Ukushintsha ama-transformer ayadingeka ekushintsheni amandla kagesi.Ngakho-ke yini ukushintsha ama-transformer?Yiziphi izimiso zokusebenza kanye nemisebenzi yokushintsha ama-switchers?Masibaqonde.
·Isingeniso
I-switching transformer ibhekisela ku-transformer esetshenziswe ekushintsheni kwamandla kagesi.Isebenza esimweni sokushaya kwenhliziyo ngokuvama kweshumi kuya kwamashumi e-kilohertz noma ngisho namakhulu ama-kilohertz.I-iron core ngokuvamile yenziwe ngezinto ze-ferrite.
·Isimiso sokusebenza sokushintsha i-transformer
I-transformer iyisisetshenziswa se-electrostatic esenziwe kusetshenziswa umgomo wokungeniswa kwe-electromagnetic.Lapho ikhoyili eyinhloko ye-transformer ixhunywe kumthombo wamandla we-AC, umgogodla wensimbi ukhiqiza i-flux yamagnetic eshintshanayo.Ukunikezwa kwamandla okushintshwa kulawulwa yisekethe, futhi ishubhu yokushintsha ishintsha ngesivinini esikhulu.
Ukuguqula wamanje oqondile ukuya ku-high frequency alternating current kunikezwa ku-transformer ukuze iguqulwe, ngaleyo ndlela kukhiqize isethi eyodwa noma ngaphezulu yama-voltages.Njengoba ukusebenza kahle kwe-AC yemvamisa ephezulu kumjikelezo we-transformer kuphakeme kakhulu kune-50Hz, wonke ama-switch switchers angenziwa abe mancane kakhulu, ngaleyo ndlela anciphise izindleko.
·Tuneqhaza lokushintsha ama-transformer
Imisebenzi eyinhloko yokushintsha ama-transformer ukudluliswa kwamandla, ukuguqulwa kwe-voltage kanye nokufakwa.
Izinzuzo zayo eziyinhloko usayizi omncane, ukusebenza kahle okuphezulu, nokwelula okushibhile.Njengengxenye enkulu kagesi kazibuthe ethambile, ama-switching transformer asetshenziswa kakhulu ekushintsheni ubuchwepheshe bokuphakelwa kwamandla kanye nobuchwepheshe bamandla kagesi, futhi asetshenziswa kumasekhethi anemvamisa ephezulu njengokushintshwa kwamandla kagesi.
Ngokusho kwamandla okudlulisa we-switching transformer, ama-transformer amandla angahlukaniswa ngamabanga amaningana: i-10kVA ingamandla aphezulu, i-10kVA ~ 0.5kVA ingamandla aphakathi, 0.5kVA ~ 25VA amandla aphansi, futhi ngaphansi kuka-25VA amandla amancane.Amandla okudlulisa ahlukene, ukwakheka kwe-transformer yamandla nakho kuhlukile.I-ferrite core kanye ne-magnetic saturation coefficient yesiguquli samandla awalungile njengalowo we-silicon steel sheet core, okuholela emandleni amancane kakhulu nge-Hertz yokudluliswa kwamandla e-AC.Kodwa usebenza kumjikelezo we-high-frequency, futhi imvamisa yokushintshanisa amandla ngesikhathi ngasinye seyunithi iphezulu kakhulu (izikhathi eziyi-1000 kune-low-frequency transformer).Uma kuhlanganiswe, ukusebenza kahle kwayo kungafinyelela izikhathi eziningi kunama-low-frequency transformers.
·Omunye umsebenzi we-switching transformer ukuthi ine-feedback winding
Ukujika kwempendulo kunikeza isignali yempendulo eyakhayo ku-PWM IC, okuyenza ikhiqize i-oscillation ye-high-frequency kanye nokujika kwesibili, ukuze i-DC engena ekujikeni okuyinhloko kwe-transformer ibe nengxenye enkulu ye-AC, kanye ne-AC yefrikhwensi ephezulu. ingxenye ihlukaniswa yi-transformer core, eyenza i-Pure high-frequency AC yesibili, elungiswayo futhi ihlungwe ukuze inikeze imishini kagesi.Ukuvala impendulo kungalungisa i-voltage ephumayo ibe ivelu elizinzile.Ukufingqa, i-switching transformer idlala indima yokudluliswa kwamandla, ukuguqulwa kwe-voltage kanye nokufakelwa.
Isikhathi sokuthumela: Oct-07-2022