ʻIke hoʻololi

ʻO Transformer kahi mea hana e hoʻohana ai i ka manaʻo induction electromagnetic e hoʻololi i ka volta AC.ʻO kāna mau mea nui e pili ana i ka wili kumu, ka lua a me ka hao hao.

Ma kaʻoihana uila, hiki iāʻoe keʻike pinepine i ke aka o ka mea hoʻololi,ʻo ka mea maʻamau i hoʻohanaʻia i ka mana e like me ka voltage hoʻololi, kaʻawale.

I ka pōkole, ua like ka lakio voltage o nā wili mua a me ka lua me ka ratio huli o nā wili mua a me nā lua.No laila, inā makemake ʻoe e hoʻopuka i nā voltages like ʻole, hiki iā ʻoe ke hoʻololi i ka ratio huli o nā coils.

Wahi a nā alapine hana like ʻole o nā mea hoʻololi, hiki ke hoʻokaʻawale ʻia lākou i nā mea hoʻololi haʻahaʻa haʻahaʻa a me nā transformers kiʻekiʻe.No ka laʻana, i ke ola o kēlā me kēia lā, ʻo 50Hz ka alapine o ka mana alapine o kēia manawa.Kāhea mākou i nā transformers e hana ana ma kēia alapine (frequency transformers);Hiki i ke alapine hana o ka transformer kiʻekiʻe ke piʻi i ka ʻumi o kHz a i nā haneli o kHz.

ʻOi aku ka liʻiliʻi o ka mea hoʻololi kiʻekiʻe ma mua o ka mea hoʻololi haʻahaʻa me ka mana hoʻopuka like.

ʻO ka transformer kahi mea nui i loko o ke kaapuni mana.Inā makemake ʻoe e liʻiliʻi i ka leo me ka hōʻoia ʻana i ka mana hoʻopuka, pono ʻoe e hoʻohana i ka transformer kiʻekiʻe.No laila, hoʻohana ʻia nā transformers kiʻekiʻe i ka hoʻololi ʻana i nā lako mana.

ʻO ke kumu hana o ka mea hoʻololi kiʻekiʻe a me ka mea hoʻololi haʻahaʻa haʻahaʻa like ia, ʻo ia mau mea ʻelua e pili ana i ke kumu o ka electromagnetic induction.Eia naʻe, ma keʻano o nā mea waiwai, hoʻohana ko lākou "cores" i nā mea likeʻole.

Hoʻopili ʻia ke kumu hao o ka mea hoʻololi haʻahaʻa haʻahaʻa me nā ʻāpana kila silika, ʻoiai ʻo ke kumu hao o ka transformer kiʻekiʻe i haku ʻia me nā mea magnetic kiʻekiʻe (e like me ferrite).(No laila, ʻo ke kumu hao o ka mea hoʻololi kiʻekiʻe-frequency i kapa ʻia ʻo ka magnetic core)

I ka DC stabilized voltage power supply circuit, haʻahaʻa-frequency transformer transmiter sine wave signal.

I ka hoʻololi ʻana i ka mana lako kaapuni, kiʻekiʻe-frequency transformer lawe kiʻekiʻe-frequency pulse square wave signal.

Ma ka mana helu, ua kapa ʻia ka ratio ma waena o ka mana hoʻopuka a me ka mana hoʻokomo o ka mea hoʻololi.Ke like ka mana o ka mea hoʻololi me ka mana hoʻokomo, ʻo 100%.ʻO kaʻoiaʻiʻo,ʻaʻole i loaʻa ka mea hoʻololi, no ka mea, aia ka poho keleawe a me ka hao, e loaʻa i ka transformer kekahi mau poho.

He aha ka poho keleawe?

No ka mea, he kū'ē ko ka transformer coil, i ka wā e hele ai ke au i loko o ka coil, e lilo kekahi hapa o ka ikehu i ka wela.No ka mea, ua ʻeha ʻia ka wili transformer me ka uea keleawe, ua kapa ʻia kēia poho i ka poho keleawe.

He aha ka poho hao?

ʻO ka poho hao o ka transformer ka mea nui i ʻelua mau ʻano: hysteresis poho a me eddy current loss;ʻO ka nalowale ʻana o ka hysteresis e pili ana i ka wā e hele ai ke au i loko o ka pōʻai, e hana ʻia nā laina mana o ka ikaika e hele ma ke kumu hao, a ʻo nā molekala i loko o ke kumu hao e ʻānai kekahi i kekahi no ka hoʻoulu ʻana i ka wela, no laila e pau ai ka ikehu uila;Ma muli o ka hele ʻana o ka laina mana o ka ikaika ma ke kumu hao, e hoʻopuka pū ke kumu hao i ke au i hoʻokomo ʻia.No ka wili ʻana o ke au, ua kapa ʻia ʻo ia eddy current, a ʻo ka lilo ʻana o ke au e hoʻopau i kekahi ikehu uila.