Bayanin Fasaha na LTE-4208 Mai Fitowa da Infrared - Tsawon Tsinkaya 940nm - Kunshin T-1 3/4 - Karfin Baya na 5V - Ragewar Wutar 100mW - Takardun Fasaha na Hausa

1. Bayyani Game da Samfur

Jerin LTE-4208 shine diode mai fitowa da infrared mai karfin haske wanda aka tsara don aikace-aikacen da ke bukatar ingantacciyar fitar da infrared. Yana aiki a kololuwar tsinkaya na 940nm, wannan na'urar tana cikin daidaitaccen kunshin T-1 3/4 tare da ruwan tabarau mai tsabta, wanda ya sa ya dace da tsarin gano da tsinkaya daban-daban.

1.1 Siffofi na Asali da Kasuwar da Ake Nufi

Babban fa'idodin LTE-4208 sun hada da karfin haskensa mai yawa, ruwan tabarau mai tsabta don fitarwa mara cikas, da daidaitawar sa da madaidaicin phototransistors kamar jerin LTR-3208, wanda ke da muhimmanci ga ingantaccen aikin mai karba. Samfurin ne mara gubar kuma ya bi ka'idodin RoHS. Babban aikace-aikacensa shine a cikin tsarin gano hayaki da kuma da'irori na fitar da infrared na gaba daya inda ake bukatar ingantattun siginonin infrared na bugun jini.

2. Ma'auni na Fasaha: Fassarar Maudu'i Mai zurfi

2.1 Madaidaitan Iyaka na Cikakke

Wadannan madaidaitan suna ayyana iyakokin damuwa wadanda suka wuce wanda lalacewa na dindindin na iya faruwa ga na'urar. Ba don ci gaba da aiki ba ne.

• Ragewar Wutar (Pd):100 mW. Wannan shine matsakaicin yawan wutar da aka yarda a cikin na'urar, musamman a matsayin zafi, wanda aka lissafta daga karfin gaba da na yanzu.
• Matsakaicin Karfin Gaba (I_FP):3 A a karkashin yanayin bugun jini (300 pps, faɗin bugun jini na 10µs). Wannan karfin yanzu mai yawa yana ba da damar bugun jini mai haske sosai, na gajeren lokaci don ganowa mai nisa.
• Ci gaba da Karfin Gaba (I_F):50 mA. Matsakaicin karfin yanzu na DC don ingantaccen aiki na ci gaba.
• Karfin Baya (V_R):5 V. Wuce wannan karfin a cikin baya na iya haifar da rushewa.
• Yanayin Aiki & Ajiya:-40°C zuwa +85°C da -55°C zuwa +100°C, bi da bi, yana nuna ingantaccen kayan aiki don muhallin masana'antu.
• Zazzabi na Solder na Jagora:260°C na dakika 5 a nisan 1.6mm daga jiki, yana ayyana yanayin zafi don solder na hannu ko na igiyar ruwa.

2.2 Halaye na Lantarki & Na Gani

Wadannan sune madaidaitan ma'auni na aiki da aka auna a 25°C.

• Karfin Hasken (I_E):Matsakaicin fitarwa na gani na asali, wanda aka auna a cikin mW/sr (milliwatts kowace steradian). An kayyade shi a cikin lambobin BIN da yawa (A har zuwa D4) tare da mafi karancin kima da madaidaitan kima, yana ba da damar zabar bisa ga karfin fitarwa da ake bukata. Misali, BIN A yana ba da 3.31-7.22 mW/sr, yayin da BIN D4 yana ba da 15.72 mW/sr (Mafi karanci).
• Kololuwar Tsinkaya Fitowa (λ_Kololuwa):940 nm. Wannan yana cikin kusancin bakan infrared, wanda ba a iya gani da idon mutum, kuma shine tsinkaya na gama gari don masu sarrafa nesa da na'urori masu auna saboda yana guje wa tsangwama na hasken muhalli.
• Rabin Faɗin Layin Bakan (Δλ):50 nm. Wannan yana ayyana faɗin band na hasken da aka fitar; mafi kunkuntar faɗin band zai nuna mafi yawan tushen launi guda.
• Karfin Gaba (V_F):1.6 V (Typ.) a I_F=20mA. Wannan shine raguwar karfin a kan diode lokacin da yake gudana, yana da mahimmanci don zanen da'irar direba.
• Karfin Baya (I_R):100 µA (Matsakaici) a V_R=5V. Ma'auni na yoyo; takardun bayanan sun bayyana a sarari cewa wannan yanayin na gwaji ne kawai kuma ba a yi amfani da na'urar don aikin baya ba.
• Kusurwar Dubawa (2θ_1/2):digiri 20. Wannan kunkuntar kusurwar katako tana tattara karfin haske zuwa katako mai jagora, wanda ya dace da aikace-aikacen ganowa da aka yi niyya.

