KODI SWITCHING POWER SUPPLY TRANSFORMER NDI CHIYANI?KODI ZIMACHITITSA BWANJI?

Kusintha ma transfoma ndikofunikira pakusintha magetsi.Ndiye kusintha ma transfoma ndi chiyani?Mfundo zogwirira ntchito ndi ntchito zosinthira ma transfoma ndi ziti?Tiyeni tiwamvetse.

 

·Mawu Oyamba

Transformer yosinthira imatanthawuza chosinthira chomwe chimagwiritsidwa ntchito posinthira magetsi.Zimagwira ntchito pamtundu wa pulse ndi mafupipafupi khumi mpaka makumi a kilohertz kapena mazana a kilohertz.Pakatikati pachitsulo nthawi zambiri amapangidwa ndi ferrite.

           

·Mfundo yogwira ntchito yosinthira thiransifoma

Transformer ndi chipangizo cha electrostatic chopangidwa pogwiritsa ntchito mfundo ya electromagnetic induction.Pamene koyilo yoyambirira ya thiransifoma imalumikizidwa ndi gwero lamagetsi la AC, pachimake chitsulo chimapanga kusinthana kwa maginito.Mphamvu yosinthira magetsi imayendetsedwa ndi dera, ndipo chubu chosinthira chimasinthasintha pa liwiro lalikulu.

Kutembenuza kwachindunji kukhala ma frequency alternating current kumaperekedwa kwa thiransifoma kuti isinthidwe, potero kumapanga seti imodzi kapena zingapo za ma voltages.Popeza mphamvu ya ma frequency apamwamba a AC mu thiransifoma ndi yokwera kwambiri kuposa 50Hz, zosintha zonse zimatha kukhala zazing'ono kwambiri, potero zimachepetsa mtengo.

 

·Tali ndi udindo wosintha ma transfoma

Ntchito zazikuluzikulu zosinthira thiransifoma ndikutumiza mphamvu, kutembenuka kwamagetsi ndi kutchinjiriza.

Ubwino wake waukulu ndi kukula kwaling'ono, kuchita bwino kwambiri, komanso kutambasula kotsika mtengo.Monga gawo lalikulu lofewa la maginito amagetsi, zosinthira zosinthira zimagwiritsidwa ntchito kwambiri posinthira ukadaulo wamagetsi ndi ukadaulo wamagetsi amagetsi, ndipo amagwiritsidwanso ntchito pamayendedwe apamwamba kwambiri monga kusintha magetsi.

 

Malinga ndi mphamvu yotumizira ya thiransifoma, osintha mphamvu amatha kugawidwa m'magulu angapo: 10kVA ndi mphamvu yayikulu, 10kVA ~ 0.5kVA ndi mphamvu yapakatikati, 0.5kVA ~ 25VA ndi mphamvu yochepa, ndipo pansi pa 25VA ndi mphamvu yaying'ono.Kusiyana mphamvu kufala, kamangidwe ka thiransifoma mphamvu ndi osiyana.Pakatikati pa ferrite ndi maginito odzaza mphamvu ya chosinthira mphamvu sizofanana ndi chitsulo chachitsulo cha silicon, zomwe zimapangitsa kuti pakhale mphamvu zochepa pa Hertz ya AC mphamvu yosinthira.Koma amagwira ntchito mozungulira kwambiri, ndipo ma frequency osinthira mphamvu pa nthawi ya unit ndi yayikulu kwambiri (nthawi 1000 kuposa ya otsika-frequency transformer).Kuphatikizidwa pamodzi, mphamvu zake zimatha kufika maulendo angapo kuposa ma transformer otsika kwambiri.

 

·Ntchito ina ya transformer yosinthira ndikuti imakhala ndi mayankho

Kuwongolera kwa mayankho kumapereka chidziwitso chabwino kwa PWM IC, ndikupangitsa kuti ipangitse kugwedezeka kwapang'onopang'ono pamodzi ndi mafunde achiwiri, kotero kuti DC yomwe imalowa m'mphepete mwa thiransifoma imakhala ndi gawo lalikulu la AC, komanso ma frequency apamwamba a AC. chigawocho chimasiyanitsidwa ndi chigawo cha transformer, ndikupanga yachiwiri Pure high-frequency AC, yomwe imakonzedwa ndikusefedwa kuti ipereke zida zamagetsi.Kubwereza kwa mayankho kumatha kusintha mphamvu yamagetsi kuti ikhale yokhazikika.Pomaliza, thiransifoma yosinthira imagwira ntchito yotumiza mphamvu, kutembenuka kwamagetsi ndi kusungunula.