Yayin da aikace-aikacen nunin nunin LED ke ƙara yaɗuwa, sigogin lantarki na nunin nunin LED suna ƙara ƙima da damuwa da masu amfani. Kowa ya san cewa allon nunin LED an yi su ne da na'urorin LED daya bayan daya, kuma an haɗa bayan allon zuwa na'urar.LED wutar lantarki, sannan an haɗa igiyar wutar lantarki da layin sigina.
Don haka ta yaya za a lissafta adadin kayan wutar lantarki don nunin nunin LED?
Ana sarrafa nau'ikan nunin nunin LED kuma ana samarwa ta hanyar haɗa albarkatun ƙasa kamar beads na fitilar LED, allon da'ira na PCB, ICs, da kits. Ka'idar aiki na samfuran nunin nunin LED shine cewa IC na yau da kullun yana fitar da guntu mai fitar da haske a cikin fitilun fitilar LED don nuna launuka.
Dangane da launi na nuni, samfuran nunin nunin LED sun kasu kashi uku: launi ɗaya, launi biyu, da cikakken launi. Dangane da kewayon aikace-aikacen, ana rarraba nau'ikan LED zuwa na'urori na cikin gida da na'urorin waje.
Gabaɗaya magana, na'urorin LED masu cikakken launi na yanzu suna da girma, na yanzu na LED masu launi ɗaya da launuka biyu ba su da ɗanɗano kaɗan, na yanzu na na'urorin LED na waje suna da girma, kuma na yanzu na na'urorin LED na cikin gida kaɗan ne. Duk da haka, lokacin da masana'anta ke debugging da "fararen ma'auni" na LED module, da aiki halin yanzu na al'ada guda LED nuni allon module ne kullum a kasa 10A.
Da farko, muna bukatar mu auna halin yanzu na daya LED module.
Za mu iya amfani da multimeter don haɗawa zuwa da'ira don auna ainihin sigogi na yanzu na module LED. Yau, za mu dauki P10-4S waje LED nuni module a matsayin misali don bayyana yadda za a auna module halin yanzu sigogi mataki-mataki.
Mataki na 1, shirya kayan aiki da abubuwa
Mun shirya da yawa P10-4S waje LED nuni kayayyaki, multimeter (iya auna DC halin yanzu a cikin 10A), da yawa wayoyi, lantarki tef, waya strippers, LED nuni iko katin, LED nuni ikon samar.
Mataki na 2, haɗa daidai
A cikin wannan gwajin ma'aunin, muna amfani da multimeter azaman ammeter na DC. Matsakaicin kewayon multimeter don auna halin yanzu na DC shine 10A. Muna haɗa multimeter a cikin jerin zuwa kewaye na module LED.
Takaitaccen jerin wayoyi shine:
1. Haɗa AC 220V zuwa ƙarshen shigarwar wutar lantarki ta LED (daidai da matsayin mai canza wuta, yana canza 220V AC zuwa 5V DC).
2. Haɗa waya daga madaidaicin sandar ƙarshen fitarwa zuwa alƙalamin jajayen waya (Pole mai kyau) na multimeter.
3. Toshe jajayen waya cikin jajayen ramin “10A” akan multimeter
4. Haɗa alƙalamin baƙar fata zuwa jan waya (tabbatacciyar sandar sanda) na igiyar wutar lantarki
5. Toshe igiyar wutar lantarki a cikin module kullum
6. Haɗa baƙar fata waya (mara iyaka) na module ikon igiyar baya zuwa korau iyakacin duniya na fitarwa karshen LED samar da wutar lantarki.
Mataki na 3, auna karatun
Za mu iya ganin cewa lokacin da aka toshe soket ɗin shigar da wutar lantarki kuma aka kunna nunin LED gabaɗaya, halin yanzu na ƙirar guda ɗaya ba ta da girma sosai. Kamar yadda abun cikin sake kunnawa ke canzawa, karatun akan multimeter shima yana canzawa, yana kiyayewa a 1-2A.
Muna danna maɓallin gwaji akan katin sarrafawa don canza yanayin allo kuma mu sami bayanan gwaji masu zuwa:
a. A halin yanzu shine mafi girma lokacin da "duk farar fata", kusan 5.8A
b. A halin yanzu shine 3.3A a jahohin ja da kore
c. A halin yanzu shine 2.0A cikin yanayin shuɗi
d. Lokacin komawa zuwa abun cikin shirin na yau da kullun, halin yanzu yana canzawa tsakanin 1-2A.
Mataki na 4, lissafi
Yanzu za mu iya ƙididdige adadin nau'ikan LED nawa mai samar da wutar lantarki zai iya ɗauka dangane da sakamakon ma'aunin da ke sama. Takamammen hanyar lissafin ita ce: Kowane mai ba da wutar lantarki na LED shine ainihin mai canzawa. Ɗaukar samar da wutar lantarki na 200W da aka saba amfani da shi a matsayin misali, masana'anta suna ba da sigogin kaya a matsayin "fitarwa 5V40A" da "ƙididdigar canji mai inganci 88%".
Ingantacciyar wutar lantarki da aka samar ta hanyar samar da wutar lantarki ta LED: P=88% x 200W=176W. Dangane da dabarar: P = UI, ana iya samun matsakaicin amfani da wutar lantarki guda ɗaya na LED: P1 = UI = 5V x 5.8A = 29W. Daga wannan, ana iya ƙididdige adadin nau'ikan nau'ikan da madaidaicin wutar lantarki na LED guda ɗaya zai iya ɗauka: n=P/P1=176W/29W≈6.069
Dangane da lissafin da ke sama, mun san cewa lokacin da adadin na'urorin LED da ke ɗauke da su bai wuce 6 ba, wutar lantarkin LED ba ta cika nauyi ba.
Halin da muke ƙididdigewa shine matsakaicin halin yanzu lokacin da tsarin LED ya kasance "duk farar fata", kuma aikin halin yanzu yayin sake kunnawa na yau da kullun shine kawai 1 / 3-1 / 2 na matsakaicin halin yanzu. Saboda haka, adadin nauyin da aka ƙididdige bisa ga matsakaicin halin yanzu shine lambar kaya mai aminci. Sa'an nan nawa LED kayayyaki da aka spliced tare don samar da dukan babban LED nuni allo, sa'an nan kuma raba ta wannan lafiya load lambar, za mu iya samun nawa LED samar da wutar lantarki da ake amfani da a cikin LED nuni allo.
Canja Wutar Lantarki Samar da wutar lantarki mai hana ruwa ruwa Samar da wutar lantarki mai bakin ciki
Mai ba da wutar lantarki na LED, idan kuna sha'awar samfuranmu, da fatan za a tuntuɓe mu!
Lokacin aikawa: Yuli-20-2024