Unikezelo lwamandla ombane we-LED sisiguquli samandla esiguqula unikezelo lwamandla kwi-voltage ethile kwaye yangoku ukuqhuba i-LED ukuze ikhuphe ukukhanya.Kwiimeko eziqhelekileyo: igalelo le-LED drive power ibandakanya i-high-voltage power frequency AC (oko kukuthi amandla esixeko), i-DC ephantsi, i-high-voltage DC, i-low-voltage kunye ne-high-voltage.I-Frequency AC (efana nemveliso ye-transformer ye-elektroniki), njl.

-Ngokutsho kwendlela yokuqhuba:

(1) Uhlobo lwangoku rhoqo

a.Imveliso yangoku yesekethe ye-drive yangoku ihlala rhoqo, kodwa i-voltage ye-DC yemveliso iyahluka phakathi koluhlu oluthile kunye nobukhulu bokumelana nomthwalo.Okuncinci ukuchasana nomthwalo, i-voltage ephumayo iphantsi.Ubukhulu bokuchasana nomthwalo, imveliso Iphezulu i-voltage;

b.Isekethe eqhubekayo yangoku ayiloyiki umthwalo omfutshane-wesiphaluka, kodwa inqatshelwe ngokungqongqo ukuvula umthwalo ngokupheleleyo.

c.Ilungele isekethe eqhubekayo yokuqhuba ii-LEDs, kodwa ixabiso liphezulu.

d.Nika ingqalelo kwixabiso eliphezulu lokumelana nangoku kunye nexabiso lombane elisetyenzisiweyo, elikhawulela inani le-LED ezisetyenzisiweyo;

(2) Uhlobo olulawulwayo:

a.Xa iiparameters ezahlukeneyo kwi-voltage regulator circuit zinqunywe, i-voltage ye-output isigxina, kodwa i-output yangoku iyatshintsha ngokunyuka okanye ukuncipha komthwalo;

b.I-voltage regulator circuit ayikoyiki ukuvulwa komthwalo, kodwa inqatshelwe ngokungqongqo ukunqumla umthwalo ngokupheleleyo.

c.I-LED iqhutywe yi-voltage-stabilizing drive circuit, kwaye umtya ngamnye kufuneka wongezwe ngokuchasana okufanelekileyo ukwenza umtya ngamnye wee-LED ubonise ukukhanya okuphakathi;

d.Ukukhanya kuya kuchaphazeleka kukutshintsha kombane ukusuka ekulungisweni.

-Ukuhlelwa kwamandla okuqhuba i-LED:

(3) I-Pulse drive

Izicelo ezininzi ze-LED zifuna imisebenzi yobumnyama, njengeUkukhanyisa kwe-LEDokanye ukufiphala kokukhanya koyilo.Umsebenzi we-dimming unokuqondwa ngokuhlengahlengisa ukukhanya kunye nokuchasana kwe-LED.Ukunciphisa nje umsinga wesixhobo unokukwazi ukunyenyisaUkukhanya kwe-LEDukukhutshwa, kodwa ukuvumela i-LED isebenze phantsi kwemeko ephantsi kunomlinganiselo wangoku kuya kubangela iziphumo ezininzi ezingathandekiyo, ezifana nokuchithwa kwechromatic.Enye indlela yohlengahlengiso olulula lwangoku kukudibanisa isilawuli se-pulse wide modulation (PWM) kumqhubi we-LED.Isignali ye-PWM ayisetyenziswanga ngokuthe ngqo ukulawula i-LED, kodwa ukulawula iswitshi, njenge-MOSFET, ukubonelela okwangoku okufunekayo kwi-LED.Umlawuli we-PWM udla ngokusebenza kwi-frequency esisigxina kwaye ulungelelanise ububanzi be-pulse ukuhambelana nomjikelo womsebenzi ofunekayo.Uninzi lweechips ze-LED zangoku zisebenzisa i-PWM ukulawula ukukhutshwa kokukhanya kwe-LED.Ukuze kuqinisekiswe ukuba abantu abayi kuziva befiphaza ngokucacileyo, ukuphindaphinda kwe-PWM pulse kufuneka ibe nkulu kune-100HZ.Inzuzo ephambili yolawulo lwe-PWM kukuba i-dimming current nge-PWM ichaneke ngakumbi, nto leyo inciphisa ukuhluka kombala xa i-LED ikhupha ukukhanya.

