POE Mphamvu pachitetezo cha Ethernet

Kukula kwaukadaulo wa Power over Ethernet (POE) ndikolimba kwambiri. Kupititsa patsogolo lusoli kungapangitse kuyika ndi kuyika zida zamagetsi mosavuta, motero kuthetsa kufunika kwa mizere yodziyimira payokha. Masiku ano, teknoloji yamagetsi (POE) imagwiritsidwa ntchito kwambiri m'mafakitale monga chitetezo, kulankhulana, ndi ma grids anzeru kuti akwaniritse deta, kutumiza mavidiyo, kuyendetsa kayendedwe, ndi magetsi kudzera m'mabasi mkati mwa dongosolo. Komabe, chifukwa cha malo ogwirira ntchito a Industrial Ethernet, kuthamanga ndi chitetezo chokhazikika cha doko la POE ndikofunikira. Nawa chidule chachidule cha chitetezo cha dongosolo la POE:
Mulingo:
(1) IEC61000-4-2: LEVEL4: Lumikizanani ndi 8kV; Mpweya: 15kV
(2) IEC61000-4-5: 10/700us LEVELX: 6KV
Mfundo: Njira ziwiri zomwe zili pamwambazi zimagwiritsa ntchito chitetezo cha magawo awiri, kutsogolo kwake kukhala electrostatic silicon suppressor SET ndi negative clamp voltage suppressor NVCS, kuti atenge ndi kumasula mphamvu zazikulu zogwira ntchito. Chida chakumbuyo chakumbuyo ndi chitetezo cha electrostatic ESD, chokhala ndi voteji yolondola komanso kuthamanga kwachangu, Bweretsani mphamvu zotsalira za gawo lapitalo, kuchepetsa mphamvu yamagetsi mkati mwazomwe dera lakumbuyo limatha kupirira, ndikuteteza kumbuyo- mapeto chip. Pachitetezo chamagetsi cha 48V, zida zodzitchinjiriza zochulukirapo zimagwiritsidwa ntchito kukweza mulingo woyesera, womwe umakhala ndi voliyumu yayikulu ndipo umakhala ndi mphamvu yowongolera pamagetsi otsalira, zomwe zimapangitsa kuti chiwonjezeko chakuwonongeka kwa chip kumbuyo. Pazifukwa izi, SPSEMI Instant Bingu Electronics yapanga cholumikizira champhamvu chamagetsi cha NVCS makamaka cha POE (48V magetsi). Nkhaniyi ili ndi kuthamanga kwakukulu ndi voliyumu yaying'ono, yomwe imayikidwa mu SMC. Pankhani ya kuwongolera kwamagetsi otsalira, ndi pafupifupi 20V kutsika kuposa zida zachikhalidwe za TVS, zomwe zimatha kuteteza chip chakumbuyo chakumbuyo.
Mulingo:
(1) IEC61000-4-2: LEVEL4: Lumikizanani ndi 8kV; Mpweya: 15kV
(2) IEC61000-4-5: 10/700us LEVELX: 6KV
Mfundo Yofunika Kuiganizira: Njira ziwiri zomwe zili pamwambazi zimakhala ndi chitetezo chamagulu awiri. Gawo lakutsogolo ndi NVCS yotseketsa magetsi, yomwe imatenga ndikutulutsa mphamvu yayikulu. Chida chachitetezo chakumbuyo ndi choteteza cha electrostatic ESD, chomwe chimakhala ndi magetsi okhazikika komanso kuthamanga kwachangu. Imayamwa mphamvu yotsalira ya siteji yakutsogolo, imachepetsa mphamvu yamagetsi mkati mwamtundu womwe dera lakumbuyo limatha kupirira, ndikuteteza chip chakumbuyo chakumbuyo.
Malinga ndi muyezo wapadziko lonse lapansi IEC61000-4-5, mphamvu yamagetsi yamagetsi nthawi zambiri imabayidwa mwanjira wamba. Pamapangidwe a chiwembucho, chidwi chimaperekedwa ku chitetezo chamtundu wamba. Woteteza ma electrostatic TUSD03FB amawonjezedwa pakati pa mizere yodzipatula kuti atetezedwe mosiyanasiyana, kuchotsa mphamvu yotsalira yomwe imalumikizidwa kumbuyo kumbuyo panthawi yomwe mphezi ikuwomba, ndikuteteza kusiyana kwapakati pakati pa mizereyo kuti isasinthe. Dongosolo lachitetezo pamwambapa latsimikiziridwa ndi SPSEMI Transient Thunder Electronics Laboratory.
Zomwe zili pamwambazi ndizofotokozera mwachidule za POE Power over Ethernet Surge Protection, yomwe ingakhale ngati chidziwitso kwa aliyense. Kampani yathu ili ndi gulu lolimba laukadaulo ndipo imatha kupereka chithandizo chaukadaulo kwa makasitomala. Pakadali pano, kampani yathu ili ndi mitundu yosiyanasiyana: yanzeruinu, kulumikizana Optical module, optical fiber module, sfp Optical module,oltzida, Efanetikusinthandi zida zina zamaneti. Ngati mukufunikira, mutha kukhala ndi chidziwitso chozama.