iindaba

Intshayelelo yeTransformer
Isetyenziselwa ikakhulu: iiswitshi zedijithali ezisebenza kakhulu;Izixhobo zothumelo zeSDH/ATM;ISDN.ADSL.VDSL.POE izixhobo zedatha yenkonzo edibeneyo;I-FILT yezixhobo zefiber optical loop;Ukutshintsha kwe-Ethernet, njl.!Iimpompo zedatha zizixhobo ezifumaneka kumakhadi womnatha we-PCI wodidi lwabathengi.Iimpompo zedatha zikwabizwa ngokubai-network transformersokanye iziguquli zokwahlulwa kwenethiwekhi.Inemisebenzi emibini ephambili kwikhadi lenethiwekhi, enye kukuhambisa idatha, isebenzisa imowudi yokudibanisa icoil ukucoca i-PHY yesiginali yokwahlula ukukhulisa umqondiso, kwaye iguqulela ukudibanisa kumanqanaba ahlukeneyo ngokusebenzisa umhlaba wemagnethi ukudibanisa esinye isiphelo intambo yenethiwekhi;enye kukukhusela uqhagamshelo lwentambo yomnatha Amanqanaba ahlukeneyo phakathi kwezixhobo zomsebenzi womnatha ezahlukeneyo ukuthintela umbane ohlukeneyo kwizixhobo ezonakalisayo ngokuhambisa intambo yomnatha.Ukongeza, i-data mercury inokudlala indima ethile ekukhuseleni umbane kwizixhobo.
Ukusebenza kweTransformer:
Kwizixhobo ze-Ethernet, ngokwezixhobo ze-Ethernet, i-PHY ixhunyiwe kwinqanaba le-RJ45, kwaye i-transformer yenethiwekhi iya kongezwa phakathi.Ezinye ii-transformers zifikelela emhlabeni.Kwaye xa unikezelo lwamandla luqhagamshelwe, ixabiso lombane lingahluka, 3.3V, 2.5V, kunye ne-1.8V.
Indima yoGuquli:
1. Ukwahlulwa kombane
Inqanaba lomqondiso oveliswa yiyo nayiphi na i-chip ye-CMOS lihlala lilikhulu kune-0V (kuxhomekeke kwimveliso kunye neemfuno zoyilo lwe-chip), kwaye i-PHY iya kuba nelahleko enkulu yecandelo le-DC xa umqondiso wemveliso uthunyelwa kwindawo yeemitha ezili-100. okanye ngaphezulu.Ukuba intambo yenethiwekhi yangaphandle iqhagamshelwe ngokuthe ngqo kwitshiphu, ukungeniswa kwe-electromagnetic (umbane) kunye nombane omileyo unokonakalisa ngokulula itshiphu.
Emva koko kukho iindlela ezahlukeneyo zokumisa izixhobo.Imimandla eyahlukeneyo yegridi yamandla iya kukhokelela kumanqanaba angahambelaniyo e-0V kumacala omabini, kwaye umqondiso uhanjiswa ukusuka ku-A ukuya ku-AB.Ngenxa yokuba inqanaba le-0V lesixhobo A kunye nenqanaba le-0V lenqaku B lahlukile, linokubangela ukuba umsinga omkhulu uphume kwisakhono esinamandla.Izixhobo zingena kwisixhobo esinamandla aphantsi.
Isiguquli sothungelwano sisebenzisa imowudi yokudibanisa ikhoyili ukuhluza isiginali ye-PHY yokwahluka ukwandisa umqondiso, kunye nokuguqula ukudibanisa kwelinye isiphelo sentambo yoqhagamshelo lwenethiwekhi ngokusebenzisa umhlaba wemagnethi.Oku akukona nje ukwenza intambo yenethiwekhi kunye ne-PHY ayinakho uxhulumaniso lomzimba phakathi kwabo, isibonakaliso sitshintshwa kwaye sidluliselwe, icandelo le-DC kwisiginali linqunyulwe, kodwa kwakhona idatha ingadluliselwa kwizixhobo ezahlukeneyo ze-0V.
I-transformer yenethiwekhi ekuqaleni yayiyilwe ukuba imelane nombane we-2KV ~ 3KV.Ikwasebenza njengokhuseleko lombane.Izixhobo zenethiwekhi zabanye abahlobo zitshiswa ngokulula ngeendudumo, uninzi lwazo ziindudumo.Ngenxa yoyilo olungekho ngokwenzululwazi lwePCB, kwaye ujongano olukhulu lwezixhobo lutshisiwe, iitshiphusi ezimbalwa ziyatshiswa, kwaye i-transformer idlala indima yokukhusela.
