Takardar Bayanin Fasaha na Nunin LED na 0.8-inch na Bakwai-Segment - Tsayin Lamba 20.32mm - Ƙarfin Wutar Gaba 2.6V - Launi Mai Zafi Ja - Takardar Fasaha ta Turanci

1. Bayyani Game da Samfur

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun bayanai don nunin fitilar diode mai haskakawa (LED) mai lamba guda, bakwai-segment. An ƙera na'urar don aikace-aikacen da ke buƙatar karanta lambobi masu haske da bayyananne. Babban fa'idodinta sun haɗa da bayyanar sashi mai ci gaba da daidaito don kyakkyawar karatun haruffa, ƙarancin amfani da wutar lantarki wanda ya sa ya dace da na'urorin da ke amfani da baturi, da faɗin kusurwar kallo don ganin daga wurare daban-daban. Nunin yana amfani da fasahar ƙwaƙƙwaran jiki, yana tabbatar da ingantacciyar aminci da tsawon rayuwar aiki. An rarrabe shi don ƙarfin haske, yana ba da daidaito a cikin haske a cikin rukunin samarwa, kuma ya dace kai tsaye da masu tuƙi na ƙwaƙƙwaran kewayawa (IC), yana sauƙaƙa ƙirar tsarin. An yi niyya don haɗa na'urar cikin na'urorin lantarki na mabukaci, kayan aikin masana'antu, kayan aikin gwaji, da kowane tsarin da ke buƙatar ƙaramin nunin lamba mai aminci.

2. Ƙayyadaddun Fasaha da Fassarar Manufa

2.1 Halayen Hoto da Na Gani

Nunin yana amfani da kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP) akan wani abu mai tushe na Gallium Arsenide (GaAs) mara bayyana don samar da fitarwa mai zafi Ja. Matsakaicin tsayin tsayin fitarwa (λp) shine nanometers 650 (nm) lokacin da aka tuƙa shi da wutar gaba (IF) na 20mA. An ƙayyade tsayin tsayin da ya fi rinjaye (λd) a 639 nm. Ramin rabin layin bakan (Δλ) shine 20 nm, yana nuna ƙaramin bandwidth na hasken da aka fitar wanda ke taimakawa wajen tsabtar launi. Matsakaicin ƙarfin haske (Iv) kowane sashi ya bambanta daga mafi ƙanƙanta na microcandelas 320 (μcd) zuwa matsakaicin 700 μcd lokacin da ake aiki da daidaitaccen gwajin wutar lantarki na 1mA. An ƙayyade ma'aunin daidaiton ƙarfin haske na 2:1 (matsakaici zuwa mafi ƙanƙanta), yana tabbatar da daidaiton haske mai ma'ana tsakanin sassuka daban-daban na lamba ɗaya.

2.2 Ma'auni na Wutar Lantarki

Matsakaicin ƙididdiga na cikakke yana bayyana iyakokin aiki waɗanda za su iya haifar da lalacewa na dindindin. Matsakaicin raguwar wutar lantarki na ci gaba kowane sashi shine milliwatts 70 (mW). Matsakaicin wutar gaba kowane sashi shine 90mA, amma wannan yana yiwuwa ne kawai a ƙarƙashin yanayin bugun jini tare da aikin 1/10 da faɗin bugun jini na 0.1ms. Ci gaba da wutar gaba kowane sashi an ƙididdige shi a 25mA a 25°C, tare da ƙimar raguwa na 0.33 mA/°C don yanayin zafi na muhalli (Ta) sama da 25°C. Wannan yana nufin ƙayyadaddun wutar lantarki na ci gaba yana raguwa yayin da zafin jiki ke ƙaruwa don hana zafi mai yawa. Matsakaicin ƙarfin wutar lantarki na baya da za a iya amfani da shi a kan sashi shine Volts 5 (V). A ƙarƙashin yanayin aiki na yau da kullun, ƙarfin wutar lantarki na gaba (VF) kowane sashi yana tsakanin 2.1V zuwa 2.6V lokacin da aka yi amfani da wutar lantarki na 10mA. Wutar lantarki ta baya (IR) tana iyakance ga matsakaicin microamperes 100 (μA) lokacin da aka yi amfani da ƙarfin wutar lantarki na baya (VR) na 5V.

