Takardar Bayani na LTP-747KF LED Dot Matrix Display - Tsawon Lamba 0.7-inch (17.22mm) - AlInGaP Yellow Orange - Farashin Gaba 2.6V - Takardar Fasaha ta Turanci

1. Bayyani Game da Samfur

LTP-747KF ƙaramin kayan aiki ne mai inganci na nunin LED mai matrix 5 x 7. Babban aikinsa shine samar da fitar da haruffa da lambobi masu bayyanawa a cikin na'urorin lantarki da kayan aiki iri-iri. Babban falsafar ƙira ta ta'allaka ne kan samar da ingantaccen aikin gani tare da ƙarancin wutar lantarki da dogaro mai girma, wanda ya sa ya dace da haɗawa cikin kayan lantarki na mabukaci, fuskokin sarrafa masana'antu, kayan aikin ma'auni, da sauran aikace-aikacen da ke buƙatar nunin yanayi ko bayanai.

Matsayin mahimmanci na na'urar yana cikin daidaiton girmansa, haske, da inganci. Tsawon haruffa 0.7-inch (17.22mm) yana ba da kyakkyawar sulhu tsakanin iya karantawa da buƙatun sararin allo. Yin amfani da ci-gaban fasahar semiconductor na AlInGaP (Aluminum Indium Gallium Phosphide) don guntun LED ɗin sa na Yellow Orange, nunin yana samun babban ƙarfin haske da ingantaccen tsaftar launi kai tsaye daga kayan guntu, yana ba da gudummawa ga gabaɗayan aikin sa da tsawon rayuwa.

2. Zurfin Bincike na Ma'auni na Fasaha

2.1 Halayen Gani

An ayyana aikin gani ta wasu mahimman ma'auni da aka auna a ƙarƙashin daidaitattun yanayin gwaji (T_A=25°C).Matsakaicin Ƙarfin Hasken Gani (I_V)ya kewayo daga mafi ƙanƙanta na 630 µcd zuwa ƙimar al'ada na 1650 µcd lokacin da aka tuƙa shi da ƙarfin kololuwa (I_P) na 32mA a cikin zagayowar aiki 1/16. Wannan babban haske yana tabbatar da kyakkyawar gani ko da a cikin yanayi masu haske matsakaici.

An ƙayyade halayen launi ta tsawon zango.Tsawon Zango Mafi Girma (λ_p)yawanci 611 nm ne, yayin daTsawon Zango Mai Rinjaye (λ_d)yawanci 605 nm ne, yana ayyana launin Yellow Orange da ake gani.Rabin Faɗin Layin Spectral (Δλ)yawanci 17 nm ne, yana nuna kunkuntar bandwidth na spectral wanda ke ba da gudummawa ga jikewar launi. Ana auna ƙarfin hasken gani ta amfani da haɗin firikwensin da tacewa wanda ke kusanta da lanƙwasa amsawar ido na CIE photopic, yana tabbatar da cewa ƙimar suna da alaƙa da hangen nesa na ɗan adam.

2.2 Halayen Lantarki

Ma'auni na lantarki suna ayyana iyakokin aiki da yanayi don na'urar.Farashin Gaba kowane ɗigo (V_F)yawanci ya kewayo daga 2.05V zuwa 2.6V a ƙarfin gaba (I_F) na 20mA. Wannan ma'auni yana da mahimmanci don ƙirar da'irar iyakance ƙarfi.

TheƘarfin Baya kowane ɗigo (I_R)yana da matsakaicin ƙimar 100 µA lokacin da aka yi amfani da farashin baya (V_R) na 5V, yana nuna halayen ɗigon haɗin LED.Matsakaicin Daidaiton Ƙarfin Hasken Ganidon LED ɗin da ke cikin yanki mai haske iri ɗaya an ƙayyade shi a matsakaicin 2:1, wanda ke da mahimmanci don tabbatar da kamanni iri ɗaya a duk sassan harafin da aka nuna.

