Ukunikezwa kwamandla kwedrayivu ye-LED iyisiguquli samandla esiguqula ukunikezwa kwamandla kuvoltheji ethile kanye neyamanje ukushayela i-LED ukuze ikhiphe ukukhanya.Ngaphansi kwezimo ezijwayelekile: okokufaka kwamandla edrayivu ye-LED kuhlanganisa i-high-voltage power frequency AC (okungukuthi amandla edolobha), i-low-voltage DC, i-high-voltage DC, i-low-voltage kanye ne-high-voltage.I-Frequency AC (efana nokuphumayo kwe-electronic transformer), njll.

-Ngokuhambisana nendlela yokushayela:

(1) Uhlobo lwamanje oluqhubekayo

a.Umphumela wamanje wesekethe yedrayivu yamanje ayishintshi, kodwa amandla kagesi e-DC ahluka phakathi kwebanga elithile ngosayizi wokumelana nomthwalo.Uma kuncane ukumelana nomthwalo, i-voltage ephumayo iyancipha.Uma kukhulu ukumelana nomthwalo, okukhiphayo Ukuphakama kwe-voltage;

b.Umjikelezo wamanje oqhubekayo awesabi umthwalo we-short-circuit, kodwa uvinjelwe ngokuphelele ukuvula umthwalo ngokuphelele.

c.Ilungele umjikelezo oqhubekayo wedrayivu wokushayela ama-LED, kepha intengo iphakeme kakhulu.

d.Naka inani eliphezulu lokumelana namanje kanye nenani le-voltage elisetshenzisiwe, elikhawulela inani lama-LED asetshenzisiwe;

(2) Uhlobo olulawulwayo:

a.Lapho imingcele ehlukahlukene kumjikelezo we-voltage regulator inqunywa, i-voltage ephumayo ilungisiwe, kodwa ukukhishwa kwamanje kushintsha ngokunyuka noma ukwehla komthwalo;

b.I-voltage regulator circuit ayikwesabi ukuvulwa komthwalo, kodwa inqatshelwe ngokuphelele ukufinyeza umthwalo ngokuphelele.

c.I-LED iqhutshwa umjikelezo we-voltage-stabilizing drive, futhi intambo ngayinye idinga ukungezwa ngokuphikiswa okufanele ukuze wenze uchungechunge ngalunye lwama-LED lubonise ukukhanya okumaphakathi;

d.Ukukhanya kuzothinteka ngokushintsha kwamandla kagesi kusukela ekulungisweni.

-Ukuhlukaniswa kwamandla wedrayivu ye-LED:

(3) Ukushayela kwe-Pulse

Izinhlelo zokusebenza eziningi ze-LED zidinga imisebenzi yokufiphalisa, njengeUkukhanyisa kwe-LEDnoma ukufiphala kokukhanyisa kwezakhiwo.Umsebenzi wokufiphalisa ungenziwa ngokulungisa ukukhanya nokugqama kwe-LED.Ukumane unciphise ukusebenza kwamanje kwedivayisi kungakwazi ukulungisaUkukhanya kwe-LEDukukhishwa, kodwa ukuvumela i-LED isebenze ngaphansi kwesimo esingaphansi kwesilinganiso samanje kuzodala imiphumela eminingi engathandeki, njengokuphambana kwe-chromatic.Enye indlela yokulungiswa okulula kwamanje ukuhlanganisa isilawuli se-pulse width modulation (PWM) kumshayeli we-LED.Isignali ye-PWM ayisetshenziselwa ngokuqondile ukulawula i-LED, kodwa ukulawula iswishi, njenge-MOSFET, ukuze inikeze amandla amanje adingekayo ku-LED.Isilawuli se-PWM sivamise ukusebenza ngefrikhwensi engaguquki futhi silungisa ububanzi beshayela ukuze lufane nomjikelezo odingekayo.Ama-chips amaningi amanje e-LED asebenzisa i-PWM ukulawula ukuphuma kokukhanya kwe-LED.Ukuze kuqinisekiswe ukuthi abantu ngeke bazizwe becwayiza ngokusobala, imvamisa ye-PWM pulse kumele ibe nkulu kuno-100HZ.Inzuzo enkulu yokulawula kwe-PWM ukuthi i-dimming current nge-PWM inembe kakhulu, enciphisa umehluko wombala lapho i-LED ikhipha ukukhanya.

