Takardar Bayanin Fasaha ta LTS-6775JD LED Display - Tsawon Lamba 0.56-inch - Hyper Red - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar Lantarki 70mW - Takardar Fasaha ta Turanci

1. Bayyani Game da Samfur

LTS-6775JD babban na'ura ne mai aiki mai ƙarfi, mai nuni na lamba ɗaya, mai sassa bakwai, wanda aka ƙera don aikace-aikacen da ke buƙatar karanta lambobi a sarari. Babban aikinsa shi ne ya nuna lambobi daga 0 zuwa 9, tare da maki goma, ta amfani da sassan LED daban-daban. An ƙera na'urar don amincin aiki da tsabtar bayani a cikin kayan aikin lantarki da na masu amfani daban-daban.

Nunin yana amfani da ci-gaban fasahar semiconductor na Aluminium Indium Gallium Phosphide (AlInGaP) don abubuwan da ke fitar da haske. An zaɓi wannan tsarin kayan musamman don samar da hasken ja mai inganci da ƙarfi. An ƙera ƙwayoyin akan wani abu na Gallium Arsenide (GaAs) marar gani, wanda ke taimakawa wajen inganta bambanci ta hanyar rage tarwatsa haske da kuma tunani a ciki. Bayyanar gani tana da fuskar fuska mai launin toka tare da alamomin sassa fari, yana ba da kyakkyawan bango don hasken ja da ake fitarwa, don haka yana haɓaka karantawa gabaɗaya da kyan gani.

1.1 Fa'idodi na Asali da Kasuwar da Ake Nufi

LTS-6775JD yana ba da fa'idodi daban-daban waɗanda suka sa ya dace da aikace-aikace iri-iri. Babban siffofinsa sun haɗa da tsawon lamba na 0.56 inches (14.22 mm), wanda ke ba da daidaito mai kyau tsakanin girma da ganuwa. An ƙera sassan su zama ci gaba da daidaito, yana tabbatar da bayyanar daidaitacce da ƙwararru idan aka haskaka. Na'urar tana buƙatar ƙarancin wutar lantarki don aiki, yana ba da gudummawa ga ƙirar tsarin mai inganci na makamashi. Tana ba da haske mai ƙarfi da fitarwa mai bambanci, wanda ke da mahimmanci don karantawa a ƙarƙashin yanayin hasken muhalli daban-daban. Bugu da ƙari, tana ba da kusurwar kallo mai faɗi, yana ba da damar ganin bayanan da aka nuna a sarari daga wurare daban-daban dangane da fuskar nuni.

Haɗin wadannan siffofi ya sa LTS-6775JD ya zama mai kyau don haɗawa cikin samfuran lantarki iri-iri. Kasuwarsa da ake nufi ta haɗa da, amma ba'a iyakance shi ba, kayan aikin gwaji da aunawa (misali, ma'aunin lantarki, ƙididdiga na mitar), kwamfutocin sarrafa masana'antu, nunin dashboard na mota, kayan amfani na masu amfani (misali, tanda microwave, agogon dijital), da na'urorin likitanci inda ake buƙatar nuni na lambobi mai tsabta, amintacce. Amintaccen aikin LED yana tabbatar da tsawon rayuwar aiki tare da ƙaramin kulawa.

2. Ma'auni na Fasaha: Fassarar Maƙasudi Mai zurfi

Aikin LTS-6775JD an ayyana shi ta hanyar saiti na ma'auni na lantarki da na gani. Fahimtar waɗannan ƙayyadaddun bayanai yana da mahimmanci don ƙirar da'ira daidai da tabbatar da ingantaccen aikin nuni.

2.1 Halayen Hoto da na Gani

Aikin gani shine tsakiyar aikin nuni. Babban ma'auni shine Matsakaicin Ƙarfin Hasken (Iv), wanda aka ƙayyade tare da mafi ƙarancin 320 µcd, ƙimar al'ada na 700 µcd, kuma ba a bayyana mafi girma ba lokacin da aka tuka tare da igiyar gaba (IF) na 1 mA. Ana ɗaukar wannan ma'auni ta amfani da firikwensin da tacewa wanda ke kusantar da madaidaicin amsawar idon ɗan adam (CIE), yana tabbatar da ƙimar tana da alaƙa da hasken da ake gani. Babban ƙarfin al'ada yana tabbatar da kyakkyawar ganuwa.

