Ma LED amadziwika chifukwa chogwiritsa ntchito mphamvu zochepa komanso kuwala kwambiri.Kuwala ndi kugwiritsa ntchito mphamvu ndizoposa 60% zosiyana ndi mababu amtundu wa tungsten.Koma si mababu onse omwe amatha kuzimitsidwa, ndipo mtengo wa mababu otayika udzakhala wokwera mtengo kwambiri, muyenera kufufuza zosowa zanu musanasankhe magetsi anu a LED.Izi ndizofunikira makamaka mukasintha kuyatsa kwakale ndi ukadaulo wamakono wa LED kwa nthawi yoyamba ndikuyembekeza kuti kuzimiririka.
Kodi mababu anga a Edison amazimitsa?
Nyali yozimitsira ndi nyali yowunikira yomwe imatha kusintha kuwala kwa kuwala molingana ndi zomwe kasitomala amafuna, potero zimakhudza kuwala kwa kuwala kwamkati ndikutulutsa mpweya wosiyanasiyana wamkati.
Ngati mwagula chowonjezera cha LED kapena babu, fufuzani kuti muwonetsetse kuti zoyikapo zimanena kuti ndizozimitsa.Izi ziyenera kunenedwa mu kufotokozera kapena ukadaulo wa kuwala.Mukamagwiritsa ntchito nyali yosazimitsidwa ya LED pa dimmer mumayamba kunjenjemera ndikuwononga babu, ndikuchepetsa moyo wake.Chizindikiro chofanana ndi chomwe chili pansipa nthawi zina chimagwiritsidwa ntchito kusonyeza kuti kuwala sikungatheke, mwatsoka palibe chizindikiro chapadziko lonse lapansi.
Nthawi zambiri, ngati babu ikhoza kuzimitsidwa imatha kuwoneka pamapaketi a babu, ndipo mababu ozimitsa amathanso kukhala okwera mtengo kuposa mababu osazimitsidwa.Mababu ocheperako amatha kusintha kuwala kwa kuwala molingana ndi zomwe kasitomala amafuna, potero zimakhudza kuwala kwa kuwala kwamkati ndikutulutsa mpweya wosiyanasiyana wamkati, kupulumutsa mphamvu ndikuchepetsa kutulutsa mpweya.Ogula ochulukirachulukira amakonda kugula mababu ozizimitsa.
LED Edison bulb dimming mfundo:
Monga gwero lanthawi zonse, ma LED amatha kuzimiririka.Zomwe zikuyenda mumkanda wa nyali ya LED zimatsimikizira kutuluka kwa kuwala ”.Kuwala kwawo kungasinthidwe poyang'anira mphamvu yamagetsi ya semiconductor zinthu zosanjikiza zomwe zimaphatikizidwa ndi gawo lapansi.Ma LED sali ngati magwero owunikira achikhalidwe, ndipo dimming siyimakhudza Kuchita bwino komanso moyo wonse wa ma LED.M'malo mwake, dimming imatha kuchepetsa kutentha kwawo, motero kumatalikitsa moyo wa ma LED.Chida chilichonse cha LED, ngati chiyenera kupangidwa kukhala gwero lowala kapena nyali ya LED, chimafuna dalaivala kuti akwaniritse dimming.Chifukwa ma LED ali Ndi magetsi otsika kwambiri a DC, ndipo LED imafunikira dalaivala wamagetsi kuti atembenuzire AC kuti ikhale yogwiritsidwa ntchito komanso yosinthika ya DC panopa.Madalaivalawa amagawidwa m'njira zitatu za dimming.
Mu mawonekedwe a pulse wide modulation (PWM), magetsi amakono kudzera pa LED amayatsidwa ndikuzimitsidwa pafupipafupi kwambiri, "kawirikawiri maulendo masauzande pa sekondi iliyonse", ndipo yapano kudzera pa LED ndi yofanana ndi mtengo wanthawi zonse wapano. kusintha kwa LED kuzungulira."Pochepetsa mphamvu yamagetsi ya LED, mphamvu yamagetsi yamakono kapena yogwira ntchito imatha kuchepetsedwa, motero kuchepetsa kuwala kwa LED.Mofanana ndi kuwala kwachikhalidwe, ma LED amathanso kuzimitsidwa ndi kuchepetsa nthawi zonse (CCR), kapena dimming ya analogi.CCR imasunga gwero la kuwala Pali pompopompo mosalekeza, koma dimming imatheka pochepetsa kukula kwa magetsi."Kuwala kwamagetsi kumayenderana ndi zomwe zilipo kudzera pa chipangizo cha LED,"
Onse PWM ndi CCR ali ndi ubwino ndi kuipa.PWM imagwiritsidwa ntchito kwambiri ndipo ili ndi mawonekedwe okulirapo.Chifukwa dimming ya PWM imagwiritsa ntchito kuyatsa ndikuzimitsa mwachangu, pamafunika zida zoyendetsa zamagetsi zovuta komanso zodula kuti zipangitse kugunda kwanthawi yayitali kokwanira kuti maso amunthu asawazindikire.kuthwanima.Njira ya CCR dimming ndiyothandiza komanso yosavuta, chifukwa zida zoyendetsera galimoto zomwe zimafunikira ndizosavuta komanso zotsika mtengo.Mosiyana ndi PWM, CCR sipanga ma elekitiromaginetiki kusokoneza EMI chifukwa cha kusintha pafupipafupi.Komabe, CCR siyoyenera kugwiritsa ntchito pomwe kufunikira kwa dimming ndi kochepera 10%."Pa mafunde otsika kwambiri, ma LED sanagwire ntchito bwino ndipo kuwalako kunali kosakhazikika.
