Tlhahlobo ea transfoma ea phepelo ea motlakase ea maqhubu a phahameng haholo
Lihlahisoa tsa elektroniki tseo re kopanang le tsona letsatsi le letsatsi, re ka fumana palo e kholo eamagnetic corelikarolo, har'a tsona ho na le pelo eaho fetola phepelo ea motlakasemodule - theho fetola transformer. Matsatsing ana, lihlahisoa tsa elektroniki bophelong li na le litlhoko tse thata le ho feta bakeng sa ponahalo ea lihlahisoa tse nyane haholo le tse tšesaane haholo. Joaloka pelo ea mohloli oa matla a lihlahisoa tsena tsa elektronike, phepelo ea matla a ho fetola maqhubu a phahameng e na le melemo ea ho sebetsa hantle haholo, mocheso o motle le boholo bo fokolang. Ka hona, lihlahisoa tse ngata tsa elektroniki ke lisebelisoa tsa motlakase tse fetohang khafetsa. Joaloka litsebi tsa indasteri ea lisebelisoa tsa elektronike, u tlameha ho tseba ho hong ka transformer ea phepelo ea motlakase.
Transformer ke sesebelisoa se sebelisang molao-motheo oa induction ea electromagnetic ho fapanyetsana hona joale. Likarolo tsa eona tse ka sehloohong li kenyelletsakhoele ea pele, khoele ea bobelilemotheo oa tšepe.
Mosebetsing oa elektronike, hangata li-transformer li ka bonoa. Tšebeliso e atileng haholo ke mojuleng oa phepelo ea motlakase joalo ka phetolo ea motlakase le ho itšehla thajana:
①: Phetoho e ka aroloa ka mefuta e 'meli: ho ea holimo le ho theoha. Lisebelisoa tse ngata tsa ho fetola motlakase li theoha. Lihlahisoa tse joalo tsa elektroniki hangata li sebelisoa phepelong ea motlakase ea komporong, liadapter tsa lilaptop, li charger tsa mehala ea thelefono, lisebelisoa tsa motlakase tsa TV, cooker ea raese, lihatsetsi, li-induction cooker, lisebelisoa tsa motlakase, joalo-joalo. Tsena ke lisebelisoa tsa AC tse fetang borokhong bo lokisang le sefang se seholo sa capacitor. ho fumana DC e matla haholo.
②: Boosting hangata e sebelisoa ho lisebelisoa tsa motlakase tsa inverter kapa lithapo tsa DC-DC, tse nang le lisebelisoa tsa motlakase tsa tšohanyetso, 'me betri ea 12V e fetoleloa ho 220V e hlahisoang bakeng sa lisebelisoa tsa phepelo ea motlakase.
③: Ho itšehla thajana hahigh-frequency switching transformerske tlhokahalo ea polokeho ho netefatsa polokeho ea lisebelisoa tsa motlakase. Ha AC e kenya letsoho, switching transformer e tlameha ho ba le sebaka se sireletsehileng ho fihlella ho itšehla thajana pakeng tsa ho kenya letsoho ha AC le phepelo ea motlakase ea bobeli. Mokokotlo o ka sehloohong oa transformer o arotsoe ka tepi e sireletsang, 'me mahlakore a ka sehloohong le a bobeli a skeleton a arohane. AC e feta 'meleng oa motho ebe e theha lesela le lefats'e, e bakang kotsi ea ho tsamaisoa ha motho. Ho na le liteko tsa motlakase o phahameng ho li-transformer, tseo hangata li hlokang 3KV.
Kamano ea hajoale lipakeng tsa khoele ea mantlha le khoele ea bobeli:
Ha transformer e ntse e sebetsa ka mojaro, phetoho ea nako ea bobeli ea coil e tla etsa hore ho be le phetoho e lumellanang le hona joale ea coil e ka sehloohong. Ho ea ka molao-motheo oa ho leka-lekana ha matla a khoheli, ho nahanoa hore nako ea li-coil tsa mantlha le tsa bobeli e fapane ka tsela e fapaneng le palo ea li-coil tse fetohang. Ea hona joale ka lehlakoreng le nang le ho chenchana ho feta e nyane, 'me ea hona joale ka lehlakoreng le nang le likhahla tse fokolang e kholoanyane.
E ka hlalosoa ka mokhoa o latelang: khola ea mantlha ea hona joale / ea bobeli ea khola = ea bobeli e thinya/e thinya.
