Takardar Bayanin Fasaha ta LTS-4301SW LED Display - Tsawon Lamba 0.4-inch - Fararen Sassa - Fuskar Baƙi - Common Cathode - Takardar Fasaha ta Hausa

1. Bayanin Samfur

LTS-4301SW na'urar nuni ce ta lamba ɗaya mai sassa bakwai, wacce aka tsara don aikace-aikacen da ke buƙatar nuna lambobi da haruffa a sarari da haske. Aikin ta na asali shine nuna lambobi 0-9 da wasu haruffa ta hanyar kunna sassanta bakwai na LED daban-daban (wanda aka yiwa lakabi A zuwa G) da ma'aunin goma na zaɓi (D.P.). An gina na'urar ta amfani da ƙananan ƙwayoyin LED na farin InGaN (Indium Gallium Nitride), waɗanda aka ɗora a bayan abin rufe fuska don samar da sassan haruffa. Nunin yana da fuskar baƙi, wanda ke ba da tushen bambanci mai girma ga fararen sassan da aka kunna, yana ƙara karantawa sosai a ƙarƙashin yanayi daban-daban na haske. Wannan haɗin yana da tasiri musamman a aikace-aikacen da karantawa daga nesa ko cikin hasken yanayi ke da muhimmanci.

Babban fa'idodin wannan na'urar nuni sun haɗa da kyakkyawan bayyanar haruffa, wanda aka samu ta hanyar ci gaba da sassa iri ɗaya waɗanda ke haifar da siffar lamba mai haɗaka. Tana ba da fitar da haske mai ƙarfi, tare da matsakaicin ƙarfin haske na yau da kullun har zuwa 28,000 mcd a kowace ƙwaya a ƙarƙashin daidaitattun yanayin gwaji, yana tabbatar da ganuwa ko da a cikin wurare masu haske sosai. Faɗin kusurwar kallo na digiri 130 (2\u03c6_1/2) yana ba da damar karantawa a sarari daga wuraren da ba a kan axis ba, yana mai da shi dacewa da ma'aunin panel, kayan aikin gwaji, kayan masarufi, da kuma panel ɗin sarrafa masana'antu inda kusurwar kallo bazai kasance kai tsaye ba. Bugu da ƙari, ƙarancin buƙatun wutar lantarki a kowane sashe yana ba da gudummawa ga ƙirar ingantaccen amfani da makamashi.

1.1 Fassarar Maƙasudin Ma'auni na Fasaha

1.1.1 Halayen Hoto da Na Gani

Babban ma'auni na hoto shine Matsakaicin Ƙarfin Hasken (I). Ga ƙananan ƙwayoyin farin InGaN da aka yi amfani da su, ƙimar yau da kullun ita ce 28,000 millicandelas (mcd) lokacin da aka tuka a cikin halin yanzu na gaba (I) na 10 mA. Mafi ƙarancin ƙimar da aka ƙayyade shine 13,700 mcd. Ana auna wannan ma'auni ta amfani da haɗin firikwensin da tacewa wanda ke kusantar da lanƙwasa amsawar ido na CIE photopic, yana tabbatar da hasken da aka ruwaito yana da alaƙa da hangen nesa na ɗan adam. Faɗin kusurwar kallo na digiri 130 an ayyana shi azaman cikakken kusurwar da ƙarfin haske ya ragu zuwa rabin ƙimar kololuwar sa (akan-axis). Wannan ƙayyadaddun yana da mahimmanci don tantance madaidaicin mazugi na kallo ga mai amfani na ƙarshe._V). For the white InGaN chips used, the typical value is 28,000 millicandelas (mcd) when driven at a forward current (I_F) of 10 mA. The minimum specified value is 13,700 mcd. This parameter is measured using a sensor and filter combination that approximates the CIE photopic eye-response curve, ensuring the reported brightness correlates with human visual perception. The wide 130-degree viewing angle is defined as the full angle at which the luminous intensity drops to half of its peak value (on-axis). This specification is crucial for determining the effective viewing cone for the end-user.

