Takardar Bayanin LED LTP-2157AKR - Tsayin Matrix 2.0-inch (50.8mm) - AlInGaP Super Red - Ƙarfin Gaba 2.6V - Rage Wutar Lantarki 70mW - Takardar Fasaha ta Turanci

1. Bayyani Game da Samfur

LTP-2157AKR wani tsari ne na nuni na LED mai matrix alfanumerik 5x7 mai jirgin sama guda ɗaya. Babban aikinsa shine nuna haruffa, alamomi, ko zane-zane masu sauƙi a cikin aikace-aikacen da ke buƙatar ƙaramin, ƙarancin wutar lantarki, da ingantaccen fitarwa na gani. Babban ɓangaren wannan nunin shine amfani da kayan semiconductor na AlInGaP (Aluminum Indium Gallium Phosphide) don guntun LED, waɗanda aka ƙera don fitar da haske a cikin bakan tsayin rawaya na Super Red. Na'urar tana da fuskar fuska mai launin toka tare da launin farin ɗigo, yana ba da babban bambanci na gani ga abubuwan da aka haskaka.

An rarraba nunin bisa ƙarfin haskensa, yana ba da damar zaɓin daidaiton haske a cikin raka'a da yawa. An ƙirƙira shi tare da daidaitattun lambobin haruffa na ASCII da EBCDIC, yana sa ya dace da haɗawa cikin tsarin dijital da yawa don nuna matsayi, saƙo mai sauƙi, ko karanta bayanai. Wani muhimmin siffa na injiniya shine ƙirar sa ta kwance mai iya tattarawa, yana ba da damar ƙirƙirar nunin haruffa da yawa ta hanyar jera raka'a da yawa a gefe.

2. Fassarar Maƙasudin Sigogi na Fasaha

2.1 Halayen Hoto da na Gani

An ayyana babban aikin gani a ƙarƙashin takamaiman yanayin gwaji a yanayin zafin muhalli (Ta) na 25°C.Matsakaicin Ƙarfin Hasken (Iv)an ƙayyade shi da mafi ƙarancin 1650 µcd, ƙimar al'ada na 3500 µcd, kuma babu iyakar iyaka da aka bayyana a cikin bayanan da aka bayar. Ana ɗaukar wannan ma'auni a ƙarƙashin yanayin tuƙi mai bugun jini na Ip=32mA tare da zagayowar aiki 1/16. Wannan aikin bugun jini daidaitaccen tsari ne don nunin da aka haɗa don cimma hasken da ake gani yayin sarrafa wutar lantarki da zafi.

TheMatsakaicin Tsayin Watsawa (λp)yawanci 639 nm ne, yana sanya fitarwa a cikin yankin ja na bakan gani.Matsakaicin Tsayin Watsawa (λd)an ƙayyade shi azaman 631 nm. Bambanci tsakanin kololuwa da tsayin rawaya, tare daRabin Faɗin Layin Bakan (Δλ)na 20 nm, yana bayyana tsaftar launi da yaduwar tsayin rawayan hasken da aka fitar. Ƙananan rabin faɗi yana nuna mafi ingantaccen fitarwa mai launi ɗaya (tsaftataccen launi). An ƙayyade ma'aunin daidaiton ƙarfin haske tsakanin ɗigogi a matsayin matsakaicin 2:1, yana tabbatar da daidaiton haske a cikin matrix ɗin nuni.

2.2 Halayen Lantarki

Sigogin lantarki suna ayyana iyakokin aiki da yanayi don na'urar.Ƙarfin Gaba (VF)kowane ɗigon LED yana tsakanin 2.0V zuwa 2.8V dangane da ƙarfin tuƙi. A daidaitaccen gwajin na'urar na IF=20mA, VF shine 2.0V (m), 2.6V (typ). A mafi girman ƙarfin bugun jini na IF=80mA, yana ƙaruwa zuwa 2.3V (m), 2.8V (typ).Ƙarfin Baya (IR)matsakaicin 100 µA ne lokacin da aka yi amfani da karkatar da baya na VR=5V, yana nuna halayen ɗigon LED.