Lisebelisoa tsa coil tsa transformer li kenyelletsaterata e nang le enameled, terata e nang le likarolo tse tharo, foil ea koporo, leletlapa la koporo. Tepo e nang le enameled hangata e sebelisa terata e sothehileng ea mefuta e mengata. Molemo oa terata e sothehileng ea mefuta e mengata ke ho qoba phello ea letlalo la terata ea koporo, empa terata e sothehileng e nang le mefuta e mengata e ka baka lerata. Tharo-lera insulated terata e sebelisoa ka transformer le sebaka se sa lekaneng sa polokeho kapaskeleton e nyanesebakeng seo, 'me foil ea koporo le lakane ea koporo li sebelisoa ho li-transformer tse matla haholo.
Mokhoa oa ho tsoelipana oa coil o ka ntlafatsa EMI ea transformer, haholo-holo ka phepelo ea matla a tlase a flyback. Ho tsamaisa li-coil le ho sireletsa li bohlokoa haholo bakeng sa EMI. The matsoelintsoeke ea coil ama leakage inductance le parasitic capacitance ea transformer, 'me e na le tšusumetso ho tahlehelo ea transformer.
Phapang pakeng tsali-transformer tse fokolang khafetsaleli-transformer tse phahameng haholo:
① Maqhubu a ts'ebetso ea Transformer
Ho ea kamefuta e fapaneng ea ts'ebetso ea transformer, ka kakaretso e ka aroloa ka li-transformer tse tlaase-frequency le li-high-frequency transformer. Ka mohlala, bophelong ba letsatsi le leng le le leng, makhetlo a mangata a liindasteri AC ke 50Hz, 'me re bitsa transformer e sebetsang ka nako ena e fokolang-frequency transformer; athe maqhubu a ts'ebetso ea transfoma ea maqhubu a phahameng a ka fihla ho mashome a KHz ho makholo a KHz. Bakeng sa li-transformer tse fokolang haholo le li-transformer tse nang le matla a mangata a nang le matla a ts'oanang a ho hlahisa, molumo oa motlakase o fokolang haholo o monyenyane haholo ho feta oa motlakase o fokolang. Transformer ke karolo e batlang e le kholo ea potoloho ea phepelo ea motlakase. Ho etsa bonnete ba hore matla a hlahisoang ha a ntse a fokotsa molumo, ho lokela ho sebelisoa mochine o motlakase o phahameng haholo, kahoo mochine o motlakase o sebelisoang ka matla a ho fetola matla.
② Molao-motheo o sebetsang oa transformer
Molao-motheo oa ts'ebetso oa motlakase oa motlakase o phahameng le o fokolang o ts'oana. Ka bobeli li sebetsa holima molao-motheo oa induction ea motlakase, empa ho latela lisebelisoa tsa tlhahiso, lisebelisoa tse sebelisetsoang li-cores li fapane. Mokotla oa tšepe oa transformer ea maqhubu a tlase hangata o entsoe ka lishiti tse ngata tsa tšepe tsa silicon tse kopantsoeng hammoho, athe mokokotlo oa tšepe oa transformer ea maqhubu a phahameng o entsoe ka lisebelisoa tse phahameng tsa matla a khoheli.
③ Letšoao la phetisetso ea Transformer
Potolohong ea phepelo ea motlakase e tsitsitseng ea DC, sesebelisoa sa maqhubu a tlase se fetisa lets'oao la sine wave. Potolohong ea phepelo ea motlakase, sesebelisoa sa maqhubu a phahameng se fetisa leqhubu le phahameng la maqhubu a maqhubu a sekwere.
Mesebetsi e ka sehloohong ea transformer ke: phetoho ea motlakase; phetoho ea impedance; ho behwa ka thoko; matla a motlakase (magnetic saturation transformer), joalo-joalo. Li-transformer li sebelisoa hoo e batlang e le lihlahisoa tsohle tsa elektroniki 'me ke karolo ea bohlokoa haholo. Molao-motheo oa transformer o bonolo. Ho ea ka linako tse fapaneng tsa ts'ebeliso le ts'ebeliso e fapaneng, ts'ebetso ea matsoelintsoeke ea transformer le eona e tla ba le litlhoko tse fapaneng.
Lilemo tse 15 tsa moetsi oa likarolo tsa elektroniki
Nako ea poso: Oct-17-2024