2.3 Matsakaicin Matsakaicin Ma'auni

Waɗannan ƙimar suna ayyana iyakokin damuwa waɗanda sama da su lalacewa na dindindin na iya faruwa. Ba don ci gaba da aiki ba ne.

• Matsakaicin Rage Wutar Lantarki kowane ɗigo:70 mW
• Ƙarfin Gaba Mafi Girma kowane ɗigo:60 mA
• Matsakaicin Ƙarfin Gaba kowane ɗigo:25 mA (an rage shi daga 25°C a 0.33 mA/°C)
• Farashin Baya kowane ɗigo:5 V
• Kewayon Zafin Aiki:-35°C zuwa +105°C
• Kewayon Zafin Ajiya:-35°C zuwa +105°C

3. Bayanin Tsarin Binning

Takardar bayani tana nuna cewa na'uraran rarrabe ta don ƙarfin haske. Wannan yana nuna tsarin binning inda ake rarraba sassan da aka kera (binning) bisa ga ƙimar hasken da aka auna. Kewayon ƙarfin da aka ƙayyade (Mafi ƙanƙanta: 630 µcd, Na al'ada: 1650 µcd) mai yiwuwa yana wakiltar yaduwa tsakanin bin daban-daban. Masu ƙira za su iya zaɓar takamaiman bin don tabbatar da daidaiton haske a cikin nunin da yawa a cikin samfur ko don biyan takamaiman buƙatun haske, ko da yake ba a cikakken bayanin tsarin lambar bin a cikin wannan takarda ba.

Duk da cewa ba a bayyana a sarari don tsawon zango ko farashin gaba a cikin wannan takardar bayani ba, irin wannan rarrabuwa ya zama ruwan dare a cikin masana'antar LED don rarraba sassan tare da daidaitattun halayen gani da na lantarki, masu mahimmanci don aikace-aikacen da ke buƙatar daidaiton launi ko haske.

4. Bincike na Lanƙwasa Aiki

Takardar bayani tana nuni zuwaLanƙwasa Halayen Lantarki/Gani na Al'ada. Duk da cewa ba a ba da takamaiman jadawali a cikin rubutun ba, irin waɗannan lanƙwasan da aka haɗa a cikin cikakkun takardun bayanai suna da mahimmanci don ƙira. Yawanci za su nuna:

• Ƙarfin Gaba vs. Farashin Gaba (Lanƙwasa I-V):Yana nuna alaƙar da ba ta da layi, yana taimakawa wajen tantance wurin aiki da kuma farashin tuƙi da ake buƙata don wani ƙayyadadden ƙarfi.
• Ƙarfin Hasken Gani vs. Ƙarfin Gaba:Yana nuna yadda fitar da haske ke ƙaruwa tare da ƙarfi, har zuwa wani mataki na jikewa ko samar da zafi mai yawa.
• Ƙarfin Hasken Gani vs. Yanayin Yanayi:Yana nuna raguwar fitar da haske yayin da zafin haɗin gwiwa ya tashi, wanda ke da mahimmanci don ƙirar sarrafa zafi.
• Rarraba Spectral:Wani jadawali na ƙarfin dangi vs. tsawon zango, yana tabbatar da gani da tsayin zango mafi girma da kuma faɗin spectral.

Waɗannan lanƙwasan suna ba da damar injiniyoyi su yi hasashen aiki a ƙarƙashin yanayin da ba daidai ba kuma su inganta da'irar tuƙi da ƙirar zafi.

5. Bayanin Injiniya da Marufi

LTP-747KF yana zuwa a cikin daidaitaccen kunshin nunin LED. Muhimman bayanan girma sun ƙayyade cewa duk girma yana cikin milimita, tare da juzu'in gabaɗaya na ±0.25 mm sai dai idan an faɗi in ba haka ba. Takamaiman juzu'i don canjin ƙarshen fil yana ±0.4 mm, wanda ke da mahimmanci don ƙirar sawun PCB da hanyoyin haɗawa ta atomatik.