2.3 Ƙayyadaddun Zafi da Muhalli

An ƙididdige na'urar don kewayon zafin aiki na -35°C zuwa +85°C. Wannan faɗin kewayon ya sa ya dace don amfani a cikin muhallin da ke fuskantar bambance-bambancen zafin jiki. Kewayon zafin ajiya iri ɗaya ne, daga -35°C zuwa +85°C. Don haɗawa, na'urar na iya jure zafin gishiri na 260°C na tsawon dakika 3, wanda aka auna 1/16 inch (kusan 1.59mm) ƙasa da matakin wurin zama na fakitin. Wannan ma'auni yana da mahimmanci don ayyana bayanin gishiri na sake kunnawa yayin haɗa allon kewayawa da aka buga (PCB).

3. Tsarin Rarrabawa da Rarrabuwa

Takardar bayanin samfur ta bayyana a sarari cewa na'urorin "An Rarrabe su don Ƙarfin Haskakawa." Wannan yana nuna tsarin rarrabawa inda ake rarrabe nunin bisa ga ƙimar hasken da aka auna a daidaitaccen gwajin wutar lantarki (yawanci 1mA kamar yadda halayen wutar lantarki suka nuna). Rarrabawa yana tabbatar da cewa abokan ciniki suna karɓar sassa masu daidaitattun matakan haske, wanda ke da mahimmanci ga aikace-aikacen da ake amfani da lambobi da yawa a gefe da gefe don guje wa bambance-bambancen ƙarfin da ake iya gani. Duk da yake ba a yi cikakken bayani game da lambobin kwandon ko kewayon a cikin wannan ɓangaren ba, matsakaicin kewayon ƙarfi na 320-700 μcd da ma'aunin 2:1 suna ba da kewayon aiki don wannan rarrabuwa.

4. Bincike na Lanƙwasa Aiki

Duk da yake ba a sake yin takamaiman zane-zane a cikin rubutun ba, takardar bayanin ta yi nuni ga "Yanayin Wutar Lantarki / Halayen Gani na Yau da Kullun." Waɗannan lanƙwaso suna da mahimmanci don cikakken aikin ƙira. Yawanci sun haɗa da:Wutar Gaba vs. Ƙarfin Wutar Gaba (Lanƙwasa I-V): Wannan jadawalin yana nuna alaƙar da ke tsakanin wutar lantarki da ke gudana ta LED da raguwar wutar lantarki a cikinta. Ba ta da layi kuma tana da mahimmanci don ƙirar da'irar iyakance wutar lantarki.Ƙarfin Haskakawa vs. Wutar Gaba (Lanƙwasa L-I): Wannan yana nuna yadda fitarwar haske ke ƙaruwa tare da ƙaruwar wutar tuƙi. Yana taimaka wa masu ƙira su zaɓi wurin aiki wanda ke daidaita haske tare da amfani da wutar lantarki da tsawon rayuwar na'urar.Ƙarfin Haskakawa vs. Yanayin Zafin Muhalli: Wannan lanƙwasa yana kwatanta yadda fitarwar haske ke raguwa yayin da zafin haɗin LED ke ƙaruwa. Fahimtar wannan raguwa yana da mahimmanci ga aikace-aikacen da ke aiki a yanayin zafi mai yawa.Rarraba Bakan: Zane na ƙarfin da ya dace da tsayin tsayi, yana nuna siffar bakan hasken da aka fitar, wanda ke tsakiya a kusa da kololuwar 650nm.

