Njira zisanu za Dimming za Kuwala kwa LED

Kwa kuwala, dimming ndi yofunika kwambiri.Dimming sikungangopanga mpweya wabwino, komanso kuonjezera magwiritsidwe ntchito a magetsi. Komanso, chifukwa cha kuwala kwa LED, kuwala kumakhala kosavuta kuzindikira kusiyana ndi nyali zina za fulorosenti, nyali zopulumutsa mphamvu, nyali zapamwamba za sodium, ndi zina zotero. Ndikoyeneranso kuwonjezera ntchito za dimming ku mitundu yosiyanasiyana ya nyali za LED.Kodi nyali ili ndi njira zanji zothimitsira?

1.Leading edge phase cut control dimming (FPC), yomwe imadziwikanso kuti SCR dimming

FCP ndi kugwiritsa ntchito mawaya controllable, kuyambira AC wachibale udindo 0, athandizira voteji kuwaza, mpaka mawaya controllable chikugwirizana, palibe athandizira voteji.

Mfundoyi ndikusintha kagawo kamene kalikonse ka theka la mafunde osinthasintha kuti asinthe mawonekedwe a sinusoidal waveform, potero amasintha mtengo wosinthika wamakono, kuti akwaniritse cholinga cha dimming.

Ubwino:

mawaya osavuta, otsika mtengo, kulondola kwambiri kosintha, kuchita bwino kwambiri, kukula kochepa, kulemera kopepuka, komanso kuwongolera kosavuta kwakutali.Imalamulira msika, ndipo zopangidwa ndi opanga ambiri ndi mtundu uwu wa dimmer.

Zoyipa:

kusagwira bwino ntchito kwa dimming, zomwe nthawi zambiri zimabweretsa kuchepa kwa dimming range, ndipo zidzapangitsa kuti katundu wocheperako apitirire mphamvu yoyesedwa ya nyali imodzi kapena zochepa za nyali zounikira za LED, kusinthasintha kochepa komanso kugwirizana kochepa.

2.trailing edge cut (RPC) MOS chubu dimming

Ma dimmer a Trailing-edge phase-cut control opangidwa ndi field-effect transistor (FET) kapena insulated-gate bipolar transistor (IGBT) zipangizo.Ma dimmers odulira m'mphepete nthawi zambiri amagwiritsa ntchito ma MOSFET ngati zida zosinthira, motero amatchedwanso ma dimmer a MOSFET, omwe amadziwika kuti "MOS machubu".MOSFET ndi chosinthira choyendetsedwa bwino, chomwe chimatha kuyendetsedwa kuti chiyatse kapena kuzimitsidwa, kotero palibe chodabwitsa kuti dimmer ya thyristor singazimitsidwe kwathunthu.

Kuphatikiza apo, gawo la dimming la MOSFET ndilabwino kwambiri pakuchepetsa mphamvu ya capacitive kuposa thyristor, koma chifukwa cha kukwera mtengo komanso gawo losavuta la dimming, sikophweka kukhala okhazikika, kotero kuti njira ya MOS chubu dimming sinapangidwe. , ndipo SCR Dimmers akadali ndi gawo lalikulu pamsika wa dimming system.

3.0-10V DC

0-10V dimming imatchedwanso 0-10V chizindikiro dimming, yomwe ndi njira ya analogi.Kusiyana kwake ndi FPC ndikuti pali njira ziwiri zolumikizirana za 0-10V (+10V ndi -10V) pamagetsi a 0-10V.Imayang'anira kutulutsa kwamagetsi pakusintha mphamvu ya 0-10V.Dimming imatheka.Imawala kwambiri ikakhala 10V, ndipo imazima ikakhala 0V.Ndipo 1-10V ndi dimmer yokhayo ndi 1-10V, pamene kukana kwa dimmer kumasinthidwa kukhala osachepera 1V, kutulutsa panopa ndi 10%, ngati kutulutsa panopa ndi 100% pa 10V, kuwala kudzakhalanso 100%.Ndikoyenera kuzindikira ndipo chinthu chabwino kwambiri chosiyanitsa ndi chakuti 1-10V ilibe ntchito yosinthira, ndipo nyaliyo singasinthidwe kumtunda wotsika kwambiri, pamene 0-10V ili ndi ntchito yosinthira.