Halayen launi an ayyana su ta hanyar tsawon raƙuman ruwa. Tsawon Raƙuman Fitowa Mafi Girma (λp) yawanci shine 650 nanometers (nm), yana sanya fitarwa a cikin yankin hyper-red na bakan. Tsawon Raƙuman da Ya Fi Rinjaye (λd) an ƙayyade shi azaman 639 nm. Bambanci tsakanin kololuwa da tsawon raƙuman ruwa na al'ada ne ga LEDs kuma yana da alaƙa da siffar bakan fitarwa. Rabin Faɗin Layin Bakan (Δλ) shine 20 nm, yana nuna tsabtar bakan ko yaduwar tsawon raƙuman ruwa da ake fitarwa a kusa da kololuwa. Ana sa ran ɗan bambanci a cikin fitarwar haske tsakanin sassa; ana ƙididdige wannan ta hanyar Matsakaicin Daidaitawar Ƙarfin Hasken (IV-m), wanda aka ƙayyade a matsayin 2:1 mafi girma. Wannan yana nufin mafi haske ba zai fi mafi duhu sau biyu ba a ƙarƙashin yanayin tuƙi iri ɗaya, yana tabbatar da daidaito.

2.2 Ma'auni na Lantarki

Halayen lantarki suna ayyana hanyar haɗin kai tsakanin nuni da da'irar tuƙi. Ƙarfin Wutar Gaba kowane Sashe (VF) yawanci shine 2.1 Volts kuma yana da matsakaicin 2.6 Volts lokacin da aka yi amfani da igiyar gaba (IF) na 10 mA. Wannan ƙarfin wutar lantarki yana da ƙasa, wanda ke sauƙaƙa ƙirar samar da wutar lantarki. Juyawar Juyawa kowane Sashe (IR) an ƙayyade shi tare da matsakaicin 100 µA lokacin da aka yi amfani da juyawar wutar lantarki (VR) na 5 V, yana nuna matakin ɓarkewar lokacin da LED ba ta daidai ba.

2.3 Matsakaicin Matsakaicin Ƙimar da La'akari da Zazzabi

Waɗannan ƙimar suna ayyana iyakokin da za su iya haifar da lalacewa ta dindindin ga na'urar. Ba sharuɗɗan aiki na al'ada ba ne. Matsakaicin Ragewar Wutar Lantarki kowane Sashe shine 70 mW. Matsakaicin Igawar Gaba kowane Sashe shine 90 mA, amma wannan yana halatta ne kawai a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1 ms) don sarrafa zafi. Ci gaba da Igawar Gaba kowane Sashe an rage shi daga 25 mA a 25°C zuwa 0 mA a 100°C, tare da madaidaicin abin ragewa na 0.33 mA/°C. Wannan ragewa yana da mahimmanci ga amincin aiki, saboda yana hana zafin haɗin gwiwa ya wuce iyakokin aminci. Matsakaicin Juyawar Wutar Lantarki kowane Sashe shine 5 V. An ƙididdige na'urar don Kewayon Zafin Aiki na -35°C zuwa +85°C da kuma irin wannan kewayon don ajiya. Dole ne zafin solder bai wuce 260°C ba fiye da dakika 3, an auna 1.6 mm ƙasa da matakin wurin zama, don hana lalacewa yayin haɗawa.

3. Bayanin Tsarin Binning

Takardar bayanin da aka bayar tana nuna cewa na'urorin "An Rarraba don Ƙarfin Hasken." Wannan yana nuna tsarin binning ko rarrabuwa dangane da aunannen fitarwar haske. A cikin samar da LED na al'ada, ana gwada na'urorin daga rukunin samarwa kuma a rarraba su cikin "kwantena" daban-daban dangane da ma'auni masu mahimmanci kamar ƙarfin haske, ƙarfin wutar lantarki, kuma wani lokacin tsawon raƙuman ruwa. Duk da yake ba a ƙididdige takamaiman lambobin kwantena ko kewayon a cikin wannan takarda ba, aikin yana tabbatar da cewa abokan ciniki za su iya zaɓar sassa tare da aikin daidaitacce don aikace-aikacen da aka bayar. Ga LTS-6775JD, babban ma'aunin binning ya bayyana shine ƙarfin haske, yana ba da garantin mafi ƙarancin matakin haske kamar yadda aka ƙayyade a cikin tebur na halayen lantarki/na gani.

