Shirya na resistors don diyodai da LED shirya na resistors shine yana da mahimmanci a cikin rukunin elektroniki da amfani da sarari. Idan kana buƙata sarari na gaba daya ko kuma buƙata sarari na iluminashi mai yawa, ƙimar na resistor yana iya zama babu wani abu da ke fuskantar zaman lafiya na ayyukan, ƙarfin iluminashi, da kuma kafin sarari. Shirya mai mali ya zama sabon baya na ayyukan, ƙarfin yawa na sarari, ko kuma iluminashi mai yawa. Fasahar yadda voltage, current, da resistance suka magana suna da mahimmanci ga kowanne mutum da ke amfani da ayyukan kafa na semiconductor a kowane amfani.
Tsarin zaɓar madaidaicin juriya ya ƙunshi lissafin faduwar ƙarfin lantarki a cikin ɓangaren kuma ƙayyade gudan halin yanzu da ake so. Na'urorin samar da haske na semiconductor suna aiki a cikin takamaiman zangon halin yanzu, kuma wuce waɗannan zangon yana haifar da lalacewa na dindindin. Matsayin LED na zamani da inganci da aikin suna buƙatar iyakancewar halin yanzu don haɓaka haske yayin kiyaye yanayin aiki mai aminci. Wannan labarin yana tafiya ta hanyar cikakkiyar hanyar don girman juriya daidai, yana rufe ka'idodin ka'idoji da yanayin aikace-aikacen aiki a cikin tsarin kewayawa daban-daban.
Fahimtar Rashin Voltage da Buƙatar Yanzu
Takamunin da ayyukan yadda za a sanya resistors ya ke da Ohm's Law: V shine I ta zama R. A matsayin hali, kamar yadda ake amfani da ita, kuna bukatar nuna uku na muhimmi: voltage na supply, voltage na forward drop na abin da ke amfani da shi, da kuma current na aiki da kake son amfani da shi. Voltage na forward drop zai iya canzawa tare da nau'in abin da ke amfani da shi da composition na material na shi. Red LEDs suna da voltage na forward kamar 2 volts, amma blue ko white semiconductor light emitting devices zasu bukata 3 zuwa 4 volts ko kuma karin.
Matsaloli na Forward Voltage
Kullum kuma mai bayyana aiki na semiconductor yana da datasheet wanda ya bayyana voltage na gaba na shi a kuma na mabudin. Wannan bayani yana muhimmi saboda yana nuna voltage da ke disponibul don kuma mai tsayayya. Idan kuka cire voltage na gaba daga voltage na supply, wadanda zasu kashe a kan kuma mai tsayayya. Aikin photodiode da kuma kuma na LED da kuma tajji na aiki suna iya amfani da yadda kuma mai bayyana aiki yana aiki a cikin kuma na aiki. Idan kuma mai bayyana aiki ya ci gaba daga kuma na gaba, yana zama babu kyau da kuma mai bayyana aiki da yana ƙunshi lokacin aiki.
Kuma na Aiki da Kuma na LED da Tajji da Aiki
Kudin kuma aiki na LED na farko yana ƙara daga 10 zuwa 20 milliamps, amma wasu alama na kariya mai zuba kyau yana bukatar kayan aiki biyamma. LED na gaba daya na kariya wanda aka taimaka su a cikin alama na kariya na sana’a yana aiki da 350 milliamps ko kamar haka, wanda yana bukatar tallafin tsarin kuma tallafin kudin kuma na resistor. Kudin kuma na LED kuma kudin kuma na aiki suka raba lokacin da alama ta aiki da kudin kuma ta kawo. Idan kudin kuma ta ƙara yana ƙara kudin kuma na alama kuma yana saukarwa, amma idan kudin kuma ta ƙara yana haɗawa da kudin kuma mai yawa kuma yana rage kudin kuma na alama.