Ubwino:

zabwino dimming zotsatira, mkulu ngakhale, mkulu mwatsatanetsatane, mkulu mtengo ntchito

Zoyipa:

waya wovuta (wiring ikufunika kuwonjezera mizere yazizindikiro)

4. DALI (Digital Addressable Lighting Interface)

Muyezo wa DALI watanthauzira maukonde a DALI, kuphatikiza mayunitsi opitilira 64 (okhala ndi ma adilesi odziyimira pawokha), magulu 16 ndi zithunzi 16.Magawo osiyanasiyana owunikira pa basi ya DALI amatha kugawidwa m'magulu kuti athe kuzindikira kuwongolera ndi kuyang'anira zochitika zosiyanasiyana.M'malo mwake, mawonekedwe amtundu wa DALI amatha kuwongolera nyali za 40-50, zomwe zitha kugawidwa m'magulu 16, ndikutha kukonza zowongolera / mawonekedwe mofananira.

Ubwino:

Dimming yolondola, nyali imodzi ndi chiwongolero chimodzi, kulankhulana kwa njira ziwiri, yabwino pafunso lanthawi yake komanso kumvetsetsa kwa zida ndi chidziwitso.Mphamvu zotsutsana ndi zosokoneza Pali ndondomeko ndi malamulo apadera, omwe amapititsa patsogolo mgwirizano wa mankhwala pakati pa mitundu yosiyanasiyana, ndipo chipangizo chilichonse cha DALI chili ndi code ya adiresi, yomwe imatha kukwaniritsa kulamulira kamodzi kokha.

Zoyipa:

mtengo wokwera komanso kukonza zovuta

5. DMX512 (kapena DMX)

DMX modulator ndiye chidule cha Digital Multiple X, kutanthauza kufala kwa digito.Dzina lake lovomerezeka ndi DMX512-A, ndipo mawonekedwe amodzi amatha kulumikiza mpaka mayendedwe a 512, kotero titha kudziwa kuti chipangizochi ndi chida cholumikizira digito chokhala ndi ma dimming 512.Ndi chipangizo chophatikizika chozungulira chomwe chimalekanitsa ma siginecha owongolera monga kuwala, kusiyanitsa, ndi chromaticity, ndikuwasintha padera.Posintha potentiometer ya digito, mtengo wamtundu wa analogi umasinthidwa kuti ulamulire kuwala ndi mtundu wa chizindikiro cha kanema.Imagawanitsa mulingo wa kuwala m'magulu 256 kuchokera ku 0 mpaka 100%.Makina owongolera amatha kuzindikira R, G, B, mitundu 256 ya imvi, ndikuzindikira mtundu wonse.

Pazinthu zambiri zamainjiniya, zimangofunika kukhazikitsa wowongolera pang'ono mubokosi logawa padenga, konzekerani pulogalamu yowongolera kuyatsa, kuisunga mu SD khadi, ndikuyiyika m'gulu laling'ono lowongolera padenga. kuzindikira dongosolo lounikira.Dimming control.

Ubwino:

Kuthima kwenikweni, kusintha kolemera

Zoyipa:

Mawaya ovuta komanso kulemba ma adilesi, kukonza zolakwika

Timakonda kwambiri nyali zozimitsa, ngati mukufuna kudziwa zambiri za magetsi ndi zowunikira, kapena gulani zowunikira zomwe zili muvidiyoyi, chondeLumikizanani nafe.

Nthawi yotumiza: Nov-30-2022