ʻO ka pilina ma waena o Magnetic Ring Color a me nā mea | GETWELL

Pono e pena ʻia ka hapa nui o nā apo magnetic no ka hoʻokaʻawale ʻana. ʻO ka maʻamau, ʻokoʻa nā ʻāpana hao pauka e nā kala ʻelua, e like me ka ʻulaʻula / aniani, melemele / ʻulaʻula, ʻōmaʻomaʻo / ʻulaʻula, ʻōmaʻomaʻo / uliuli a melemele / keʻokeʻo, pena ʻia nā apo manganese kumu i ka ʻōmaʻomaʻo, hao, silicon a me ka alumini ka mea maʻamau. , a laila. ʻO ka ʻoiaʻiʻo, ʻaʻohe pili o ke kala o ke apo magnetic ma hope o ke kī ʻana i ka pena pena ma hope o ka pulupulu ʻana, he ʻaelike wale nō ia ma ka ʻoihana. No ka laʻana, hōʻike ka ʻōmaʻomaʻo i ke apo conductivity magnetic kiʻekiʻe; ʻelua kala e hōʻike ana i ka pauka hao i ke apo magnetic ; ʻeleʻele e hōʻike ana i ka hao-silikona-aluminum apo magnetic a pēlā aku.

kiʻekiʻe magnetic conductivity apo

ʻO ke apo magnetic inductor , pono e ʻōlelo iā Ni-Zn ferrite magnetic ring. Hoʻokaʻawale ʻia nā apo magnetic i Ni-Zn a me mn-Zn e like me nā mea. Hoʻololi ka permeability o nā apo ferrite Ni-Zn mai 15 a 2000. ʻO nā mea maʻamau i hoʻohana ʻia ʻo Ni-Zn ferrites me ka permeability ma waena o 100 a me 1000. E like me ka helu permeability, ua māhele ʻia nā ferrites Ni-Zn i nā mea haʻahaʻa haʻahaʻa. ʻOi aku ka nui o nā apo magnetic mn-Zn ferrite ma mua o 1000, no laila ua kapa ʻia nā apo magnetic i hana ʻia e nā mn-Zn ferrites he mau apo conductivity kiʻekiʻe.

Hoʻohana maʻamau ʻia nā apo ferrite Ni-Zn no ka anti-interference i nā ʻano uea āpau, ka hopena o ka papa kaapuni a me nā lako kamepiula. Hiki ke hoʻohana ʻia nā apo ferrite Mn-Zn e hana i nā cores, nā poʻo a me nā koʻokoʻo antenna o nā mea hoʻokomo , nā mea hoʻololi a me nā kānana. Ma keʻano laulā, ʻoi aku ka haʻahaʻa o ka permeability o ka mea, ʻoi aku ka nui o ka laulā kūpono e pili ana; ʻoi aku ka kiʻekiʻe o ka permeability o ka mea, ʻoi aku ka liʻiliʻi o ke alapine kūpono.

apo māneʻe ka pauka hao

He huaʻōlelo kaulana ka Iron powder core no ka mea magnetic iron oxide, ka mea i hoʻohana nui ʻia i nā kaʻa uila e hoʻonā i ka pilikia o ka electromagnetic compatibility (EMC). Ma ka hoʻohana pono ʻana, e hoʻohui ʻia nā ʻano mea ʻē aʻe e like me nā koi kānana ʻokoʻa i nā hui like ʻole.

ʻO ke kumu hoʻoheheʻe magnetic mua he "paʻa" metala palupalu palupalu i kaomi ʻia e ka hao-silicon-aluminum alloy magnetic pauka. ʻO kēia ʻano mea hao-silicon-aluminum magnetic pauka kumu i kapa ʻia ʻo "iron powder core". ʻO kāna kaʻina hana hoʻomākaukau maʻamau penei: ʻo ka pauka magnetic o Fe-Si-Al alloy ua pālahalaha ʻia e ka wili pōleʻa a uhi ʻia me ka insulating layer ma ke ʻano kemika, a laila e pili ana i ka 15wt% binder e hoʻohui ʻia, hui pū ʻia, hoʻoheheʻe ʻia a paʻa, a me ka huahana. hana ʻia e ka hoʻomaʻamaʻa wela (hoʻomaha hoʻoluhi) ma hope o Z. ʻO kēia huahana "ka pauka hao" hana maʻamau i ka pauka 20kHz 200kHz. No ka mea he nui loa ko lākou saturation flux density, ʻoi aku ka maikaʻi o ka DC superposition hiʻohiʻona, magnetostrictive coefficient kokoke i ka zero, ʻaʻohe walaʻau, ʻoi aku ka maikaʻi o ka paʻa a me ka ratio kiʻekiʻe o ka hana-i-kumukūʻai ma mua o nā ferrites e hana ana i ka hui alapine like, ua hoʻohana nui ʻia lākou i ka uila. nā mea e like me nā mea hoʻololi uila uila kiʻekiʻe. ʻO kā lākou hemahema, ʻaʻole wale nā ​​​​mea hoʻopihapiha non-magnetic e hoʻohua i ka dilution magnetic, akā e hoʻopau i ke ala flux, a ke alakaʻi nei ka demagnetization kūloko i ka emi o ka permeability.

