Bayanin Fasaha na LTE-C9901 Mai Fitowa da Haske na Infrared - Tsawon Ra'ayi 940nm - Kunshin 5mm - Ƙarfin Gaba 1.4V - Ragewar Wutar Lantarki 100mW - Takaddun Fasaha na Hausa

1. Bayanin Samfur

LTE-C9901 wani ɓangare ne mai fitowa da haske na infrared wanda aka tsara don aikace-aikacen haɗawa da saman. Yana cikin ɗimbin hanyoyin warware matsalolin infrared da aka yi niyya don aikace-aikacen da ke buƙatar ingantacciyar fitar da haske na infrared mai inganci. Na'urar tana aiki a tsayin ra'ayi mai girma na 940nm, wanda ya dace don rage tsangwama na haske da ake iya gani kuma ana amfani da shi a cikin kayan lantarki na masu amfani da kuma na'urori masu auna firikwensin masana'antu.

Babban fa'idodin wannan ɓangaren sun haɗa da dacewarsa da na'urorin sanya kai da hanyoyin gyarawa na infrared reflow, wanda ya sa ya dace don samar da yawan kaya. Ƙirar sa ta sama tare da ruwan tabarau mai tsabta yana ba da tsarin radiyo mai faɗi. Samfurin ya bi ka'idojin RoHS da ma'auni na samfurin kore, yana tabbatar da alhakin muhalli.

Kasuwar da aka yi niyya don wannan mai fitowa da haske na infrared ta haɗa da masu kera na'urorin sarrafa nesa don kayan lantarki na masu amfani (TVs, tsarin sauti, na'urorin sanyaya iska), tsarin watsa bayanai mara waya na infrared, ƙararrawar tsaro, da duk wani aikace-aikacen firikwensin infrared da aka haɗa a kan PCB inda ake buƙatar sadarwa ko firikwensin da ba a iya gani ba.

2. Bincike Mai zurfi na Ma'auni na Fasaha

2.1 Halayen Photometric da Na Gani

Babban ma'auni na gani shine Ƙarfin Radiant (I_E), wanda aka ƙayyade tare da ƙimar al'ada na 8.0 mW/sr a lokacin gaba na gaba (I_F) na 20mA, tare da mafi ƙarancin 5.0 da matsakaicin 10.0 mW/sr. Tolerancin ±15% ya shafi ma'aunin gwaji na I_E. Tsayin ra'ayi mai fitowa (λ_Peak) shine 940nm, yana sanya shi a cikin bakan infrared na kusa. Ramin layin bakan (Δλ) shine 50nm, yana bayyana faɗin band na hasken da aka fitar. Kusurwar kallo (2θ_1/2) shine digiri 65, inda θ_1/2shine kusurwar kashe-axis wanda ƙarfin radiant ya faɗi zuwa rabin ƙimar axial. Wannan kusurwar faɗi tana dacewa don aikace-aikacen da ke buƙatar ɗaukar hoto mai faɗi.

2.2 Halayen Lantarki

Ƙarfin gaba (V_F) yawanci shine 1.4V a I_F= 20mA. Ƙarfin baya (I_R) an ƙayyade shi tare da matsakaicin 10 μA lokacin da aka yi amfani da ƙarfin baya (V_R) na 5V. Waɗannan ma'auni suna da mahimmanci don ƙirar da'ira, musamman don ƙididdige ƙimar resistor na jerin da tabbatar da ingantaccen biasing.

2.3 Matsakaicin Ƙididdiga Cikakke da Gudanar da Zafi

Na'urar tana da matsakaicin ragewar wutar lantarki na 100 mW. Ƙarfin gaba na DC bai kamata ya wuce 60 mA ba. Don aikin pulsed, ana ba da izinin matsakaicin ƙarfin gaba na 600 mA a ƙarƙashin takamaiman sharuɗɗa (pulses 300 a kowace dakika, faɗin bugun jini 10 μs). Matsakaicin ƙarfin baya shine 5V. Kewayon zafin aiki daga -40°C zuwa +85°C, kuma kewayon zafin ajiya daga -55°C zuwa +100°C. Wucewa waɗannan ƙididdiga na iya haifar da lalacewa ta dindindin. Na'urar na iya jurewa gyarawar infrared reflow tare da matsakaicin zafin jiki na 260°C na matsakaicin dakika 10, wanda shine ma'auni don hanyoyin haɗawa marasa gubar (Pb-free).