3. Bayanin Tsarin Binning

LTE-4208 yana amfani da tsarin binning na karfin haske. Ana gwada kayan aiki kuma a raba su zuwa rukuni daban-daban na aiki (BINs) bisa ga aunannen fitarwar haske a daidaitaccen gwajin karfin yanzu na 20mA. Wannan yana ba masu zane damar zabar sassa tare da tabbataccen mafi karancin fitarwa na gani don aikace-aikacensu, yana tabbatar da daidaito a cikin aikin tsarin, musamman lokacin da ake amfani da masu fitarwa da yawa. Bins suna kewayo daga A (mafi karancin fitarwa) zuwa D4 (mafi girman fitarwa). Dole ne masu zane su kayyade lambar BIN da ake bukata lokacin yin oda don tabbatar da matakin karfin gani.

4. Bincike na Lankwasa Aiki

Takardun bayanan yana ba da jadawali masu mahimmanci da yawa don binciken zane.

4.1 Rarraba Bakan (Hoto 1)

Wannan lankwasa tana nuna madaidaicin karfin haske a matsayin aiki na tsinkaya, wanda ke tsakiya a kusa da kololuwar 940nm tare da ayyana rabin faɗin 50nm. Yana tabbatar da cewa fitarwa yana cikin band ɗin infrared da aka yi niyya.

4.2 Karfin Gaba vs. Yanayin Muhalli (Hoto 2)

Wannan lankwasa ta ragewa tana nuna yadda matsakaicin karfin gaba na ci gaba da aka yarda yana raguwa yayin da yanayin muhalli ke karuwa. A 85°C, matsakaicin karfin yanzu ya fi ƙasa sosai fiye da a 25°C, yana da mahimmanci don sarrafa zafi a cikin zane.

4.3 Karfin Gaba vs. Karfin Gaba (Hoto 3)

Madaidaicin lankwasa halayen I-V na diode. Yana nuna alaƙar ma'auni, tare da madaidaicin V_Fna 1.6V a 20mA da aka yiwa alama. Wannan lankwasa tana da mahimmanci don zanen resistor mai iyakance karfin yanzu a jere tare da LED.

4.4 Madaidaicin Karfin Hasken vs. Yanayin Muhalli (Hoto 4) & vs. Karfin Gaba (Hoto 5)

Hoto na 4 yana kwatanta dogaron zafi na fitarwa na gani, yawanci yana nuna raguwar inganci yayin da zafi ya tashi. Hoto na 5 yana nuna alaƙar ƙasa-layin tsakanin karfin tuƙi da fitarwa na haske; ninka karfin yanzu baya ninka fitarwa, halin gama gari a cikin LEDs.

4.5 Zanen Radiation (Hoto 6)

Zanen polar wanda ke wakiltar kusurwar dubawa na digiri 20 a zahiri. An daidaita karfin, yana nuna tattarawar katako.

5. Bayanin Injiniya da Kunshi

Na'urar tana amfani da kunshin T-1 3/4 (5mm) mai ratsa allura. Zanen zane ya kayyade mahimman girma ciki har da diamita na jagora, diamita na ruwan tabarau, da tsayin gaba daya. Muhimman bayanan sun hada da: duk girma a cikin mm, tolerance na ±0.25mm, matsakaicin tsawaita resin a karkashin flange na 1.0mm, da kuma cewa ana auna tazarar jagora a wurin fitowar jagora daga kunshin. Yawanci ana nuna polarity ta hanyar doguwar jagoran anode ko kuma wuri mai lebur a kan flange na kunshin.

6. Jagororin Solder da Taro

6.1 Ajiya

Ya kamata a adana kayan aiki a <30°C da <70% RH. Bayan bude jakar mai damun danshi, dole ne a yi amfani da su cikin watanni 3 a cikin yanayi mai sarrafawa (<25°C, <60% RH) don hana oxid na gubar wanda ke shafar solderability.

