Kufuneka-ubone: Ulwazi lwe-LED Driver Power Knowledge

Ukutshatyalaliswa kobushushu, amandla okuqhuba, kunye nemithombo yokukhanya zezona ndawo zibaluleke kakhulu kwimveliso yokukhanya ye-LED elungileyo. Nangona ukutshatyalaliswa kobushushu kubaluleke kakhulu, umphumo wokutshatyalaliswa kobushushu uchaphazela ngokuthe ngqo umgangatho wobomi bemveliso yokukhanyisa, kodwa umthombo wokukhanya uyinxalenye ephambili yemveliso yonke. Ukuzinza kobomi kunye nemveliso yangoku kunye ne-voltage yonikezelo lwamandla ngokwawo kunempembelelo enkulu kumgangatho wobomi bemveliso. Umbane womqhubi we-LED uyimveliso exhasayo. Okwangoku, umgangatho wobonelelo lwamandla kwimarike awulingani. Oku kulandelayo kubonelela ngolwazi oluhambelanayo lwamandla omqhubi we-LED. 1. Yintoni i-LED drive power supply Umbane we-LED drive uguqula unikezelo lwamandla kwi-voltage ethile yangoku ukuqhuba isiguquli se-LED sokukhanya-emitting voltage. Ngokuqhelekileyo: igalelo le-LED drive power iquka i-high -voltage frequency AC (oko kukuthi, amandla esixeko), i-voltage ephantsi DC DC , High -voltage DC, i-low -voltage kunye ne-high-frequency AC (efana nemveliso ye-electronic transformers), njl. Isiphumo sonikezelo lwamandla ombane we-LED ubukhulu becala ngumthombo wangoku ongaguqukiyo onokuthi utshintshe i-voltage kunye notshintsho ekuncitshisweni kwexabiso lombane ohamba phambili we-LED. Amacandelo angundoqo ombane we-LED aquka isilawuli sokutshintsha, ukungeniswa, ukutshintshela inxalenye (MOSFET), ukuxhathisa impendulo, isixhobo sokucoca igalelo, isixhobo sokucoca imveliso, njl. Ngokweemfuno zezihlandlo ezahlukeneyo, kufuneka kubekho iisekethe zokukhusela i-input overvoltage, i-input -ukungabikho kweesekethe zokukhusela uxinzelelo, ukukhuselwa kwendlela yokuvulwa kwe-LED, ukhuseleko lwe-overcurrent kunye nezinye iisekethe. 2. Iimpawu zonikezelo lwamandla ombane we-LED (1) Ukuthembeka okuphezulu kufana namandla omqhubi wezibane zesitalato ze-LED, ezifakwe kwindawo ephakamileyo, ayilungele ukulungiswa, kunye neendleko zokugcinwa nazo zikhulu. (2) Ukuphumelela okuphezulu kwe-LED yimveliso yokonga amandla, kwaye ukusebenza kakuhle kwamandla okuqhuba kuphezulu. Kubaluleke kakhulu ukutshatyalaliswa kobushushu bokunikezelwa kwamandla kwisibane. Ukusebenza kokunikezelwa kwamandla kuphezulu, ukulahlekelwa kwayo ubunzima kuncinci, kwaye ukushisa kwisibane kuya kuba kuncinci, okuya kunciphisa ukunyuka kweqondo lokushisa kwesibane. Kuyinzuzo ukulibazisa ukusilela kokukhanya kwe-LED. (3) Izinto eziphezulu zamandla kunye nezinto zamandla ziyimfuneko yomthwalo wegridi yegridi. Ngokuqhelekileyo, izixhobo zombane ezingaphantsi kwe-70 watts, akukho zikhombisi ezinyanzelekileyo. Nangona umbane omnye unamandla aphantsi, izinto eziphantsi kwamandla zinempembelelo encinci kwigridi yamandla, ukusetyenziswa kokukhanya ebusuku, uhlobo olufanayo lomthwalo lugxininiswe kakhulu, luya kubangela ungcoliseko olubi kakhulu kwigridi yamandla. Kumandla