An ba da ma'auni na launi kamar x=0.294 da y=0.286 (wanda aka auna a I=5mA). Waɗannan ma'auni a kan jadawalin launi na CIE 1931 suna ayyana farin wurin hasken da aka fitar. Ƙimar da aka bayar tana nuna yanayin zafi mai sanyi na farin launi. An ƙayyade Matsakaicin Daidaitawar Ƙarfin Hasken don yankuna masu haske iri ɗaya a matsayin 2:1 mafi girma. Wannan yana nufin bambancin haske tsakanin mafi ƙarancin haske da mafi haske na sashe/ƙwaya a ƙarƙashin yanayin tuƙi iri ɗaya bai kamata ya wuce sau biyu ba, yana tabbatar da bayyanar lambar da aka haskaka iri ɗaya._F=5mA). These coordinates on the CIE 1931 chromaticity diagram define the white point of the emitted light. The provided values suggest a cool white color temperature. Luminous Intensity Matching Ratio for similar light areas is specified as 2:1 maximum. This means the brightness difference between the dimmest and brightest segment/chip under identical drive conditions should not exceed a factor of two, ensuring uniform appearance of the illuminated digit.

1.1.2 Ma'auni na Lantarki

Ƙarfin lantarki na gaba (V) a kowane ƙwayar LED yawanci yana auna 3.15V, tare da kewayon daga 2.70V zuwa 3.15V a gwajin naɓewa na 5 mA. Dole ne masu ƙira su yi la'akari da wannan raguwar ƙarfin lantarki lokacin da suke ƙirar da'irar tuƙi. Halin yanzu na baya (I) an ƙayyade shi a matsakaicin 10 \u00b5A lokacin da aka yi amfani da bambance-bambancen baya na 5V, yana nuna halayen ɗigon LED._F) per LED chip typically measures 3.15V, with a range from 2.70V to 3.15V at a test current of 5 mA. Designers must account for this voltage drop when designing the driving circuitry. The Reverse Current (I_R) is specified at a maximum of 10 \u00b5A when a reverse bias of 5V is applied, indicating the leakage characteristic of the LED junction.

Matsakaicin Matsakaicin Ƙimar Ƙimar yana ayyana iyakokin aiki. Ci gaba da Halin yanzu na Gaba a kowane sashe shine 20 mA a 25\u00b0C, tare da ƙimar raguwa na 0.25 mA/\u00b0C. Wannan yana nufin halin yanzu na ci gaba da halatta yana raguwa a layi daya yayin da yanayin yanayi (T) ya tashi sama da 25\u00b0C don hana lalacewa mai zafi. Misali, a 85\u00b0C, matsakaicin halin yanzu na ci gaba zai kasance 20 mA - ((85-25) * 0.25 mA) = 5 mA. Matsakaicin Halin yanzu na Gaba, wanda ya dace da aikin bugun jini (1 kHz, 10% aikin aiki), shine 60 mA. Matsakaicin Ragewar Wutar Lantarki a kowane sashe shine 115 mW._a) rises above 25\u00b0C to prevent thermal damage. For example, at 85\u00b0C, the maximum continuous current would be 20 mA - ((85-25) * 0.25 mA) = 5 mA. The Peak Forward Current, applicable for pulsed operation (1 kHz, 10% duty cycle), is 60 mA. The maximum Power Dissipation per segment is 115 mW.

1.1.3 Ƙayyadaddun Zafi da Muhalli

An ƙididdige na'urar don Kewayon Yanayin Zafi na Aiki daga -35\u00b0C zuwa +105\u00b0C. Kewayon Yanayin Ajiya iri ɗaya ne. Waɗannan faɗin kewayon suna nuna ƙarfi don amfani a cikin yanayin da ke fuskantar bambance-bambancen zafi mai mahimmanci. Yanayin gishiri an ƙayyade shi azaman 260\u00b0C na dakika 3, wanda aka auna 1/16 inch (kusan 1.6 mm) a ƙasan matakin wurin zama na kayan. Yin biyayya ga wannan bayanin yana da mahimmanci yayin haɗin PCB don hana lalacewa ga ƙananan ƙwayoyin LED ko fakitin filastik daga zafi mai yawa.