Tallafin Kudin Kuma na Resistor kuma Kudin Kuma na Aiki
Idan aka saba kuma yadda za a yi amfani da shi, sabon yadda za a yi amfani da Ohm's Law zai zama mafi kyawawa. Sanya farko na yadda da ke cikin LED daga yadda da ke cikin supply don samun yadda da ke cikin resistor. Sannan ka biyayi yadda da ke cikin resistor da yadda da ke cikin amperes don fahimci yadda da ke cikin ohms. Misali, idan yadda da ke cikin supply shine 5 volts, yadda da ke cikin LED shine 2 volts, kuma yadda da ke cikin amperes shine 15 milliamps, yadda da ke cikin calculation shine (5 minus 2) biyayi 0.015 zai zama 200 ohms. Ka saurin yadda da ke cikin standard resistor wanda ke cikin karamin masu amfani don gudanin bayani kuma don tabbatar da yadda da ke cikin mafi kyawawan aiki.
Yadda da ke cikin mafi kyawawan aiki cikin resistors
Masu juriya suna watsa wutar lantarki bisa ga dabara P daidai da I zuwa biyu sau R, ko kuma P daidai da V sau I. Wannan watsawar wutar lantarki yana haifar da zafi wanda dole ne a sarrafa shi yadda ya kamata. Mai tsayayya 200-ohm tare da miliamp 15 yana gudana ta hanyarsa yana watsar da watts 0.045, wanda ke buƙatar akalla mai tsayayya na 0.125 don iyakar aminci. Yin watsi da lissafin ikon sarrafawa yana haifar da ƙonewar juriya da gazawar kewayawa. Aikace-aikacen photodiode galibi suna haɗawa da ƙananan igiyoyi da ƙananan ɓarnatar da wutar lantarki, amma ƙirar LED mai ƙarfi da ƙirar aiki suna buƙatar kulawa da hankali ga la'akari da zafi. Koyaushe zaɓi masu juriya tare da akalla sau biyu ƙididdigar ƙididdigar ƙarfin ƙarfin ƙarfin don tabbatar da tabbaci na dogon lokaci.
Matsayin zafin jiki da kwanciyar hankali
Kwayoyin ƙarfi na yin mutuwa ta zama kamar haka da sauyin canjin yaki, wanda ke bayani kan tsarin canjin yaki. Kwayoyin ƙarfi na karbon film suna da canjin yaki na 100 zuwa 500 parts per million per degree Celsius. Idan wannan canji ya zama mafi kyau don wasu kwayoyin LED, a matsayin kwayoyin photodiode na fahimtar da kwayoyin da suka so LED na zama mafi kyau da mafi ƙarfi suna bukatar kwayoyin ƙarfi da canjin yaki mai ƙarfi. A cikin yankin da suka fiye da canjin yaki ko a cikin yankin da suka fiye da canjin yaki na yanzu, kwayoyin ƙarfi na metal film suka nema da kyakkyawa. Ku lura cewa kwayoyin ƙarfi da kuka zauna suna taimaka wajen samun kyakkyawa a cikin kowane canjin yaki na yankin da kuka amfani da shi.
Hausashe na Tsarin Kwayoyin
Resistor sizing bukatun bambanta dangane da ko kana zayyana jerin kewaye ko aiwatar da mafi hadaddun topologies. Tsarin kewayawa yana wakiltar tsari mafi sauki, inda juriya guda ɗaya ke iyakance halin yanzu don ɗaya ko na'urori masu samar da haske masu yawa. Kowane tsari yana gabatar da ƙalubalen girman daban kuma yana buƙatar kulawa ta musamman ga rarraba ƙarfin lantarki da daidaitawar halin yanzu. Fahimtar waɗannan bambance-bambancen yana tabbatar da ingantaccen inganci da aikin LED a cikin aikace-aikacen masana'antu da masu amfani da yawa.
Tsarin jerin tare da na'urori guda ɗaya
Matsala na yadda ake amfani da resistorin da aka saba ya zama ƙarshen da aka yi a cikin karama ta hanyar LED wanda aka kawo shi cikin sarari da resistorin da ke tsara yadda ake so da kuma da supply na amfanin. Wannan tashin yadda ake amfani da ita yana da fahimtar kamar yadda ake so kuma yana nuna a matsaloli da dukkanin alamun da suka fiye da kuma alamu na yadda ake so. Resistorin ya kiyaye alamu na semiconductorin da ke sauta ta hanyar pawa da yadda ake so. Idan kana gano yadda ake amfani da resistorin ta hanyar bayanin da aka bayyana a baya, yadda ake amfani da ita yana da fahimtar kamar yadda ake so kuma yana da kyakkyawan aiki. Wannan yadda ake amfani da ita yana da kyakkyawan aiki ga alamun da suka fiye da kuma yana zama ƙarshen da aka yi a matsaloli da alamun LED da suka fiye da kuma da yadda ake so.
