Babban ƙarfin shigarwa na farko don fitilun tsiri na LED shine 12Vdc da 24Vdc, bi da bi. Suna da aminci da sauƙin aiki tare da su. Amma, sau da yawa muna jin wannan magana: Fitilar LED ta fi haske a wannan ƙarshen kuma tana dimmer a ɗayan. Me yasa?
Amsar ita ce raguwar wutar lantarki. A gaskiya, wannan abu ne na al'ada a ƙananan tsarin hasken wuta.
A cikin wannan labarin za mu yi magana game da:
Menene raguwar wutar lantarki ta tsiri LED?
Fitar wutar lantarki ta LED shine adadin wutar lantarki da aka rasa tsakanin wutar lantarki da LEDs da kansu.
Mafi girman juriya a cikin kewayawa, mafi girman raguwar ƙarfin lantarki.
A cikin da'irar DC na ɗigon jagora, ƙarfin lantarki zai ragu sannu a hankali yayin da yake wucewa ta cikin waya da hasken tsiri kanta. Don haka, tsawo na waya ko tsiri zai kai ga gefe ɗaya na fitilun fitilun ku ya zama haske fiye da ɗayan.
Me yasa faduwar wutar lantarki ta tsiri LED ke faruwa?
Dalili na farko shine kowane tsayin waya yana da takamaiman adadin juriya na lantarki. Da tsayi da waya, da ƙarin juriya. Juriyar wutar lantarki yana haifar da raguwar ƙarfin lantarki, kuma raguwar ƙarfin lantarki yana sa LEDs ɗin ku su yi rauni.
Dalili na biyu shine PCB kanta yana da juriya. Juriya na PCB zai cinye ɓangaren wutar lantarki kuma ya canza wutar lantarki zuwa makamashin thermal.
Juriya na PCB yana da alaƙa da girman ɓangaren ɓangaren (daidai da faɗin hukumar PCB da kauri na jan karfe). Mafi girman sashin giciye na PCB, ƙaramin juriya; tsayin tsayin PCB, mafi girman juriya.
Yadda ake samun raguwar wutar lantarki?
Digowar wutar lantarki ta LED shine mafi sananne akan farar jagorar jagora don haka zaku iya buɗe farin haske akan tsiri mai canza launi don lura da raguwar ƙarfin lantarki.
Bari mu ga ko za mu iya ganin raguwar ƙarfin lantarki ta hanyar tafiyar da ɗigon jagorar haske mai nisa. A cikin hoton da ke ƙasa, za mu iya ganin cewa farkon (matsayi "1") ya bayyana fari, kuma bayan gudu don nisa (matsayi "2"), farin haske ya juya launin rawaya a hankali, kuma a ƙarshen ragamar jagorancin ( matsayi "3"), farin haske ya juya ja saboda raguwar ƙarfin lantarki.
( Tunatarwa: Lokacin da aka yi birgima da fitilun fitilar, bai kamata a kunna shi na dogon lokaci ba, wanda zai lalata tushen jagorar.)
LED tsiri ƙarfin lantarki yana da alaƙa da kwakwalwan kwamfuta na LED. A ƙasa akwai ƙarfin wutan gaba da ake buƙata don faifan guntu launi da yawa.
- Gudun LED mai shuɗi: 3.0-3.2V
- Green LED guntu: 3.0-3.2V
- Gudun ja na LED: 2.0-2.2V
lura: Farin LED ɗin yana amfani da guntu shuɗi sannan yana ƙara phosphor a saman.
Wutar lantarki ta blue chips ya fi na kore da ja guntu. Don haka lokacin da wutar lantarki ta farar led ɗin tsiri mai haske ta faɗi, kuma ƙarfin lantarki na yanzu ba zai iya cika ƙarfin lantarki da blue chips ɗin ke buƙata ba, ɗigon hasken zai nuna launin rawaya (green & ja mai hade da launin ja) da ja saboda sun yi ƙasa da ƙarfin lantarki da ake buƙata. farin haske.