3. Bincike na Lanƙwasa Aiki

Takaddun bayanan yana ba da wasu lanƙwasa halaye na yau da kullun waɗanda ke da mahimmanci ga injiniyoyin ƙira. Lanƙwasa Ƙarfin Gaba da Ƙarfin Gaba (I-V) yana nuna alaƙar ma'auni, mai mahimmanci don tantance wurin aiki da tasirin zafi. Lanƙwasa Ƙarfin Radiant Dangane da Ƙarfin Gaba yana nuna yadda fitar da haske ke ƙaruwa tare da ƙarfin lantarki, yana taimakawa wajen inganta ƙarfin tuƙi don fitarwa da ake so. Lanƙwasa Ƙarfin Radiant Dangane da Zafin Yanayi yana nuna dogaron fitarwa akan zafin jiki, wanda ke da mahimmanci don aikace-aikacen da ke aiki a cikin yanayi daban-daban. Zanen Radiation yana wakiltar rarraba sararin samaniya na hasken infrared da aka fitar, yana tabbatar da kusurwar kallo digiri 65. A ƙarshe, lanƙwasa Rarraba Spectral yana kwatanta tattara ƙarfin wutar lantarki a kusa da tsayin ra'ayi mai girma 940nm.

4. Bayanin Injiniya da Kunshi

4.1 Girman Bayani

An sanya ɓangaren a cikin kunshin EIA na yau da kullun. Duk mahimman girmansa, gami da girman jiki, tazarar jagora, da tsayin gabaɗaya, ana ba da su a cikin zanen bayani. Tolerances yawanci ±0.1mm sai dai idan an ƙayyade su. An tsara kunshin don fitarwa ta sama.

4.2 Tsarin Solder Pad da Polarity

An ba da girmen sandunan gyarawa da aka ba da shawarar don tabbatar da haɗin gyarawa mai inganci da daidaitawar da ta dace yayin reflow. An gano anode da cathode a fili a cikin zanen sawun ƙafa. Yin bin waɗannan girmen sandunan yana da mahimmanci don hana kabari da tabbatar da ingantaccen haɗin zafi da lantarki.

5. Jagororin Gyarawa da Haɗawa

5.1 Bayanin Reflow Soldering

An haɗa cikakken shawara don bayanin reflow IR wanda ya dace don hanyoyin Pb-free. Mahimman ma'auni sun haɗa da yankin pre-heat (150-200°C), lokacin pre-heat (max dakika 120), matsakaicin zafin jiki (max 260°C), da lokacin sama da ruwa (max dakika 10). Bayanin ya dogara ne akan ma'auni na JEDEC don tabbatar da ingancin ɓangaren. An jaddada cewa ainihin bayanin dole ne a siffanta shi don takamaiman ƙirar PCB, man gyarawa, da tanda da aka yi amfani da su.

5.2 Gyarawa da Hannu da Tsaftacewa

Idan gyarawa da hannu ya zama dole, zafin ƙarfe na gyarawa bai kamata ya wuce 300°C ba, kuma lokacin tuntuɓar ya kamata a iyakance zuwa dakika 3 a kowane kafa. Don tsaftacewa, kawai ana ba da shawarar masu narkewa na barasa kamar isopropyl alcohol.

5.3 Ajiya da Kula da Kula

Don maras buɗewa, marufi mai hana danshi tare da desiccant, ya kamata a adana na'urar a ≤30°C da ≤90% Danshi Dangane (RH) kuma a yi amfani da ita cikin shekara guda. Da zarar an buɗe ainihin marufi, sharuɗɗan ajiya ya kamata su zama ≤30°C da ≤60% RH. Abubuwan da aka fallasa ga yanayin yanayi fiye da mako guda ya kamata a gasa su a kusan 60°C na aƙalla sa'o'i 20 kafin gyarawa don cire danshin da aka sha da hana "popcorning" yayin reflow.

6. Bayanin Kunshi da Oda

Ana ba da na'urar a cikin kaset ɗin mai ɗaukar kaya na 8mm akan reels masu diamita inci 7, masu dacewa da na'urorin ɗauka da sanya ta atomatik. Kowace reel tana ƙunshe da guda 3000. Kunshin yana bin ƙayyadaddun ANSI/EIA 481-1-A-1994. Ana rufe fanko na ɓangaren da aka kwance tare da madaidaicin murfin saman. Matsakaicin adadin abubuwan da suka ɓace a jere a cikin kaset shine biyu.

7. Bayanan Aikace-aikace da Abubuwan Ƙira

7.1 Da'irorin Aikace-aikace na Yau da Kullun

Mai fitowa da haske na infrared na'ura ce mai sarrafa ƙarfin lantarki. Don tabbatar da daidaiton ƙarfi lokacin tuƙi da yawa LEDs a layi daya, ana ba da shawarar sosai don amfani da resistor mai iyakancewa na ƙarfin lantarki na mutum ɗaya a cikin jerin tare da kowane LED (Da'ira A), maimakon raba resistor guda ɗaya don LEDs da yawa (Da'ira B). Wannan yana rama ɗan bambanci a cikin ƙarfin gaba (V_F) na masu fitarwa na mutum ɗaya. Ƙimar resistor na jerin (R_S) ana iya ƙididdige shi ta amfani da dabara: R_S= (V_CC- V_F) / I_F, inda V_CCshine ƙarfin wutar lantarki, V_Fshine ƙarfin gaba na LED a lokacin ƙarfin lantarki da ake so I_F.

