Khetha iModyuli yoMthombo wokuKhanya weModyuli yeZakhono zeChip

Ixabiso leemodyuli ze-LED zokukhanya ziphuhliswe kwikamva elikufutshane, kwaye ii-LED ziye zaqatshelwa ngokubanzi njengemithombo yokukhanya eluhlaza kunye nokusingqongileyo. Imithombo yokukhanya ye-LED inobomi obude benkonzo, ukonga amandla kunye nokugcinwa kwamandla, isicelo esilula nesifanelekileyo, kunye neendleko zokusetyenziswa okuphantsi. Ngoko ke. Kwangoko ngo-2008, ukuthunyelwa kwezihlalo zonyaka zokukhanyisa ekhaya emhlabeni bekumalunga neebhiliyoni ezingama-50 zeeyuan. Itekhnoloji yemithombo yokukhanya ye-LED iye yanda ngokukhula, kwaye ukuhamba kokukhanya kwe-tile nganye kuye kwanda ngokukhawuleza, okwenza ukuba kunciphise ixabiso ngonyaka. Imakethi enkulu kunye nemfuno eqhubekayo yokukhula okuzinzileyo kwezibane eziluhlaza ze-LED ziya kuba yintengiso ye-sunami ephezulu kushishino lwesekethe edibeneyo emva kweVCD, iDVD, iiselfowuni, kunye neMP3! Ukusebenza okuphezulu kokonga amandla aphezulu, ubomi obude, kunye nokukhuselwa kokusingqongileyo kwezibane ze-LED zibonwa ngokubanzi. 1. Ukugcinwa kwamandla aphezulu e-LED: umqhubi we-DC, i-ultra-low-low power (i-tube eyodwa 0.03 1W) Ukuguqulwa kwamandla okukhanya kombane kusondele kwi-100, umphumo ofanayo wokukhanyisa ungaphezulu kwe-80% yokulondoloza amandla ngaphezu kwemithombo yokukhanya yendabuko. 2. Ubomi obude be-LED: Umthombo wokukhanya we-LED ubizwa ngokuba kukukhanya kwexesha elide. Imithombo yokukhanya ebandayo eqinileyo, ukupakishwa kwe-epoxy resin, kwaye akukho ndawo ikhululekileyo kumzimba wesibane. Akukho ziphene ezinjengokukhanya kwefilament, ukutshona kobushushu, kunye nokukhanya okukhawulezayo. Ngaphezu kokungaphezulu. 3. I-LED yoKhuseleko lweNdawo yoKhuseleko: I-LED ngumthombo wokukhanya okuluhlaza, kunye neenzuzo zokusingqongileyo zingcono. Akukho mitha ye-ultraviolet kunye ne-infrared kwi-spectrum, iikhalori eziphantsi kunye ne-flash yamahhala, akukho mitha, kunye nenkunkuma inokuphinda isetyenziswe. Akukho ungcoliseko ngaphandle kwe-mercury, imithombo yokukhanya ebandayo, enokuthi ichukunyiswe ngokukhuselekileyo. Yeyomthombo wokukhanya oluhlaza oqhelekileyo. Iimpawu zomsebenzi wemodyuli yomthombo wokukhanya we-LED iphantsi kakhulu kumbane weVF wemithombo yokukhanya ye-LED. Ngokubanzi, yi-2.75 3.8V. Ngoko ke, i-voltage yemveliso ye-LED drive IC yi-VFXN okanye i-VFX1, kwaye i-IF igcina ukuhamba rhoqo kwi-15 1,400ma. Umthombo wokukhanya we-LED osetyenziswa zizibane ze-LED uneentlobo ezimbini: amandla amancinci (IF yi-15 20mA) kunye ne-high-power (IF inkulu kune-200mA). Amandla amancinci e-LED asetyenziswa kakhulu njengezibane zelanga ze-LED, izibane zokuhombisa, kunye nezibane zegrille. I-LED yamandla aphezulu isetyenziselwa ukukhanyisa usapho, izibane, izibane ezisezantsi, izibane zodonga, izibane zesitrato, izibane zetonela, izibane zomsebenzi wemoto, njl. Umthombo wokukhanya we-LED yi-low-voltage kunye nesixhobo esikhulu esiqhutywa ngoku. Amandla ayo akhanyayo agqitywe ngumbane ohamba nge-LED. Ikhoyo ngoku