Shin duk fitilun fitilun LED suna da raguwar wutar lantarki?
Ainihin, duk ƙananan igiyoyin LED masu ƙarancin ƙarfi, kamar 5Vdc, 12Vdc, da 24Vdc zasu sami matsalolin raguwar wutar lantarki. Domin don amfani da wutar lantarki guda ɗaya, ƙananan ƙarfin lantarki, mafi girma na yanzu. Bisa ga dokar Ohm, ƙarfin lantarki yana daidai da juriya wanda aka ninka ta halin yanzu. Juriya na madugu yana dawwama. Mafi girman halin yanzu, mafi girman raguwar wutar lantarki. Wannan kuma shine dalilin da yasa mutane ke amfani da wutar lantarki mai ƙarfi don watsa wutar lantarki!
Babban ƙarfin lantarki na LED tube, kamar 110VAC, 220VAC, da 230VAC, gabaɗaya ba su da matsalar raguwar ƙarfin lantarki. Don ciyarwar wuta ta ƙarshe ɗaya, matsakaicin nisan gudu na fitilolin hasken wuta na LED mai ƙarfi zai iya zuwa mita 50. Dangane da karfin wutar lantarki da aka ninka da na yanzu, ƙarfin wutar lantarki na babban fitilun LED yana da 110V ko 220V, don haka halin yanzu na babban fitilun LED ɗin yana da ƙanƙanta sosai, don haka faɗuwar wutar lantarki shima kaɗan ne.
The madaurin hasken LED na yau da kullun, gabaɗaya 24Vdc, ba zai sami matsalar raguwar ƙarfin lantarki ba. Saboda kullun LED na yau da kullun suna da ICs, waɗannan ICs na iya kiyaye halin yanzu yana gudana ta cikin LEDs akai-akai. Matukar na yanzu ta hanyar LED ya kasance akai-akai, hasken LED shima yana dawwama.
A gaskiya ma, ƙarfin lantarki na LED na yau da kullum zai ragu. Misali, wutar lantarki a ƙarshen madaurin hasken LED na yau da kullun kuma zai kasance ƙasa da 24V. A karkashin yanayi na al'ada, raguwar ƙarfin lantarki zai haifar da raguwa a halin yanzu ta hanyar LED, yana haifar da ƙananan haske. Duk da haka, tun da akwai ICs akan raƙuman LED na yau da kullum, waɗannan ICs na iya ci gaba da wucewa ta halin yanzu ta hanyar LEDs akai-akai, wanda ke buƙatar kasancewa a cikin wani takamaiman ƙarfin lantarki (misali, 24V ~ 19V).
Shin faɗuwar wutar lantarki ta tsiri LED tana da illa?
Fitar wutar lantarki ta LED yawanci ba ta da lahani ga LEDs tunda nau'i ne inda ƙarfin lantarkin da aka kawo musu bai kai abin da ake tsammani ba.
Duk da haka, raguwar ƙarfin lantarki yawanci yana wakiltar juyawar wutar lantarki zuwa makamashin thermal na resistor, wanda ke haifar da zafi mai yawa. Wannan na iya haifar da matsala idan an shigar da tsiri na LED a ciki ko kusa da kayan da ke da zafi. 3M adhesives da LEDs suma suna da ɗan zafin zafi don haka raguwar ƙarfin lantarki na iya zama matsala.
Wadanne abubuwa ne za su shafi raguwar wutar lantarki?
Bisa ga dokar Ohm, ƙarfin lantarki daidai yake da juriya na zamani.
Juriya na waya yana ƙaddara ta tsawonsa da girmansa. Juriya na PCB LED tsiri an ƙaddara ta tsawon da kauri na jan ƙarfe a cikin PCB.
Don haka, ana iya ƙayyade matakin digowar ƙarfin lantarki na tube na LED ta hanyar manyan abubuwan: jimlar halin yanzu na tsiri LED, tsayi da diamita na waya, tsayin tsiri na LED da kauri na tagulla na PCB.
