nhau

Transformer sumo
Inonyanya kushandiswa kune: high-performance digital switches;SDH / ATM kutumira michina;ISDN.ADSL.VDSL.POE Integrated service data equipment;FILT optical fiber loop midziyo;Ethernet switch, nezvimwewo!Mapombi edata midziyo inowanikwa pavatengi-giredhi PCI network makadhi.Mapombi edata anozivikanwawo senetwork transformerskana network isolation transformers.Iyo ine mabasa maviri makuru panetiweki kadhi, imwe ndeyekutumira data, inoshandisa yekusiyanisa mode coupling coil kusefa iyo PHY yekusiyanisa chiratidzo kuti iwedzere chiratidzo, uye inoshandura kubatana kune akasiyana mazinga kuburikidza nemagnetic field kubatanidza imwe mugumo we. tambo yetiweki;imwe ndeyekudzivirira iyo network tambo yekubatanidza Matanho akasiyana pakati pemambure akasiyana siyana kudzivirira akasiyana voltages kubva kukuvadza zvishandiso zvinoenderana nemambure tambo kutapurirana.Uye zvakare, data mercury inogona zvakare kuita rimwe basa mukudzivirira mheni yemidziyo.
Transformer Efficacy:
Muchigadzirwa cheEthernet, maererano neEthernet midziyo, PHY yakabatana neRJ45 point, uye network transformer ichawedzerwa pakati.Mamwe ma transformer ari pakati anobaya kusvika pasi.Uye kana magetsi akabatanidzwa, kukosha kwesimba kunogona kusiyana, 3.3V, 2.5V, uye 1.8V.
Transformer basa:
1. Kuparadzaniswa kwemagetsi
Chiyero chechiratidzo chinogadzirwa nechero CMOS chip chinogara chakakura kupfuura 0V (zvichienderana nekugadzira uye dhizaini zvinodiwa zvechip), uye iyo PHY ichave nekurasikirwa kukuru kwechikamu cheDC kana chiratidzo chekubuda chatumirwa kunzvimbo ye100 metres. kana kupfuura.Kana iyo yekunze network tambo yakabatana zvakananga kune chip, electromagnetic induction (mheni) uye static magetsi anogona kukuvadza chip nyore.
Zvadaro pane nzira dzakasiyana dzekugadzirisa midziyo.Yakasiyana gidhi yemagetsi nharaunda inotungamira kune isingaenderane 0V mazinga pamativi ese, uye chiratidzo chinofambiswa kubva kuA kuenda kuAB.Nekuti iyo 0V nhanho yechishandiso A uye iyo 0V nhanho yepoinzi B zvakasiyana, inogona kukonzera yakakura ikozvino kuyerera kubva kune yakasimba inogona.Equipment inoyerera mumidziyo ine simba rakaderera.
Iyo network inoshandura inoshandisa iyo yekusiyanisa modhi yekubatanidza coil kusefa iyo PHY yekusiyanisa siginecha kuti iwedzere chiratidzo, uye kushandura iyo coupling kune imwe magumo ekubatanidza network tambo kuburikidza nemagineti.Izvi hazviiti chete kuti tambo yetiweki uye PHY isava nekubatana kwemuviri pakati pavo, chiratidzo chinotsiviwa uye chinoparidzirwa, chikamu cheDC muchiratidzo chinogurwa, asiwo data inogona kuendeswa mune zvakasiyana-siyana 0V level.
Iyo network transformer yakatanga kugadzirwa kuti ikwanise kumira 2KV ~ 3KV voltage.Inoitawo sekudzivirira mheni.Dzimwe shamwari dzetiweki michina inopiswa zviri nyore mukutinhira, mazhinji acho ari mabhanan’ana.Nekuda kwekusaziva kwesainzi kwePCB, uye yakakura midziyo interface inopiswa, mashoma machipisi anopiswa, uye transformer inoita basa rekudzivirira.
Iyo inodzivirira inoshandura inogona kusangana nezvinodiwa zvekudzivirira zveIEEE802.3, asi haigone kudzvinyirira EMI.
