LED yerekana ibiyobora ibicuruzwa cyane cyane birimo umurongo wo gusikana ibiyobora hamwe na chip ya shoferi, kandi imirima yabo ikoreshwa cyanehanze yamamaza LED,LED yerekana imbere na bisi zihagarara LED yerekana. Urebye muburyo bwo kwerekana, ikubiyemo monochrome LED yerekana, ibara ryibiri rya LED ryerekana hamwe namabara yuzuye LED.
Mubikorwa bya LED yuzuye yerekana amabara, imikorere yumushoferi IC ni kwakira amakuru yerekana (uhereye ku ikarita yakira cyangwa itunganya amashusho hamwe nandi masoko yamakuru) ahuza na protocole, imbere muri PWM nimpinduka zigihe, na ongera usohokane nibimurika. nibindi bifitanye isano na PWM yo kumurika LED. IC periferique IC igizwe na shoferi IC, logic IC na MOS ihindura ikora hamwe kumikorere yo kwerekana iyerekanwa kandi ikagena ingaruka zerekana.
Imashini ya LED irashobora kugabanywamo ibice rusange-bigizwe na chip-idasanzwe.
Chip rusange-intego-chip, chip ubwayo ntabwo yagenewe byumwihariko kuri LED, ariko chip zimwe zimwe (nka serial 2-parallel shift rejisitiri) hamwe nibikorwa bimwe na bimwe bya logique byo kuyobora byerekanwe.
Chip idasanzwe yerekeza kuri chip ya shoferi yagenewe cyane cyane kwerekana LED ukurikije ibiranga urumuri rwa LED. LED ni igikoresho kiranga igikoresho, ni ukuvuga, munsi yikwirakwizwa ryuzuye, umucyo wacyo uhinduka nihinduka ryumuyaga, aho kugirango uhindure voltage hejuru yayo. Kubwibyo, kimwe mubintu byingenzi biranga chip yabugenewe ni ugutanga isoko ihoraho. Inkomoko ihoraho irashobora kwemeza gutwara neza LED no gukuraho guhindagurika kwa LED, nicyo gisabwa kugirango LED yerekanwe kwerekana amashusho meza. Ibice bimwe byihariye-bigamije kandi kongeramo imirimo idasanzwe kubisabwa mu nganda zinyuranye, nka LED ikosa ryerekana, kugenzura inyungu zubu no gukosora ubu.
Ubwihindurize bwabashoferi IC
Mu myaka ya za 90, LED yerekana porogaramu yiganjemo amabara amwe kandi abiri, kandi imashini zikoresha voltage zihoraho. Mu 1997, igihugu cyanjye cyagaragaye chip ya mbere yihariye yo kugenzura disiki 9701 kugirango yerekane LED, yavuye ku cyatsi cyo ku rwego rwa 16 igera ku cyatsi cyo ku rwego rwa 8192, imenya WYSIWYG ya videwo. Ibikurikira, urebye ibiranga LED itanga urumuri, umushoferi uhoraho yabaye ihitamo ryambere ryamabara yuzuye LED yerekana umushoferi, naho umushoferi wa 16-umuyoboro mwinshi wasimbuye umushoferi wa 8. Mu mpera z'imyaka ya za 90, amasosiyete nka Toshiba mu Buyapani, Allegro na Ti muri Amerika yagiye akurikirana imiyoboro 16 ya LED ihoraho. Muri iki gihe, kugirango dukemure ikibazo cya wiring ya PCB yaakantu gato LED yerekana, bamwe mubashoferi IC bakora ibicuruzwa byinjije cyane 48-imiyoboro ya LED ihoraho ya chip.