5. Bayanin Injiniya da Fakitin

5.1 Girman Jiki da Zane

An kwatanta na'urar a matsayin nunin tsayin lamba 0.8-inch, wanda yayi daidai da milimita 20.32. An ba da girman fakitin a cikin zane (wanda aka ambata amma ba a nuna a nan ba). Duk girmansun an ƙayyade su a cikin milimita, tare da daidaitattun ƙimar ƙima na ±0.25mm (ko ±0.01 inches) sai dai idan an lura da su. Wannan bayanin yana da mahimmanci don shimfidar PCB, yana tabbatar da cewa an ƙera sawun ƙafa da wuraren kiyayewa daidai.

5.2 Saitin Fil da Ƙarfin Wutar Lantarki

Nunin yana da tsarin fil 17. Shi nena'urar cathode gama gariirin, ma'ana an haɗa cathodes (tashoshi mara kyau) na duk sassan LED tare a ciki kuma an fitar da su zuwa takamaiman fil. Teburin haɗin fil yana jera aikin kowane fil:

• Fil 4, 6, 12, da 17: Cathode Gama Gari (CC). An ba da fil ɗin cathode da yawa, mai yiwuwa don mafi kyawun rarraba wutar lantarki da sarrafa zafi.
• Fil 2, 3, 5, 7, 10, 11, 13, 14, 15: Waɗannan su ne haɗin anode (tabbatacce) don sassuka ɗaya (A, F, E, L.D.P, R.D.P, D, C, G, B).
• Fil 1, 8, 9, 16: An jera waɗannan a matsayin "BABU FIL" (babu haɗi).

Sassuka sun haɗa da daidaitattun sassuka bakwai (A-G) tare da maki goma biyu: Maƙasudin Goma na Hagu (L.D.P akan fil 7) da Maƙasudin Goma na Dama (R.D.P akan fil 10).

5.3 Zanen Da'irar Ciki

Takardar bayanin ta haɗa da zanen da'irar ciki. Wannan zanen yana wakiltar gine-ginen cathode gama gari a zahiri, yana nuna yadda an keɓance anodes na kowane sashi (da maki goma) kuma an haɗa su da fil ɗinsu, yayin da duk cathodes ɗin aka haɗa su zuwa fil ɗin cathode gama gari.

6. Jagororin Gishiri da Haɗawa

Babban ma'auni na haɗawa da aka bayar shine ƙimar zafin gishiri. Na'urar na iya jure matsakaicin zafin jiki na 260°C na tsawon dakika 3, wanda aka auna a wuri 1/16 inch (1.59mm) ƙasa da matakin wurin zama na jikin fakitin. Wannan ƙimar daidaitacce ce don hanyoyin gishiri na sake kunnawa mara gubar. Dole ne masu ƙira da gidajen haɗawa su tabbatar da bayanin sake kunnawa ba su wuce wannan haɗin lokaci-zafin jiki ba don hana lalacewa ga guntu na LED na ciki, haɗin waya, ko kayan fakitin filastik. Dole ne a koyi daidaitattun hanyoyin sarrafa ESD (Fitar da Wutar Lantarki ta Electrostatic) yayin haɗawa, saboda LED suna da hankali ga wutar lantarki.

7. Shawarwarin Aikace-aikace

7.1 Yanayin Aikace-aikace na Yau da Kullun

Wannan nunin ya dace da kowane tsarin da aka saka da ke buƙatar lamba guda. Aikace-aikacen gama gari sun haɗa da: mitoci na panel don karatun wutar lantarki, wutar lantarki, ko zafin jiki; agogon dijital da na'urorin ƙidayar lokaci; allunan maki; allunan sarrafa kayan aikin gida (misali, tanda microwave, injunan wanki); kayan aikin gwaji da aunawa; da na'urorin mabukaci masu ɗaukar hoto inda ƙarancin amfani da wutar lantarki ke da fifiko.

