Takardar Bayani na LTS-4817SW-P LED Display - Tsayin Lamba 0.39-inch - Fararen Sassa - Ƙarfin Wutar Gaba 3.2V - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTS-4817SW-P na'urar nuni ce ta lamba ko haruffa ta LED mai hawa a saman. An ƙera ta da tsayin lamba 0.39-inch (10.0 mm), wanda ya sa ta dace da aikace-aikacen da ke buƙatar ƙaramin nuni na lambobi ko haruffa masu iya karantawa sosai. Na'urar tana amfani da fasahar semiconductor na InGaN (Indium Gallium Nitride) don samar da haske fari, tana ba da madadin zamani ga tsofaffin LED na fari da aka tace ko aka canza. Fuskar sa mai launin toka tare da fararen sassa yana ba da bambanci mai kyau don mafi kyawun karantawa.

1.1 Siffofi da Matsayi Mafi Muhimmanci

An ƙera wannan na'urar nuni don aminci da aiki mai kyau a cikin na'urorin lantarki na masu amfani, kayan aikin masana'antu, dashbodin motoci, da kuma allunan sarrafa kayan aiki. Babban fa'idodinsa sun haɗa da ƙirar sassa mai ci gaba da kaiɗa, wacce ke kawar da gibi don bayyanar tsafta, da kuma faɗin kusurwar kallo wanda ke tabbatar da ganuwa daga matsayi daban-daban. An rarraba na'urar don ƙarfin haske da ƙarfin wutar gaba, wanda ke ba da damar daidaita haske da daidaiton launi a cikin samarwa mai yawa. Kasancewar kunshin da ba shi da gubar wanda ya bi ka'idojin RoHS ya sa ya dace da kasuwannin duniya masu tsauraran dokokin muhalli.

2. Zurfin Bincike na Ƙayyadaddun Fasaha

Aikin LTS-4817SW-P an bayyana shi ta cikin cikakken saitin ma'auni na lantarki da na gani waɗanda ke da mahimmanci don ƙira.

2.1 Matsakaicin Ma'auni na Cikakke

Waɗannan ma'auni suna bayyana iyakokin damuwa waɗanda sama da su lalacewa na dindindin na iya faruwa. Matsakaicin ɓarnar wutar lantarki a kowane sashi shine 35 mW. Matsakaicin halin yanzu na gaba shine 50 mA, amma kawai a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun 0.1 ms). Ci gaba da halin yanzu na gaba a kowane sashi an rage shi daga 10 mA a 25°C a ƙimar 0.11 mA/°C, ma'ana halin da ake yarda da shi yana raguwa yayin da yanayin yanayi ke ƙaruwa. An ƙayyade kewayon yanayin aiki da ajiya daga -35°C zuwa +105°C, yana nuna ƙarfi ga yanayi masu tsauri. An ƙayyade yanayin gishiri a matsayin 260°C na dakika 3 a 1/16 inch (kusan 1.6 mm) a ƙasan farantin zama.

2.2 Halayen Lantarki & Na Gani

A ƙarƙashin yanayin gwaji na yau da kullun (Ta=25°C, IF=5mA), ma'auni mafi mahimmanci sune: Matsakaicin ƙarfin haske a kowane guntu ya bambanta daga mafi ƙanƙanta 71 mcd zuwa mafi girma 165 mcd. Ƙarfin wutar lantarki na gaba a kowane guntu (VF) ya bambanta daga 2.7V zuwa 3.2V. Juyawar halin yanzu (IR) shine matsakaicin 100 µA a VR=5V, amma wannan yanayin gwaji ne kawai; ba a nufin na'urar don ci gaba da aikin juyawa ba. Matsakaicin daidaiton ƙarfin haske tsakanin sassa shine 2:1 ko mafi kyau, yana tabbatar da haske iri ɗaya. An ba da daidaitawar launi (x, y) bisa ga ma'aunin CIE na 1931, tare da ƙimar yau da kullun kusa da x=0.294, y=0.286, suna bayyana wurin fari. An lura da ƙayyadaddun magana mara so na ≤ 2.5%, wanda ke nufin ɓarkewar haske da ba a so tsakanin sassa maƙwabta.

3. Bayanin Tsarin Rarraba

Don tabbatar da daidaito, LED ɗin da aka yi amfani da su a cikin wannan na'urar nuni an rarraba su zuwa kwandon ajiya bisa ma'auni mafi mahimmanci.