Dukkali Alamu da Tashin Da Su Ka Fiye
Tsarin layi daya na na'urorin samar da haske na semiconductor yana buƙatar bincike mai mahimmanci saboda yanzu ya raba tsakanin na'urori bisa ga halayen ƙarfin lantarki na gaba. Ƙananan bambance-bambance a cikin na'urorin samar da haske na semiconductor suna haifar da rashin daidaituwa na yanzu, inda wasu na'urori ke janyewa fiye da wasu. Wannan rarrabawar da ba daidai ba tana rage ingancin LED gaba ɗaya da aikinsa saboda na'urori masu haske suna jan ƙarin halin yanzu kuma suna tsufa da sauri. Jerin layi daya masu daidaitawa suna daidaita waɗannan damuwa amma suna buƙatar ƙarin wurin sanya juriya da ƙididdiga masu rikitarwa. Aikace-aikacen photodiode galibi suna haɗawa da nau'ikan kewayawa daban-daban waɗanda suka dace da haɓakar sigina da aunawa maimakon haske mai sauƙi.
Babban Tambayoyi
Abin da ya faru idan na yi amfani da wani juriya darajar da cewa shi ne ma kananan?
Amma yin amfani da resistor din da ke ƙarami kusan yana ba da kwayoyin yadda ake so don zuba a cikin abin da ke shiga mai sautin kuma yana nufin kusanci da kusanci wajen daga baya. Abin da ke shiga mai sautin yana gudan kafin da aka sanya kwayoyin kuma yana gudan a cikin seconds. Kuma, resistor din zai iya gudan kafin da aka sanya kwayoyin saboda yadda ake so don gudan kafin da aka sanya kwayoyin. Wannan halin yana nuna saboda ina bukatar hisabinsa ta hanyar da ke taimaka wajen fahimtar yadda ake amfani da diodes da leds. Kama tsayi hisabin ku kuma amfani da resistor din da ke ƙarƙashin da ke cikin hisabin ku kuma ba za a yi amfani da wanda ke ƙarami kusan.
Yadda amfani da photodiode suka faru daga amfani da LED sizing?
Aikace-aikacen photodiode sun haɗa da aikin da aka yi da baya da kuma jin dadi ga haske maimakon hasken haske. Masu juriya masu iyakance halin yanzu suna aiki da ayyuka daban-daban a cikin kewayen photodiode, galibi suna aiki tare da masu haɓaka transimpedance maimakon daidaitaccen jerin abubuwa. Tsarin girman yana la'akari da buƙatun ƙarfin siginar da halayen amo maimakon fitowar haske. Fahimtar wannan bambanci yana taimaka wa injiniyoyi su zaɓi abubuwa da suka dace da kowane aikace-aikace. Duk da yake duka biyu sun haɗa da na'urorin hasken wuta na semiconductor a ka'ida, rawar da ke kewaye da su da kuma tsarin girman su ya bambanta.
Me yasa girman ƙarfin ƙarfin LED ke shafar inganci da aikin?
Kamalalin LED da koyausin su ke taka cikin yadda ake amfani da su a cikin ƙananan yadda ake nuna a cikin shafin bayani na al'ada. Yadda ake tsayayya resistors zai iya gudun matakan al'ada ta hanyar yadda ake amfani da su, amma yadda ake tsayayya resistors zai iya gyara yadda ake amfani da su a cikin ƙananan yadda ake nuna, wanda zai gyara kuma zai gudun matakan al'ada da koyausin su. Tsayayyar resistors daidai zai iya tabbatar da yadda al'ada ta amfani da su a cikin yadda ake sanya su, inda kamalalin su ke taka cikin yadda ake sanya su kuma yadda ake gudun matakan al'ada ke taka cikin yadda ake sanya su. Wannan yadda ake taka cikin yadda ake tsayayya resistors da koyausin al'ada na semiconductor zai iya tabbatar da yadda ake tsayayya resistors a cikin yadda ake sanya su kuma a cikin yadda ake sanya al'ada na circuit.
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