6.2 Tsaftacewa

Ana ba da shawarar kawai magungunan barasa kamar isopropyl alcohol (IPA).

6.3 Siffar Jagora

Dole ne a yi lanƙwasa aƙalla 3mm daga gindin ruwan tabarau. Ba za a iya amfani da tushe a matsayin fulcrum ba. Dole ne a yi siffar a yanayin daki kuma kafin solder.

6.4 Solder

An kayyade hanyoyi biyu tare da madaidaicin iyaka don hana lalacewa ta zafi:
Solder na Jagora:Matsakaici 350°C na dakika 3, tare da wurin solder ba ya kusa da 1.6mm daga gindin ruwan tabarau.
Solder na Wave:Yi pre-heat zuwa matsakaici 100°C na 60s, igiyar ruwan solder a matsakaici 260°C na 5s, tare da wurin tsoma baya kasa da 1.6mm daga tushe.
Gargadi Mai Muhimmanci:Kada a taɓa nutsar da ruwan tabarau a cikin solder. IR reflow BAI dace da wannan kunshin mai ratsa allura ba. Yawan zafi ko lokaci na iya lalata ruwan tabarau ko lalata LED.

7. Shawarwari na Aikace-aikace

7.1 Yanayin Aikace-aikace na Al'ada

• Masu Gano Hayaki:Ana amfani da su a cikin masu gano hayaki na photoelectric inda katakon infrared da aka fitar ya watsa ta hanyar barbashi na hayaki a kan mai karba.
• Kusanci & Ganowa Abu:An haɗa shi tare da madaidaicin phototransistor (misali, LTR-3208) a cikin tsarin ganowa mai katsewa ko na tunani.
• Kayan Aikin Masana'antu:Don kirga abu, ganowa matsayi, da ganowa gefe.

7.2 Abubuwan Tunani na Zane da Hanyar Tuƙi

LEDs na'urori ne masu tuƙi na yanzu. Don tabbatar da daidaiton haske lokacin tuƙi da LEDs da yawa a layi daya, ya zamawajibidon amfani da resistor mai iyakance karfin yanzu na kowane mutum a jere tare da kowane LED (Samfurin Da'ira A). Ba a ba da shawarar amfani da resistor guda ɗaya don jeri a layi daya (Samfurin Da'ira B) saboda bambance-bambance a cikin karfin gaba (V_F) na kowane LED, wanda ke haifar da rarraba karfin yanzu mara daidaituwa don haka haske mara daidaituwa. Ana lissafin darajar resistor ta amfani da R = (V_wadata- V_F) / I_F.

7.3 Kariya ta ESD (Fitarwa na Wutar Lantarki)

LEDs na infrared suna da hankali ga ESD. Abubuwan kariya na wajibi sun hada da: amfani da bel ɗin wuyan hannu da tashoshi na aiki masu kasa, yin amfani da masu ionizers don kawar da tsaye a kan ruwan tabarau na filastik, da tabbatar da cewa duk ma'aikatan da ke sarrafa na'urorin sun horar da ESD. An ba da cikakken lissafin abubuwan da ake bukata don wurare masu tsaro a cikin takardun bayanan.

8. Kwatancen Fasaha da Bambance-bambance

Babban abubuwan banbanta na LTE-4208 shine karfin karfin bugun jini (3A), wanda ke ba da damar karfin haske na lokaci-lokaci mai yawa don aikin bugun jini mai nisa ko mara amo, da kuma daidaitawar sa da jerin phototransistor na LTR-3208. Kunkuntar kusurwar dubawa na digiri 20 yana ba da mafi girman karfi akan axis idan aka kwatanta da masu fitarwa masu faɗi, yana sa ya fi dacewa da aikace-aikacen katako mai jagora. Tsarin binning mai tsabta yana ba da damar yin hasashen aikin gani.

9. Tambayoyin da ake yawan yi Bisa ga Ma'auni na Fasaha

Q: Shin zan iya tuƙa wannan LED kai tsaye daga fil ɗin microcontroller na 5V?
A: A'a. Dole ne ka yi amfani da resistor mai iyakance karfin yanzu a jere. Misali, tare da wadata 5V, V_Fna 1.6V, da kuma I_Fda ake so na 20mA, resistor zai zama (5V - 1.6V) / 0.02A = 170 Ohms (yi amfani da daidaitaccen resistor na 180 Ohm).

