Kukho iintlobo ezininzi zeemveliso ze-elektroniki ze-LED, kodwa iimpawu zabo eziqhelekileyo kukuba kufuneka basebenzise umbane we-DC kunye nombane ophantsi wokusebenza wesixhobo esinye, kunye nesekethe yokuguqula kufuneka isetyenziswe xa kusetyenziswa umbane wesixeko.Kwiimeko ezahlukeneyo zokusetyenziswa, kukho izisombululo ezahlukeneyo ekufezekisweni kobugcisa bomguquli wamandla we-LED.

Ngokutsho kwamandla ombane ombane, abaqhubi be-LED banokuhlulwa babe ngamacandelo amathathu: enye ibhetri-powered, ikakhulu isetyenziselwa iimveliso zombane eziphathekayo, ukuqhuba ii-LED ezimhlophe eziphantsi kwamandla aphantsi kunye naphakathi;enye ibonelelo lombane elingaphezu kwe-5, elinikwa amandla ombane azinzileyo okanye ibhetri Ubonelelo lwaMandla, olufana nokuhla, ukuhla, ukuhla kunye neziguquli ze-DC (iziguquli; eyesithathu inikwa amandla ngokuthe ngqo ngoomatshini abakhulu (110V). okanye 220V) okanye ehambelanayo high-voltage ngqo lwangoku (ezifana 40 ~ 400V), leyo ikakhulu isetyenziselwa inkamela amandla aphezulu White LED, ezifana inyathelo-ezantsi DC/DC converter.

1. Iskim sokuqhuba ngebhetri

Amandla ombane wokubonelela ngebhetri ngokuqhelekileyo yi-0.8 ~ 1.65V.Kwizixhobo zokukhanyisa zamandla aphantsi ezifana neziboniso ze-LED, le yinto eqhelekileyo yokusetyenziswa.Le ndlela ifaneleka kakhulu kwiimveliso ze-elektroniki eziphathwayo zokuqhuba ii-LED ezimhlophe zamandla aphantsi kunye naphakathi, ezifana nezibane ze-LED, izibane eziphuthumayo ze-LED, izibane zedesika zokulondoloza amandla, njl. Ukuqwalasela ukuba kunokwenzeka ukusebenza kunye nebhetri ye-AA kunye unomthamo omncinci, esona sisombululo sobugcisa sisiguquli sokunyusa impompo yentlawulo, njengokunyusa i-DC Zhuang (i-converter okanye i-boost (okanye I-converter encinci ye-charge pump ye-buck-boost type ngabaqhubi abasebenzisa iisekethe ze-LDO.

2. Umbane ophezulu kunye nesikimu sokuqhuba esomileyo

Iskimu sonikezelo lwamandla ombane ophantsi nonamandla ombane angaphezulu kwe-5 sisebenzisa unikezelo lwamandla oluzinzile oluzinzileyo okanye ibhetri ukunika amandla.Ixabiso lombane lombane we-LED lihlala liphezulu kunokwehla kombane we-LED, oko kukuthi, lihlala lilikhulu kune-5V, njenge-6V, 9V, 12V, 24V okanye ngaphezulu.Kule meko, ubukhulu becala inikwe amandla ngumbane ozinzile okanye ibhetri yokuqhuba izibane ze-LED.Olu hlobo lweskimu sobonelelo lwamandla kufuneka lusombulule ingxaki yonikezelo lwamandla ukuhla.Usetyenziso oluqhelekileyo lubandakanya izibane zelanga, izibane zegadi yelanga, kunye neenkqubo zokukhanyisa iimoto.

3. Isikimu seDrayivu esiqhutywa ngokuthe ngqo ngamabhonkco okanye i-high-voltage ngqo yangoku

Esi sisombululo sixhaswe ngokuthe ngqo kwi-mains (100V okanye i-220V) okanye i-high-voltage ehambelanayo yangoku ngokuthe ngqo, kwaye isetyenziselwa ukuqhuba izibane ezimhlophe ze-LED ezimhlophe.I-Mains drive yindlela yokubonelela ngombane kunye nomlinganiselo wexabiso eliphezulu lomboniso we-LED, kwaye lukhokelo lophuhliso lokuthandwa kunye nokusetyenziswa kokukhanya kwe-LED.

Xa usebenzisa amandla amakhulu ukuqhuba i-LED, kuyimfuneko ukuxazulula ingxaki yokunciphisa i-voltage kunye nokulungiswa, kodwa kwakhona ube nokusebenza kakuhle kokuguqulwa okuphezulu, umthamo omncinci kunye neendleko eziphantsi.Ukongeza, umba wokwahlulwa kokhuseleko kufuneka usonjululwe.Uthathela ingqalelo impembelelo kwigridi yamandla, uphazamiseko lwe-electromagnetic kunye nemiba yomba wamandla nayo kufuneka isonjululwe.Kwii-LEDs zamandla aphakathi kunye naphantsi, esona sakhiwo sesekethe sisona siguquli-sodwa se-flyback esiphela.Ukusetyenziswa kwamandla aphezulu, iisekethe zokuguqula ibhulorho kufuneka zisetyenziswe.

Ukuqhuba kwe-LED, umngeni ophambili kukungahambelani kwesiboniso se-LED.Oku kubonakaliswa ikakhulu kwinto yokuba umbane ohamba phambili we-LED uya kutshintsha ngoku kunye nobushushu, amandla ombane angaphambili ezixhobo ezahlukeneyo ze-LED aya kwahluka, "indawo yombala" ye-LED iya kukhukuliseka ngoku kunye nobushushu, kwaye I-LED kufuneka ibe phakathi kweemfuno zenkcazo.Sebenza ngaphakathi kuluhlu ukuze ufumane umsebenzi othembekileyo.Umsebenzi oyintloko womqhubi we-LED kukukhawulela okwangoku phantsi kweemeko zokusebenza, kungakhathaliseki ukuba utshintsho kwiimeko zokufaka kunye nombane ohamba phambili.

Kwisekethe ye-LED ye-drive, ngaphezu kokuzinza ngokuqhubekayo ngoku, kukho ezinye iimfuno eziphambili.Umzekelo, ukuba ufuna ukwenza ukukhanya kwe-LED, kufuneka unikeze iteknoloji ye-PWM, kunye ne-Frequency PWM frequency ye-LED dimming yi-1 ~ 3kHz.Ukongeza, amandla okuphatha amandla esekethe ye-LED drive kufuneka anele, abe namandla, akwazi ukumelana neemeko ezahlukeneyo zeempazamo, kwaye kulula ukuphumeza.Kuyafaneleka ukukhankanya oko ngenxa yokuba i-LED ihlala ikwinqanaba eliphezulu kwaye ayiyi kukhukuliseka.

Ekukhetheni izikimu zokuqhuba umboniso we-LED, i-inductance boost DC / DC yaqwalaselwa ngaphambili.Kwiminyaka yakutshanje, okwangoku ukuba umqhubi wempompo yentlawulo unokukhupha ukhuphukile ukusuka kumakhulu ambalwa mA ukuya kwi-1.2A.Ngoko ke, ezi zimbini Imveliso yohlobo lwe-actuator iyafana.