3.1 Rarraba Ƙarfin Wutar Gaba (VF)

Ana rarraba LED ɗin zuwa kwandon ajiya (3, 4, 5, 6, 7) bisa ga ƙarfin wutar gaba a 5mA. Kowane kwandon ajiya yana da kewayon 0.1V (misali, Kwandon ajiya 3: 2.70-2.80V, Kwandon ajiya 4: 2.80-2.90V). Ana ba da izinin sallamar ±0.1V a cikin kowane kwandon ajiya. Wannan yana ba masu ƙira damar zaɓar sassa don aikace-aikacen da ke da hankali ga raguwar wutar lantarki ko ƙirar wutar lantarki.

3.2 Rarraba Ƙarfin Hasken (IV)

An rarraba haske zuwa kwandon ajiya mai lakabin Q11, Q12, Q21, Q22, R11, R12, R21. Kowane kwandon ajiya ya ƙunshi takamaiman kewayon mcd a 5mA (misali, Q11: 71.0-81.0 mcd, R21: 146.0-165.0 mcd). Sallamar ±15% ta shafi kowane kwandon ajiya. Wannan tsarin yana ba da damar daidaita hasken nuni a cikin raka'a ko lambobi da yawa.

3.3 Rarraba Launi (Chromaticity)

An sarrafa launin hasken fari ta hanyar kwandon ajiya na launi (S1-2, S2-2, S3-1, S3-2, S4-1, S4-2, S5-1, S6-1). An bayyana kowane kwandon ajiya ta wurin yanki mai siffar huɗu akan zanen launi na CIE 1931, yana ƙayyade kewayon da ake yarda da shi na daidaitawar x da y. Ana kiyaye sallamar ±0.01. Wannan yana rage bambancin launi da ake iya gani tsakanin sassa ko na'urorin nuni.

4. Bincike na Lanƙwasa Aiki

Yayin da aka ambaci takamaiman bayanan hoto a cikin takardar, lanƙwasa na yau da kullun don irin waɗannan na'urori sun haɗa da alaƙar tsakanin halin yanzu na gaba (IF) da ƙarfin wutar gaba (VF), wanda ke da ma'ana mai yawa. Alakar tsakanin halin yanzu na gaba (IF) da ƙarfin haske (IV) gabaɗaya layi ne a cikin kewayon aiki. Tasirin yanayin yanayi (Ta) akan ƙarfin haske yana nuna ƙimar mara kyau; haske yana raguwa yayin da zafin jiki ke ƙaruwa. Fahimtar waɗannan lanƙwasa yana da mahimmanci don ƙirar da'irar tuƙi da sarrafa zafi don kiyaye fitowar gani mai daidaito a tsawon rayuwar samfurin.

5. Bayanin Injiniya & Kunshin

5.1 Girman Kunshin

Na'urar ta yi daidai da takamaiman sawun SMD. Mahimman girma sun haɗa da tsayin gabaɗaya, faɗi, da tsayi, da kuma tazarar jagora (fil) da girman. Ana ba da izinin sallamar ±0.25 mm sai dai idan an ƙayyade wani abu. Ƙarin bayanan inganci suna magance iyakoki don abubuwan waje, gurɓataccen tawada, kumfa a cikin sashi, lanƙwasawa na mai nuna haske, da ƙwanƙwasa na fil, waɗanda ke da mahimmanci don yawan haɗawa da bayyanar ƙarshe.

5.2 Pinout da Zanen Da'ira

Na'urar nuni tana da tsarin anode gama gari. Zanen da'ira na ciki yana nuna fil goma: biyu fil ɗin anode gama gari ne (fil 3 da 8), sauran takwas kuma katod ne don sassa A, B, C, D, E, F, G, da maki goma (DP). An jera Fil 1 a matsayin \"Babu Haɗin kai.\" Wannan tsarin yana buƙatar direba mai nutsewar halin yanzu; an haɗa anodes zuwa wadataccen wutar lantarki (ta hanyar resistors masu iyakance halin yanzu), kuma ana haskaka sassa daban-daban ta hanyar ja fil ɗin katod ɗin da suka dace zuwa ƙasa.

5.3 Tsarin Gishiri da Aka Shawarta

An ba da tsarin ƙasa (sawu) don ƙirar PCB. Wannan tsarin yana tabbatar da samuwar haɗin gishiri daidai yayin sake kunnawa, yana ba da isasshen ƙarfin injiniya, kuma yana hana gada gishiri. Bin wannan tsarin yana da mahimmanci don haɗawa mai dogaro da saman.

