Hoʻohana ʻia nā ʻāpana inductance SMD i kahi helu liʻiliʻi o nā kaapuni. Hoʻohana wale ʻia lākou ma ka hopena hoʻopuka o nā lako mana mana DC haʻahaʻa haʻahaʻa. Hiki iā lākou ke hoʻohana pū me nā capacitors kānana e hana i kahi kaapuni kānana π-like o CLC. . Hoʻokumu ʻia ka mea inductive me kahi coil hoʻokahi, ʻo kekahi me kahi kumu magnetic (inductance nui), hōʻike maʻamau ka ʻāpana ma μH a me mH, a ʻo ke kumukūʻai o kēia manawa he mau milliamps i nā haneli milliamps.
He aha nā ʻano ʻike o nā inductors SMD? SMD Shielded Power Inductor Factory e kaʻana like me ʻoe.
SMD inductor identification method, SMD inductors i loaʻa i ka poepoe, square a me ka rectangular packaging forms, and the color is most black. Me nā mea hoʻokomo i ka hao (a i ʻole nā mea hoʻoheheʻe pōʻai), maʻalahi ke ʻike mai ka helehelena. Eia naʻe, ʻoi aku ka like o kekahi mau inductors rectangular e like me nā resistors chip ma ke ʻano o ka helehelena. ʻO ka lepili o ka chip inductor ma ka papa kaapuni e ka mea hana inverter ua hōʻailona ʻia me ka huaʻōlelo L. ʻO nā ʻāpana hana o ka inductor e komo pū me ka inductance, Q value (quality factor), DC resistance, rate current, self-resonant frequency, etc. , akā ua kaupalena ʻia ka nui o ka chip inductor, a ʻo ka hapa nui o lākou e hōʻailona wale ʻia me ka inductance, a ʻaʻole i kaha ʻia nā ʻāpana ʻē aʻe, a ʻo ia ke ʻano Indirect labeling pinepine - ʻo ka lepili ma ke kino o ka chip inductor he ʻāpana wale nō ia o ka. ʻike o ka kikoʻī āpau a me ke ʻano hoʻohālike, ʻo ia hoʻi, ʻo ka hapa nui o ka ʻike inductance wale nō.
1. SMD inductor identification method:
1) Mai ka hiʻohiʻona, e like me ka inductor square a i ʻole circular me ka magnetic core, ʻoi aku ka nui o ka leo, a ʻike ʻia ke kumu magnetic a me ka coil;
2) ʻO kekahi mau mea hoʻokomo puʻupuʻu puʻupuʻu e like me nā mea kūʻē i ka chip i ka helehelena, akā ʻaʻohe helu a me nā leka i kaha ʻia, he kaha pōʻai liʻiliʻi wale nō, ʻo ia hoʻi nā ʻāpana inductance;
3) Hōʻailona pinepine ʻia nā helu serial o nā ʻāpana o ke kaapuni me ka leka L, e like me L1, DL1, etc.
4) Aia kahi lepili inductance, e like me 100.
5) He nui ke kū'ē AC o kahi inductor maikaʻi, aʻo ka pale DC he zero. ʻO ka waiwai kūʻē i ana ʻia o ka mea inductive he liʻiliʻi loa, me ka waiwai kūʻē kokoke i ka zero ohms. Me ka nānā ʻana a me ke ana ʻana (kūlana a me ka hana ma ke kaapuni), hiki iā ia ke hoʻokaʻawale i ka mea he mea pale pale a i ʻole ka mea hoʻokomo chip, a hoʻoholo i ka ʻāpana inductive.
6) E hoʻohana i kahi hōʻike inductance kūikawā e hoʻokaʻawale i ka ʻāpana mai ke kaapuni a ana i kona inductance.
2. Hoʻololi hewa:
1) Hiki ke hoʻoneʻe ʻia nā ʻāpana like ʻole mai ka papa kaapuni ʻōpala a pani ʻia
2) E hoʻoholo mua i ka inductance a me ke kahe ʻana o ka waiwai o kēia manawa, e hoʻololi iā ia me nā ʻāpana inductance alakaʻi maʻamau, a hoʻoponopono pono iā lākou.