Ibipimo byerekana umushoferi IC
Mubipimo ngenderwaho byerekana LED yerekana, kugarura igipimo, urwego rwimvi no kwerekana amashusho ni kimwe mubipimo byingenzi. Ibi bisaba guhuza cyane hagati ya LED yerekana umushoferi wa IC imiyoboro, umuvuduko wihuta woguhuza interineti hamwe nigisubizo gihoraho. Mubihe byashize, igipimo cyo kugarura ubuyanja, igipimo cyimyenda nikigereranyo cyo gukoresha byari umubano wubucuruzi. Kugirango umenye neza ko kimwe cyangwa bibiri mubipimo bishobora kuba byiza, birakenewe kwigomwa bikwiye ibipimo bibiri bisigaye. Kubwiyi mpamvu, biragoye kuri LED nyinshi zerekana kugira ibyiza byisi byombi mubikorwa bifatika. Igipimo cyo kugarura ibintu ntigihagije, kandi imirongo yumukara ikunda kugaragara munsi yibikoresho byihuta bya kamera, cyangwa ibara ryinshi ntirihagije, kandi ibara numucyo ntibihuye. Hamwe niterambere ryikoranabuhanga ryabashoramari IC bakora, habaye intambwe mubibazo bitatu bikomeye, kandi ibyo bibazo byakemuwe. Kugeza ubu, ibyinshi muri SRYLED LED yerekana bifite umuvuduko mwinshi hamwe na 3840Hz, kandi nta murongo wumukara uzagaragara mugihe ufotora hamwe nibikoresho bya kamera.
Inzira muri IC
1. Kuzigama ingufu. Kuzigama ingufu nugukurikirana iteka rya LED, kandi nigipimo cyingenzi cyo gusuzuma imikorere yumushoferi IC. Ingufu zo kuzigama umushoferi IC zirimo ahanini ibintu bibiri. Imwe muriyo ni ukugabanya neza voltage ihora ihindagurika, bityo bikagabanya amashanyarazi gakondo 5V kugirango akore munsi ya 3.8V; ikindi ni ukugabanya voltage yimikorere nigikorwa cyumushoferi IC mugutezimbere IC algorithm nigishushanyo. Kugeza ubu, bamwe mu bakora uruganda batangije umushoferi uhoraho wa IC hamwe n’umuvuduko muke wa 0.2V, utezimbere igipimo cyo gukoresha LED hejuru ya 15%. Umuyagankuba w'amashanyarazi uri munsi ya 16% ugereranije nibicuruzwa bisanzwe kugirango ugabanye ubushyuhe, kugirango ingufu za LED yerekanwe zitezimbere cyane.
2. Kwishyira hamwe. Hamwe no kugabanuka byihuse bya pigiseli ya ecran ya LED yerekana, ibikoresho bipakiye bizashyirwa kumwanya umwe byiyongera kuri geometrike, ibyo bikaba byongera cyane ubucucike bwibice byubushoferi bwa module. GufataP1.9 ikibanza gito LED Mugaragaza nkurugero, 15-scan 160 * 90 module isaba 180 ihoraho yumushoferi IC, imiyoboro 45 yumurongo, na 2 138s. Hamwe nibikoresho byinshi, umwanya wiring kuboneka kuri PCB uba wuzuye cyane, byongera ingorane zo gushushanya umuzenguruko. Mugihe kimwe, gutondekanya ibintu byinshi bishobora gutera ibibazo byoroshye nko kugurisha nabi, kandi bikagabanya no kwizerwa kwamasomo. Abakoresha IC ni bake, kandi PCB ifite ahantu hanini cyane. Ibisabwa kuruhande rusaba guhatira umushoferi IC gutangira inzira ya tekinike ihuriweho cyane.
Kugeza ubu, abatwara ibinyabiziga bikuru bitanga isoko rya IC mu nganda bagiye batangiza imiyoboro 48 ihuriweho na LED ihoraho ya shoferi ya IC, ihuza imiyoboro minini ya periferique muri shoferi ya IC wafer, ishobora kugabanya ubukana bwibishushanyo mbonera byubuyobozi bwa PCB. . Irinda kandi ibibazo biterwa nubushobozi bwo gushushanya cyangwa gutandukanya ibishushanyo bya injeniyeri mubakora inganda zitandukanye.
Igihe cyo kohereza: Werurwe-03-2022