6. Jagororin Gishiri & Haɗawa

6.1 Ma'auni na Gishirin Sake Kunnawa

Na'urar na iya jure matsakaicin sake zagayowar kunnawa guda biyu, tare da buƙatar lokacin sanyaya zuwa yanayin daki tsakanin zagayowar. Shawarar bayyanannen sake kunnawa tana da yankin pre-heat na 120-150°C na matsakaicin dakika 120, kuma matsakaicin zafi bai wuce 260°C ba. Don gyara da hannu, zafin gwangwani gishiri bai kamata ya wuce 300°C ba, tare da iyakance lokacin tuntuɓar zuwa matsakaicin dakika 3. Wuce waɗannan sharuɗɗan na iya lalata kunshin filastik ko guntu na LED.

6.2 Kariya daga Zubar da Wutar Lantarki (ESD)

Guntu na InGaN yana da hankali ga zubar da wutar lantarki. Ƙa'idodin dole sun haɗa da amfani da bel ɗin wuyan da aka kafa ƙasa ko safofin hannu masu hana tashin hankali ta ma'aikata. Dole ne duk tashoshin aiki, kayan aiki, da wuraren ajiya su kasance da ƙasa daidai. Ana ba da shawarar amfani da masu ƙwayoyin cuta don kawar da cajin tsaye wanda zai iya taruwa akan kunshin filastik yayin sarrafawa. Rashin kiyaye sarrafa ESD na iya haifar da lalacewar na'urar a ɓoye ko bala'i.

7. Bayanin Kunshin da Oda

7.1 Kunshin Kaset da Reel

Ana samar da abubuwan a cikin kaset ɗin mai ɗaukar kaya da aka zana a kan reels, wanda ya dace da injunan zaɓi da sanyawa ta atomatik. An ƙayyade cikakkun girma na reel (diamita na reel, faɗin cibiya, da sauransu) da girman kaset ɗin mai ɗaukar kaya (girman aljihu, tsayi, cikakkun bayanan rami). Mahimman sallamar sun haɗa da sallamar tarawa na ±0.20 mm akan ramukan sprocket 10 da iyakar camber (karkace) na 1 mm akan 250 mm na kaset ɗin mai ɗaukar kaya.

8. Bayanan Aikace-aikace & Abubuwan Ƙira

8.1 Da'irori na Aikace-aikacen Yau da Kullun

Da'irar tuƙi ta yau da kullun ta ƙunshi haɗa fil ɗin anode gama gari zuwa tushen wutar lantarki mai kyau (misali, 5V) ta hanyar resistor mai iyakance halin yanzu. An ƙididdige ƙimar wannan resistor bisa ga ƙarfin wutar lantarki, ƙarfin wutar gaba na sashin LED (VF), da halin yanzu na gaba da ake so (IF). Don haɗa lambobi da yawa, ana iya amfani da transistor ko takamaiman IC direba don sauya anodes gama gari, yayin da katod ɗin sassa ke tuƙa ta hanyar rajistar motsi ko faɗaɗa tashar.

8.2 Sarrafa Hasken da Halin Yanzu

Tunda ƙarfin haske yana da kusan daidai da halin yanzu na gaba, ana iya sarrafa haske ta hanyar PWM (Pulse Width Modulation) na halin yanzu na tuƙi. Wannan ya fi tasiri da inganci fiye da duhu na analog ta hanyar canjin wutar lantarki. Dole ne a mutunta lanƙwasa rage ƙimar don ci gaba da halin yanzu a cikin aikace-aikacen zafi mai girma don hana yin zafi da saurin raguwar lumen.

8.3 Gudanar da Zafi

Ko da yake ɓarnar wutar lantarki ƙanƙanta ce a kowane sashi, dole ne a yi la'akari da zafin da aka haɗa daga sassa masu haske da yawa a cikin ƙaramin kunshin. Isasshen yankin tagulla na PCB a kusa da kushin na iya zama mai sanyaya zafi. Tabbatar da isasshen iska a cikin akwatin samfur na ƙarshe yana taimakawa wajen kiyaye zafin haɗin gwiwa a cikin iyakoki masu aminci, yana adana tsawon rai da kwanciyar hankali na launi.

9. Kwatancen Fasaha & Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar LED na GaP ko GaAsP da aka tace, LED na fari na InGaN yana ba da haske mafi girma, inganci mafi kyau, da mafi kyawun wurin launin fari na zamani. Tsarin anode gama gari ya zama gama gari kuma yana samun goyon bayan da yawa na daidaitattun direbobin IC. Girman 0.39-inch ya cika wani ɓangare tsakanin ƙananan masu nuna alama da manyan na'urorin nuni masu lambobi da yawa. Cikakken rarraba don ƙarfi, wutar lantarki, da launi yana ba da matakin daidaito wanda ke da mahimmanci ga samfuran ƙwararrun ƙwararru inda daidaiton gani ke da mahimmanci.