Kunshin yana dafuska mai launin toka tare da fararen ɗigo, wanda ke haɓaka bambanci da inganta karatun haruffa ta hanyar rage hasken yanayi da aka nuna daga wuraren da ba su aiki ba. Zanen injiniya (wanda aka ambata amma ba a cikakken bayani a cikin rubutu ba) zai nuna daidaitattun girma, jirgin sama, tazarar jagora, da tsayin gabaɗaya.

6. Haɗin Fil da Da'irar Ciki

Na'urar tana da tsarin fil 12. Pinout kamar haka ne: Fil 1: Anode Column 1, Fil 2: Cathode Row 3, Fil 3: Anode Column 2, Fil 4: Cathode Row 5, Fil 5: Cathode Row 6, Fil 6: Cathode Row 7, Fil 7: Anode Column 4, Fil 8: Anode Column 5, Fil 9: Cathode Row 4, Fil 10: Anode Column 3, Fil 11: Cathode Row 2, Fil 12: Cathode Row 1.

Wannan tsari mai yawa (anode ginshiƙai 5, layuka na cathode 7) daidai yake don matrix 5x7. Yana ba da damar sarrafa LED ɗaiɗaiku 35 (ɗigo) tare da fil 12 kawai, yana rage rikitarwar haɗin kai sosai idan aka kwatanta da hanyar tuƙi kai tsaye. Jadawalin da'irar ciki zai nuna kowane ɗigon LED da aka haɗa tsakanin takamaiman ginshiƙin anode da layin cathode. Don haskaka wani ɗigo na musamman, dole ne a tuƙi layin anode ɗinsa daidai (tare da iyakance ƙarfi) yayin da ake ja layin cathode ɗinsa ƙasa.

7. Jagororin Solder da Taro

Takardar bayani tana ba da takamaiman yanayin solder:1/16 inch (kusan 1.6mm) ƙasa da jirgin sama na tsawon dakika 3 a 260°C. Wannan ma'auni ne mai mahimmanci don hanyoyin solder na igiyar ruwa ko solder na hannu don hana lalacewar zafi ga guntun LED ko kunshin filastik. Wucewa wannan zafin ko lokaci na iya haifar da ɓarkewar, fashewar epoxy, ko lalacewar aikin LED.

An kuma jaddada cewa zafin yanayi yayin haɗawa bai kamata ya wuce matsakaicin ƙimar zafin da aka ƙayyade a sashin Matsakaicin Matsakaicin Ma'auni ba. Kulawa daidai don guje wa fitar da wutar lantarki (ESD) kuma shine taka tsantsan na al'ada, ko da yake ba a bayyana shi a fili a nan ba, saboda LED ɗin na'urorin semiconductor ne.

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada

LTP-747KF ya dace da aikace-aikacen da ke buƙatar ƙanƙanta, ƙarancin wutar lantarki na lambobi ko iyakance karatun haruffa. Misalai sun haɗa da:

• Kayan Aikin Gwaji da Ma'auni:Na'urori masu auna lambobi da yawa, ƙididdiga na mitar, wadatar wutar lantarki don nuna ƙima.
• Kayan Lantarki na Mabukaci:Kayan aikin sauti (nunin matakin amplifier), kayan aikin dafa abinci (timer, zafin jiki).
• Sarrafa Masana'antu:Mita na panel, masu sarrafa tsari, nunin timer.
• Tsarin Haɗe:Alamomin yanayi don samfura ko allunan ci gaba.