1.2 Bayanin Injiniya da Marufi

Nunin yana da tsayin lamba na 0.4 inches (10.0 mm). An ba da girman fakitin a millimita. Muhimman bayanan injiniya sun haɗa da: duk ƙimar ƙididdiga na \u00b10.25 mm sai dai idan an ƙayyade su, kuma ƙimar canjin ƙugiya ita ce +0.4 mm, wanda ke nufin izinin kuskuren ƙarshen ƙugiya. Na'urar tana amfani da tsarin cathode na gama gari. Wannan yana nufin duk cathodes (tashoshi marasa kyau) na LED ɗin sassa daban-daban an haɗa su a ciki zuwa ƙugiya ɗaya ko biyu na gama gari (ƙugiya 3 da 8), yayin da kowane anode na sashe (tabbataccen tashoshi) yana da nasa ƙugiya na musamman. Wannan tsarin yawanci yana sauƙaƙa haɗakarwa a cikin nunin lambobi da yawa kuma zai iya rinjayar zaɓin direba IC.

1.2.1 Haɗin Ƙugiya da Da'irar Ciki

Pinout kamar haka ne: Pin 1: Anode G, Pin 2: Anode F, Pin 3: Common Cathode, Pin 4: Anode E, Pin 5: Anode D, Pin 6: Anode D.P. (Decimal Point), Pin 7: Anode C, Pin 8: Common Cathode, Pin 9: Anode B, Pin 10: Anode A. Lura cewa akwai ƙugiyoyin cathode gama gari guda biyu (3 da 8), waɗanda aka haɗa su a ciki. Wannan ƙirar ƙugiya biyu tana taimakawa wajen rarraba halin yanzu kuma tana iya inganta amincin. Jadawalin da'irar ciki yana nuna kowane LED takwas (sassa bakwai da ma'aunin goma) tare da anode ɗin sa an haɗa shi da ƙugiyar da ta dace kuma duk cathodes sun haɗa su tare zuwa ƙugiyoyin cathode na gama gari.

1.3 Jagororin Gishiri da Taro

Hanyar taro ta farko ita ce gishiri mai sake kunnawa. Takardar bayanin tana ba da shawarar bayanin sake kunnawa, yana ƙayyade matsakaicin zafin jiki na 260\u00b0C. Ma'auni mai mahimmanci shine cewa zafin jiki a jikin kayan bai kamata ya wuce matsakaicin ƙimar zafin jiki yayin haɗawa ba. Yanayin ya bayyana a sarari gishiri a 260\u00b0C na dakika 3 lokacin da aka auna a wani wuri 1/16 inch a ƙasan matakin wurin zama. Wannan jagora yana da mahimmanci ga injiniyoyin tsari don saita saurin injin sake kunnawa da yankunan zafin jiki daidai don guje wa girgizar zafi ko lalacewar kayan yayin tabbatar da haɗin gishiri mai aminci.

1.4 Shawarwarin Aikace-aikace

1.4.1 Yanayin Aikace-aikace na Yau da Kullun

Wannan nunin yana da kyau ga kowane na'urar da ke buƙatar karatun lamba ɗaya mai tsabta. Aikace-aikacen gama gari sun haɗa da: ma'aunin panel don ƙarfin lantarki, halin yanzu, ko zafin jiki; na'urorin ƙidayar lokaci da ƙidayawa; kayan masarufi na gida kamar tanda, microwave, ko injin wanki; kayan aikin gwaji da aunawa; panel ɗin sarrafa masana'antu; da na'urorin likita. Babban bambanci da haske sun sa ya dace da aikace-aikacen da za a iya kallon nunin daga nesa ko a cikin yanayi mai haske mai yawa.