(4) AC drive

Ngokwezicelo ezahlukeneyo, ii-AC drives zinokwahlulwa zibe ziindidi ezintathu: i-buck, i-boost, kunye ne-converter.Umahluko phakathi kwe-AC drive kunye ne-DC drive, ngaphezu kwesidingo sokulungisa kunye nokucoca igalelo le-AC, kukwakho ingxaki yokuzihlukanisa kunye nokungakhethi ukusuka kwindawo yokhuseleko.

Umqhubi we-AC input usetyenziswa kakhulu kwizibane ze-retrofit: kwi-PAR ezilishumi (i-Parabolic Aluminium Reflector, isibane esiqhelekileyo kwisigaba sobugcisa) izibane, ii-bulbs eziqhelekileyo, njl., zisebenza kwi-100V, 120V okanye i-230V AC yesibane se-MR16, idinga. ukusebenza phantsi kwe-12V igalelo le-AC.Ngenxa yeengxaki ezintsonkothileyo, njengokukwazi ukufiphala kwe-triac eqhelekileyo okanye i-edge ekhokelayo kunye ne-trailing edge dimmers, kunye nokuhambelana neziguquli zombane (ukusuka kwi-AC line voltage ukuvelisa i-12V AC yokusebenza kwesibane se-MR16) Ingxaki yokusebenza (oko kukuthi, i-flicker). -ukusebenza kwamahhala), ngoko ke, xa kuthelekiswa nomqhubi wegalelo le-DC, intsimi echaphazelekayo kumqhubi we-AC input inzima kakhulu.

Unikezelo lwamandla e-AC (i-mains drive) lusetyenziswa kwi-LED drive, ngokubanzi ngamanyathelo anje ngokuhla, ukulungiswa, ukuhluza, ukuzinziswa kwamandla ombane (okanye uzinzo lwangoku), njl., ukuguqula amandla e-AC kumandla e-DC, emva koko unikeze ii-LED ezifanelekileyo. ngokusebenzisa isiphaluka esifanelekileyo sokuqhuba Umsebenzi okhoyo kufuneka ube nokusebenza kakuhle kokuguqulwa, ubungakanani obuncinci kunye neendleko eziphantsi, kwaye ngexesha elifanayo usombulule ingxaki yokukhusela ukhuseleko.Uthathela ingqalelo impembelelo kwigridi yamandla, uphazamiseko lwe-electromagnetic kunye nemiba yomba wamandla nayo kufuneka isonjululwe.Kwii-LED zamandla aphantsi kunye naphakathi, esona sakhiwo sesekethe siyindawo ekwanti eyedwa ephelayo impukane ngasemva yokuguqula isekethe;kwizicelo zamandla aphezulu, kufuneka kusetyenziswe isekethe yokuguqula ibhulorho.

-Ukuhlelwa kwendawo yokufakela amandla:

Amandla okuqhuba anokwahlulwa kunikezelo lwamandla lwangaphandle kunye nonikezelo lwamandla olwakhelwe ngaphakathi ngokwendawo yokufaka.

(1) Umbane wangaphandle

Njengoko igama libonisa, unikezelo lwamandla lwangaphandle kukufaka unikezelo lwamandla ngaphandle.Ngokuqhelekileyo, i-voltage iphezulu kakhulu, nto leyo eyingozi yokhuseleko ebantwini, kwaye umbane wangaphandle uyafuneka.Umahluko kunye nombane owakhelwe ngaphakathi kukuba umbane unegobolondo, kwaye izibane zesitrato ziqhelekileyo.

(2) Umbane owakhelwe ngaphakathi

Ukunikezelwa kwamandla kufakwe kwisibane.Ngokubanzi, amandla ombane aphantsi ngokwentelekiso, ukusuka kwi-12v ukuya kwi-24v, engafaki bungozi bokhuseleko ebantwini.Le eqhelekileyo inezibane zebhalbhu.