Ukunikezwa kwamandla edrayivu ye-LED kuyiguquli yamandla eguqula ukunikezwa kwamandla kube yi-voltage ethile kanye nogesi ukuze kuqhutshwe i-LED ukuze ikhiphe ukukhanya. Ngaphansi kwezimo ezijwayelekile: okokufaka kwamandla edrayivu ye-LED kufaka phakathi i-AC yamandla aphezulu (okungukuthi amandla edolobha), i-DC yamandla aphansi, i-DC yamandla aphezulu, i-voltage ephansi kanye ne-voltage ephezulu. I-AC yamandla (njengokuphuma kwe-transformer kagesi), njll.

- Ngokusho kwendlela yokushayela:

(1) Uhlobo lwamanje oluqhubekayo

a. Umthamo wokukhipha wesekethe yokushayela yamanje eqhubekayo awuguquguquki, kodwa i-voltage ye-DC yokukhipha iyahlukahluka ngaphakathi kobubanzi obuthile ngosayizi wokumelana nomthwalo. Uma ukumelana nomthwalo kuncane, i-voltage yokukhipha iyancipha. Uma ukumelana nomthwalo kukhulu, umphumela uba phezulu i-voltage;

b. Isekethe yamanje engaguquki ayikwesabi ukufinyela komthwalo, kodwa akuvunyelwe ngokuphelele ukuvula umthwalo ngokuphelele.

c. Kuhle kakhulu ukuthi isekethe yokushayela yamanje eqhubekayo ishayele ama-LED, kodwa intengo iphakeme kakhulu.

d. Naka inani eliphezulu lokumelana namanje kanye ne-voltage esetshenzisiwe, elikhawulela inani lama-LED asetshenzisiwe;

(2) Uhlobo olulawulwayo:

a. Uma kunqunywa amapharamitha ahlukahlukene kusekethe yokulawula i-voltage, i-voltage yokukhipha iqinisiwe, kodwa amandla okukhipha ayashintsha ngokwanda noma ukwehla komthwalo;

b. Isekethe yokulawula i-voltage ayikwesabi ukuvulwa komthwalo, kodwa akuvunyelwe ngokuphelele ukufinyeza umthwalo ngokuphelele.

c. I-LED iqhutshwa yisekethe yokushayela eqinisa amandla kagesi, futhi intambo ngayinye idinga ukungezwa ngokumelana okufanele ukuze intambo ngayinye yama-LED ibonise ukukhanya okumaphakathi;

d. Ukukhanya kuzothinteka ushintsho lwe-voltage oluvela ekulungisweni.

–Ukuhlukaniswa kwamandla okushayela kwe-LED:

(3) I-pulse drive

Izinhlelo eziningi ze-LED zidinga imisebenzi yokufiphaza, njengokuthiUkukhanyisa kwe-LEDnoma ukufiphala kokukhanya kwezakhiwo. Umsebenzi wokufiphala ungabonakala ngokulungisa ukukhanya nokuhluka kwe-LED. Ukunciphisa nje amandla kagesi edivayisi kungakwazi ukulungisaIsibani se-LEDukukhishwa kwe-LED, kodwa ukuvumela i-LED isebenze ngaphansi kwesimo samandla aphansi kunomkhawulo olinganisiwe kuzobangela imiphumela eminingi engathandeki, njengokuphambuka kwe-chromatic. Enye indlela yokulungisa amandla alula ukuhlanganisa isilawuli se-pulse width modulation (PWM) kumshayeli we-LED. Isignali ye-PWM ayisetshenziswa ngqo ukulawula i-LED, kodwa ukulawula iswishi, njenge-MOSFET, ukunikeza amandla adingekayo ku-LED. Isilawuli se-PWM sivame ukusebenza ngemvamisa ehleliwe futhi silungisa ububanzi be-pulse ukuze buhambisane nomjikelezo womsebenzi odingekayo. Ama-chip amaningi e-LED amanje asebenzisa i-PWM ukulawula ukukhishwa kokukhanya kwe-LED. Ukuze kuqinisekiswe ukuthi abantu ngeke bazizwe bekhanya ngokusobala, imvamisa ye-PWM pulse kumele ibe ngaphezu kuka-100HZ. Inzuzo enkulu yokulawula i-PWM ukuthi amandla afiphazayo nge-PWM anembe kakhulu, okunciphisa umehluko wombala lapho i-LED ikhipha ukukhanya.