iya kubangela ukuthotywa kokukhanya kwe-LED, kwaye okwangoku kuncinci kakhulu kuya kuchaphazela amandla akhanyayo e-LED. Ngoko ke, umqhubi we-LED kufuneka abonelele ngokuqhubekayo amandla ombane ukuqinisekisa ukhuseleko lwee-LED eziphezulu, kwaye kwangaxeshanye ufezekise ukukhanya okufanelekileyo. Kwintsimi yokukhanyisa kwe-LED, ukuze kuboniswe iimpawu zokulondoloza amandla okukhanya kwe-LED kunye nobomi obude, kubalulekile ukukhetha ngokuchanekileyo umqhubi we-LED IC. Ngaphandle komdlalo olungileyo we-IC womqhubi, izibonelelo zokukhanya kwe-LED azinakubonakala. Umthombo wokukhanya we-LED wemodyuli yokubumba imodyuli yokukhanya ye-LED yokukhanya kwe-LED yokunkcenkceshela iglu imodyuli ye-Hongyan cabin ezintathu-enye ikhabhinethi ye-LED yeemfuno zemodyuli yomthombo wokukhanya ophantsi-i-voltage yokuqhuba kufuneka ihlangatyezwe noluhlu lwegalelo lombane oluqhelekileyo lwetshiphu yokuqhuba, DC 8 I-40V, ukugubungela iimfuno zesicelo esibanzi. Ukukwazi ukumelana noxinzelelo kukhulu kune-45V. Xa igalelo liyi-AC 12V okanye i-24V, i-voltage elula yokulungisa ibhulorho iya kuguquguquka kunye nombane wegridi, ngakumbi xa i-voltage iphezulu, i-voltage ye-DC ephumayo iya kuba phezulu. Ukuba i-IC yokuqhuba ayinalo uluhlu olubanzi lwamandla ombane, iya kuhlala ingene xa i-voltage yegridi yamandla inyuka, ngaloo ndlela itshisa umthombo wokukhanya we-LED. 2. Imveliso yangoku ye-chip ye-drive ifuna ngaphezulu kwe-1.2 1.5A. Njengomthombo wokukhanya kwe-LED wokukhanyisa, umbane okhoyo we-1W amandla okukhanya kwe-LED yi-350mA, kunye nokusebenza okuqhelekileyo komthombo wokukhanya kwe-LED we-3W amandla yi-700mA. Imithombo yokukhanya ye-LED enamandla amakhulu idinga umsinga omkhulu, ngoko umqhubi we-IC okhethwe yi-LED izibane zokukhanyisa kufuneka abe nemveliso eyaneleyo yangoku. Xa uyila iimveliso, umsebenzi we-IC womqhubi kufuneka usetyenziswe ukusebenza kwi-70-90% yeyona ndawo isebenzayo ye-70-90% yemveliso epheleleyo yomthwalo. I-ICs ye-Drive usebenzisa imveliso epheleleyo yomthwalo wangoku ayichithwanga kwindawo encinci yezibane, ezinokukhokelela ngokulula ekudinweni kunye nokungaphumeleli kwangaphambili kwesibane. 3. Imveliso yangoku ye-chip yokuqhuba kufuneka igcinwe rhoqo, ukwenzela ukuba i-LED inokukhanya ngokuzinzileyo ngaphandle kokudanyaza. Ibhetshi efanayo yeetshiphusi zokuqhuba isetyenziswa phantsi kweemeko ezifanayo, kwaye imveliso yayo yangoku kufuneka ihambelane ngokusemandleni, oko kukuthi, i-discreteness kufuneka ibe yincinci, ukuze iqinisekise ukusebenza kunye nocwangco xa ivelisa inani elikhulu lemveliso ezenzekelayo. imigca. Kwitshiphu ethile edityanisiweyo kunye nokudizwa okuthile kwemveliso yangoku, kuyimfuneko ukukhetha ukhetho phambi komzi-mveliso okanye uyibeke kumgca wemveliso, uhlengahlengise ixabiso lokumelana nokuchasana kokusetwa kwangoku kwibhodi yePCB, ukuze izibane ze-LED -ibhodi yokuqhuba yangoku eqhubekayo eveliswa yibhodi ye-PCB Ukukhanya kunye nokukhanya komthombo wokukhanya kuhambelana nokugcina ukuhambelana kwemveliso yokugqibela.