10. Tambayoyin da ake yawan yi (FAQ)

10.1 Menene manufar fil ɗin anode gama gari guda biyu?

Fil ɗin biyu (3 da 8) an haɗa su a ciki. Samar da filaye biyu yana taimakawa wajen rarraba jimillar halin yanzu na anode, yana rage yawan halin yanzu a cikin jagororin kunshin, kuma zai iya taimakawa a cikin shimfidar PCB don daidaito da aminci.

10.2 Zan iya tuƙa wannan na'urar nuni tare da microcontroller 3.3V?

Ee, amma ana buƙatar ƙira mai hankali. VF na yau da kullun shine 2.7-3.2V. A wadataccen wutar lantarki 3.3V, sararin samaniya na wutar lantarki don resistor mai iyakance halin yanzu yana da ƙanƙanta sosai (0.1-0.6V). Wannan yana buƙatar ƙaramin ƙimar resistor, yana sa halin yanzu ya zama mai hankali ga bambance-bambance a cikin VF da ƙarfin wutar lantarki. Gabaɗaya ana ba da shawarar wadataccen wutar lantarki 5V don aiki mafi kwanciyar hankali, ko kuma dole ne a yi amfani da takamaiman direban LED na halin yanzu na yau da kullun.

10.3 Ta yaya zan fassara lambobin kwandon ajiya na launi (misali, S3-2)?

Lambar kwandon ajiya tana dace da takamaiman yanki akan zanen launi na CIE da aka bayyana a cikin takardar bayani. Masu ƙira na iya ƙayyade kwandon ajiya da ake buƙata ko kewayon kwandon ajiya lokacin yin oda don tabbatar da daidaiton launi a cikin jerin samarwa. Ga yawancin aikace-aikacen gabaɗaya, kowane daidaitaccen kwandon ajiya na fari ana yarda da shi.

11. Nazarin Hali na Ƙira na Aiki

Yi la'akari da ƙirar nuni na lokaci na lambobi ta amfani da lambobi huɗu na LTS-4817SW-P. Ƙirar za ta ƙunshi ƙirar PCB tare da sawu huɗu iri ɗaya bisa ga tsarin gishiri da aka shawarata. Microcontroller zai haɗa lambobin, yana ƙarfafa anode gama gari na lamba ɗaya a lokaci ɗaya yayin fitar da tsarin sashi don wannan lambar. Za a sanya resistors masu iyakance halin yanzu akan layukan anode gama gari. Dole ne ƙimar sabuntawa ta yi girma sosai (yawanci >60 Hz) don guje wa flicker da ake iya gani. Dole ne a ƙayyade lambobin kwandon ajiya don ƙarfi da launi ga mai bayarwa don tabbatar da cewa duk lambobi huɗu suna kama da juna. Kariya daga ESD yayin haɗawa da sarrafa dole ne.

12. Ka'idar Fasaha

LTS-4817SW-P yana amfani da guntu na LED na tushen InGaN. InGaN wani abu ne na semiconductor wanda ke iya fitar da haske a cikin bakan shuɗi zuwa ultraviolet. Don samar da haske fari, mai yiwuwa na'urar tana amfani da guntu na InGaN mai fitar da shuɗi tare da murfin phosphor. Phosphor yana ɗaukar wani ɓangare na hasken shuɗi kuma ya sake fitar da shi azaman hasken rawaya. Cakuda sauran hasken shuɗi da hasken rawaya da aka fitar idon ɗan adam yana ganinsa a matsayin fari. Wannan hanya ce ta gama gari kuma mai inganci don ƙirƙirar LED na fari.

13. Trends na Masana'antu

Trend a cikin na'urorin nuni na SMD da masu nuna alama yana ci gaba zuwa ga inganci mafi girma (lumens mafi yawa a kowace watt), yana ba da damar rage amfani da wutar lantarki ko haske mafi girma. Hakanan akwai yunƙurin ƙananan ƙira yayin kiyayewa ko inganta karantawa. Daidaiton launi da ƙaramin rarraba suna ƙara mahimmanci ga manyan kayan lantarki na masu amfani. Bugu da ƙari, haɗa da'irar direba kai tsaye tare da kunshin nuni shine yanayin girma, yana sauƙaƙa ƙirar tsarin ga masu amfani na ƙarshe.