Ngaba ukhe wajonga ukukhanya okuncinci, okukhanyayo kwe-LED kwaye wazibuza ukuba kusebenza njani? Kutheni inokukhanya okungaguqukiyo kwaye ingatshi ngokukhawuleza? Kutheni ezinye ii-LED zikhanya ngakumbi ngelixa ezinye zikhanya ngokukhawuleza? Yonke le mibuzo yehla kuhlobo lomqhubi we-LED osetyenziswayo.
ii-LEDs luhlobo lwetekhnoloji yokukhanyisa esebenzayo, ehlala ixesha elide, kwaye ihlala ixesha elide. Bafuna umqhubi we-LED ukuba asebenze ngokuchanekileyo kunye namandla abo apheleleyo. Esi sithuba siya kungena kwihlabathi labaqhubi be-LED, ngokukodwa Abaqhubi be-LED bangoku kunye ne-Constant Voltage, kwaye ikuncede uqonde ukuba yeyiphi enokuthi ilungele iimfuno zakho zokukhanyisa.
Ukuba unomdla malunga nee-LED okanye uneprojekthi ebandakanya ukukhanya kwe-LED, funda ukuze uqonde ezi zinto zibalulekileyo ngokubanzi.
I. Intshayelelo
Intshayelelo emfutshane kwii-LEDs (iiDiodes eziKhanyayo)
IiDiode eziKhanyayo ezikhuphayo or iiglowubhu zizixhobo zesemiconductor ezikhupha ukukhanya xa umsinga wombane udlula kuzo. Baziwa kakhulu ngokusebenza kwabo kunye nobomi obude, nto leyo ebenza badume kwiinkqubo ezahlukeneyo zokukhanyisa, ukusuka ekukhanyeni ekhaya ukuya kwiimpawu zendlela kunye nezikrini zedijithali.
Inkcazo yesidingo sabaqhubi be-LED
Ngelixa zisebenza kwaye ziguquguquka, ii-LED zisebenza ngokwahlukileyo kwi-incandescent okanye izibane ze-fluorescent. Zifuna iimeko ezithile zangoku kunye ne-voltage ukuze zisebenze ngokufanelekileyo, eziququzelelwa ngumqhubi we-LED.
Ngaphandle komqhubi, i-LED inokutshisa kakhulu kwaye ingazinzi, ikhokelela ekusebenzeni okuncinci, ukukhanya okungalinganiyo, okanye ukudinwa. Ngoko ke, umqhubi we-LED uyinxalenye ebalulekileyo kuyo nayiphi na inkqubo ye-LED.
II. Ukuqonda abaqhubi be-LED
Inkcazo yomqhubi we-LED
An Umqhubi we-LED ngumbane ozimeleyo olawula amandla afunekayo kwi-LED okanye umtya (uluhlu) lwe-LEDs. Iqinisekisa ukuba ii-LEDs zisebenza phantsi kweemeko zazo ezichaziweyo.
Indima kunye nokubaluleka kwabaqhubi be-LED kwiiNkqubo zokuKhanya kwe-LED
Abaqhubi be-LED badlala indima ebalulekileyo kwiinkqubo zokukhanyisa i-LED. Bagcina ibhalansi yangoku kunye ne-voltage, ebalulekileyo ukukhusela ii-LED emonakalweni we-thermal kunye nokuqinisekisa ukuba zisebenza ngokufanelekileyo.
Ngaphandle komqhubi we-LED ofanelekileyo, ii-LED ziqhelene nokuguquguquka kombane, okukhokelela ekukhanyeni okungahambelaniyo, ukutshintsha kombala, ukuqhwanyaza, kunye nomonakalo onokwenzeka. Ngaloo ndlela, umqhubi we-LED olungileyo uyimfuneko kubomi obude kunye nokusebenza kwayo nayiphi na inkqubo yokukhanyisa i-LED.
III. Abaqhubi be-LED bangoku
Ingcaciso yaBaqhubi be-LED abaNgqongileyo
A Umqhubi we-LED wangoku ilawula imveliso yangoku, igcine ihambelana kungakhathaliseki ukuba igalelo lombane okanye utshintsho lomthwalo. Eli nqaku libalulekile ekunikezeni amandla ii-LED kuba zifuna umsinga oqhubekayo ukuze zisebenze ngokuchanekileyo.
Basebenza njani abaqhubi be-LED bangoku
Umqhubi we-Constant Current ulungelelanisa i-voltage kuyo yonke imveliso ukuze agcine ukuhamba ngokuqhubekayo. Ukuba ukuchasana kuyo yonke i-LED kuyanda ngenxa yokutshintsha kweqondo lokushisa okanye ezinye izinto, umqhubi unciphisa i-voltage ephumayo ukugcina isigxina sangoku.
Ingqikelelo ye-Thermal Runaway kunye nendlela abaQhubela ngayo abaqhubi be-LED abaYithintela ngayo
Ukubaleka kwe-thermal ngumba onokubakho ngee-LEDs. Kwenzeka xa ukunyuka kweqondo lokushisa kukhokelela ekunyuseni kwangoku, okubangela ukuba i-LED ishushu ngakumbi, ekhokelela kumjikelezo owonakalisayo onokuthi ekugqibeleni bonakalise i-LED.
Abaqhubi be-Constant Current banqanda oku ngokugcina i-stable current nangona utshintsho lweqondo lokushisa, ngokufanelekileyo ukunciphisa umngcipheko wokubaleka kwe-thermal.