7.2 Abubuwan Ƙira da Da'irar

Lokacin ƙirar da'irar tuƙi, waɗannan mahimman abubuwa suna da mahimmanci:Iyakance Wutar Lantarki: LED na'urori ne masu tuƙi na wutar lantarki. Dole ne a yi amfani da resistor mai iyakance wutar lantarki na jerin don kowane anode na sashi (ko tuƙi na yau da kullun na IC) don saita wutar gaba (misali, 10mA ko 20mA) da hana wutar lantarki mai yawa wanda zai lalata sashi. Ana ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (Vcc - VF) / IF, inda Vcc shine ƙarfin wutar lantarki, VF shine ƙarfin wutar gaba na LED (yi amfani da matsakaicin ƙimar 2.6V don aminci), kuma IF shine wutar gaba da ake so.Haɗawa da Yawa: Don nunin lambobi da yawa, ana yawan amfani da dabarar haɗawa da yawa inda ake haskaka lambobi ɗaya bayan ɗaya cikin sauri. Wannan nunin, tare da tsarin sa na cathode gama gari, ya dace da ƙirar haɗawa da yawa inda transistors ke canza cathodes.Kusurwar Kallo: Ƙayyadaddun faɗin kusurwar kallo yana nufin nunin yana ci gaba da karantawa ko da daga kusurwoyi masu kaifi, wanda ya kamata a yi la'akari da shi yayin ƙirar ɗakin injiniya.Gudanar da ZafiDuk da yake raguwar wutar lantarki ƙasa ce, bin lanƙwasa raguwar wutar lantarki a yanayin zafi mai yawa yana da mahimmanci don dogon lokacin aminci.

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

Q: Menene bambanci tsakanin tsayin tsayi da tsayin tsayi mafi rinjaye?

A: Tsayin tsayi (λp) shine tsayin tsayin da bakan fitarwa yake da ƙarfinsa mafi girma. Tsayin tsayi mafi rinjaye (λd) shine tsayin tsayi guda na hasken monochromatic wanda zai haifar da jin launi wanda ya fi dacewa da ainihin launin LED. Ga LED ja mai ƙunƙuntaccen bakan kamar wannan, sau da yawa suna kusa, amma λd shine ma'auni mafi dacewa da fahimta don launi.

Q: Zan iya tuƙa wannan nunin tare da samar da wutar lantarki 5V kai tsaye?

A: A'a. Ƙarfin wutar gaba kowane sashi kusan 2.6V ne kawai. Haɗa samar da wutar lantarki 5V kai tsaye zuwa sashi na LED ba tare da resistor mai iyakance wutar lantarki ba zai haifar da wutar lantarki mai yawa, kusan tabbas zai lalata sashi. Dole ne ka yi amfani da resistor na jerin ko tuƙi na yau da kullun.

Q: Me yasa akwai fil ɗin cathode gama gari huɗu?

A: Fil ɗin cathode da yawa suna taimakawa rarraba jimlar wutar lantarki ta dawowa (wanda shine jimlar wutar lantarki daga duk sassan da aka haskaka) a cikin fil ɗin da yawa da alamun PCB. Wannan yana rage yawan wutar lantarki a cikin kowane fil ko haɗin gishiri, yana inganta aminci kuma yana iya ba da damar yawan wutar haɗawa.

Q: Me yake nufi da "AlInGaP akan wani abu mai tushe na GaAs mara bayyana"?

A: Layukan da ke fitar da haske an yi su ne da AlInGaP. An girma wannan kayan akan wani abu mai tushe na GaAs (Gallium Arsenide). Abun tushe "ba ya bayyana," ma'ana ana fitar da haske da farko daga saman saman guntu. Wannan tsari ne na gama gari don LED ja da amber masu inganci.

