Transformer yachikhalidwe singagwire ntchito mwachindunji pamagetsi okhazikika a DC. Ma Transformers amadalira mphamvu ya maginito yomwe ikusintha kuti isamutsire mphamvu kuchokera ku makhondedwe ena kupita ku ena. Kusintha kwapano mwachilengedwe kumapangitsa kusintha kwa maginito. Direct current, pamene nthawi zonse, sichitero.
Ichi ndichifukwa chake chosinthira chamagetsi cholumikizidwa ndi DC sichingakweze ma voltage m'mwamba kapena kutsika momwemo. M'malo mwake, mafunde amatha kukhala ngati dera lalifupi pambuyo pakusintha kwakanthawi. Zotsatira zake zitha kukhala kutentha kwambiri, kupsinjika kwa insulation, ma fuse omwe amawombedwa, ma windings owonongeka, kapena kulephera kwa zida.
Komabe, ogula ambiri amafufuza a dc voltage transformer chifukwa amafunika kusintha magetsi a DC kukhala ena. Nthawi zambiri, chipangizo cholondola sichiri chosinthira chachikhalidwe chokha. Ndi chosinthira cha DC-DC, chosinthira magetsi, makina osinthira ma inverter, kapena chosinthira chamagetsi chomwe chimagwiritsa ntchito ma frequency apamwamba kwambiri kuti kutembenuka kwamagetsi kutheke.
Chifukwa Chake Ma Transformers Akufunika Kusintha Panopa
Transformer imakhala ndi mapindikidwe oyambira, mafunde achiwiri, komanso maginito. Pamene AC imayenda podutsa poyambira, mphamvuyi imakwera ndikutsika mosalekeza. Izi zimapanga kusintha kwa maginito pakatikati. Kusintha kumeneku kumapangitsa kuti magetsi azitha kuwirikiza kawiri.
Popanda kusintha, palibe kulowetsedwa kosalekeza.
Ndiyo mfundo yaikulu. Transformer simasamutsa mphamvu chifukwa chakuti magetsi alipo. Imasamutsa mphamvu chifukwa mphamvu ya maginito ikusintha. Kupezeka kwa AC kokhazikika kumapanga izi zokha.
DC alibe. Batire, mwachitsanzo, imapereka mphamvu yokhazikika kumbali imodzi. Mukalumikizidwa, mphamvuyo imatha kusintha pang'ono nthawi yomweyo, koma pambuyo pake mphamvu ya maginito imakhala yokhazikika.
Chimachitika ndi Chiyani Ngati DC Igwiritsidwa Ntchito pa Transformer?
Ngati DC yokhazikika ikugwiritsidwa ntchito pamayendedwe abwinobwino a thiransifoma, mavuto angapo amatha kuchitika.
Choyamba, chigawo cha transformer chikhoza kukhutitsidwa. Machulukidwe apakati amatanthauza kuti maginito sangathenso kuyankha moyenera ku mphamvu yowonjezera ya magnetizing.
Chachiwiri, mafunde amatha kukhala okwera kwambiri chifukwa kukana kwa mapiritsi nthawi zambiri kumakhala kochepa. Mu AC ntchito, inductive reactance malire panopa. Ndi DC, zomwe zimachitika sizimachita chimodzimodzi pambuyo pa nthawi yoyamba.
Chachitatu, kutentha kumachuluka mofulumira. Kuchulukirachulukira kumatha kuwononga zotchingira zopindika, kuwononga ziwalo zamkati, kapena kuwotcha thiransifoma.
Ichi ndichifukwa chake kulumikiza thiransifoma ya AC molunjika ku DC ndikosayenera ndipo sikuyenera kuchitika.
Chifukwa Chake Anthu Amati Ma DC Transformers Alipo
Mawu akuti dc voltage transformer ndizofala pakufufuza kwazinthu, koma nthawi zambiri zimakhala zachidule. M'chinenero chaumisiri weniweni, chinthucho chikhoza kukhala chimodzi mwa izi:
- DC-DC Converter
- Kusintha magetsi
- Isolated DC Converter
- Buck Converter
- Limbikitsani Converter
- Buck-boost Converter
- Inverter ndi transformer system
- High-frequency power module
Zidazi zimatha kusintha magetsi a DC, koma amazichita pakompyuta. Amayamba kuyatsa ndi kuyimitsa DC mwachangu, ndikupanga mawonekedwe osinthika. Kusintha kwa mafundewa kumatha kudutsa mu thiransifoma yothamanga kwambiri kapena inductor isanakonzedwe ndikuwongoleranso ku DC.
Chifukwa chake chosinthira chikhoza kukhalabe mkati mwa chipangizocho, koma sichikugwira ntchito kuchokera ku DC yokhazikika mwachindunji.
Momwe DC-DC Conversion Imagwirira Ntchito
Chosinthira cha DC-DC chimasintha voteji imodzi ya DC kukhala ina. Mwachitsanzo, imatha kusintha 48V DC kukhala 12V DC, 24V DC kukhala 5V DC, kapena 12V DC kukhala 48V DC.
Ndondomekoyi nthawi zambiri imaphatikizapo:
- Kusintha kolowera kwa DC pafupipafupi kwambiri
- Kusunga ndi kusamutsa mphamvu kudzera ma inductors kapena ma transfoma
- Kukonza mawonekedwe osinthika
- Kusefa zotuluka
- Kuwongolera ma voltage kudzera pamagetsi owongolera
Umu ndi momwe magetsi amakono amathandizira kuti magetsi a DC athe kusintha.