2. Common mode kurambwa
Waya imwe neimwe mune yakamonyoroka peya inofanira kuputirwa kune imwe neimwe mune kaviri helix.Iyo magnetic field yakagadzirwa nezvino inoyerera kuburikidza newaya imwe neimwe inosungwa ne spiral.Kwairi kuyerera nemuwaya yega yega yepeya yakamonyoroka inotara mwero weruzha rwunoburitswa newaya yega yega.Iwo mazinga ekutapurirana anokonzerwa nemusiyano modhi uye yakajairika modhi mafayiti ega ega conductor akasiyana.Iko kufambisa kweruzha kunokonzerwa nekusiyanisa modhi ikozvino idiki, uye ruzha rwunonyanya kutsanangurwa neyakajairwa modhi ikozvino.
1. Differential mode chiratidzo mune dzakamonyoroka peya
Kune masignal modhi yekusiyanisa, ikozvino muwaya imwe neimwe inofamba nenzira dzakapesana pane mbiri yewaya.Kudai waya mbiri idzi dzaive dzakabatanidzwa zvakafanana, mafambiro anopikisa aya aizogadzira magineti akasiyana ane saizi imwe chete, zvichiita kuti magineti apesana.
2. Common mode chiratidzo mune dzakamonyoroka pair
Common mode ikozvino inoyerera nenzira imwechete pawaya dzose uye inodzokera pasi kuburikidza neparasitic capacitor Cp.Muchiitiko ichi, mafungu anobudisa magnetic fields ehukuru hwakafanana uye polarity, izvo zvinobva kune izvo zvisingagoni kurwisana.Common mode currents inogadzira magineti panzvimbo yakamonyoroka, inoshanda zvakafanana neantenna.
3. Common mode, differential mode ruzha uye EMC yayo
Kune marudzi maviri eruzha patambo: ruzha rwakaremerwa uye ruzha rwekutapurirana kubva kusimba uye tambo dzechiratidzo.Aya mapoka maviri akakamurwa kuva akajairwa modhi ruzha uye musiyano modhi ruzha.Differential-mode transmission ruzha irwo ruzha runogadzirwa neruzha rwemagetsi mukati memudziyo wemagetsi unotevera nzira imwechete sechiratidzo chemazuva ano kana kugovera ikozvino, sezvinoratidzwa mumufananidzo 4. Nzira yekuderedza ruzha urwu ndeyekuisa differential mode inodzipa makoiri mukati akatevedzana patambo yemagetsi uye tambo yemagetsi.Iyo yakaderera pass sefa ine capacitor kana capacitor uye inductor yakafanana kudzikisa yakakwirira frequency ruzha.
Iro simba remunda rinogadzirwa neruzha urwu rakapesana nekureba kubva kune tambo kuenda kunzvimbo yekutarisa, zvine hukama neskweya yefrequency, uye ine chekuita neazvino uye nharaunda yeiko loop.Naizvozvo, nzira yekudzikisa iyi mwaranzi ndeyekuwedzera LC yakaderera-pass sefa pane yekuisa chiratidzo kudzivirira ruzha rwazvino kubva mukuyerera mutambo;tambo dzakadzivirirwa kana dzakafuratira dzinofanirwa kushandiswa kutakura kudzoka ikozvino uye chiratidzo chemazuva ano kuderedza loop nzvimbo.
Common modhi inoitiswa ruzha inogadzirwa neruzha rwazvino runoyerera pakati pevhu uye tambo kuburikidza neparasitic capacitance pakati pevhu nemidziyo, inofambiswa neruzha voltage mumidziyo.
Iyo nzira yekudzikisa yakajairwa modhi yekufambisa ruzha ndeyekubatanidza yakajairwa modhi inodzipa coil munhevedzano mumutsara wemagetsi kana tambo yemagetsi.Parallel capacitors.Gadzira LC sefa yekusefa kusefa kunze kwakajairika modhi yekufambisa ruzha.