1.4.2 Abubuwan Tunani na Ƙira

Lokacin haɗa LTS-4301SW, dole ne masu ƙira su yi la'akari da iyakancewar halin yanzu. Resistan jerin gwano wajibi ne ga kowane anode na sashe (ko direba mai ƙayyadaddun halin yanzu) don saita halin yanzu na gaba zuwa matakin da ake so, yawanci tsakanin 5-20 mA, dangane da hasken da ake buƙata da yanayin zafi. Dole ne a mutunta lanƙwasa raguwa don halin yanzu na gaba idan ana tsammanin yanayin yanayin aiki zai yi zafi. Tsarin cathode na gama gari yana buƙatar da'irar direba don nutse halin yanzu. Lokacin haɗakar lambobi da yawa (ko da yake wannan naúrar lamba ɗaya ce, ƙa'idar ta shafi tsarin da ke amfani da su da yawa), ana buƙatar dacewar direba IC wanda zai iya samar da halin yanzu ga anodes kuma ya nutsar da jimlar halin yanzu na cathode. Tsarin PCB ya kamata ya tabbatar da alamun wutar lantarki masu tsabta don rage ƙarar hayaniya.

1.5 Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da irin wannan nunin lamba ɗaya, amfani da LTS-4301SW na fasahar farin LED na InGaN yana ba da fa'idodi akan tsofaffin fasahohi kamar LED ja GaAsP ko farin haske mai tacewa. LED na InGaN gabaɗaya suna ba da inganci da haske mafi girma. Fuskar baƙi tare da fararen sassa shine babban abin banbancewa daga nunin da ke da fuska mai launin toka ko haske, yana ba da mafi girman bambanci, wanda shine muhimmin abu don karantawa. Ƙayyadaddun matsakaicin daidaiton ƙarfin haske (2:1) yana tabbatar da daidaiton sashe, wanda ba koyaushe ake tabbatar da shi ba a cikin nunin ƙarancin farashi. Faɗin kewayon yanayin zafi na aiki (-35\u00b0C zuwa +105\u00b0C) shima yana mai da shi mafi ƙarfi don aikace-aikacen masana'antu ko na waje idan aka kwatanta da nunin da ke da ƙaramin kewayon.

1.6 Tambayoyin da ake yawan yi dangane da Ma'auni na Fasaha

Q: Menene manufar ƙugiyoyin cathode gama gari biyu (3 da 8)?

A: An haɗa su a ciki. Samun ƙugiya biyu yana taimakawa wajen rarraba jimlar halin yanzu na cathode (wanda shine jimlar halin yanzu daga duk sassan da aka haskaka) a cikin haɗin gishiri guda biyu da alamun PCB, yana inganta ƙarfin sarrafa halin yanzu, aikin zafi, da amincin haɗin injiniya.

Q: Ta yaya zan iya ƙididdige ƙimar resistor na jerin gwano don sashe?

A: Yi amfani da Dokar Ohm: R = (V_wadata- V_F) / I_F. Misali, tare da wadata 5V, V na yau da kullun na 3.15V, da I da ake so na 10 mA: R = (5 - 3.15) / 0.01 = 185 ohms. Yi amfani da mafi kusancin ƙimar daidaitaccen (misali, 180 ko 200 ohms). Koyaushe yi la'akari da ƙimar wutar lantarki: P = I_Fof 3.15V, and a desired I_Fof 10 mA: R = (5 - 3.15) / 0.01 = 185 ohms. Use the nearest standard value (e.g., 180 or 200 ohms). Always consider power rating: P = I_F²* R.

Q: Zan iya tuƙa wannan nunin kai tsaye daga ƙugiyar microcontroller?

A: Ya dogara da ikon samar da halin yanzu na ƙugiyar MCU. Ƙugiyar MCU ta yau da kullun na iya samar da 20-25 mA, wanda ya isa don sashe ɗaya a cikin cikakken halin yanzu. Duk da haka, tuƙi sassa da yawa ko cathode na gama gari (wanda ke nutsar da jimlar duk halin yanzu na sashe) yawanci ya wuce ikon ƙugiya ɗaya. An ba da shawarar ƙwararrun direba IC (misali, 74HC595 mai rikodin motsi tare da masu iyakancewar halin yanzu, ko direban LED na halin yanzu na akai) don aiki mai aminci da aminci.

