Ubwino ndi kuipa kwa kutsogolera m'mphepete mwa dimming ndi trailing edge dimming

Dimming yapang'onopang'ono (kutsogolera-m'mphepete mwa gawo-kudula dimming) ndi kutsika kwapang'onopang'ono (trailing-edge phase-cut dimming) ndi njira ziwiri zomwe zimagwiritsidwa ntchito popanga magetsi, zomwe zimagwiritsidwa ntchito makamaka pakuwunikira kwa LED ndi machitidwe owunikira.dimmermatekinoloje:

1. Mfundo Yogwirira Ntchito

Dimming Yotsogola:

Kudula kwamagetsi kumachitika kumayambiriro kwa theka lililonse la funde la AC (gawo 0 °). Mwa kuchedwetsa kuyambitsa kwa nthawi ya conduction ya thyristors (ie, kukonza ngodya ya conduction), voteji yogwira ntchito pa katunduyo imayendetsedwa, potero kusintha kuwala. Mwachitsanzo, kuchedwa kwakukulu kwa ngodya yoyambira, kumachepetsa nthawi ya conduction, ndi kutsika kwa kuwala.

Trailing-Edge Dimming:

Kudula kwamagetsi kumachitika chakumapeto kwa theka lililonse la mafunde a AC (gawo la 180 °). Mwa kuzimitsa nthawi ya MOSFET kapena IGBTs 'kuyendetsa nthawi kale, dimming imatheka.chepetsa kuwala.

2.Core Components

Dimming Yotsogola:

Amagwiritsa ntchito thyristors (SCR/Triac) ngati zida zosinthira, zomwe ndi zida zoyendetsedwa pang'ono (zimatha kuwongolera ma conduction, osazimitsa mwachangu).

Trailing-Edge Dimming:

Imagwiritsa ntchito ma MOSFET kapena ma IGBT ngati zida zosinthira, zomwe ndi zida zoyendetsedwa bwino (zimatha kuwongolera kuyendetsa ndi kuzimitsa).

3.Kufananiza Kwantchito

4.Chidule cha Zabwino ndi Zoyipa

Ubwino Wotsogola wa Dimming:

Mtengo wotsika, ukadaulo wokhwima, wogwirizana ndi makina omwe alipo a thyristor dimming (mwachitsanzo, incandescent yachikhalidwedimmers).

Zoyipa Zotsogola za Dimming:

Zitha kuyambitsa kuthwanima kwa LED, kusokonezedwa ndi ma elekitiroma, ndipo mwina sizingazimitse ponyamula katundu wochepa.

Trailing-Edge Dimming Ubwino:

Kuwala kosalala, kopanda kuthwanima, kumathandizira kunyamula katundu (monga madalaivala a LED), ndipo kumatha kuzimitsa kwathunthu.

Trailing-Edge Dimming Cons:

Kutsika mtengo, kutsika kwa msika, komwe kumagwiritsidwa ntchito kwambiri pakuwala kwa nyali imodzi.

5.Mawonekedwe a Ntchito

Dimming Yotsogola:

Zoyenera mapulojekiti anthawi zonse owunikiranso (monga kusintha mababu a incandescent) ndi makina owunikira amphamvu kwambiri (ayenera kukwaniritsa zofunikira zochepa).

Trailing-Edge Dimming:

Zoyenera nyali zamphamvu zocheperako za LED (mwachitsanzo, nyali zapadesiki, nyali zapakhomo zanyumba imodzi) ndi zochitika zomwe zimafuna kuwala kwapamwamba (monga malo osungiramo zinthu zakale, mahotela).

6.Mayendedwe a Chitukuko cha Technology

Dimming yotsogola imakhalabe yayikulu pamsika chifukwa cha mtengo wake wamtengo wapatali, koma dimming ya trailing-edge ikukula pang'onopang'ono pamapulogalamu apamwamba kwambiri a dimming.

7.Mapeto

Dimming yotsogola ndi dimming-edge dimming iliyonse ili ndi zabwino ndi zoyipa zake ndipo ndizoyenera zochitika zosiyanasiyana zogwiritsira ntchito. Dimming yotsogola ndiyotsika mtengo komanso yogwirizana, ndikupangitsa kuti ikhale yabwino pazowunikira zachikhalidwe komanso makina amphamvu kwambiri. Dimming ya trailing-edge imapereka kuwala kosalala, kopanda kuthwanima ndipo ndi koyenera mphamvu zocheperako komanso zowona bwino kwambiri. Pamene ukadaulo ukupita patsogolo, kugwiritsa ntchito dimming-m'mphepete mwa trailing-edge m'magawo olondola kwambiri kumawonjezeka pang'onopang'ono.