2.3 Matsakaicin Ƙimar Cikakke da La'akari da Zafi

Waɗannan ƙimar suna ayyana iyakokin damuwa waɗanda sama da su lalacewa na dindindin na iya faruwa.Matsakaicin Rage Wutar Lantarki Kowane ɗigobai kamata ya wuce 70 mW ba.Matsakaicin Ƙarfin Gaba Kowane ɗigoyana iyakance zuwa 90 mA, yayin daMatsakaicin Ƙarfin Gaba Kowane ɗigoyana da ƙimar tushe na 15 mA a 25°C. Wannan matsakaicin ƙimar ƙarfin lantarki yana raguwa da layi ta 0.2 mA/°C yayin da yanayin zafi ya tashi sama da 25°C. Wannan raguwa yana da mahimmanci don sarrafa zafi, yana tabbatar da cewa zafin haɗin LED bai wuce iyakokin aminci ba yayin aiki. MatsakaicinƘarfin Baya Kowane ɗigoshine 5V. An ƙididdige na'urar donKewayon Zafin Aikina -35°C zuwa +85°C da kuma irin wannan kewayon don ajiya.

3. Bayanin Tsarin Rarraba

Takardar bayanin tana nuna cewa na'uraran rarraba ta don ƙarfin haske. Wannan yana nuna tsarin rarraba ko rarrabawa inda aka gwada raka'o'in da aka kera kuma aka haɗa su bisa ga ƙimar fitar da hasken da aka auna a ƙarƙashin daidaitattun yanayi. Wannan yana tabbatar da cewa masu ƙira za su iya zaɓar nunin tare da matakan haske masu daidaito, wanda ke da mahimmanci ga aikace-aikacen da ake amfani da nunin da yawa tare don guje wa bambance-bambance a ƙarfi. Ƙayyadaddun bayanan da aka bayar suna jera mafi ƙarancin ƙarfi da na al'ada, suna ayyana iyaka ta ƙasa da aikin da ake tsammani don wani rukunin da aka bayar.

4. Bincike kan Lanƙwasa Aiki

Takardar bayanin tana nuni gaLanƙwasa Halayen Lantarki/Gani na Al'ada. Duk da yake ba a yi cikakken bayani game da takamaiman zane-zane a cikin rubutun ba, irin waɗannan lanƙwasa da aka haɗa a cikin cikakkun takardun bayanai za su kwatanta alaƙa kamar ƙarfin gaba da ƙarfin gaba (lanƙwasa V-I), ƙarfin haske da ƙarfin gaba, ƙarfin haske da zafin muhalli, da rarraba bakan. Waɗannan lanƙwasa suna da mahimmanci ga masu ƙira don fahimtar halayen LED marasa layi. Misali, lanƙwasa V-I tana nuna alaƙar ma'auni, mai mahimmanci don ƙirar da'irar iyakance ƙarfin lantarki. Lanƙwasa zafin zai nuna yadda fitar da haske ke raguwa yayin da zafin haɗin ke ƙaruwa, yana sanar da buƙatun hura zafi.

5. Bayanin Injiniya da Kunshin

Na'urar ta zo a cikin takamaiman kunshin tare da ƙayyadaddun girma (duk a cikin milimita). Zanen da ke cikin takardar bayanin yana ba da mahimman bayyanannun jiki, wuraren ramukan hawa, da girman gaba ɗaya.Haɗin Filtebur yana da mahimmanci don haɗawa. Nunin yana amfani da tsarin fil 14 tare da haɗakar layukan anode da ginshiƙan cathode don magana matrix. Muhimman bayanan sun ƙayyade haɗin ciki: Fil 4 (Anode Column 3) da Fil 11 (Cathode Column 3) an haɗa su a ciki, kamar yadda Fil 5 (Cathode Row 4) da Fil 12 (Anode Row 4) suke. Wannan waya na ciki wani ɓangare ne na shimfidar matrix kuma dole ne a yi la'akari da shi a cikin ƙirar da'irar tuƙi. An ayyana polarity a fili ta hanyar sunan anode/cathode na kowane fil.

6. Jagororin Solder da Taro

Matsakaicin ƙimar cikakke ya haɗa da mahimmin sigar solder: na'urar na iya jurewazafin solder na matsakaicin 260°C na matsakaicin dakika 3, wanda aka auna a 1.6mm (1/16 inch) ƙasa da matakin wurin zama. Wannan yana ayyana ƙuntatawa na bayanin solder na sake kwarara. Wucewa wannan lokacin-zafin haɗin zai iya lalata haɗin wayoyi na ciki, guntun LED, ko kunshin filastik. Yadda ya kamata don guje wa fitar da wutar lantarki (ESD) shima ana nufin don na'urorin semiconductor, ko da yake ba a bayyana shi a fili a nan ba. Ajiya ya kamata ya kasance a cikin ƙayyadaddun kewayon zafin jiki na -35°C zuwa +85°C a cikin yanayi mai bushewa.

