngaphantsi kwe-100 Ma A zangoku kwi sokuqokelela. Ukuba nkqubo LED isiqalo ethambileyo Abizelwa ngokuchanekileyo, umzekelo zokukhanya isithuthi ngaphakathi 1 yesibini iya kuba LED isiqalo ethambileyo, yaye emva evala umnyango - zivalwe egudileyo.

Beman 'kwi LED. scheme

Enye yeziphumo ukukhanyisa kunye LED yeyona khosi abashiywa. Yena ubizwa ngokuba umlilo ukubaleka. Isebenza icebo yamandla enjengale elizimeleyo. Kuba yoyilo wakhe wasebenzisa utshintsho eqhelekileyo onikezela amandla khosi iyileyo LED.

Cinga isixhobo eliquka tshipsi amabini kunye transistors ezilishumi, nto leyo kunye zenza master oscillator, ulawulo kunye Indexing ngokwayo. aka counter wokugqibela ukusuka imveliso ye ubume master oscillator ikhutshelwa kwicandelo lolawulo. Emva koko, ombane lisetyenziswe esisekweni transistor ayivule. Le anode ye-LED liqhagamshelaniswe umthombo wamandla ezintle, leyo chweba.

Ubume yesibini ivelisa iyunithi ubhalo ukuya kwimveliso elandelayo counter, kwaye ombane ibheke ezantsi kwaye oya kuvala transistor, apho LED iya off. Ngaphezu koko, bonke kwenzeka ngolandelelwano olufanayo.