IiNzuzo zokuSebenzisa abaqhubi be-LED abaNgqongileyo
Abaqhubi bangoku baqinisekisa ukuqaqamba okungaguqukiyo kuzo zonke ii-LED eziqhagamshelwe kuthotho, ziphucula ukufana okubonakalayo ngokubanzi. Zikwasebenza kakuhle ekuthinteleni ukutshiswa kwe-LED okanye ukubaleka kwe-thermal.
Imiqobo enokuthi ibekho okanye imida
Ngaphandle kwezibonelelo zabo, abaqhubi beConstant Current banokuba nemida. Umzekelo, zifuna uthelekiso oluchanekileyo kunye neemfuno zangoku ze-LED kwaye zibiza kakhulu kune-Constant Voltage driver.
IV. Abaqhubi be-LED be-Voltage rhoqo
Ingcaciso ye-Constant Voltage LED Drivers
A Umqhubi we-Voltage LED rhoqo igcina i-voltage esisigxina kungakhathaliseki ukutsalwa komthwalo ngoku. Oku kusetyenziswa rhoqo kwiinkqubo ze-LED esele zixhotyiswe ngokuxhathisa okanye kwibhodi yolawulo lwangoku, njenge Izibane ze-LED strip.
Basebenza njani abaqhubi be-LED be-Voltage rhoqo
Umqhubi weConstant Voltage ugcina amandla ombane afanayo kuyo yonke imveliso yawo, nokuba uthini na umthwalo wangoku. Oku kuluncedo ngakumbi xa unika amandla ii-LED ezininzi eziqhagamshelwe ngokuhambelanayo.
Izibonelelo zokusebenzisa abaqhubi be-LED be-Voltage Constant
Abaqhubi be-Constant Voltage baqhelekile ukuyila kunye nofakelo lweenjineli, ezinokwenza lula inkqubo yokuseta. Banokuthi banciphise iindleko kwizicelo ezinkulu ngenxa yoyilo lwabo oluthe ngqo.
Imiqobo enokuthi ibekho okanye imida
Omnye umda omkhulu wabaqhubi be-Constant Voltage kukuxhomekeka kwabo kumacandelo ongezelelweyo kulawulo lwangoku kwiyunithi nganye ye-LED. Oku kunokwenza inkqubo intsonkothe ngakumbi kwaye ingathembeki kangako ekuhambeni kwexesha.
Imizekelo yezicelo
Izicelo eziqhelekileyo kubaqhubi be-Constant Voltage ziquka izibane ezingaphantsi kwekhabhinethi kunye nezicelo ze-LED flex strip apho ii-LED ezininzi zixhunyiwe ngokufanayo.
V. Uthelekiso phakathi kwe-Constant Current and Constant Voltage LED Drivers
Le theyibhile ilandelayo ibonisa umahluko ophambili phakathi kwabaqhubi be-Constant Current kunye neConstant Voltage LED:
| Ikhoyo ngoku | I-Voltage eqhubekayo | |
| imveliso | Ikhoyo ngoku | I-Voltage eqhubekayo |
| Ithintela i-Thermal Runaway | Ewe | Hayi |
| Ukukhanya okuhambelanayo | Ewe | Kuxhomekeke kuLawulo lwangoku oloNgezelelweyo |
| Sebenzisa Iimeko | Ii-LED zaMandla aphezulu | Imichilo ye-LED, imivalo, njl. |
Ukhetho phakathi kwezi zibini luxhomekeke kwisicelo esithile. Abaqhubi be-Constant Current bahlala bekhethwa kwii-LED eziphezulu zamandla, apho ulawulo lwe-thermal lubalulekile. Kwelinye icala, abaqhubi beConstant Voltage basetyenziselwa iimveliso ze-LED ezinee-LED ezininzi ezidityaniswe kunye, njengezibane zentambo ze-LED, iintambo ze-LED, kunye nemivalo ye-LED.
VI. Ukukhetha i-Eight LED Driver
Izinto ekufuneka ziqwalaselwe xa ukhetha phakathi kwe-LED yangoku kunye ne-Constant Voltage Drivers
Ukukhetha umqhubi we-LED ofanelekileyo kuxhomekeke kwizinto ezahlukeneyo, kubandakanywa i-LED ethile okanye iimfuno zombane we-array, inani kunye nokulungelelaniswa kwee-LEDs kwinkqubo (uchungechunge okanye i-parallel), kunye neemeko zamandla okusingqongileyo.
Iingcebiso zokuKhetha uMqhubi we-LED oLungileyo kwiiNkqubo eziKhethekileyo
Umqhubi we-Constant Voltage uyafuneka ukuba i-LED okanye uluhlu luchaza umbane othile. Nangona kunjalo, ukuba usebenza ngee-LED ezinamandla aphezulu, umqhubi we-Constant Current uya kuba luncedo ukunqanda ukubaleka kwe-thermal kunye nokuqinisekisa ukuqaqamba okungaguqukiyo.
Jonga kwiinkcukacha zomenzi kwaye udibane nengcali yokukhanyisa ukuba ufuna ingcaciso.
VII. Ii-FAQ
VIII. Ukuqukumbela
Abaqhubi be-LED, nokuba yi-Constant Current okanye Constant Voltage, badlala indima ebalulekileyo ekugcineni ukusebenza kunye nobomi obude bee-LED zakho. Ngelixa zombini zinezibonelelo kunye nemida yazo, ukhetho lwakho kufuneka lusekelwe kwiimfuno ezithile zenkqubo yakho ye-LED.