7. Bayanin Kunshin da Oda

An gano lambar sashi a fili a matsayinLTP-2157AKR. Al'adar suna mai yiwuwa tana bin tsarin lambobi na ciki inda "LTP" na iya nuna dangin samfur (matrix ɗigon LED), "2157" na iya shafi girman (2.0-inch, 5x7) da watakila launi, kuma "AKR" na iya nuna takamaiman rarrabawa, kunshin, ko cikakkun bayanai. Takardar bayanin kanta ana nuni da ita ta Spec No.: DS30-2001-251. Daidaitaccen kunshin don irin waɗannan nunin sau da yawa a cikin bututu masu hana wutar lantarki ko tire don kare fil ɗin da hana lalacewar ESD yayin jigilar kaya da sarrafawa.

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikacen Al'ada

Wannan nunin ya dace da aikace-aikacen da ke buƙatar karatun haruffa mai sauƙi, ƙarfi, da ƙarancin wutar lantarki. Amfanin al'ada ya haɗa da: alamomin matsayi na panel iko na masana'antu, nunin kayan aikin gwaji da ma'auni, musanya na'urar likita, kayan amfani na mabukaci (misali, tsofaffin tanda na microwave, tsarin sitiriyo), da musanya aikin tsarin da aka saka. Tattarawarsa yana ba da damar ƙirƙirar nunin lambobi da yawa don ƙidaya ko ƙididdiga.

8.2 La'akari da Ƙira

1. Da'irar Tuƙi: Ana buƙatar microcontroller tare da isassun fil ɗin I/O ko takamaiman mai tuƙi nunin (kamar MAX7219) don haɗa matrix 5x7. Da'irar dole ne ta ba da iyakancewar ƙarfin lantarki, yawanci ta hanyar resistors a cikin jerin kowane ginshiƙi ko layin layi.
2. Iyakar Ƙarfin Lantarki: Dole ne ƙira ta bi ƙimar matsakaicin cikakke na matsakaici da kololuwar ƙarfin lantarki. Yin amfani da haɗakar aikin 1/16 yana taimakawa wajen kiyaye matsakaicin wutar lantarki a cikin iyakoki yayin ba da damar mafi girman ƙarfin bugun jini don haske.
3. Gudanar da Zafi: Tabbatar da isassun iska idan ana aiki a manyan yanayin zafi, la'akari da abin da ya sa ƙarfin lantarki ya ragu da 0.2 mA/°C.
4. Software: Dole ne a adana bayanan font na haruffa don grid 5x7 a cikin ƙwaƙwalwar ajiyar tsarin sarrafawa kuma a fitar da su bisa ga lokacin haɗawa da takamaiman taswirar fil na LTP-2157AKR.

9. Kwatancen Fasaha

Idan aka kwatanta da tsofaffin fasahohi kamar daidaitattun LED ja na GaAsP (Gallium Arsenide Phosphide), fasahar AlInGaP da aka yi amfani da ita a cikin wannan nunin tana ba da ingantaccen ingantaccen haske sosai, yana haifar da fitarwa mai haske don irin wannan ƙarfin tuƙi. Hakanan yawanci yana ba da mafi kyawun kwanciyar hankali na zafin jiki da tsawon rayuwar aiki. Idan aka kwatanta da zamani na saman-mount 7-segment ko matrix nunin, wannan kunshin ta hanyar rami ya fi girma kuma yana buƙatar ƙarin taron hannu amma yana iya zama mafi ƙarfi a cikin yanayi mai girgiza kuma yana da sauƙin yin samfuri tare da shi. Tsayin haruffansa na 2.0-inch yana da girma sosai, yana ba da kyakkyawan gani daga nesa idan aka kwatanta da ƙananan nunin SMD.

10. Tambayoyin da ake yawan yi (Bisa Sigogi na Fasaha)

Q: Zan iya tuƙa wannan nunin tare da ƙarfin lantarki na DC a kowane ɗigo?
A: A'a. An ƙirƙira nunin don aikin haɗawa (bincike). Yin amfani da DC na dindindin ga duk ɗigogi zai wuce matsakaicin ƙimar rage wutar lantarki kowane ɗigo kuma mai yiwuwa ya haifar da zafi da gazawa.