I-transformer ekhuselayo inokuhlangabezana neemfuno zokufakelwa kwe-IEEE802.3, kodwa ayikwazi ukucinezela i-EMI.
2. Ukugatywa kwemodi eqhelekileyo
Intambo nganye kwibini ephothiweyo kufuneka ijikelezwe enye kwenye i-helix ephindwe kabini.Umhlaba wemagnethi owenziwe ngumsinga oqukuqelayo ngocingo ngalunye ubotshwa yi-spiral.Isalathiso somsinga oqukuqelayo ngocingo ngalunye lwesibini esijijekileyo simisela inqanaba lengxolo ekhutshwa lucingo ngalunye.Amanqanaba okuhanjiswa okubangelwa yimodi yokwahlula kunye nemisinga yemowudi eqhelekileyo yomqhubi ngamnye iyahluka.Ukuhanjiswa kwengxolo okubangelwa yimowudi yokwahluka kwangoku kuncinci, kwaye ingxolo igqitywe ikakhulu yimowudi eqhelekileyo yangoku.
1. Isignali yemowudi eyahlukileyo kwisibini esijijekileyo
Kwiimpawu zemo yokwahlula, umsinga wayo kucingo ngalunye uhamba ngendlela echaseneyo kwiperi yeengcingo.Ukuba iingcingo ezimbini bezibhijelwe ngokufanayo, le misinga ichaseneyo beziya kuvelisa amandla emagnethi achaseneyo anobukhulu obufanayo, nto leyo eyenza ukuba imisinga yawo imelane.
2. Umqondiso wemowudi eqhelekileyo kwisibini esijijekileyo
Imowudi eqhelekileyo yangoku ihamba ngendlela efanayo kwiingcingo zombini kwaye ibuyela emhlabeni nge-parasitic capacitor Cp.Kule meko, imisinga ivelisa imimandla yamagnetic yobukhulu obufanayo kunye ne-polarity, i-derivations engakwazi ukumelana nomnye.Imowudi yemowudi eqhelekileyo yenza umhlaba wemagnethi kumphezulu ojijekileyo, osebenza ngokufanayo ne-eriyali.
3. Imodi eqhelekileyo, ingxolo yemowudi eyahlukileyo kunye ne-EMC yayo
Kukho iindidi ezimbini zengxolo kwiintambo: ingxolo ephumayo kunye nengxolo yokuhambisa evela kumandla kunye neentambo zesignali.Ezi ndidi zimbini zohlulwe zibe yingxolo yemowudi eqhelekileyo kunye nengxolo yemo yokwahlukana.Ingxolo yothumelo lwemowudi eyahlukileyo yingxolo yangoku eveliswa yingxolo yombane ngaphakathi kwesixhobo sombane esilandela indlela efanayo nanjengoko umqondiso wangoku okanye unikezelo lwangoku, njengoko kubonisiwe kuMfanekiso 4. Indlela yokunciphisa le ngxolo kukubeka iikhoyili zokuminxa kwimowudi yokwahlukana. uchungechunge kumgca wamandla kunye nentambo yamandla.Isihluzi sokupasa esisezantsi siquka i-capacitor okanye i-capacitor kunye ne-inductor ngokunxuseneyo ukunciphisa ingxolo ephezulu.
Amandla entsimi aveliswa yile ngxolo ngokuphambeneyo kumgama ukusuka kwintambo ukuya kwindawo yokujonga, ehambelana ngokufanelekileyo nesikwere sefrikhwensi, kwaye inxulumene nekhoyo kunye nendawo yelophu yangoku.Ke ngoko, indlela yokunciphisa le radiation kukongeza i-LC yokucoca i-low-pass filter kwigalelo lomqondiso ukuthintela ingxolo yangoku ukuba ingangeni kwintambo;iintambo ezikhuselweyo okanye ezisicaba kufuneka zisetyenziswe ukuthwala imbuyekezo yangoku kunye nomqondiso wangoku ukunciphisa indawo yelophu.
Imowudi eqhelekileyo eyenziwa ingxolo yenziwa yingxolo yangoku ehamba phakathi komhlaba kunye nentambo ngokusebenzisa i-parasitic capacitance phakathi komhlaba kunye nezixhobo, eqhutywa yi-voltage yengxolo kwisixhobo.
Indlela yokunciphisa ingxolo yokuhanjiswa kwemowudi eqhelekileyo kukuqhagamshela imowudi yekhoyili yokukrwitsha kuthotho kumgca wombane okanye kumgca wonikezelo lwamandla.I-parallel capacitors.Yenza isihluzo seLC sokuhluza ukuhluza ingxolo yosasazo eqhelekileyo.