Jimlar halin yanzu na LED tsiri
Ta hanyar ƙayyadaddun tsiri na LED, za mu iya sanin ikon tsiri na LED mai tsayin mita 1, ta yadda za mu iya ƙididdige jimlar ikon tsiri na LED.
Jimlar halin yanzu na tsiri na LED daidai yake da jimlar ƙarfin da ƙarfin lantarki ya raba.
Don haka mafi girman ƙarfin duka, mafi girman ƙarfin halin yanzu, kuma ta haka zai fi ƙarfin raguwar ƙarfin lantarki. Saboda haka, digowar wutar lantarki na tube LED tare da babban iko ya fi na fitilun LED da ƙaramin ƙarfi.
A madadin, ƙananan ƙarfin lantarki, mafi girma na yanzu kuma mafi tsanani raguwar ƙarfin lantarki. Saboda haka, juzu'in wutar lantarki na 12V LED tsiri ya fi na tsiri 24V tsanani.
Tsawon da diamita na waya
Juriya na waya an ƙaddara shi ne ta hanyar kayan mai gudanarwa, tsayin mai gudanarwa, da ɓangaren ɓangaren mai gudanarwa.
Juriya na waya an ƙaddara shi ne ta hanyar kayan mai gudanarwa, tsayin mai gudanarwa, da ɓangaren giciye na mai gudanarwa. Tsawon waya, mafi girman juriya, kuma ƙarami ɓangaren giciye, mafi girma juriya.
Za ka iya duba fitar da Kayan aikin Lissafin Resistance Waya don yin lissafin mafi sauƙi.
Tsawon da kauri na jan ƙarfe a cikin PCB
PCBs suna kama da wayoyi, su duka madugu ne kuma suna da juriya da kansu. Abubuwan da ke gudana a cikin PCB shine jan karfe. Tsawon lokacin PCB, mafi girman juriya; mafi girman sashin giciye na jan karfe a cikin PCB, ƙaramin juriya.
Za ka iya duba fitar da PCB Resistance Calculation Tool don yin lissafin ƙarin ƙoƙari.
Yadda Ake Guji Juyin Wutar Lantarki?
Kodayake tsiri na LED zai sami matsalar raguwar wutar lantarki, za mu iya guje masa ta amfani da hanyoyi masu zuwa.
Layi daya Connections
Lokacin da ake buƙatar shigar da filaye masu tsayi na LED, ana ba da shawarar cewa kowane mita 5 na tube a haɗa shi da wutar lantarki a layi daya.
Samar da wutar lantarki a ƙarshen biyu na hasken tsiri na jagora
Matsakaicin matsakaicin tsayin igiyoyin LED akan kasuwa shine mita 5. Idan kana buƙatar shigar da tsiri na LED mai tsayin mita 10, zaka iya haɗa ƙarshen igiyar LED zuwa wutar lantarki.
Yi amfani da kayan wuta da yawa
Amfani da kayan wuta da yawa maimakon raka'a ɗaya shine babban ra'ayi don samun haske mai kyau. Yana buƙatar tsara dabaru, don haka ba za ku yi nisa sosai daga tushen wutar lantarki ba.
Yi amfani da babban ƙarfin lantarki 48Vdc ko 36Vdc LED tsiri
Yi amfani da firam ɗin LED masu ƙarfin shigarwa mafi girma don guje wa matsalolin faɗuwar wutar lantarki.
Misali, yi amfani da 48V, 36V, da 24V maimakon 12V da 5V.
Domin mafi girman ƙarfin lantarki yana nufin ƙananan halin yanzu, raguwar ƙarfin lantarki.
Yi amfani da igiyoyin LED tare da PCB mai kauri mai kauri
Copper shine kayan da aka fi amfani dashi a cikin wayoyin lantarki. Wannan shi ne saboda yana gudanar da wutar lantarki da kyau kuma ba shi da tsada idan aka kwatanta da azurfa.
Yawan jan karfe ana auna shi da oza. Mafi kauri da waya ta jan ƙarfe, mafi yawan halin yanzu yana gudana.