4. Bincike na Lanƙwasa Aiki

Duk da yake ba a sake yin takamaiman jadawali a cikin rubutun ba, takardar bayanin tana nuni ga "Madaidaicin Lantarki / Halayen Halayen Gani." Waɗannan lanƙwasa suna da mahimmanci don aikin ƙira mai zurfi. Yawanci, irin wannan takardar bayanin za ta haɗa da:

• Dangantakar Ƙarfin Hasken da Igawar Gaba (Lanƙwasa I-V):Wannan jadawali yana nuna yadda fitarwar haske ke ƙaruwa tare da igiyar tuƙi. Yawanci ba a layi daya ba, tare da inganci sau da yawa yana raguwa a cikin igiyoyi masu yawa saboda tasirin dumama.
• Ƙarfin Wutar Gaba da Igawar Gaba:Wannan yana nuna halayen I-V na diode, mai mahimmanci don ƙirar da'irorin iyakance igiyar ruwa.
• Dangantakar Ƙarfin Hasken da Zafin Muhalli:Wannan lanƙwasa yana nuna yadda fitarwar haske ke raguwa yayin da zafin muhalli (kuma saboda haka haɗin gwiwa) ya tashi. Fahimtar wannan ragewa yana da mahimmanci ga aikace-aikacen da ke aiki a cikin yanayi mai zafi.
• Rarraba Bakan:Wani makircin da ke nuna ƙarfin hasken da aka fitar a tsawon raƙuman ruwa daban-daban, a tsakiya a kusa da kololuwar 650 nm, tare da faɗin da aka ayyana ta ƙayyadaddun rabin faɗin 20 nm.

Masu ƙira yakamata su tuntuɓi waɗannan lanƙwasa don inganta igiyar tuƙi don hasken da ake so yayin kiyaye inganci da tsawon rai, da kuma lissafin canje-canjen aiki a cikin kewayon zafin aiki da ake nufi.

5. Bayanin Injiniya da Kunshin

LTS-6775JD yana zuwa a cikin daidaitaccen kunshin nunin LED. Zanen Girman Kunshin yana ba da ma'auni mai mahimmanci na jiki don ƙirar sawun PCB da haɗin kai na akwati. Duk girmansu ana ba da su a cikin millimeters tare da daidaitaccen haƙuri na ±0.25 mm sai dai idan an lura da haka. Ma'auni masu mahimmanci sun haɗa da tsayin gabaɗaya, faɗi, da zurfin kunshin, tazarar tsakanin ƙafafun, diamita da matsayin lamba akan fuska, da nisa daga matakin wurin zama. Daidaitaccen fassarar wannan zanen yana da mahimmanci don ƙirar shimfidar PCB daidai da tabbatar da cewa nuni ya dace daidai a cikin haɗin samfurin ƙarshe.

5.1 Tsarin Ƙafafu da Gano Polariti

Na'urar tana da tsarin ƙafafu 10 (Ƙafa 10 an lura da ita azaman "Babu Haɗin kai"). An saita shi azamanAnode Gama Garinuni. Wannan yana nufin anodes (tashoshi masu kyau) na sassan LED da yawa an haɗa su tare a ciki. A cikin wannan takamaiman na'urar, zanen da'ira na ciki da tebur haɗin ƙafa sun nuna yadda an shirya anodes da cathodes don sassa bakwai (A, B, C, D, E, F, G), maki goma (DP), da alamun ƙari/rage. An haɗa nodes na anode gama gari zuwa ƙafafu 2, 4, 7, da 8 don rukunin sassa daban-daban. Cathodes na kowane sashe an haɗa su da ƙafafunsu masu dacewa. Don haskaka wani sashe, dole ne a tuka ƙafar cathode ɗin da ya dace ƙasa (an haɗa shi da ƙasa ko magudanar ruwa) yayin da ƙafar anode gama gari mai dacewa aka tuka sama (an haɗa shi da samar da wutar lantarki ta hanyar resistor mai iyakance igiyar ruwa). Teburin fitar ƙafa shine ma'anar ma'anar don ƙirar da'irar tuƙi.