Magetsi owongolera a Silicon a LED akhala akugwiritsidwa ntchito pozimitsa nyali za incandescent ndi nyali zopulumutsa mphamvu kale, ndipo ndi njira yomwe imagwiritsidwa ntchito kwambiri pakuwunikira kwa LED.Silicon controller rectifier ndi mtundu wamdima wakuthupi.Mfundo yake yogwirira ntchito ndikupanga mawonekedwe amphamvu amagetsi otulutsa ma waveform pambuyo poti ma waveform amagetsi olowera adulidwa ndi ngodya ya conduction.Kugwiritsa ntchito mfundo ya tangential kumatha kuchepetsa mtengo wamagetsi otulutsa, potero kuchepetsa mphamvu ya katundu wamba (resistive load).Ma silicon controlled rectifier dimmers ali ndi maubwino owongolera kwambiri, kuchita bwino kwambiri, kukula kochepa, kulemera kopepuka, komanso kuwongolera kosavuta kwakutali.Kuwala kosinthidwa kumakhala kofewa komanso kokhazikika, ndipo sipadzakhala zochitika za stroboscopic.lamulira msika.Ubwino wa Silicon controlled rectifier dimming ndikuchita bwino kwambiri, magwiridwe antchito okhazikika komanso mtengo wotsika wa dimming.
Kuchepa kwa magawo atatu kwazinthu zathu kumatengera magetsi owongolera a silicon.
Zochitika zogwiritsa ntchito mababu ocheperako:
Mababu oyaka ocheperako amagwiritsidwa ntchito m'malo osiyanasiyana, monga mahotela, malo ovina, malo, malo owonetserako ndi zochitika zina zomwe zimafuna kuunikira, makamaka posintha kuchuluka kwa gwero la kuwala kuti asinthe kuwala kwa kuwala.Tsopano popeza mlengalenga ukuyamba kutentha, nkhani ya momwe angachepetsere mphamvu zamagetsi pakuwunikira nayonso yayandikira.Mwamwayi, kutuluka kwa magetsi a LED kumapulumutsa mphamvu zambiri.Zingakhale bwino ngati malamulo angagwiritsidwe ntchito kuti apulumutse mphamvu bwino.Pakuti dimming mababu a LED, monga nyali kunyumba khoma, maofesi, masitolo, masukulu, mafakitale ndi nthawi zina akhoza kusintha malinga ndi kuunikira chofunika, ndi zotsatira zopulumutsa mphamvu angapezeke.Ngati nthawizi zisinthidwa ndi mababu a LED osinthika, zimapulumutsa mphamvu zambiri.
Kuunikira kocheperako kumakupatsani mwayi woti mufanane ndi kuunikira komwe kumakuzungulirani ndi zochita zanu.Mungafune kuwala kowala mukamagwira ntchito pa cheke koma kuwala kocheperako mukamadya madzulo.Dimming yagwiritsidwanso ntchito kwambiri mkati
malo azamalonda ndi mafakitale.Kuwonjezera kuyatsa kocheperako kumakupatsani mwayi wosinthika kuofesi yanu ndikuwunikira kuwunikira koyenera pazokonda kapena zosowa za antchito anu.Kaya mukukumana ndi alendo, kuwonera TV, kumvetsera nyimbo, ndi banja lanu, kapena kuganiza nokha, mungathe kusintha kuwala kwa magetsi osiyanasiyana kuti mupange malo omasuka, abata, ogwirizana, ndi ofunda, ndi zochitika zakuya za moyo.Kuwala kofewa kumatha kubweretsa chisangalalo, kuwala kochepa komanso mdima kungathandize kuganiza, kuwala kowala kumapangitsa kuti mlengalenga ukhale wofunda.Zosowa zonse zovuta zimatha kukumana ndi ntchito yosavuta kwambiri, ndipo zimangofunika kuyendetsedwa ndi masiwichi wamba kuti musinthe kuwala ndi kuwala kwakuda kwamadera osiyanasiyana.
Nthawi yotumiza: Jan-13-2023