Muna ba da shawarar yin amfani da 2oz. ko 3 oz. don manyan igiyoyin LED masu ƙarfi don guje wa faɗuwar wutar lantarki.
Mafi girma da waya ta jan karfe, ƙananan juriya na ciki.
Don haka, wayar jan ƙarfe za ta ɗauki ƙarin ƙarfin wutar lantarki.
Bugu da ƙari, yana da kyau don zubar da zafi.
Yi amfani da waya mai girma
Wani lokaci, wurin da aka shigar da tsiri na LED yana da nisa mai nisa daga wutar lantarki. Sa'an nan kuma dole ne mu yi la'akari da girman girman waya da muke buƙatar amfani da shi don haɗa igiyar LED da wutar lantarki. Tabbas, girman girman waya, mafi kyau. Muna bukatar mu san menene digowar wutar lantarki da za mu iya karba, kuma mu san me wannan tsayin waya ke haifar da raguwar wutar lantarki.
Kuna iya ƙayyade girman waya ta bin matakan da ke ƙasa:
Mataki 1. Yi lissafin Wattage
Kuna iya duba ƙarfin kowace mita akan alamar marufi na tsiri na LED, don haka jimlar ƙarfin shine ƙarfin kowace mita wanda aka ninka ta jimlar adadin mita. Sa'an nan kuma raba jimlar wutar lantarki da ƙarfin lantarki don samun jimlar halin yanzu.
Mataki 2. Auna tazarar dake tsakanin igiyar LED da direba
Auna tazara tsakanin tsiri na LED da wutar lantarki ta LED. Wannan kai tsaye yana shafar girman waya.
Mataki 3. Zaɓi waya mai girman daidai
Kuna iya lissafin digowar wutar lantarki ta waya ta amfani da Kalkuleta Juyin Wutar Lantarki.
Kuna iya gwada canza diamita na waya daban-daban a cikin kalkuleta don ganin raguwar ƙarfin lantarki daidai da diamita na waya daban-daban.
Ta wannan hanyar, nemo waya mai girman daidai (tare da juzu'in wutar lantarki zaka iya karɓa).
Yi amfani da igiyar LED mai tsayi mai tsayi
The Super Long akai halin yanzu (CC) LED tsiri haske zai iya kaiwa mita 50, mita 30, mita 20, da mita 15 a kowace reel, kuma kawai yana buƙatar haɗawa da wutar lantarki a gefe ɗaya, kuma haske na farko da na ƙarshe iri ɗaya ne.
Ta hanyar ƙara abubuwan haɗin IC na yau da kullun zuwa da'ira, babban dogayen madaidaiciyar jagorar jagora na yanzu na iya tabbatar da cewa na yanzu ta hanyar LED za'a iya kiyaye shi akai-akai a cikin takamaiman kewayon ƙarfin lantarki (alal misali, 24V ~ 19V) ta yadda hasken LED yake. m.
Kammalawa
Ana iya magance matsalar raguwar wutar lantarki, amma zai kashe ku ɗan lokaci ko kuɗi. Idan kuna son adana kuɗi, zaku iya haɗa ɗigon jagora a layi daya da wutar lantarki ko haɗa ƙarshen igiyoyin jagoran zuwa wutar lantarki. Idan kuna buƙatar adana lokaci, zaku iya zaɓar filayen LED tare da PCB mai kauri mai kauri ko manyan filayen LED na yau da kullun. Koyaya, wani lokacin lokaci shine kuɗi.
LEDYi yana kera inganci mai inganci LED tube da LED neon flex. Duk samfuranmu suna tafiya ta cikin dakunan gwaje-gwaje masu fasaha don tabbatar da mafi kyawun inganci. Bayan haka, muna ba da zaɓuɓɓukan da za a iya daidaita su akan filayen LED ɗinmu da lanƙwasa neon. Don haka, don ɗigon LED mai ƙima da LED neon flex, lamba LEDY ASAP!