6. Jagororin Solder da Haɗawa

Daidaitaccen sarrafawa yayin haɗawa yana da mahimmanci ga amincin aiki. Babban jagora da aka bayar shine don tsarin solder: matsakaicin zafin solder da aka yarda shine 260°C, kuma bai kamata a yi amfani da wannan zafin ba fiye da dakika 3. Ana ɗaukar wannan ma'auni a wani wuri 1.6 mm (1/16 inch) ƙasa da matakin wurin zama na na'urar akan PCB. An ƙera wannan ƙayyadaddun don hana lalacewar zafi ga ƙwayoyin LED, igiyoyin haɗin ciki, da kayan kunshin filastik. Don solder ko sake kwararar solder, dole ne a sarrafa bayanin martabar zafi gabaɗaya (dumama, jiƙa, sake kwarara, sanyaya) don tsayawa cikin waɗannan iyakokin. Solder na hannu tare da ƙarfe yana buƙatar fasaha mai hankali don guje wa dumama na gida. Kewayon zafin ajiya shine -35°C zuwa +85°C; yakamata a ajiye na'urori a cikin yanayi mai bushewa, amintacce na tsaye kafin amfani.

7. Shawarwarin Aikace-aikace

7.1 Da'irorin Aikace-aikace na Al'ada

LTS-6775JD, kasancewar nuni na anode gama gari, yawanci microcontroller ko takamaiman mai tuƙi na nuni (kamar BCD-zuwa-7-sashe decoder/mai tuƙi) ne ke tuka shi. An haɗa ƙafafun anode gama gari zuwa layin samar da wutar lantarki mai kyau (Vcc), kowanne ta hanyar resistor mai iyakance igiyar ruwa idan ba a yi amfani da haɗakarwa ba. Idan aka haɗa lambobi da yawa, ana sauya anodes gama gari ta transistors. An haɗa ƙafafun cathode na kowane sashe zuwa fitarwar mai tuƙi, waɗanda ke zubar da ruwa zuwa ƙasa. Ana ƙididdige ƙimar resistor mai iyakance igiyar ruwa ta amfani da dabara: R = (Vcc - VF) / IF, inda VF shine ƙarfin wutar lantarki na sashe (yi amfani da ƙimar matsakaici don ƙirar mafi munin yanayi, misali, 2.6V) kuma IF shine igiyar gaba da ake so (misali, 10 mA don haske na al'ada). Don samar da 5V: R = (5V - 2.6V) / 0.01A = 240 Ohms. Daidaitaccen resistor na 220 ko 270 Ohm zai dace.

7.2 La'akari da Bayanin Ƙira

• Iyakance Igawa:Koyaushe yi amfani da resistors na iyakance igiyar ruwa na waje. Tuka LEDs kai tsaye daga tushen wutar lantarki ko ƙafar microcontroller ba tare da resistor ba zai haifar da wuce gona da iri, yana haifar da gazawar nan take ko rage tsawon rai sosai.
• Haɗakarwa:Don sarrafa lambobi da yawa tare da ƙananan ƙafafun I/O, ana amfani da haɗakarwa. Wannan ya haɗa da saurin zagayawa da wutar lantarki zuwa anode gama gari na kowane lamba yayin gabatar da bayanan sashe masu dacewa akan layukan cathode da aka raba. Dagewar gani yana sa duk lambobi su bayyana suna haskakawa lokaci ɗaya. Matsakaicin igiyar ruwa yayin ɗan gajeren lokacin KUNNA zai iya zama mafi girma fiye da ƙimar DC, amma matsakaicin igiyar ruwa bai kamata ya wuce ƙimar ci gaba da igiyar gaba ba, la'akari da aikin aiki.
• Kusurwar Dubawa:Faɗin kusurwar kallo yana da fa'ida, amma don mafi kyawun karantawa, yakamata a juya nuni don hanyar kallo ta farko ta kasance kusan daidai da fuskar sa.
• Kariya ta ESD:Duk da yake ba a bayyana shi a sarari ba, LEDs suna da hankali ga zubar da wutar lantarki (ESD). Yakamata a kiyaye matakan kariya na ESD na al'ada yayin haɗawa.

8. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar incandescent ko nunin fluorescent na vacuum (VFDs), LTS-6775JD yana ba da fa'idodi masu mahimmanci: ƙarancin amfani da wutar lantarki, mafi girman amincin aiki (babu filament da zai ƙone), saurin amsawa mafi sauri, da mafi kyawun juriya ga girgiza/girgiza. A cikin sashin nunin LED, amfani da fasahar AlInGaP don hyper-red yana ba da inganci mafi girma da yuwuwar ingantaccen kwanciyar hankali na launi akan lokaci da zafin jiki idan aka kwatanta da tsofaffin GaAsP ko GaP ja LEDs. Tsawon lamba 0.56-inch ya sanya shi a cikin rukunin girma na gama gari, yana gogayya da wasu nunin iri ɗaya da farko akan ƙayyadaddun bayanai kamar haske (ƙarfin haske), ƙarfin wutar lantarki (wanda ke shafar ƙirar samar da wutar lantarki), kusurwar kallo, da ingancin kunshin gabaɗaya/amincin aiki.

9. Tambayoyin da ake yawan yi (Dangane da Ma'auni na Fasaha)

Q: Menene manufar "alamar ƙari" da "alamar ragewa" cathodes (ƙafafu 9 da 1)?
A: Waɗannan sassan LED ne na musamman don nuna alamar "+" ko "-", yawanci ana amfani da su don nuna polariti (misali, don karatun ma'aunin lantarki) ko alamar ƙimar lamba. Ana sarrafa su daban daga manyan sassan lambobi.

Q: Zan iya tuka wannan nuni tare da tsarin microcontroller na 3.3V?
A: Ee, amma dole ne ka sake ƙididdige resistor mai iyakance igiyar ruwa. Amfani da VF na al'ada na 2.1V da IF da ake nufi na 10 mA: R = (3.3V - 2.1V) / 0.01A = 120 Ohms. Ƙarancin wutar lantarki yana ba da ƙarancin sararin sama, don haka daidaiton haske na iya zama mafi hankali ga bambance-bambance a cikin VF.

Q: Matsakaicin igiyar ruwa mai ci gaba shine 25 mA a 25°C. Zan iya gudanar da shi a 20 mA don mafi girman haske?
A: Duk da yana yiwuwa, aiki kusa da matsakaicin ƙimar matsakaicin yana rage tazarar ƙira kuma yana iya shafar amincin aiki na dogon lokaci, musamman idan zafin muhalli yana da zafi. Gabaɗaya mafi kyawun aiki ne a yi aiki a ko ƙasa da yanayin gwaji na al'ada na 10 mA don daidaita haske, inganci, da tsawon rai.

Q: Me "Anode Gama Gari" ke nufi ga ƙirar da'irata?
A: Yana nufin ka samar da wutar lantarki zuwa ƙafar gama gari (s) kuma ka zubar da ruwa daga ƙafafun sashe don kunna su. Da'irar mai tuƙi (microcontroller, driver IC) dole ne a saita shi don zubar da ruwa (samar da ƙananan matakin dabaru ko haɗin ƙasa) don kunna wani sashe.

10. Ka'idojin Aiki

Babban ka'idar da ke tattare da LTS-6775JD shine electroluminescence a cikin haɗin p-n semiconductor, musamman ta amfani da kayan AlInGaP. Lokacin da aka yi amfani da ƙarfin wutar lantarki da ya wuce ƙarfin kunna diode (kusan 2.1V), electrons daga yankin n-type da ramuka daga yankin p-type ana shigar da su cikin yankin aiki inda suke sake haɗuwa. A cikin semiconductor mai kai tsaye kamar AlInGaP, wani ɓangare mai mahimmanci na wannan taron sake haɗuwa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin yadudduka na AlInGaP yana ƙayyade ƙarfin bandgap, wanda kuma yana ƙayyade tsawon raƙuman ruwa (launi) na hasken da aka fitar—a wannan yanayin, hyper-red a kusan 650 nm. Kowanne daga cikin sassa bakwai (A-G) da maki goma wani LED ne daban ko rukuni na ƙwayoyin LED, an haɗa su a ciki bisa ga zanen da'ira. Ta hanyar zaɓin amfani da wutar lantarki ga waɗannan sassa daban-daban, an kafa tsarin don takamaiman lamba (0-9) ko hali.