omqhubi we-LED wama-watts angama-30 ama-watts angama-40, kuthiwa kwixesha elizayo elisondeleyo, kunokubakho izikhombisi ezithile zezinto zamandla. (4) Kukho iintlobo ezimbini zeendlela zokuqhuba ngoku: enye ngumthombo wamandla ombane oqhubekayo kwimithombo emininzi yomlambo oqhubekayo, kunye nokubonelela ngomthombo ngamnye okhoyo ngoku kwi-LED nganye ngokwahlukileyo. Ngale ndlela, ukudibanisa kuguquguqukayo, ukungaphumeleli kwe-LED yonke indlela, akuchaphazeli umsebenzi wezinye ii-LED, kodwa iindleko ziya kuba phezulu. Omnye unikezelo lwamandla lwangoku ngokuthe rhoqo, olukwanjalo “UZhongke Huibao “Indlela yokuqhuba eyamkelweyo, i-LED ixhunyiwe okanye ihambelana. Inzuzo yayo kukuba iindleko ziphantsi, kodwa ukuguquguquka kubi, kwaye kuyimfuneko ukucombulula ingxaki yokungaphumeleli okuthile kwe-LED, okungachaphazeli ukusebenza kweminye imisebenzi ye-LED. Ezi ndlela zimbini zihlala ixesha elide. I-Multi -Lu Hengliu imveliso yeendlela zokunikezelwa kwamandla ziya kuba ngcono ngokweendleko kunye nokusebenza. Mhlawumbi lukhokelo oluphambili kwixesha elizayo. (5) Ukukwazi ukukhusela ukukhuselwa kwe-LED yee-LEDs kumbi kakhulu, ngakumbi amandla ombane ochasene ne-reverse. Ukomeleza ukhuseleko kule ndawo nako kubalulekile. Ezinye izibane ze-LED zifakwe ngaphandle, njengezibane zesitrato ze-LED. Ngenxa yokuvulwa komthwalo wegridi yamandla kunye nokungeniswa kombane, inkqubo yegridi iya kuhlasela amaza ahlukeneyo, kwaye amanye amaza aya kubangela umonakalo we-LED. Ngoko uhlalutyo “UZhongke Huibao “Amandla omqhubi kufuneka aswele kukhuseleko lokunyuka kwamaza. Ngokuphathelele ukutshintshwa rhoqo kwamandla kunye nezibane, umbane we-LED drive kufuneka ube namandla okucinezela ukunyuka kunye nokukhusela amandla e-LED ukuba angonakali. (6) Ukongeza kumsebenzi oqhelekileyo wokukhusela, amandla okusebenza okukhusela angcono ukongeza ubushushu be-LED impendulo engalunganga kwisiphumo esiqhubekayo sangoku ukukhusela ubushushu be-LED ukuba bube phezulu kakhulu;. 3. Ulwahlulo ngokwendlela yokuqhuba (1) Imveliso yangoku yesekethe yedrive eqhubekayo yangoku, ngelixa i-voltage yeDC itshintsha ngaphakathi kuluhlu oluthile kunye nobukhulu bokumelana nomthwalo, ixabiso lokumelana nomthwalo lincinci, imveliso I-voltage yi-Ukuba iphantsi, ixabiso elikhulu lokumelana nomthwalo, liphezulu i-voltage yemveliso; isiphaluka esihlala sikhona ayisoyiki umthwalo wesiphaluka esifutshane, kodwa umthwalo unqatshelwe ngokungqongqo; isekethe yokuqhuba i-Hengliu ilungile ngakumbi, kodwa ixabiso liphezulu; nikela ingqalelo kuyo; nikela ingqalelo Ukunyamezela okukhulu kunye nexabiso lombane elisetyenzisiweyo, linciphisa inani le-LEDs. (2) Emva kokuba iiparameters ezahlukeneyo kwisekethe yokuzinzisa zichongiwe, i-voltage ye-output igxininiswe, kwaye isiphumo sangoku sitshintsha ngokunyuka kunye nokuncipha komthwalo; Intambo emfutshane; ukuqhuba i-LED ukuqhuba i-voltage-driven circuit, umtya ngamnye kufuneka udibanise ukuchasana okufanelekileyo ukwenza umtya ngamnye we-LED ukubonisa ukukhanya okuphakathi; ukukhanya kuya kuchaphazeleka lutshintsho lombane ukusuka ekulungisweni. 