(4) Idrayivu ye-AC

Ngokwezinhlelo zokusebenza ezihlukene, amadrayivu e-AC angabuye ahlukaniswe abe izinhlobo ezintathu: buck, boost, and converter.Umehluko phakathi kwedrayivu ye-AC nedrayivu ye-DC, ngaphezu kwesidingo sokulungisa nokuhlunga okokufaka kwe-AC, kuphinde kube nenkinga yokuzihlukanisa nokungahlukanisi ukusuka endaweni yokubuka yokuphepha.

Umshayeli wokufaka we-AC usetshenziselwa ikakhulukazi amalambu okubuyisela: kuma-PAR (Parabolic Aluminium Reflector, isibani esivamile esiteji sochwepheshe) amalambu, ama-standard bulb, njll., asebenza ku-100V, 120V noma 230V AC Isibani se-MR16, sidinga ukusebenza ngaphansi kokufaka kwe-12V AC.Ngenxa yezinkinga ezithile eziyinkimbinkimbi, ezifana nekhono lokufiphaza le-triac evamile noma ama-edge aholayo kanye nezibani zonqenqema ezilandelanayo, nokuhambisana neziguquli zikagesi (kusuka ku-AC line voltage ukukhiqiza i-12V AC yokusebenza kwesibani se-MR16) Inkinga yokusebenza (okungukuthi, ukucwayiza -ukusebenza kwamahhala), ngakho-ke, uma kuqhathaniswa nomshayeli wokufaka we-DC, inkambu ehilelekile kumshayeli wokufaka we-AC iyinkimbinkimbi kakhulu.

Ukunikezwa kwamandla kagesi e-AC (ama-mains drive) kusetshenziswa kudrayivu ye-LED, ngokuvamile ngezinyathelo ezinjengokwehla, ukulungisa, ukuhlunga, ukuqina kwamandla kagesi (noma ukuzinza kwamanje), njll., ukuguqula amandla e-AC abe amandla e-DC, bese uhlinzeka ngama-LED afanelekile. ngokusebenzisa isifunda sedrayivu esifanele Umsebenzi wamanje kufanele ube nokusebenza kahle kokuguqulwa okuphezulu, usayizi omncane kanye nezindleko eziphansi, futhi ngesikhathi esifanayo ukuxazulula inkinga yokuhlukaniswa nokuphepha.Kucatshangelwa umthelela kugridi yamandla, ukuphazamiseka kukazibuthe kanye nezinkinga zesici samandla nazo kufanele zixazululwe.Kuma-LED anamandla aphansi naphakathi, ukwakheka kwesekethe okuhle kakhulu kuyisekethe yokuguqula impukane ene-single-ended back converter;ngezinhlelo zokusebenza zamandla aphezulu, isifunda sokuguqula ibhuloho kufanele sisetshenziswe.

-Ukuhlukaniswa kwendawo yokufaka amandla:

Amandla eDrayivu angahlukaniswa abe amandla angaphandle kanye nokunikezwa kwamandla okwakhelwe ngaphakathi ngokuya ngendawo yokufaka.

(1) Ukunikezwa kwamandla kwangaphandle

Njengoba igama liphakamisa, ukunikezwa kwamandla kwangaphandle ukufaka ugesi ngaphandle.Ngokuvamile, i-voltage iphakeme ngokuqhathaniswa, okuyingozi yokuphepha kubantu, futhi ukunikezwa kwamandla kwangaphandle kuyadingeka.Umehluko ngokunikezwa kwamandla okwakhelwe ngaphakathi ukuthi ugesi unegobolondo, futhi izibani zomgwaqo zivamile.

(2) Ugesi owakhelwe ngaphakathi

Ukunikezwa kwamandla kufakwe esibani.Ngokuvamile, i-voltage iphansi uma kuqhathaniswa, isuka ku-12v iye ku-24v, engazibeki izingozi zokuphepha kubantu.Lesi esivamile sinamalambu amalambu.