8.2 Abubuwan Tunani na Ƙira

• Da'irar Tuƙi:Ana buƙatar microcontroller tare da isassun fil ɗin I/O ko takamaiman IC ɗin tuƙin LED tare da goyan bayan yawa. Dole ne direban ya samar da daidai ƙarfin kololuwa (misali, 20-32mA) a ƙayyadadden zagayowar aiki (misali, 1/16) don cimma ƙimar haske ba tare da wuce iyakokin matsakaicin ƙarfi ba.
• Iyakance Ƙarfi:Masu juriya na jerin gwano ko direbobi na ƙarfi akai-akai suna da mahimmanci ga kowane ginshiƙin anode ko kowane LED don saita ƙarfin gaba daidai da kare LED.
• Ƙimar Sabunta:Tsarin yawa yana buƙatar isassun mitar bincike (yawanci >100Hz) don guje wa kyan gani.
• Gudanar da Zafi:Ko da yake rage wutar lantarki yana da ƙasa kowane ɗigo, dole ne a yi la'akari da zafin gama gari daga ɗigo masu haske da yawa a cikin yanayi mai zafi. Ana iya buƙatar isasshen iska ko dumama don ci gaba da aiki mai haske.

9. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar daidaitattun LED na GaAsP ko GaP, amfani daAlInGaPkayan yana ba da fa'idodi masu mahimmanci:Mafi girman ingancin haske(ƙarin fitar da haske kowane mA na ƙarfi),mafi kyawun kwanciyar hankali na zafin jiki(ƙarancin raguwar ƙarfi tare da zafi), damafi girman dogaro na dogon lokaci. Ƙirar fuska mai launin toka/fararen ɗigo tana ba da mafi girman bambanci fiye da duk-jajayen ko koren fakitin, yana inganta karatun.

A cikin nau'in matrix 0.7-inch 5x7, manyan masu bambanta ga wannan ɓangaren za su kasance takamaiman binning ɗin sa na ƙarfin haske, ƙaramin farashin gaba na al'ada na AlInGaP, da kuma faɗin kewayon zafin aiki (-35°C zuwa +105°C), wanda ya wuce na yawancin nunin gama gari, yana mai da shi mai ƙarfi don yanayin masana'antu.

10. Tambayoyin da ake yawan yi (Bisa Ma'auni na Fasaha)

Q: Menene manufar ƙayyadaddun zagayowar aiki 1/16 don ƙarfin hasken gani?
A: Nunin yana amfani da yawa. Kowane ɗigo yana kunna wutar lantarki ne kawai na ɗan lokaci (1/16 a cikin wannan yanayin gwaji). Ana auna ƙarfin hasken gani yayin ɗan gajeren bugun jini na "kunna" (ƙarfin kololuwa). Matsakaicin hasken da ake gani yana da ƙasa. Wannan ƙayyadaddun yana ba da damar masu ƙira su ƙididdige ingantaccen fitar da haske na matsakaici.

Q: Shin zan iya tuƙa wannan nunin tare da ƙarfin DC akai-akai maimakon yawa?
A: A fasaha, i, amma ba shi da inganci sosai. Zai buƙaci tashoshi masu zaman kansu 35 masu iyakance ƙarfi maimakon layuka 12 masu yawa, yana ƙara rikitarwar da'ira da farashi sosai. Yawa shine hanyar da aka yi niyya kuma mafi kyau.

Q: Farashin gaba shine 2.6V matsakaici a 20mA. Shin zan iya kunna shi kai tsaye daga fil ɗin microcontroller na 3.3V?
A: A'a. Dole ne koyaushe kuna amfani da resistor mai iyakance ƙarfi na jerin gwano (ko da'irar ƙarfi akai-akai mai aiki). Haɗa shi kai tsaye zai yi ƙoƙarin jawo ƙarfi mai yawa, mai yuwuwar lalata duka LED da fil ɗin microcontroller. An ƙididdige ƙimar resistor kamar R = (V_wadata- V_F) / I_F.

Q: Me ake nufi da "Kunshin maras gubar (dangane da RoHS)"?
A: Yana nuna cewa na'urar ta bi ka'idar Ƙuntata Abubuwa masu haɗari. Kayan da aka yi amfani da su a cikin ginin sa, gami da solder plating akan jagororin, ba su ƙunshi haramtattun abubuwa kamar gubar, mercury, ko cadmium sama da iyakokin da aka yarda, yana mai da shi dacewa don siyarwa a kasuwanni masu ƙa'ida.

