Kubara umubare woguhindura ibikoresho bisabwa kuri LED yerekana

Mugihe ikoreshwa rya LED yerekana ecran igenda irushaho kwaguka, ibipimo byamashanyarazi ya LED yerekana ecran biragenda bihabwa agaciro kandi bireba abakiriya. Buriwese azi ko ecran ya LED igizwe na modul ya LED umwe umwe, kandi inyuma ya ecran ihujwe naLED amashanyarazi, hanyuma umugozi wamashanyarazi numurongo wibimenyetso birahujwe.

Nigute ushobora kubara umubare wibikoresho byamashanyarazi ya ecran ya LED?

LED yerekana ecran modules itunganywa kandi ikorwa muguhuza ibikoresho bibisi nkamasaro yamatara ya LED, ikibaho cyumuzunguruko wa PCB, IC, nibikoresho. Ihame ryakazi rya LED yerekana ecran modules nuko burigihe burigihe IC itwara chip itanga urumuri mumasaro ya LED kugirango yerekane amabara.

Kubyerekeranye no kwerekana ibara, LED yerekana ecran modules igabanijwemo ubwoko butatu: ibara rimwe, amabara abiri, nibara ryuzuye. Kubireba urwego rusaba, LED modules igabanijwe mubice byo murugo no hanze.

Mubisanzwe nukuvuga, ikigezweho cyamabara yuzuye ya LED ni nini, ikigezweho cyamabara imwe hamwe namabara abiri LED modules ni ntoya, ikigezweho cya moderi yo hanze LED nini nini, naho ikigezweho cya LED yo murugo ni gito. Ariko, mugihe uruganda rurimo gukemura "uburinganire bwera" bwa moderi ya LED, icyerekezo cyakazi cyibisanzwe LED yerekana ecran isanzwe iri munsi ya 10A.

Ubwa mbere, dukeneye gupima ikigezweho cya module imwe ya LED.
Turashobora gukoresha multimeter kugirango duhuze umuzenguruko kugirango tupime ibipimo bigezweho bya LED module. Uyu munsi, tuzafata P10-4S yo hanze LED yerekana module nkurugero rwo gusobanura uburyo bwo gupima module ibipimo byintambwe ku yindi.

Intambwe ya 1, tegura ibikoresho nibintu

Dutegura P10-4S nyinshi zo hanze LED yerekana modules, multimeter (irashobora gupima amashanyarazi ya DC muri 10A), insinga nyinshi, kaseti y'amashanyarazi, ibyuma byerekana insinga, ikarita yo kugenzura LED, LED yerekana amashanyarazi.

Intambwe ya 2, ihuza neza

Muri ubu bushakashatsi bwo gupima, dukoresha multimeter nka DC ammeter. Umubare ntarengwa wa multimeter yo gupima DC ni 10A. Duhuza multimeter mukurikirane kumurongo wa LED module.

Uburyo bwihariye bwo gukoresha insinga ni:

1. Huza AC 220V kumpera yinjiza yumuriro wa LED (bihwanye ninshingano za transformateur, uhindura 220V AC muri 5V DC)
2.
3. Shira insinga itukura mumwobo utukura "10A" kuri multimeter
4. Huza ikaramu yumukara kumurongo wumutuku (pole positif) yumurongo wamashanyarazi
5. Shira amashanyarazi yumurongo wa module mubisanzwe
6.

Intambwe ya 3, bapima gusoma

Turashobora kubona ko mugihe iyinjizamo imbaraga sock yacometse hanyuma LED yose ikerekanwa, ikigezweho cya module imwe ntabwo ari nini cyane. Mugihe ibikinisho byo gukina bihinduka, gusoma kuri multimeter nabyo birahinduka, mubyukuri bikomeza kuri 1-2A.

Dukanda buto yikizamini ku ikarita yo kugenzura kugirango duhindure imiterere ya ecran hanyuma tubone amakuru yubushakashatsi akurikira:
a. Ibiriho nini cyane iyo "byose byera", hafi 5.8A
b. Ibiriho ni 3.3A muri leta zitukura nicyatsi
c. Ibiriho ni 2.0A muburyo bwubururu
d. Iyo usubiye mubintu bisanzwe bya porogaramu, ikigezweho gihinduka hagati ya 1-2A.

Intambwe ya 4, kubara

Ubu turashobora kubara umubare LED modules LED itanga ishobora gutwara hashingiwe kubisubizo byavuzwe haruguru. Uburyo bwihariye bwo kubara ni: Buri LED itanga amashanyarazi ni transformateur. Dufashe urugero dukoresha 200W rwo guhindura amashanyarazi nkurugero, uwabikoze atanga ibipimo byumutwaro nka "ibisohoka 5V40A" na "igipimo cyiza cyo guhindura 88%".

Imbaraga zingirakamaro zitangwa na LED itanga amashanyarazi: P = 88% x 200W = 176W. Ukurikije formula: P = UI, ingufu ntarengwa zo gukoresha module imwe ya LED irashobora kuboneka: P1 = UI = 5V x 5.8A = 29W. Kuva aha, umubare wamasomo imwe LED ihindura amashanyarazi ishobora gutwara irashobora kubarwa: n = P / P1 = 176W / 29W≈6.069

Dufatiye ku mibare yavuzwe haruguru, tuzi ko iyo umubare wa LED modules yatwaye utarenze 6, amashanyarazi ya LED ntabwo aremerewe.

Ibiriho twabaze nigihe kinini cyane iyo LED module "yose yera", kandi ikora mugihe cyo gukina bisanzwe ni 1 / 3-1 / 2 gusa byumuvuduko mwinshi. Kubwibyo, umubare wimitwaro ibarwa ukurikije icyerekezo ntarengwa ni numero yumutwaro utekanye. Noneho ni bangahe LED modules ziteranijwe hamwe kugirango zikore ecran nini ya LED yerekana, hanyuma igabanijwe niyi numero yumutwaro utekanye, dushobora kubona umubare w'amashanyarazi ya LED akoreshwa muri ecran ya LED.

Guhindura Amashanyarazi               Amashanyarazi adatanga amazi                Amashanyarazi adasanzwe

LED itanga amashanyarazi, niba ushishikajwe nibicuruzwa byacu, nyamuneka twandikire！