Indlela yokwandisa ngempumelelo ukukhanya kwezibani ze-LED?

I-LED (I-Light Emitting Diode) iwumthombo wokukhanya ovamile onezinzuzo zokusebenza kahle okuphezulu, ukwethembeka nokuphila isikhathi eside. Ezinhlelweni eziningi, ngokuvamile sidinga ukulawula ukukhanya kwama-LED ngokwezidingo. Lesi sihloko sizokwethula izindlela ezijwayelekile zokulawula ukukhanya kwe-LED kanye nezimiso zazo.

1. Lungisa umsinga

Ukulungiswa kwamanje kungenye yezindlela ezilula zokushintsha ukukhanya kwe-LED ngokushintsha yamanje ngayo. I-current enkulu izokwenza i-LED ikhanye, kanti i-current encane izoyenza ingabi mnyama. Le ndlela isebenzela izifunda ezilula ze-LED futhi ingasetshenziswa ngokulungisa umthombo wamanje, isixhasi, noma umshayeli wamanje.

2. I-Pulse width modulation (PWM)

I-Pulse width modulation (PWM) ubuchwepheshe obusetshenziswa kakhulu ekulawuleni ukukhanya kwe-LED. I-PWM ilawula ukukhanya ngokulungisa ububanzi beshayela kanye nemvamisa yama-LED. Umgomo wawo ukushintsha isilinganiso sesikhathi sezinga eliphezulu nezinga eliphansi le-pulse emjikelezweni ngamunye, ngaleyo ndlela kulingisa umphumela wokukhanya okuhlukile. Uma kuqhathaniswa nokulungiswa kwamanje, i-PWM ingafinyelela ukunemba okuphezulu kokulungiswa kokukhanya kanye nokusetshenziswa kwamandla okuphansi.

3. Sebenzisa i-resistor eguquguqukayo

I-resistor eguquguqukayo (efana ne-potentiometer) iyingxenye evamile esetshenziselwa ukulawula ukukhanya kwe-LED. Ngokuxhuma i-resistor eguquguqukayo kumjikelezo we-LED, ukukhanya kungalawulwa ngokushintsha ukugeleza kwamanje ngokulungisa ukumelana kwe-resistor. Ukulungisa ukumelana kwe-resistor kungalungisa ukukhanya kwe-LED ngendlela enembile, kodwa uhla lwayo lokulungiswa lungakhawulwa.

4. Sebenzisa umthombo wamanje ongashintshi

Umjikelezo womthombo wamanje oqhubekayo uyindlela evamile yokushayela i-LED, eshintsha ukukhanya ngokulungisa amandla amanje omthombo wamanje oqhubekayo. Umthombo wamanje ongashintshi unganikeza isimanje esizinzile ukuze kugcinwe ukukhanya okungaguquki kwe-LED. Le ndlela ifanele izinhlelo zokusebenza ezidinga ukulawulwa okunembile kokukhanya kwe-LED futhi ezidinga ukuzinza.

5. Sebenzisa i-chip yokulawula ukukhanya

Amanye ama-chips omshayeli we-LED anomsebenzi wokulawula ukukhanya ongalungisa ukukhanya ngamasignali okulawula angaphandle (njengokufaka kwe-PWM). Lawa ma-chips ahlanganisa amasekhethi okulungisa ukukhanya ukuze afinyelele ukulawula ukukhanya okunembayo. Ukusebenzisa le chip kwenza ukwakheka kwesekethe kube lula futhi kunikeza izinketho zokulawula ezivumelana nezimo.

Ukufingqa, kunezinketho eziningi zokulawula ukukhanya kwe-LED, okuhlanganisa ukulungisa okwamanje, ukuguquguquka kobubanzi be-pulse, ukusebenzisa ama-resistors aguquguqukayo, imithombo yamanje eqhubekayo kanye nama-chips okulawula ukukhanya. Indlela ngayinye inezimo nezimiso zayo ezisebenzayo. Ukukhetha indlela efanele ngokuya ngezidingo ezithile kungafinyelela ukulawulwa kwe-LED okuhlangabezana nezidingo zokukhanya.