LED irakoreshwa cyane mugukoresha amatara. Usibye ibyiza byayo bidasanzwe muburyo bwo gucana amatara gakondo, usibye kuzamura imibereho yubuzima, kuzamura imikorere yumucyo no kongera igihe cyumurimo wumuriro wumuriro, LED ikoresha imikorere yayo idasanzwe yo gucana kugirango ihindure ubushyuhe bwamabara nubucyo bwurumuri , kandi igera ku nyungu nini zo kuzigama ingufu.

Gukora nezaItaraIbikoresho biterwa nurumuri rwahujwe na LED itanga amashanyarazi.

Muri rusange,LED itanga urumuriirashobora kugabanywamo ibyiciro bibiri: urumuri rumwe rwa LED diode yumucyo cyangwa urumuri rwa LED diode hamwe nurwanya. Mubisabwa, rimwe na rimwe LED yumucyo yatunganijwe nka module irimo DC-DC ihindura, kandi modules zigoye ntabwo zaganiriweho muriki kiganiro. Niba urumuri rwa LED cyangwa module ari LED itandukanye ubwayo, uburyo busanzwe bwo gucana ni uguhindura amplitude ya LED yinjiza, bityo guhitamo ingufu za LED bigomba kwerekeza kuriyi miterere.

Ibisanzwe LED itameze neza:

Iyo amashanyarazi ya LED hamwe nibisohoka byahinduwe bikoreshwa mugucana amatara ya LED, deadtravel nikibazo gisanzwe. NubwoUmushoferi wa LEDamashanyarazi arashobora gukora neza mugihe ari mumitwaro yuzuye, biragaragara ko gucogora bitoroha mugihe umushoferi wa LED atari mumuzigo wuzuye.

Igisubizo cyibisohoka Pulse Ubugari Bwagutse (Ibisohoka PWM)

Niba amashanyarazi ya LED akoreshwa kumurongo wa LED urumuri rucye munsi yumutwaro wuzuye, ntakibazo cyo gupfa. Impaka zavuzwe haruguru nukuri, ariko ntabwo zifatika. Mubyukuri, urumuri rwa LED rukoreshwa kenshi mubikorwa bitandukanye (kumurika imitako / kumurika / kumurika amatara) aho uburebure budashobora kugereranywa neza. Kubwibyo, igisubizo cyoroshye kandi cyiza cyo gukemura ni uguhitamo neza imbaraga za LED yumushoferi hamwe nibisohoka pulse ubugari bwa PWM dimming imikorere kugirango ugere kubisabwa bya LED yumucyo. Ibisohoka bimurika birashobora kugabanya ihinduka ryumucyo bitewe nuburemere bwikimenyetso cyikimenyetso. Ibipimo byingenzi muguhitamo amashanyarazi yatanzwe ni ugukemura gukemuka hamwe ninshuro zisohoka pulse ubugari bwa modulisiyo PWM. Ubushobozi buke bwo gucana bugomba kuba munsi ya 0.1% kugirango ugere kuri 8bit dimming resolution kugirango uhuze LED yumucyo wumurongo wose. Ibisohoka bya pulse ubugari bwa modulisiyo ya PWM igomba kuba ndende ishoboka, Kugirango wirinde ikibazo cyumucyo uvugwa mumeza (I), ukurikije ibitabo byubushakashatsi bwa tekiniki bijyanye, inshuro zirasabwa kuba byibuze hejuru ya 1.25 kHz kugirango ugabanye guhindagurika kwizimu igaragara mumaso yabantu.