11. Misalin Ƙira da Amfani

Harka: Ƙirar Nunin Timer na Lamba Mai Sauƙi.Mai ƙira yana buƙatar nuna mintuna da dakika (MM:SS) akan samfur. Ana iya amfani da nunin LTP-747KF guda biyu don mintuna da biyu don dakika. Za a tsara microcontroller mai arha don sarrafa aikin lokaci. Tashoshin I/O ɗin sa za a haɗa su zuwa layukan anode da cathode na duk nunin huɗu ta hanyar masu juriya masu dacewa na iyakance ƙarfi. Firmware ɗin zai aiwatar da algorithm ɗin lokaci da kuma tsarin yawa wanda ke zagayawa cikin nunin huɗu da kuma sassan da suka dace na kowane lamba cikin sauri (misali, 200Hz). Fuskar launin toka na nunin zai tabbatar da kyakkyawan bambanci da akwatin samfurin. Mai ƙira zai zaɓi bin ɗin ƙarfin haske wanda ya dace da yanayin hasken yanayi da ake tsammani na amfani da timer.

12. Gabatar da Ƙa'idar Aiki

LTP-747KF yana aiki akan ainihin ƙa'idarDiode Mai Fitad da Hasken (LED)dararrabuwar lokaci. Kowane ɗayan ɗigo 35 a cikin grid 5x7 LED ɗin AlInGaP ne na musamman. Lokacin da aka yi wa gaba (farashin tabbatacce da aka yi amfani da shi ga anode dangane da cathode), electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki na semiconductor, suna sakin makamashi a cikin nau'in photons (haske) a tsawon zango da aka ƙaddara ta hanyar bandgap na kayan AlInGaP, yana haifar da hasken rawaya-lemu.

Tsarin yawa yana rage adadin fil ɗin sarrafa da ake buƙata. An haɗa anode na duk LED ɗin a cikin ginshiƙi a tsaye tare, kuma an haɗa cathode na duk LED ɗin a cikin layi a kwance tare. Ta hanyar kunna ginshiƙin anode ɗaya a lokaci ɗaya yayin da zaɓin ba da damar layukan cathode don ɗigo da ya kamata a haskaka a cikin wannan ginshiƙi, da kuma maimaita wannan zagayowar cikin sauri, an ƙirƙiri ruɗi na kwanciyar hankali, cikakken halin halitta. Dagewar hangen nesa na ɗan adam yana haɗa ɗigo ɗaiɗaiku masu walƙiya cikin sauri zuwa hoto mai ci gaba.

13. Trends na Fasaha

Duk da yake nunin LED ɗin matrix ɗin da ke ware kamar LTP-747KF sun kasance masu dacewa don takamaiman aikace-aikace saboda sauƙinsu, ƙarfi, da faɗin kallon, ana lura da yawancin trends. Akwai sauyi gabaɗaya zuwaƙungiyoyin nunin haɗewaɗanda suka haɗa da direban IC, mai sarrafawa, kuma wani lokacin ROM mai samar da haruffa, yana sauƙaƙe mu'amala don tsarin mai masaukin baki (misali, SPI, I2C).

Don fitar da haruffa,OLED (Organic LED)da ci-gabaLCDƙungiyoyi suna ba da ƙuduri mafi girma, cikakken iyawar zane, da ƙarancin wutar lantarki a wasu yanayin nunin tsayayye. Duk da haka, matrices na LED na al'ada suna riƙe da fa'idodi a cikin jurewar zafi mai tsanani, babban haske sosai don amfani da waje, da dogon lokacin dogaro inda ƙone pixel ko iyakacin rayuwa na iya zama damuwa ga wasu fasahohi. Ƙarƙashin fasahar guntu na LED na AlInGaP yana ci gaba da inganta, yana ba da inganci mafi girma kuma mafi daidaiton samar da launi.