Kodi Dalaivala wa LED Dimmer ndi chiyani?

Popeza ma LED amafuna mphamvu yamagetsi yolunjika komanso mphamvu yamagetsi yochepa kuti agwire ntchito, chowongolera cha LED chiyenera kusinthidwa kuti chiwongolere kuchuluka kwa magetsi omwe amalowa mu LED.
Dalaivala wa LED ndi gawo lamagetsi lomwe limayang'anira magetsi ndi magetsi ochokera ku magetsi kuti ma LED azigwira ntchito bwino komanso mosamala. Dalaivala wa LED amasintha magetsi osinthira (AC) kuchokera ku magetsi akuluakulu kupita ku magetsi olunjika (DC) chifukwa magetsi ambiri amayenda pa magetsi akuluakulu.
LED ikhoza kuchepetsedwa mphamvu posintha dalaivala wa LED, yemwe amayang'anira kulamulira kuchuluka kwa mphamvu yomwe imalowa mu LED. Dalaivala wa LED wopangidwa mwamakonda uyu, nthawi zina amatchedwa dalaivala wa LED dimmer, amasintha kuwala kwa LED.
Ndikofunikira kuganizira momwe dalaivala wa LED dimmer angagwiritsire ntchito mosavuta mukagula imodzi. Dalaivala wa LED dimmer wokhala ndi ma switch awiri (DIP) kutsogolo kumapangitsa kuti ogwiritsa ntchito asinthe mphamvu yotulutsa, zomwe zimasintha kuwala kwa LED.
Kugwirizana kwa chowongolera cha LED dimmer ndi ma Triode for Alternating Current (TRIAC) makoma ndi magetsi ndi chinthu china choyenera kuyang'ana. Izi zikutsimikizira kuti mutha kuwongolera mphamvu yamagetsi yothamanga kwambiri yomwe imalowa mu LED ndipo chowongolera chanu chidzagwira ntchito pa ntchito iliyonse yomwe mukuganizira.

Njira ziwiri kapena makonzedwe amagwiritsidwa ntchito ndi madalaivala a LED dimmer kuti azitha kuwongolera mphamvu yamagetsi yomwe imalowa mu LED: amplitude modulation ndi pulse width modulation.

Cholinga cha pulse width modulation, kapena PWM, ndicho kuchepetsa kuchuluka kwa mphamvu yotsogola yomwe imadutsa mu LED.
Dalaivala nthawi ndi nthawi amayatsa ndi kuzimitsa magetsi ndikuyatsanso kuti azitha kulamulira kuchuluka kwa magetsi omwe amayendetsa magetsi a LED, ngakhale magetsi omwe amalowa mu LED atakhalabe ofanana. Chifukwa cha kusinthana kwakanthawi kochepa kumeneku, kuwalako kumakhala kocheperako ndipo kumazimitsa mwachangu kwambiri kuti maso a munthu asawonekere.

Kuchepetsa kuchuluka kwa magetsi omwe amalowa mu LED kumadziwika kuti amplitude modulation, kapena AM. Kuwala kwa dimmer kumachitika chifukwa chogwiritsa ntchito mphamvu zochepa. Mofananamo, kuchepa kwa magetsi kumapangitsa kutentha kutsika komanso mphamvu ya LED imawonjezeka. Flicker imachotsedwanso ndi njira iyi.
Komabe, kumbukirani kuti kugwiritsa ntchito njira yochepetsera kuwala kumeneku kuli ndi chiopsezo chosintha mtundu wa LED, makamaka pamlingo wotsika.

Kupeza madalaivala otha kuziziritsa a LED kudzakuthandizani kugwiritsa ntchito bwino magetsi anu a LED. Gwiritsani ntchito ufulu wanu wosintha kuchuluka kwa kuwala kwa ma LED anu kuti musunge mphamvu ndikukhala ndi magetsi abwino kwambiri m'nyumba mwanu.
Lumikizanani nafeKodi mukufuna magetsi a LED okhala ndi dimmer/dimmer diver kapena zinthu zina zowonjezera?