Q: Menene ma'anar \"an rarraba don ƙarfin haske\"?

A: Yana nuna cewa yayin masana'anta, ana iya gwada ƙananan ƙwayoyin LED ko nunin da aka gama kuma a raba su (bin) dangane da ƙarfin hasken da aka auna. Wannan yana ba da damar abokan ciniki su zaɓi sassa tare da takamaiman kewayon haske don daidaito a cikin samfurinsu, musamman lokacin amfani da nunin da yawa.

1.7 Yanayin Ƙira da Amfani na Aiki

Yi la'akari da ƙirar ma'aunin zafi na dijital mai sauƙi tare da karatun 0-9\u00b0C. LTS-4301SW ɗaya zai nuna lambar raka'a. Za a sarrafa fitarwar dijital na firikwensin zafin jiki ta hanyar microcontroller. MCU zai fassara ƙimar lamba (0-9) zuwa tsarin sashe da ya dace (misali, don '5', sassan A, F, G, C, D suna KUNNA). MCU zai yi amfani da faɗaɗa tashar jiragen ruwa ko mai rikodin motsi don samar da halin yanzu ga anodes na sashe (ƙugiya 1,2,4,5,6,7,9,10) ta hanyar masu iyakancewar halin yanzu. Za a haɗa cathode na gama gari (ƙugiya 3 & 8) zuwa ƙugiyar ƙasa wacce za ta iya nutsar da jimlar halin yanzu (misali, sassa 8 * 10 mA = 80 mA), mai yiwuwa yana buƙatar transistor. Fuskar baƙi tana tabbatar da cewa '5' ana iya karantawa cikin sauƙi akan panel ɗin na'urar.

1.8 Gabatarwar Ƙa'idar Aiki

Nunin sassa bakwai yana aiki akan ƙa'ida mai sauƙi: tarin sandunan LED masu zaman kansu bakwai (sassa) ne waɗanda aka tsara su cikin tsarin adadi takwas. Ta hanyar kunna takamaiman haɗin waɗannan sassan, ana iya samar da duk lambobi goma na goma (0-9). Misali, don nuna lambar '7', sassan A, B, da C suna haskakawa. Ma'aunin goma ƙarin LED daban ne. A lantarki, kowane sashe LED ne na daidaitaccen tare da anode da cathode. A cikin nau'in cathode na gama gari kamar LTS-4301SW, duk cathodes an haɗa su tare zuwa tashar gama gari. Don haskaka sashe, ana amfani da ƙarfin lantarki mai kyau (ta hanyar mai iyakancewar halin yanzu) akan ƙugiyar anode ta musamman, yayin da aka haɗa cathode na gama gari zuwa ƙasa, yana kammala da'irar.

1.9 Trends na Fasaha da Ci gaba

Trend a cikin nunin sassa bakwai ya kasance zuwa ga ingantaccen inganci, haske, da ƙananan ƙira. Matsi daga LED na gargajiya masu launi (ja, kore) zuwa farin LED da aka canza phosphor (kamar ƙwayar tushen InGaN a cikin wannan nunin) yana ba da damar bayyanar tsaka-tsaki, babban bambanci wanda ya dace da ƙarin aikace-aikace. Hakanan akwai yanayin zuwa fakitin na'urar haɗawa da fuska (SMD) don haɗawa ta atomatik, ko da yake nau'ikan rami kamar wannan suna ci gaba da shahara don ƙirar ƙira, gyara, da aikace-aikacen da ke buƙatar haɗin injiniya mai ƙarfi. Haɗin kai wani yanayi ne, tare da na'urorin lantarki direba kuma wani lokacin microcontrollers ana haɗa su tare da na'urar nuni da kanta, yana rage adadin abubuwan waje. Bugu da ƙari, ci gaban da aka samu a cikin kayan yana haifar da faɗin kusurwar kallo da ingantaccen aiki a cikin faɗin kewayon zafi.