Isolated vs Non-Isolated DC Conversion
Sikuti otembenuza onse a DC ali ofanana.
Chosinthira chosadzipatula chimasintha voteji popanda kulekanitsa magetsi pakati pa zolowetsa ndi zotuluka. Buck and boost converters ndi zitsanzo wamba.
Chosinthira chokhacho chimagwiritsa ntchito chosinthira chapamwamba kwambiri mkati mwa dera. Izi zimapereka kulekanitsa magetsi pakati pa zolowetsa ndi zotulutsa, zomwe zingapangitse chitetezo, kuchepetsa njira zaphokoso, kapena kukwaniritsa zofunikira za dongosolo.
Ogula akapempha a dc voltage transformer, nthawi zambiri amafunikira chosinthira chapadera cha DC-DC m'malo mwa gawo losavuta losadzipatula.
Common Application
Kutembenuza kwamagetsi a DC kumagwiritsidwa ntchito m'mafakitale ambiri.
Zomwe zimagwiritsidwa ntchito ndizo:
- Kachitidwe ka batri
- Zipangizo zamagetsi zamagetsi
- Magalimoto amagetsi
- Telecom Power Systems
- Ulamuliro wa mafakitale
- Kuwala kwa LED
- Zamagetsi zapanjanji
- Machitidwe a mphamvu zam'madzi
- Makina opangira makabati
- UPS Systems
- DC microgrids
- Zida zolipirira
Nthawi iliyonse, chipangizo choyenera chimadalira mtundu wamagetsi, mphamvu yamagetsi, kufunikira kwa kudzipatula, kuchita bwino, kuzizira, chitetezo, ndi malo oyikapo.
AC Transformer vs DC-DC Converter
Transformer ya AC ndiyosavuta, yolimba, komanso yothandiza pakusintha kwamagetsi a AC. Amagwiritsidwa ntchito pamakina ogawa, mabwalo owongolera, makina amafakitale, ndi magetsi.
Chosinthira cha DC-DC ndi chipangizo chamagetsi chosinthira magetsi a DC. Itha kukhala ndi thiransifoma mkati, koma imaphatikizansopo zosinthira, mabwalo owongolera, zowongolera, ndi zosefera.
Kusiyanitsa kumafunika pakugula. Ngati cholowetsacho ndi AC, chosinthira chikhoza kukhala cholondola. Ngati cholowetsacho ndi DC, chosinthira cha DC-DC kapena makina osinthira magetsi nthawi zambiri amafunikira.
Zomwe Ogula Ayenera Kuwona
Musanasankhe zida, tsimikizirani izi:
- Kodi zolowetsazo ndi AC kapena DC?
- Kodi ma input voltage range ndi chiyani?
- Ndi mphamvu yanji yomwe ikufunika?
- Kodi pakufunika mphamvu kapena mphamvu zochuluka bwanji?
- Kodi kudzipatula kwamagetsi ndikofunikira?
- Kodi chikuyembekezeka kuchita chiyani?
- Ndi kutentha kotani komwe kumayendera?
- Kodi katunduyo ndi wopitilira kapena wapakatikati?
- Ndi chitetezo chotani chomwe chikufunika?
- Kodi chilengedwe chili m'nyumba, kunja, chinyezi, fumbi, kapena kutentha?
- Ndi mtundu wanji wokwera womwe ukufunika?
- Ndi milingo kapena ziphaso zotani zomwe zimagwira ntchito?
Mafunsowa amathandiza kupewa kugula thiransifoma pamene dongosolo likufunikiradi chosinthira.
Zolakwa Zomwe Muyenera Kuzipewa
Cholakwika chimodzi chodziwika bwino ndikulingalira kuti chipangizo chilichonse chamagetsi chitha kugwira ntchito ndi AC kapena DC. Izo sizingakhoze. Mtundu wolowetsa uyenera kufanana ndi mtengo wazinthu.
Cholakwika china ndikugwiritsa ntchito mawu akuti transformer pamagetsi aliwonse. Izi zitha kupangitsa kusankha kolakwika kwazinthu.
Kulakwitsa kwachitatu ndikunyalanyaza kudzipatula. Makina ena a DC amafuna kutulutsa kwapayekha kuti atetezedwe kapena kuwongolera phokoso, pomwe ena amatha kugwiritsa ntchito kutembenuka kosadzipatula.
Pomaliza, ogula apewe kulumikiza DC molunjika ku thiransifoma ya AC kuti ayesere. Izi zitha kuwononga thiransifoma mwachangu.
Mapeto
Zosintha zachikhalidwe sizingagwire ntchito molunjika pamagetsi okhazikika a DC chifukwa zimafuna kusintha kwa maginito. AC mwachilengedwe imapereka gawo losinthalo, pomwe DC yokhazikika sichita. Kuyika DC pa thiransifoma wamba kumatha kuyambitsa kuchulukira kwapakati, kuchulukirachulukira, kutenthedwa, ndi kuwonongeka.
Pamene anthu amafufuza a dc voltage transformer, nthawi zambiri amafunikira chosinthira cha DC-DC, chosinthira magetsi, kapena gawo lamagetsi lakutali. Kusankha koyenera kumadalira mphamvu yamagetsi, mphamvu zotulutsa, mphamvu yamagetsi, kudzipatula, kugwira ntchito bwino, ndi malo ogwirira ntchito.
Kuti mudziwe zambiri zamtundu wa transformer ndi voltage, pitani JS Ndinyi.
