He aha nā inductors maʻamau | GETWELL

E like me nā resistors a me nā capacitors, ʻo nā mea hoʻokomo kekahi o nā mea hana passive i hoʻohana pinepine ʻia i ka hoʻolālā kaapuni. ʻO ka Inductor kahi mea e mālama ai i ka ikehu, hiki ke hoʻololi i ka ikehu uila a me ka ikehu magnetic i kekahi i kekahi, a hana nui i ka kānana, ka oscillating, ka hoʻopaʻa ʻana i kēia manawa a me ke kāohi ʻana i ka interference electromagnetic i ke kaapuni. Ke hoʻohana ʻia nā inductors i kēia kaapuni, pono ʻoe e ʻike i kēia mau ʻāpana o nā inductors!

Ke nānā ʻoe i kekahi mau schematics kaapuni, e ʻike ʻoe ua hoʻohana ʻia nā hōʻailona inductance i ke kaapuni. Ma hope o ka nānā ʻana i nā ʻāpana ma ka hōʻailona, ​​ua ʻoi aku koʻu huikau. I ka manawa hea i lilo ai ka ʻāpana o ka inductor i OHM? ʻO ka ʻoiaʻiʻo, ʻaʻole kēia he inductor, akā he bead magnetic. A laila, e hoʻohui mākou i kekahi ʻike e pili ana i ka ʻokoʻa a me ka pilina ma waena o nā inductors a me nā pahu magnetic.

E wehewehe mua i ka hana o nā peʻa magnetic i ke kaapuni, ʻo ka hana nui loa o nā moʻo magnetic i ka laina hoʻouna hōʻailona ʻo ia ke kāohi i ka hōʻailona interference, mai ke kumu kumu o ka ʻike, hiki i nā peʻa magnetic ke like me kahi inductor, e hoʻomaopopo i kēia. he inductor maʻalahi. Ua puunaue ka inductor coil i ka capacitance, ʻo ia hoʻi, ʻo ka inductor a mākou e hoʻohana ai ua like ia me kahi inductor i hoʻohui like ʻia me kahi capacitor puʻunaue.

Nānā o Inductance

ʻO ka manaʻo, e hoʻopau i ka hōʻailona interference i alakaʻi ʻia, koi ʻia ʻo ka nui o ka inductance, ʻoi aku ka maikaʻi, akā no ka inductor'ōwili hao , ʻoi aku ka nui o ka inductance, ʻoi aku ka nui o ka capacitance puʻunaue o ka inductor coil, a me nā hopena o nā mea ʻelua. e hoopau kekahi i kekahi.

I ka hoʻomaka ʻana, hoʻonui ka impedance o ka inductor coil me ka piʻi ʻana o ka pinepine, akā i ka piʻi ʻana o kona impedance i ka palena kiʻekiʻe, e emi koke ka impedance me ka piʻi ʻana o ke alapine, ʻo ia ka hopena o ka capacitance puʻunaue like. Ke piʻi aʻe ka impedance i ka palena kiʻekiʻe, ʻo ia kahi kahi i hoʻomāhele ʻia ai ka capacitance o ka inductor coil me ka inductor like i ka like. ʻO ka nui o ka inductance o ka inductor coil, ʻoi aku ka haʻahaʻa o ke alapine resonant. Inā makemake mākou e hoʻomaikaʻi hou i ke alapine suppression, a laila ʻo ka koho hope loa o ka inductor coil e lilo i kona palena liʻiliʻi, ʻo ka bead magnetic, ʻo ia hoʻi, ka inductor puʻuwai, he inductor coil me ka liʻiliʻi o 1 huli. Eia nō naʻe, ʻoi aku ka liʻiliʻi o ka capacitance puʻupuʻu o ka inductor through-core i nā manawa he mau manawa liʻiliʻi ma mua o ka coil inductor loop hoʻokahi, no laila ʻoi aku ka kiʻekiʻe o ke alapine hana o ka inductor ma waena o ka puʻuwai ma mua o ka mea hoʻokahi-loop inductor coil. . ʻOi aku ka liʻiliʻi o ka inductance o nā peʻa magnetic, ma waena o kekahi mau microbeads a me ka nui o nā microbeads. ʻO kahi hoʻohana ʻē aʻe o nā peʻa magnetic e hana i ka pale electromagnetic, ʻoi aku ka maikaʻi o kāna hopena pale electromagnetic ma mua o ka hopena pale o ka uea pale, ʻaʻole nui ka poʻe e nānā. ʻO ke ʻano o ka hoʻohana ʻana, ʻo ia ka hoʻokuʻu ʻana i nā uwea ʻelua e hele i waena o nā pahu magnetic, no laila ke kahe ka uila mai loko mai o nā uea pālua, ʻo ka hapa nui o ka mākēneki e hoʻopaʻa ʻia i loko o nā peʻa magnetic, ʻAʻole e hoʻomālamalama hou ke kahua i waho. Ma muli o ka hana ʻana o ka eddy i kēia manawa i loko o ka pahu magnetic, ʻo ke kuhikuhi o ke au eddy e hana ana i ka laina mana e kū pono ana i ka laina mana ma ka ʻili o ka mea hoʻokele, hiki ke kūʻē kekahi i kekahi. No laila, loaʻa i ka pahu magnetic kekahi hopena pale ma ke kahua uila, ʻo ia hoʻi, he hopena pale ikaika ka pahu magnetic i ke kahua electromagnetic i ka conductor.

ʻO ka pōmaikaʻi o ka hoʻohana ʻana i nā peʻa magnetic no ka pale electromagnetic ʻaʻole pono e hoʻopaʻa ʻia nā peʻa magnetic, a hiki ke pale ʻia ka pilikia o ka hoʻokumu ʻana i koi ʻia e ka uea pale. Me ka hoʻohana ʻana i nā peʻa magnetic e like me ka pale electromagnetic, no nā uea pālua, ua like ia me ka hoʻopili ʻana i kahi inductor suppression maʻamau i ka laina, he hopena hoʻopau ikaika i nā hōʻailona hoʻopilikia maʻamau.

Hiki ke ʻike ʻia ua hoʻohana nui ʻia ka coil inductor no ka hoʻopaʻa ʻana o EMI i nā hōʻailona interference haʻahaʻa haʻahaʻa, ʻoiai hoʻohana nui ʻia nā peʻa magnetic no ka hoʻopau ʻana o EMI i nā hōʻailona interference kiʻekiʻe. No laila, no ka hoʻopau ʻana o EMI i kahi hōʻailona interference ākea, pono e hoʻohana ʻia kekahi mau inductors o nā waiwai like ʻole i ka manawa like e pono ai. Eia kekahi, no ka hoʻopau ʻana i ke ʻano maʻamau i alakaʻi ʻia e ka EMI, pono mākou e hoʻolohe i ke kāohi ʻana i ke kūlana pili ma waena o ka inductor a me ka capacitor Y. ʻO ka Y capacitor a me ka suppression inductor pono e like me ka hiki ke hiki i ka hoʻokomo o ka mana lako, ʻo ia hoʻi, ke kūlana o ka puka mana, a ʻo ka mea kiʻekiʻe alapine e pili kokoke i ka capacitor Y, aʻo ka Y capacitor. pono e pili kokoke i ka uwea honua i pili i ka honua (ka uwea lepo o ke kaula mana ekolu-core), he mea pono ia no ka hoopau EMI.

ʻO ka mea i luna nei ka hoʻokomo ʻana i nā inductors maʻamau, inā makemake ʻoe e ʻike hou aku e pili ana i nā inductors, e ʻoluʻolu e leka uila iā mākou.