(4) Idrayivu ye-AC

Ngokwezinhlelo zokusebenza ezahlukene, ama-AC drive angahlukaniswa ngezinhlobo ezintathu: i-buck, i-boost, kanye ne-converter. Umehluko phakathi kwe-AC drive kanye ne-DC drive, ngaphezu kwesidingo sokulungisa nokuhlunga i-AC engenayo, kukhona nenkinga yokuhlukaniswa kanye nokungahlukaniswa ngokombono wokuphepha.

I-AC input driver isetshenziswa kakhulu ezibanini zokulungisa kabusha: ezibanini eziyishumi ze-PAR (Parabolic Aluminium Reflector, isibani esivamile esiteji sobungcweti), amabhalbhu ajwayelekile, njll., asebenza ku-100V, 120V noma 230V AC. Esibanini se-MR16, sidinga ukusebenza ngaphansi kokufakwa kwe-12V AC. Ngenxa yezinkinga ezithile eziyinkimbinkimbi, njengekhono lokufiphaza kwe-triac ejwayelekile noma i-leading edge kanye ne-trailing edge dimmers, kanye nokuhambisana nama-transformer kagesi (kusukela ku-AC line voltage ukukhiqiza i-12V AC yokusebenza kwesibani se-MR16). Inkinga yokusebenza (okungukuthi, ukusebenza okungena-flicker), ngakho-ke, uma kuqhathaniswa nomshayeli wokufaka we-DC, insimu ehilelekile kumshayeli wokufaka we-AC iyinkimbinkimbi kakhulu.

Ukunikezwa kwamandla kagesi e-AC (i-mains drive) kusetshenziswa ku-LED drive, ngokuvamile ngezinyathelo ezifana nokwehla kancane kancane, ukulungiswa, ukuhlunga, ukuzinza kwamandla kagesi (noma ukuzinza kwamandla kagesi), njll., ukuguqula amandla e-AC abe amandla e-DC, bese kuhlinzeka ngama-LED afanele ngesekethe yokushayela efanele. Ugesi osebenzayo kumele ube nokusebenza kahle kokuguqulwa okuphezulu, usayizi omncane kanye nezindleko eziphansi, futhi ngesikhathi esifanayo uxazulule inkinga yokuhlukaniswa kokuphepha. Uma kucatshangelwa umthelela kugridi yamandla, ukuphazamiseka kwe-electromagnetic kanye nezinkinga zama-power factor nazo kumele zixazululwe. Kuma-LED anamandla aphansi naphakathi, isakhiwo sesekethe esingcono kakhulu yisekethe yokuguqula emuva ene-single-end eyodwa; kwizicelo zamandla aphezulu, kufanele kusetshenziswe isekethe yokuguqula ibhuloho.

–Isigaba sendawo yokufaka ugesi:

Amandla edrayivu angahlukaniswa ngogesi wangaphandle kanye nogesi owakhelwe ngaphakathi ngokuya ngesimo sokufakwa.

(1) Ukunikezwa kwamandla kwangaphandle

Njengoba igama lisho, ugesi wangaphandle uwukufaka ugesi ngaphandle. Ngokuvamile, i-voltage iphezulu, okuyingozi yokuphepha kubantu, futhi kudingeka ugesi wangaphandle. Umehluko ngogesi owakhelwe ngaphakathi ukuthi ugesi unegobolondo, kanti izibani zasemgwaqweni zivamile.

(2) Ukunikezwa kwamandla okwakhelwe ngaphakathi

Ugesi ufakwa esibanini. Ngokuvamile, i-voltage iphansi kakhulu, kusukela ku-12v kuya ku-24v, okungabangeli zingozi zokuphepha kubantu. Le evamile inezibani zama-bulb.