9: Nazarin Shari'ar Ƙira da Amfani

Yi la'akari da ƙirar ma'aunin zafi na dijital mai sauƙi tare da nunin lamba guda don nuna zafin jiki a cikin daruruwan digiri na Celsius. Microcontroller yana karanta firikwensin zafin jiki, yana sarrafa bayanan, kuma yana buƙatar tuƙa nunin bakwai-segment. Ƙirar za ta ƙunshi: 1.Matsakaiciyar Microcontroller: Fil ɗin GPIO na MCU za a haɗa su zuwa anodes na sashi (A-G) ta hanyar resistors masu iyakance wutar lantarki (misali, 220Ω don samar da wutar lantarki 5V da ~10mA kowane sashi). 2.Tuƙin Cathode: Cathode gama gari guda ɗaya (ta amfani da ɗaya daga cikin fil huɗu, tare da haɗa sauran don ƙarfi) za a haɗa shi da ƙasa ta hanyar transistor NPN. MCU zai kunna wannan transistor don kunna lamba. 3.Maki Goma: Ana iya amfani da maƙasudin goma ɗaya don nuna rabin digiri, wanda wani fil na MCU ke tuƙa shi da nasa resistor. 4.Software: Lambar MCU za ta canza ƙimar zafin jiki zuwa daidaitaccen tsarin bit na 7-segment kuma ta fitar da shi zuwa fil ɗin GPIO, yayin da yake kunna transistor na cathode. Wannan da'irar mai sauƙi tana amfani da ƙarancin amfani da wutar lantarki na nunin da dacewar IC yadda ya kamata.

10. Gabatarwar Ka'idar Fasaha

Nunin LED na bakwai-segment tarin LED ɗaya ne wanda aka tsara a cikin tsarin adadi takwas. Kowane sashi (mai suna A zuwa G) LED daban ne. Ta hanyar haskaka takamaiman haɗin waɗannan sassuka, ana iya samar da duk lambobin goma (0-9) da wasu haruffa. Fasahar da ke ƙasa na kowane sashi na LED tana dogara ne akan haɗin p-n na semiconductor. Lokacin da aka yi amfani da ƙarfin wutar gaba wanda ya wuce ƙofar diode, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki (Layer AlInGaP a wannan yanayin), suna sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke ciki (AlInGaP) yana ƙayyade makamashin bandgap na semiconductor, wanda kai tsaye yana ayyana tsayin tsayi (launi) na hasken da aka fitar—a wannan yanayin, ja mai zafi. Tsarin cathode gama gari yana nufin duk LED suna raba tasha mara kyau ɗaya, wanda ake canzawa zuwa ƙasa don kunna lamba, yayin da ake sarrafa tashoshi tabbatacce ɗaya (anodes) don zaɓar waɗanne sassuka suka haskaka.

11. Trends na Fasaha da Mahallin

Nunin LED na bakwai-segment suna wakiltar fasahar nunin da ta girma kuma mai inganci sosai. Duk da yake sabbin fasahohi kamar OLEDs ko LCDs na dot-matrix suna ba da ƙarin sassauci don nuna zane-zane da haruffa, LED na bakwai-segment suna riƙe da fa'idodi masu ƙarfi a cikin takamaiman fage:Haskakawa Mai Girma da Bambanci: Ana iya karanta su cikin sauƙi a cikin hasken rana kai tsaye da yanayi mai duhu, sun fi yawan LCDs.Faɗin Kewayon Zafin Jiki: Yanayin ƙwaƙƙwaran jiki yana ba da damar aiki a cikin matsanancin zafin jiki inda LCDs za su iya kasawa.Sauƙi da Tsada Mai Tsada: Don aikace-aikacen da kawai ke buƙatar nuna lambobi, suna ba da matsakaici mai sauƙi da ƙarancin tsarin tsarin tsarin idan aka kwatanta da nunin zane-zane masu rikitarwa.Tsawon Rayuwa: LED suna da tsawon rayuwa mai tsayi lokacin da ake aiki a cikin ƙayyadaddun bayanai. Trend a cikin sashi da kansa yana zuwa ga mafi inganci (ƙarin fitarwar haske a kowace watt), wanda ke ba da damar ƙarancin amfani da wutar lantarki da rage samar da zafi, da kuma zuwa fakitin na'urar da aka ɗora a saman (SMD) don haɗawa ta atomatik, kodayake irin na hanyar rami kamar wannan yana ci gaba da zama sananne don ƙirar ƙira da wasu aikace-aikacen masana'antu. Amfani da kayan AlInGaP, kamar yadda aka gani a cikin wannan takardar bayanin, yana wakiltar ci gaba akan tsofaffin LED ja na tushen GaAsP, yana ba da mafi inganci da ingantaccen kwanciyar hankali na launi.