Pamene kugwiritsa ntchito zowonetsera zowonetsera za LED kukuchulukirachulukira, magawo amagetsi a zowonetsera za LED akuchulukirachulukira ndikukhudzidwa ndi ogula. Aliyense amadziwa kuti zowonetsera zowonetsera za LED zimapangidwa ndi ma module a LED imodzi ndi imodzi, ndipo kumbuyo kwa chinsalu kumalumikizidwa ndiMagetsi a LED, ndiyeno chingwe cha mphamvu ndi mzere wa chizindikiro zimagwirizanitsidwa.
Ndiye mungawerengere bwanji kuchuluka kwa magetsi owonetsera ma LED?
Ma module a skrini a LED amakonzedwa ndikupangidwa pophatikiza zida zopangira monga mikanda ya nyali ya LED, ma board ozungulira a PCB, ma IC, ndi zida. Mfundo yogwira ntchito ya ma module owonetsera ma LED ndikuti IC yamakono nthawi zonse imayendetsa chipangizo chotulutsa kuwala mu mikanda ya nyali ya LED kuti iwonetse mitundu.
Pankhani ya mtundu wowonetsera, ma module owonetsera ma LED amagawidwa m'mitundu itatu: mtundu umodzi, mitundu iwiri, ndi mtundu wonse. Pankhani yamitundu yogwiritsira ntchito, ma module a LED amagawidwa kukhala ma module amkati ndi ma module akunja.
Nthawi zambiri, ma module amtundu wamtundu wamtundu wamtundu wonse ndi wamkulu, ma module amtundu umodzi ndi mitundu iwiri ya LED ndi ochepa, ma module akunja a LED ndi akulu, ndipo ma module a LED amkati ndi ochepa. Komabe, fakitale ikakonza "choyera" cha gawo la LED, mphamvu yogwira ntchito ya gawo limodzi lowonetsera la LED nthawi zambiri imakhala pansi pa 10A.
Choyamba, tiyenera kuyeza panopo ya module imodzi ya LED.
Titha kugwiritsa ntchito ma multimeter kuti tigwirizane ndi dera kuti tiyese magawo enieni a module ya LED. Lero, titenga gawo la P10-4S lakunja la LED monga chitsanzo chofotokozera momwe mungayesere magawo apano a gawo ndi sitepe.
Gawo 1, konzani zida ndi zinthu
Timakonzekera ma module angapo a P10-4S akunja a LED, ma multimeter (amatha kuyeza DC pano mkati mwa 10A), mawaya angapo, tepi yamagetsi, zomangira waya, khadi yowongolera ma LED, magetsi owonetsera.
Gawo 2, gwirizanitsani bwino
Pakuyesa uku, timagwiritsa ntchito multimeter ngati DC ammeter. Kuchuluka kwa multimeter kuyeza DC panopa ndi 10A. Timagwirizanitsa ma multimeter mu mndandanda kudera la module ya LED.
Kutsata kwapadera kwa wiring ndi:
1. Lumikizani AC 220V kumapeto kwa magetsi a LED (ofanana ndi ntchito ya thiransifoma, kusintha 220V AC kukhala 5V DC)
2. Lumikizani waya kuchokera pamtengo wabwino wa kumapeto kwa cholembera ku cholembera cha waya chofiyira (ndondomeko yabwino) ya multimeter.
3. Lumikizani waya wofiira mu dzenje lofiira "10A" pa multimeter
4. Lumikizani cholembera chakuda chakuda ku waya wofiira (mtengo wabwino) wa chingwe cha mphamvu ya module
5. Lumikizani chingwe chamagetsi cha module mu module nthawi zonse
6. Lumikizani waya wakuda (woipa mzati) wa chingwe cha mphamvu ya module kubwerera kumtengo woipa wa mapeto a kutuluka kwa magetsi a LED.
Gawo 3, yesani kuwerenga
Titha kuwona kuti socket yamphamvu yolowera ikalumikizidwa ndipo chiwonetsero chonse cha LED chayatsidwa, mawonekedwe a module imodzi si yayikulu kwambiri. Zosewerera zikasintha, kuwerenga pa multimeter kumasinthanso, makamaka kusunga pa 1-2A.
Timakanikiza batani loyesa pakhadi yowongolera kuti musinthe mawonekedwe a skrini ndikupeza zoyeserera zotsatirazi:
a. Yapano ndi yayikulu kwambiri pomwe "yoyera yonse", pafupifupi 5.8A
b. Pakalipano ndi 3.3A m'mayiko ofiira ndi obiriwira
c. Yapano ndi 2.0A mumtundu wa buluu
d. Mukabwerera ku zomwe zili mu pulogalamu, zomwe zilipo zimasinthasintha pakati pa 1-2A.
Gawo 4, kuwerengera
Tsopano titha kuwerengera kuchuluka kwa ma module a LED omwe magetsi a LED amatha kunyamula potengera zotsatira za muyeso womwe uli pamwambapa. Njira yeniyeni yowerengera ndi: Mphamvu iliyonse ya LED imakhala ndi thiransifoma. Kutengera mwachitsanzo, 200W yomwe timagwiritsa ntchito posinthira magetsi, wopanga amapereka magawo olemetsa ngati "zotulutsa 5V40A" ndi "kutembenuza koyenera 88%".
Mphamvu yogwira ntchito yoperekedwa ndi magetsi osinthira a LED: P=88% x 200W=176W. Malingana ndi ndondomekoyi: P = UI, mphamvu yogwiritsira ntchito mphamvu ya module imodzi ya LED ingapezeke: P1=UI=5V x 5.8A=29W. Kuchokera apa, chiwerengero cha ma modules omwe magetsi amtundu wa LED amatha kunyamula akhoza kuwerengedwa: n=P/P1=176W/29W≈6.069
Kutengera kuwerengera pamwambapa, tikudziwa kuti kuchuluka kwa ma module a LED kunyamula sikupitilira 6, magetsi a LED samadzaza.
Zomwe tidawerengera ndizomwe zili pakali pano pomwe gawo la LED ndi "lonse loyera", ndipo zomwe zikugwira ntchito pakasewerera wamba nthawi zambiri zimakhala 1 / 3-1 / 2 yokha yaposachedwa. Choncho, chiwerengero cha katundu wowerengedwa malinga ndi pazipita panopa ndi otetezeka katundu nambala. Ndiye ndi ma module angati a LED omwe amaphatikizidwa palimodzi kuti apange chinsalu chachikulu chowonetsera cha LED, ndikugawidwa ndi nambala yotetezedwayi, titha kupeza kuchuluka kwa magetsi a LED omwe amagwiritsidwa ntchito pazithunzi za LED.
Kusintha Power Supply Mphamvu Yopanda Madzi Magetsi owonda kwambiri
Wothandizira magetsi a LED, ngati mukufuna zinthu zathu, lemberani!
Nthawi yotumiza: Jul-20-2024