3) ʻO ka hoʻololi ʻana iā ia iho, e hana ana i nā mea pani inductance, aia kekahi paʻakikī i ka hana
4) Inā ʻaʻohe hopena i ʻike ʻia i ka hana kaapuni, hiki ke hoʻoponopono pōkole ʻia ka hoʻoponopono pilikia
Manaʻo ʻia nā Chip Inductors e pono ai ka poʻe hou aku
Pehea e koho ai i kahi inductor e like me kāu pono
Ke koho ʻana i kahi huahana, e koho mau i ka huahana ma muli o nā pono o waho. Pēlā nō ia no ka Integrated molding chip inductance , pono ʻoe e noʻonoʻo i nā kumu, a laila koho i nā inductors chip pono hoʻokahi, nā inductors i pale ʻia, a me nā inductors mana chip. Nui nā mea e pili ana i ka chip inductor. E kamaʻilio e pili ana i ke koho ʻana i ka chip inductor e like me nā pono.
1. E koho i ka inductor e like me ka pono
Ke koho ʻana i kahi inductor chip no kahi noi mana lawe, pono e noʻonoʻo ʻia ʻekolu mau mea nui: ka nui a me ka nui, a ʻo ke kolu ka nui. He uku ka nui o ka lumi papa kaapuni ma nā kelepona paʻalima, ʻoi aku ka nui o nā hana e like me nā mea pāʻani, nā TV a me nā wikiō i hoʻohui ʻia i ke kelepona. ʻO ka hoʻonui ʻana i ka hana e hoʻonui pū i ka huki o kēia manawa o ka pākaukau. No laila, ʻo nā modula i hoʻohana maʻamau ʻia e nā mea hoʻoponopono laina a i ʻole i hoʻopili pololei ʻia i nā pākaukau e koi i nā hopena mana kiʻekiʻe. ʻO kahi ʻanuʻu i kahi hopena mana kiʻekiʻe ke hoʻohana ʻana i kahi mea hoʻololi hoʻololi magnetic.
Ma kahi o ka nui, ʻo nā kumu nui o ka inductance ka waiwai inductance ma ke alapine hoʻololi, ka DC impedance o ka coil, ka hoʻonui saturation o kēia manawa, ka RMS hou aʻe, ke kamaʻilio impedance ESR a me ke kumu. Ma muli o ka noi, he mea koʻikoʻi hoʻi ke koho ʻana o ke ʻano inductor i pale a pale ʻole paha.
E like me ka DC bias i loko o kahi capacitor, ʻokoʻa ʻokoʻa ka mea hoʻokomo ʻo 2.2µH o Vendor A mai ka Vendor B. ʻO ka pilina ma waena o ka waiwai inductance a me ka DC o kēia manawa o ka chip inductor i ka pae wela kūpono he ʻano koʻikoʻi nui, pono e loaʻa mai ka mea hana. Hiki ke loaʻa ka ʻokoʻa saturation hou (ISAT) ma kēia pihi. Ua wehewehe ʻia ka ISAT ma ke ʻano he hāʻule o ka waiwai inductance. ʻO ka manawa DC inā he 30[[%]] o ka waiwai keu. ʻAʻohe ISAT maʻamau i kekahi mau mea hana inductor. Ua hāʻawi paha lākou i ka mana DC inā he 40°C ke kiʻekiʻe o ka mahana ma mua o ka mahana ambient.
Ke ʻoi aku ka nui o ka hoʻololi ʻana ma mua o 2MHz, pono e nānā pono i ka nalowale o ke kamaʻilio o ka inductor. ʻO ka ISAT a me DCR o nā inductors o nā mea hana like ʻole i helu ʻia i ka kikoʻī maʻamau he ʻokoʻa loa nā impedances kamaʻilio ma ke alapine hoʻololi, e hopena i ka mana ʻike ma lalo o ka haʻahaʻa māmā. ʻokoʻa. He mea koʻikoʻi kēia i ka hoʻomaikaʻi ʻana i ke ola pākaukau ma nā ʻōnaehana mana lawe lima, e hoʻolilo i ka hapa nui o ko lākou manawa i ka hiamoe, standby, a i ʻole ka mana haʻahaʻa.
No ka mea ʻaʻole hāʻawi pinepine nā mea hana chip inductor i ka ʻike ESR a me Q, pono nā mea hoʻolālā e nīnau iā lākou. ʻO ka pilina ma waena o ka inductance a me ka manawa i hāʻawi ʻia e ka mea hana i kaupalena pinepine ʻia i 25 ° C, no laila e loaʻa nā ʻikepili kūpono i loko o ka pae wela hana. ʻO ka 85°C ka hihia ʻino loa.
Hana kūikawā ana i loko o ka? Iecaianoaaiiie o acee? Iuo oeiia o kaʻeleʻele o ke komo lima inductors, lei inductors, vertical inductors, Tripod inductors, one inductors, ka hoaka o inductors, e like me ka pololei coils, kiʻekiʻe-alapine (frequency) transformers a me nāʻume mākenēki eiiiiiaiou.
Ka manawa hoʻouna: Sep-02-2022