He aha te taputapu whakaahua PIN?

He aha tePūoko whakaahua PIN

He taputapu tino tairongo te taputapu whakaahuapūrere whakaahua haurua-hauruae huri ana i te mārama hei hiko mā te whakamahi i te pānga whakaahua-hiko. Ko tōna wāhanga matua ko te photodiode (PD photodetector). Ko te momo tino noa he mea tito mai i te hononga PN, ngā ara hiko e rite ana me te anga ngongo. He kawe hiko kotahi-ara tōna. Ina whakamahia he ngaohiko whakamua, ka kawe te diode; ina whakamahia he ngaohiko whakamuri, ka motu te diode. He rite te PD photodetector ki te diode semiconductor noa, engari ko tērāPūoko whakaahua PDKa mahi i raro i te ngaohiko whakamuri, ā, ka taea te whakaatu. Ka tākaihia mā te hononga matapihi, muka whatu rānei, kia tae atu ai te mārama ki te wāhanga whakaahua-ā-ahua o te taputapu.

I taua wā, ko te wāhanga e whakamahia whānuitia ana i roto i te taputapu whakaahua PD ehara i te hononga PN engari ko te hononga PIN. Ki te whakatauritea ki te hononga PN, he paparanga I anō kei waenganui o te hononga PIN. Ko te paparanga I he paparanga o te haurua-ā-ira momo-N me te kukū iti rawa o te tāpiritanga. Nā te mea he haurua-ā-ira tata tonu me te kukū iti, ka kiia ko te paparanga I. He matotoru te paparanga I, ā, tata kapi katoa i te rohe mimiti. Ko te nuinga o ngā irahiko taunga ka mimitihia ki te paparanga I, ā, ka whakaputa i ngā takirua irahiko-pōha (ngā kaikawe whakaahua). Kei ngā taha e rua o te paparanga I ko ngā haurua-ā-ira momo-P me momo-N me ngā kukū tāpiritanga teitei rawa. He tino angiangi ngā paparanga P me N, ka mimiti i te iti rawa o ngā irahiko taunga, ā, ka whakaputa i te iti o ngā kaikawe whakaahua. Ka taea e tēnei hanganga te whakatere tere i te tere urupare o te pānga whakaahua-hiko. Heoi, mā te rohe mimiti whānui rawa ka roa ake te wā rere o ngā kaikawe whakaahua-ā-ira i te rohe mimiti, ka puta he urupare puhoi ake. Nō reira, me whiriwhiri tika te whānui o te rohe mimiti. Ka taea te whakarerekē i te tere urupare o te diode hononga PIN mā te whakahaere i te whānui o te rohe whakahekenga.

He taputapu tirotiro hihi tino tika te taputapu tirotiro hihi PIN, he tino pai te taumira pūngao me te whai huatanga o te kimi. Ka taea e ia te ine tika i ngā momo pūngao hihi, ā, ka tere te urupare me te pumau. Ko te mahi a tepūoko whakaahuaKo te kaupapa matua ko te huri i ngā tohu ngaru mārama e rua i muri i te auau whiu hei tohu hiko, te whakakore i te haruru kaha tāpiri o te rama oscillator ā-rohe, te whakarei ake i te tohu auau waenga, me te whakapai ake i te ōwehenga tohu-ki-haruru. He hanganga māmā ngā taputapu whakaahua PIN, he ngāwari ki te whakamahi, he tairongo teitei, he nui te whiwhinga, he whānui teitei, he iti te haruru, me te kaha ki te ārai-whakararuraru. Ka taea e rātou te mahi pumau i roto i ngā taiao uaua, ā, e whakamahia ana i roto i te ine hau ine tohu lidar.