ʻOkoʻa ka pahu hao kiʻekiʻe i hoʻomohala ʻia e Z i kēia manawa mai ka hao-silicon-aluminum magnetic powder core, ʻo ka mea maka i hoʻohana ʻia ʻaʻole ia he alloy magnetic pauka akā ʻo ka pauka hao maʻemaʻe i uhi ʻia me ka papa insulating, a ʻo ka nui o ka mea paʻa he nui loa. liʻiliʻi, no laila ua hoʻomaikaʻi nui ʻia ka nui o ka flux magnetic. Hana lākou ma ka waena a me ke alapine haʻahaʻa ma lalo o 5kHz, maʻamau he mau haneli hertz, ʻo ia hoʻi, ʻoi aku ka haʻahaʻa ma mua o ke alapine hana o Fe-Si-Al magnetic powder core. ʻO ka mākeke pahuhopu ke hoʻololi i ka ʻāpana kila silika i hoʻohana ʻia i ka kaʻa no ka haʻahaʻa haʻahaʻa, kiʻekiʻe kiʻekiʻe a maʻalahi hoʻi e hoʻokō i ka hoʻolālā ʻekolu-dimensional.

Fe-Si-Al apo magnetic

ʻO ke apo magnetic Fe-Si-Al kekahi o nā apo magnetic me ka hoʻohana kiʻekiʻe. No ka maʻalahi, ʻo Fe-Si-Al ka Al-Si-Fe a loaʻa iā Bmax kiʻekiʻe loa (ʻo Bmax ka awelika Z ka nui o ka flux density ma ka ʻāpana cross-sectional o ke kumu.). ʻOi aku ka haʻahaʻa o kona pohō nui ma mua o ka pauka hao a me ka flux kiʻekiʻe, he magnetostriction haʻahaʻa (haʻahaʻa haʻahaʻa), he mea mālama haʻahaʻa haʻahaʻa haʻahaʻa, ʻaʻohe wela wela, hiki ke hoʻohana ʻia e pani i ka pauka hao, a me kāna hana. paʻa loa i ka wela kiʻekiʻe.

ʻO ka hiʻohiʻona nui o Fe-Si-Al Z ʻo ia ka haʻahaʻa haʻahaʻa ma mua o ka pauka hao a loaʻa nā hiʻohiʻona DC bias maikaʻi. ʻAʻole Z kiʻekiʻe ke kumu kūʻai, akā ʻaʻole Z haʻahaʻa, ke hoʻohālikelike ʻia me ka pauka hao a me ka hao nickel molybdenum.

Loaʻa i ka Fe-Si-Al magnetic powder core nā waiwai magnetic maikaʻi loa, haʻahaʻa haʻahaʻa haʻahaʻa a me ke kiʻekiʻe flux density. Loaʻa iā ia ka hilinaʻi kiʻekiʻe e like me ke kūpaʻa wela, ke kūpaʻa haʻahaʻa a me ke kūpaʻa vibration ke hoʻohana ʻia i ka pae wela o-55C ~ + 125C.

I ka manawa like, loaʻa kahi ākea permeability ākea o 60 a 160. ʻO ia ke koho maikaʻi loa no nā chokes output, PFC inductors a me resonant inductors o ka hoʻololi ʻana i ka mana lako, a he kiʻekiʻe ka hana-i-kumuki ratio.

ʻO ka mea i luna nei ka hoʻolauna ʻana o ka pilina ma waena o ke kala apo magnetic a me nā mea. Inā makemake ʻoe e ʻike hou aku e pili ana i nā inductors, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.