Nahea te whakaatu e whitu-wāhanga?

Arahina (ranei marama emitting ngōhiko) ko he ngōhiko whatu e tuku hoki pūngao marama i roto i te puka o te "pūaho" ka te whakamua tītaha reira. I roto i te hikohiko kōrero tatou ki tenei tukanga o electroluminescence. Ko te tae o te marama kitea tukuna e te arahina i roto i te whānui i puru ki whero me te whakaritea e te spectral roangaru o te marama tukuna, i roto i te tahuri tei runga i ngā poke e kua honoa ki te rauemi Semiconductor i roto i hanga.

LED i maha ngā painga whakaritea ki topuku tuku iho me rama, me, pea te nuinga nui o ratou ko to ratou rahi iti, mauroa, he momo o ngā tae, utu iti me te ngāwari wāteatanga, te kaha ki te ngāwari taunekeneke ki ngā atu wāhanga hiko i roto i iahiko mamati.

Ko te painga matua o LED ko e tika ana ki to ratou rahi iti, kia hāngai etahi o ratou i roto i te whare kiato kotahi, hanga he whakaatu e whitu-wāhanga pera-ka karanga.

ngā whakaatu e whitu-wāhanga o whitu LED (konei tona ingoa), te tapawhā ūnga, rite whakaaturia i roto i te ahua. ka karanga ia o te arahina e whitu wāhanga te, mai ngā te māramatanga o te wāhanga tau wahi (12 ira hautekaumāono ranei pūnaha tau). I te tahi taime i roto i te mōkihi taua whakamahia 8 atu LED. tavini te reira ki te whakaatu i te ira (DP), ko te kupu tuku ki te whakaatu i te hautau ā-ira, ki te rua atu o nga whakaaturanga 7-wāhanga hono tahi ranei ki te tohu i ngā tau neke atu i te kotahi tekau.

Arahina ia o te wāhanga e whitu whakaatu hono ki te rarangi whakapā papa rātou tikanga tika i runga i te tapawhā whare tohu kirihou. hoapā arahina tapanga tūtohu i te ki g, e tohu ana wāhanga ia takitahi. Ētahi atu hoapā o wāhanga arahina hono tahi me te hanga i te putanga noa.

Ko te kupu, Kei te tukua te rītaha whakamua ki te hoapā tika arahina wāhanga i roto i te raupapa ngā, ka meinga whakamarama ake etahi o nga wāhanga, a ka te toenga noho blacked atu, tuku ki a koutou te whakanui i te huru e hiahiatia ana o te tauira, ka e kia whakaaturia i runga i te whakaaturanga. Tenei taea ki tatou tohu ia o nga mati tekau ira 0 i roto i te 9, i te whakaatu 7-wāhanga.

Kei te nuinga te mutunga whānui e whakamahia ana ki te whakatau i te momo o te whakaatu 7-wāhanga. Kei ia mata arahina rua tūhono putanga, ka karanga tetahi o nei ko te "pitoake" me te tahi atu, aua huaina, ko te "pitoiho". Na reira, kia whai i te whitu-wāhanga tohu arahina e rua ngā momo o te mahi iahiko - he pitoiho noa (QA) me te pitoake noa (OA).

Ko te rerekētanga i waenganui i enei momo e rua o ngā whakaaturanga ko e hono te hoahoa o nga cathodes OC e tika hono katoa 7 wāhanga ki tetahi ki tetahi, a i roto i te ara iahiko ki te noa (OA) te i waenganui i te pitoake o anodes 7 wāhanga. iahiko e rua mahi e whai ake nei.

• Ko te pitoiho noa (QA) - cathodes tuatihia o nga wāhanga arahina katoa he taumata arorau "0" hono ki GND ranei. E whakaaturia ana te wāhanga takitahi i runga i to ratou pitoake supply putanga tohu o te taumata "teitei" arorau arorau "1" ranei i roto i te parenga iahiko whāiti ki te waihanga i tētahi rītaha whakamua o LED takitahi.
• pitoake Common (OA) - anodes e ngā wāhanga arahina katoa me te taumata arorau "1". wāhanga takitahi o te marama tohu ina ia pūhui takitahi te pitoiho ki hurihia, arorau "0" ranei iti-kōeke tohu i roto i te parenga iahiko whāiti nāianei e ōrite ana.

I roto i te whānui, he ake rongonui LED whitu-wāhanga ki te pitoake noa no te mea kia rapu atu nāianei maha arahiko arorau atu he taea ki te hoatu pūtake mana. mōhio hoki e kore ko te whakaatu pitoiho noa he ara iahiko whakakapi tika mō te whakaatu ki te pitoake noa. A hurihia - he ōrite ki te whakaurunga o LED i roto i te ahunga whakamuri tenei, a ko te kupu, e kore e paheke te marama puta.

Ahakoa e taea te tukinotia reira rite te whakaaturanga kotahi, he mea ngā tonu te whakaatu 7-wāhanga o LED takitahi e whitu i roto i te mōkihi kotahi, a ka rite taua, Me nga LED ki kia tiakina ki overcurrent. LED emit marama anake ka e ngā ratou i roto i te ahunga whakamua, me te nui o te te marama tukuna he hautanga ki te nāianei tika. Reira anake te tikanga e faarahi te kaha marama arahina āhua linearly ki te whakanui ake i nāianei. Na, i roto i te tikanga ki te karo kino ki te arahina, me te whakahaere i tenei nāianei tika, me te iti ki te uara haumaru o te parenga iahiko whāiti waho.

E huaina ēnei whakaaturanga wāhanga e whitu pateko. He ngoikoretanga tino ko te maha nui o titi i roto i te mōkihi. Ki te hinga tenei fakangatangata pā kaupapa mana hihiri e whitu whakaatu wāhanga.

riro tohu e whitu-wāhanga rongonui nui i roto i amateurs irirangi, no te mea he reira watea ki te whakamahi me te ngāwari ki te matau.