4. Izinto eziluncedo kunye nezingeloncedo zombane oguquguqukayo jikelele kunye nendlela yokulandela indlela zifaniswa nomgangatho oqhubekayo. Nangona zininzi izinto ezingeloncedo kunye neendleko eziphezulu, iindleko ziphezulu. Kodwa inokukhusela ngokwenene ubomi be-LED kwaye yandise i-LED, ngoko ke ukuhamba rhoqo kwendlela yindlela ezayo. 5. Ukunqongophala kobonelelo lwamandla ombane we-LED oqhutywa ngumbane akwanelanga okwangoku: 1. Iingcali zeenkampani ezivelisa ukukhanya kwe-LED kunye neemveliso ezinxulumene nazo azikwazi ngokwaneleyo malunga nokunikezelwa kwamandla okutshintsha. Kwaye ukungathatheli ngqalelo ukuhambelana kwe-electromagnetic ngokwaneleyo, kusekho iingozi ezifihlakeleyo; 2. Uninzi lwabavelisi bombane be-LED baguqulwa ukusuka kunikezelo oluqhelekileyo lombane ukwenza unikezelo lombane lwe-LED. Iimpawu kunye nokuqonda kwe-LED akwanele; Kukho phantse akukho migangatho, uninzi lwawo umgangatho wokubhekisela kumbane wokutshintsha kunye nokulungiswa kombane; Uninzi lwamandla ombane we-LED alufani, ngoko ke uninzi lwesixa luncinci. Ukuba umthamo wokuthenga uncinci, ixabiso liphezulu, kwaye umthengisi wecandelo akabambisani kakhulu; 4. Ukuzinza kombane we-LED: igalelo lombane obanzi, ubushushu obuphezulu kunye nomsebenzi ophantsi wobushushu, ngaphezulu kobushushu, ukukhuselwa kombane ogqithisileyo kunye neminye imiba ayikazisombululi nganye nganye. Eyokuqala yimpilo yonke yesiphaluka sokuqhuba, ngokukodwa izixhobo eziphambili ezifana: ubomi be-capacitors kwiqondo lokushisa eliphezulu buchaphazela ngqo ubomi bokunikezelwa kwamandla; ukuba i-LED drive kufuneka icele umngeni kwi-conversion esebenzayo, ngakumbi xa uqhuba ii-LEDs zamandla aphezulu, kuba ngenxa yokuba iqhutywa yi-high-power LED, ngenxa yokuba iqhutywa yi-high-power LED, kuba ngenxa yokuba umqhubi we-high-power LED yomqhubi we-LED ephezulu-amandla, ngenxa yokuba umqhubi we-LED ephezulu-amandla, ngenxa yokuba umqhubi we-LED ephezulu-amandla, ngenxa yokuba umqhubi we-LED ephezulu-amandla, kuba ngenxa yokuba umqhubi ophezulu-amandla I-LED, ngenxa yokuba i-LED ephezulu yamandla omqhubi, kuba ngenxa yokuba i-LED ephezulu yomqhubi yomqhubi, ngenxa yokuba i-LED ephezulu yomqhubi womqhubi, ngenxa yokuba i-LED ephezulu yomqhubi, kuba ngenxa yokuba umqhubi we-high-power LED kungenxa yokuba yinyani ngakumbi, kuba kunjalo ngakumbi. Onke amandla angekho ekukhanyeni asetyenziswa njengokutshatyalaliswa kobushushu, kwaye ukuguqulwa kwamandla okusebenza kakuhle kuphantsi kakhulu, okuchaphazela ukusebenza kweziphumo zokulondoloza amandla e-LED. Okwangoku, kwizicelo ezinamandla amancinci (1-5W), umlinganiselo weendleko ze-Hengliu zokuqhuba umbane usondele kwi-1/3, ekufutshane neendleko zemithombo yokukhanya, echaphazela ukunyuswa kweemarike kwinqanaba elithile. .