isebenza kanjani idrayivu ye-LED efinyezekayo?

I-dimmable driver iyithuluzi elisetshenziselwa ukushintsha ukukhanya noma amandla okukhanyisa ama-diode akhipha ukukhanya (i-LED). Ilungisa amandla kagesi anikezwa ama-LED, okuvumela amakhasimende ukuthi enze ngokwezifiso ukukhanya kokukhanya ngendlela athanda ngayo. Ama-dimmable driver avame ukusetshenziselwa ukukhiqiza amandla okukhanya ahlukahlukene kanye nezimo zengqondo emakhaya, emahhovisi, nakwezinye izindawo zangaphakathi kanyeukukhanyisa kwangaphandleizinhlelo zokusebenza.

Amashayeli e-LED afinyezekayo avame ukusebenzisa i-Pulse Width Modulation (PWM) noma i-Analog Dimming. Nasi isifinyezo esifushane sendlela esebenza ngayo indlela ngayinye:

I-PWM: Kule ndlela, umshayeli we-LED ushintsha ngokushesha amandla e-LED ngokukhanya okuphezulu kakhulu. I-microprocessor noma i-digital circuitry ilawula ukushintsha. Ukuze kufinyelelwe ezingeni lokukhanya elifanele, umjikelezo womsebenzi, obonisa isilinganiso sesikhathi i-LED evuliwe ngaso uma iqhathaniswa ne-off, uyashintshwa. Umjikelezo womsebenzi ophezulu ukhiqiza ukukhanya okwengeziwe, kanti umjikelezo womsebenzi ophansi unciphisa ukukhanya. Imvamisa yokushintsha ishesha kakhulu kangangokuthi iso lomuntu libona ukukhanya okuqhubekayo naphezu kokuthi i-LED ivuliwe futhi ivaliwe njalo.

Le ndlela, evame ukusetshenziswa ezinhlelweni zokufiphaza kwedijithali, inikeza ukulawula okuqondile kokukhishwa kokukhanya.

Ukufiphaza kwe-Analog: Ukuze kushintshwe ukukhanya, inani lamandla kagesi ageleza kuma-LED liyalungiswa. Lokhu kufezwa ngokulungisa i-voltage esetshenziswa kumshayeli noma ngokulawula amandla kagesi nge-potentiometer. Ukufiphaza kwe-analog kukhiqiza umphumela wokufiphaza obushelelezi kodwa kunobubanzi bokufiphaza obuphansi kune-PWM. Kuvame kakhulu ezinhlelweni zokufiphaza ezindala kanye nokulungiswa kabusha lapho ukuhambisana kokufiphaza kuyinkinga.

Zombili lezi zindlela zingalawulwa yizindlela ezahlukahlukene zokufiphaza, okuhlanganisa i-0-10V, i-DALI, i-DMX, kanye nezinketho ezingenantambo njenge-Zigbee noma i-Wi-Fi. Lezi zindlela zokufiphaza zixhumana nomshayeli ukuze zithumele isignali yokulawula elungisa ukuqina kokufiphaza ngokuphendula kokufakwa komsebenzisi.

Kubalulekile ukukhumbula ukuthi abashayeli be-LED abafiphazekayo kumele bahambisane nesistimu yokufiphaza esetshenziswayo, futhi ukuhambisana komshayeli kanye ne-dimmer kumele kuqinisekiswe ukuze kusebenze kahle.

Xhumana nathifuthi singabelana ngolwazi olwengeziwe mayelana nezibani ze-LED strip.