7.2 Iyakar Aikace-aikace da Iyakoki

Wannan ɓangaren an yi niyya ne don kayan aikin lantarki na yau da kullun kamar kayan aikin ofis, na'urorin sadarwa, da kayan aikin gida. Ba a tsara shi ko cancanta don aikace-aikacen da ingantaccen aminci ke da mahimmanci ga rayuwa ko aminci (misali, jirgin sama, tallafin rayuwa na likita, tsarin amincin sufuri) ba tare da tuntuɓar juna da takamaiman cancanta ba.

8. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da LED na gani na yau da kullun, tsayin ra'ayi na 940nm ba a iya gani ga idon ɗan adam, yana mai da shi mai kyau don aiki mai hankali. Kusurwar kallo digiri 65 tana ba da daidaito mai kyau tsakanin tattara katako da yankin ɗaukar hoto. Kunshin SMD da dacewa da gyarawar reflow suna ba da fa'ida mai mahimmanci akan ta hanyar rami infrared LEDs a cikin layukan haɗawa na zamani, masu sarrafa kansa, suna rage farashin samarwa da sararin allo.

9. Tambayoyin da ake yawan yi (FAQ)

Q: Menene manufar tsayin ra'ayi na 940nm?

A: 940nm yana cikin bakan infrared na kusa. Ba a iya gani ga idon ɗan adam, yana rage gurɓataccen haske a cikin aikace-aikace. Hakanan yana daidaitawa da hankalin silicon photodiodes da phototransistors waɗanda aka saba amfani da su azaman masu karɓa.

Q: Shin zan iya tuƙi wannan LED kai tsaye daga fil ɗin microcontroller?

A: A'a. Fil ɗin microcontroller yawanci ba zai iya samar da ko nutsewa da isasshen ƙarfin lantarki (60mA max DC don wannan LED) ba kuma ba shi da sararin samaniya na ƙarfin lantarki. Dole ne ku yi amfani da da'irar direba, kamar mai canza transistor, tare da resistor mai iyakancewa na jerin kamar yadda aka bayyana a cikin bayanan aikace-aikace.

Q: Me yasa gasa ya zama dole idan an buɗe kunshin fiye da mako?

A> Kunshin SMD na filastik na iya sha danshi daga iska. A lokacin babban zafin jiki na gyarawar reflow, wannan danshin da aka kama zai iya yin tururi da sauri, yana haifar da rabuwa na ciki, tsagewa, ko "popcorning," wanda ke lalata ɓangaren. Gasawa yana cire wannan danshin da aka sha.

10. Misalai na Ƙira da Amfani na Aiki

Misali 1: Mai Watsa Sarrafa Nesa Mai Sauƙi.Ana iya amfani da LTE-C9901 azaman ɓangaren watsawa a cikin nesa na IR. Microcontroller yana haifar da siginar da aka daidaita (misali, mai ɗaukar hoto 38kHz) wanda ke canza transistor da ke tuƙi LED. An ƙididdige resistor na jerin bisa ga ƙarfin wutar lantarki na baturi (misali, 3V) da ƙarfin bugun jini da ake so (misali, 50mA), ta amfani da V na yau da kullun_Fna 1.4V.

Misali 2: Firikwensin Kusanci.Haɗe tare da phototransistor, mai fitarwa zai iya ƙirƙirar firikwensin abu mai nunawa. Mai fitarwa yana haskaka hasken IR, kuma wani abu yana kusa yana mayar da wasu haske zuwa phototransistor. Canjin fitarwa na phototransistor yana nuna kasancewar abu. Kusurwar kallo digiri 65 na mai fitarwa yana taimakawa rufe yankin ganowa mai ma'ana.

11. Ka'idar Aiki

Mai fitowa da haske na infrared diode ne na semiconductor. Lokacin da aka yi amfani da ƙarfin gaba, electrons da ramuka suna sake haɗuwa a cikin yankin aiki (wanda aka yi da kayan kamar GaAs ko AlGaAs), suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke ciki (a wannan yanayin, yana haifar da kololuwar 940nm) yana ƙayyade tsayin ra'ayi (launi) na hasken da aka fitar. Ƙarfin radiant yana daidai daidai da ƙarfin gaba a kan kewayon aiki na yau da kullun.

12. Trends na Masana'antu

Trend a cikin abubuwan infrared yana zuwa ga mafi inganci (ƙarin fitarwa na radiant a kowace raka'a na shigar da lantarki), ƙananan girman kunshin don ƙirar PCB mai yawa, da ƙara haɗawa. Wannan ya haɗa da na'urori tare da direbobi na cikin gida, fitarwa mai daidaitawa, ko haɗin gwiwar mai fitarwa-firikwensin a cikin kunshi guda ɗaya. Hakanan akwai ci gaba da tuƙi don ingantaccen aminci da aiki a kan faɗin kewayon zafin jiki don biyan buƙatun aikace-aikacen mota da masana'antu. Ƙaura zuwa samar da Pb-free da RoHS, kamar yadda aka gani tare da wannan ɓangaren, ma'auni ne na duniya a cikin masana'antar lantarki.