Q: Menene manufar lambar BIN?
A: Yana tabbatar da mafi karancin karfin haske. Don aikace-aikace mai mahimmanci kamar mai gano hayaki inda karfin sigin ke da mahimmanci, kayyade mafi girman BIN (misali, D2) yana tabbatar da katakon infrared mai karfi idan aka kwatanta da ƙananan BIN (misali, A).

Q: Me yasa kusurwar dubawa ta yi kunkuntar haka?
A: Kunkuntar katako yana tattara karfin gani zuwa ƙaramin kusurwa mai ƙarfi, yana ƙara ƙarfi tare da tsakiyar axis. Wannan yana inganta rabon sigin zuwa amo a cikin aikace-aikacen ganowa mai jagora kuma yana ba da damar tazara ganowa mai tsawo.

Q: Shin zan iya amfani da wannan don aikin igiyar ruwa (CW) a kololuwar karfin yanzu?
A: A'a. Matsakaicin 3A na aikin bugun jini ne kawai (bugun jini na 10µs). Matsakaicin karfin yanzu na ci gaba shine 50mA. Wuce madaidaicin ci gaba zai yi zafi da yawa kuma ya lalata na'urar.

10. Yanayin Zane da Amfani na Aiki

Harka: Zanen Kirga Abu na Slot-Type.
An sanya mai fitar da IR na LTE-4208 a gefe ɗaya na rami, kuma an sanya phototransistor na LTR-3208 kai tsaye a gaba. Lokacin da babu abu a cikin rami, katakon IR ya bugi mai karba, yana haifar da babban sigina. Lokacin da wani abu ya wuce, yana katse katakon, yana haifar da faɗuwar siginar mai karba. Babban karfin bugun jini na LTE-4208 yana ba mai zane damar buga LED a babban karfin yanzu (misali, 1A) na gajeren lokaci. Wannan yana haifar da walƙiya mai haske sosai wanda zai iya shawo kan amo na infrared na muhalli, yana ƙara amincin tsarin. Mai zane ya zaɓi LEDs na BIN C don tabbatar da isasshen ƙarfin katako a kan rata. An yi amfani da resistors na 10-Ohm na kowane mutum a jere tare da kowane LED a cikin jeri na firikwensin da yawa don tabbatar da daidaiton karfin yanzu. Taron ya bi jagororin solder don hana lalacewa ta zafi yayin yawan PCB.

11. Gabatarwar Ka'ida

Diode Mai Fitowa da Infrared (IRED) shine diode na semiconductor p-n junction wanda ke fitar da hasken infrared mara daidaituwa lokacin da aka yi masa bambanci gaba. Electrons suna sake haɗuwa tare da ramuka a cikin na'urar, suna sakin makamashi a cikin nau'in photons. Tsawon tsinkaya na waɗannan photons an ƙaddara shi ta hanyar karfin bandgap na kayan semiconductor da aka yi amfani da su (misali, Bambance-bambancen Gallium Arsenide don 940nm). Kunshin T-1 3/4 yana ɗauke da guntu na semiconductor, yana ba da kariya ta injiniya, kuma ya haɗa da ruwan tabarau na epoxy wanda ke siffata katakon hasken da aka fitar (a wannan yanayin, zuwa tsarin digiri 20).

12. Trends na Ci gaba

Filin masu fitar da infrared yana ci gaba da haɓakawa zuwa mafi inganci (ƙarin karfin haske kowace watt na lantarki), mafi sauri don aikace-aikacen sadarwar bayanai, da ƙara haɗin kai. Trends sun haɗa da haɓaka kunshin na'urar hawa saman (SMD) don taron kai tsaye, jerin guntu da yawa don mafi girman fitarwa na wutar lantarki, da na'urori tare da mafi kunkuntar faɗin bakan don takamaiman aikace-aikacen ganowa iskar gas. Haka nan akwai kuma kokarin zuwa ƙananan wutar lantarki don dacewa da da'irori na dijital na zamani. Ka'idar asali na electroluminescence a cikin junction semiconductor ya kasance akai-akai, amma kimiyyar kayan da fasahar kunshi sune manyan masu tuƙa ci gaba.