Q: Wane ƙimar resistor mai iyakancewar ƙarfin lantarki yakamata in yi amfani da shi?
A: Ƙimar resistor ya dogara da ƙarfin tuƙin ku da ƙarfin lantarki da ake so. Misali, don cimma ƙarfin bugun jini na 20mA kowane ɗigo tare da samar da 5V da Vf na al'ada na 2.6V, za ku lissafta R = (5V - 2.6V) / 0.02A = 120 ohms. Yi amfani da matsakaicin Vf don ƙira mai aminci.

Q: Fil ɗin don layi na 4 da ginshiƙi na 3 an haɗa su a ciki. Ta yaya wannan ke shafar ƙirar ta?
A: Wannan haɗin ciki wani ɓangare ne na wayoyi na matrix. Dole ne ku bi teburin haɗin fil daidai. Software/hardware ɗin ku na tuƙi dole ne ya kunna daidaitaccen biyun fil na anode da cathode don haskaka takamaiman ɗigo, yana mutunta waɗannan hanyoyin haɗin ciki. Ba yana nufin ba za ku iya yin watsi da ɗaya daga cikin fil ɗin da aka haɗa ba; dabarar magana matrix ta dogara da cikakken saiti.

11: Amfanin Aiki na Aiki

Harka: Gina Ƙididdiga na Ƙididdiga na Lambobi 4.An jera nunin LTP-2157AKR guda huɗu a kwance. Ana amfani da microcontroller (misali, Arduino ko PIC) tare da fil ɗin I/O 20+. Firmware ɗin mai sarrafawa yana sarrafa haɗawa: yana zagayawa ta hanyar kunna ginshiƙi cathode ɗaya (ko saiti, dangane da wayoyi na ciki) a lokaci guda yayin aika bayanan layin anode don duk nunin huɗu da suka dace da lambobin da za a nuna. An sanya resistors masu iyakancewar ƙarfin lantarki akan layukan cathode gama gari. Software ɗin ya haɗa da teburin nemo don lambobi 0-9 kuma watakila colon don raba lokaci. Ƙididdiga yana ƙidaya ƙasa ko sama, yana sabunta bayanan haɗawa daidai. Manyan haruffa 2-inch suna sa allon maki ya zama mai sauƙin karantawa daga mita da yawa.

12. Gabatarwar Ka'ida

Na'urar tana aiki bisa ka'idartsarin LED mai iya magana matrix. Ana shirya LED ɗaya ɗaya a mahadar layukan anode 7 da ginshiƙan cathode 5 (ko akasin haka, bisa ga fitar fil). Don haskaka takamaiman ɗigo, ana tuƙa layin anode ɗinsa zuwa sama (ana ba shi da ƙarfin lantarki mai kyau ta hanyar iyaka), kuma ana tuƙa layin cathode ɗinsa zuwa ƙasa (ana jefa shi ƙasa). Ta hanyar bincika cikin sauri ta cikin ginshiƙai (ko layuka) da sabunta bayanan layi (ko ginshiƙi) a lokaci guda, dagewar hangen nesa yana haifar da tunanin ingantaccen hoto. Guntun LED na AlInGaP da kansu suna aiki bisa ka'idar electroluminescence a cikin semiconductor mai tazara kai tsaye, inda sake haɗuwar rami na electron yake sakin makamashi a cikin nau'in photons (haske) a tsayin rawaya da aka ƙaddara ta hanyar makamashin bandgap na kayan.

13. Trends na Ci gaba

Duk da yake nunin matrix ɗigon rami kamar LTP-2157AKR fasaha ce mai girma, fasahar LED ta asali tana ci gaba da haɓaka. Trends a cikin fasahar nuni masu dacewa da aikinta sun haɗa da: 1) Canji zuwakunshin na'urar mount na saman (SMD)don taron kai tsaye da ƙananan sawun ƙafa. 2) Karɓar ƙarin ingantattun kayan kamar InGaN don launuka daban-daban da mafi girman haske. 3) Haɗa mai tuƙi IC kuma wani lokacin ma microcontroller kai tsaye cikin tsarin nunin, ƙirƙirar nunin "hankali" waɗanda ke sadarwa ta hanyar musanya na sirri (I2C, SPI) maimakon buƙatar binciken matrix kai tsaye daga mai gida. 4) Tashin LED na kwayoyin halitta (OLED) da nunin sassauƙa don ƙarin zane-zane masu rikitarwa. Duk da haka, don sauƙi, babban haske, ƙarfi, da buƙatun nunin haruffa masu tsada a cikin tsarin masana'antu ko na gado, raka'o'in matrix LED daban-daban sun kasance mafita mai yiwuwa kuma amintacce.