Ibyiza n'ibibi byo kugabanya imipaka no kugabanya imipaka nyuma y'inyuma

Uduce duto tw’amashanyarazi (leading-edge phase-cut dimming) na trailing-edge dimming (trailing-edge phase-cut dimming) ni ikoranabuhanga ribiri rikoresha uburyo bwo kugenzura imiterere y’amashanyarazi bushingiye ku miterere y’amashanyarazi, rikoreshwa cyane cyane mu matara ya LED no mu buryo busanzwe bwo kwerekana amatara. Hasi hari isesengura rigereranya ibyo bibiri.igabanukaikoranabuhanga:

1. Ihame ry'imikorere

Kugabanya uburebure bw'izuba:

Gukata ingufu z'amashanyarazi bibaho mu ntangiriro ya buri gice cy'umuraba w'uruhererekane rwa AC (icyiciro cya 0°). Mu gutinza igihe cyo gukohereza ingufu za thyristors (ni ukuvuga guhindura inguni y'umuyoboro), ingufu z'amashanyarazi zikoreshwa ku mutwaro ziragenzurwa, bityo zigahindura urumuri. Urugero, uko inguni y'umuyoboro igenda yiyongera, ni ko igihe cyo gukohereza ingufu kigenda kigabanuka, kandi urumuri rukagabanuka.

Kugabanuka kw'inkombe z'inzira:

Gukata ingufu z'amashanyarazi biba hafi y'iherezo rya buri gice cy'umuraba w'uruziga rwa AC (icyiciro cya 180°). Mu kuzimya igihe cyo kuyobora MOSFET cyangwa IGBT mbere y'igihe, kugabanuka kw'amashanyarazi kugerwaho. Urugero, uko igihe cyo kuzimya umuriro kigenda kare, niko ingufu z'amashanyarazi zigenda zigabanuka, kandigabanya urumuri.

2. Ibice by'ingenzi

Kugabanya uburebure bw'izuba:

Ikoresha thyristors (SCR / Triac) nk'ibikoresho byo guhinduranya, ari byo bikoresho bigenzurwa na semi-control (bishobora kugenzura gusa uburyo bwo kuyobora, ntibizime).

Kugabanuka kw'inkombe z'inzira:

Ikoresha MOSFET cyangwa IGBT nk'ibikoresho byo guhinduranya, ari byo bikoresho bigenzurwa byuzuye (bishobora kugenzura neza uburyo bwo kuyobora no kuzimya).

3. Kugereranya imikorere

4. Incamake y'Ibyiza n'Ibibi

Inzobere mu gukata uduce duto tw’amadirishya:

Ikoranabuhanga rihendutse, rigezweho, rijyanye n'uburyo bwa thyristor dimming systems (urugero: incandescent gakondo)uduce duto).

Ihindagurika ry'ikirere rigezweho Ibibi:

Bishobora gutera gucikagurika kwa LED, imikorere y'amashanyarazi, kandi ntibizime neza iyo hari imizigo mike.

Ibyiza byo gukata umupira mu buryo bwa Trailing-edge Dimming:

Iragabanya cyane, nta guhindagurika, ishyigikira imizigo itwara ibikoresho (urugero, ama-LED drivers), kandi ishobora kuzimya burundu.

Ihindagurika ry'inyuma ry'inyuma Ibibi:

Ibiciro biri hejuru, isoko rigabanuka, ahanini rikoreshwa mu kugabanya urumuri rw'amatara rimwe rikoresha ingufu nke.

5. Ingero z'ikoreshwa

Kugabanya uburebure bw'izuba:

Bikwiriye imishinga isanzwe yo kongera gushyira amatara (urugero, gusimbuza amatara ashyushye) n'amatara y'ubucuruzi afite ingufu nyinshi (agomba kuba yujuje ibisabwa byibuze).

Kugabanuka kw'inkombe z'inzira:

Bikwiriye amatara ya LED afite ingufu nke (urugero: amatara yo ku meza, amatara yo mu rugo) hamwe n'ibintu bisaba ubuziranenge bwo hejuru (urugero: inzu ndangamurage, amahoteli).

6. Iterambere ry'Ikoranabuhanga

Ubwinshi bw'amatara bukomeje kuba ikintu gikomeye ku isoko bitewe n'inyungu zabwo ku giciro, ariko ubu bwinshi bw'amatara buri kugenda burushaho kwiyongera mu gukoresha uburyo bworoshye bwo kugabanya amatara. Ariko byombi bigomba kwitondera uburyo umushoferi akoresha amatara, kuko kubivanga bishobora gutuma ubwinshi bw'amatara bunanirwa cyangwa kwangirika kw'igikoresho.

7. Umwanzuro

Uburyo bwo kugabanya urumuri rw’imbere n’uburyo bwo kugabanya urumuri rw’imbere buri kimwe gifite ibyiza n’ibibi byacyo kandi kibereye ikoreshwa mu bihe bitandukanye. Uburyo bwo kugabanya urumuri rw’imbere burahendutse kandi bujyanye n’igihe, bigatuma buba bwiza cyane ku buryo busanzwe bwo kuvugurura urumuri n’uburyo bukoresha ingufu nyinshi. Uburyo bwo kugabanya urumuri rw’imbere butanga uburyo bworoshye bwo kugabanya urumuri kandi budafite ingufu nyinshi kandi bukwiriye ku buryo bukoresha ingufu nke n’izikoresha neza cyane. Uko ikoranabuhanga rigenda ritera imbere, ikoreshwa rya uburyo bwo kugabanya urumuri rw’imbere mu buryo bukoresha ingufu nyinshi rizagenda ryiyongera buhoro buhoro.