Ma ke ʻano he mea pale, hiki i nā paipu TVS ke pale pono i ka haʻihaʻi electrostatic a pale i nā kaapuni. I ke koho ʻana i nā paipu TVS, pono e uku ʻia ka nānā ʻana i kā lākou mau palena kūpono, inā ʻaʻole hiki ke kū mai nā pilikia i manaʻo ʻole ʻia. ʻO VRWM, VBR, Vc, Ipp, Cd nā ʻāpana koʻikoʻi no ke koho ʻana i nā hāmeʻa ESD/TVS
Wehewehe:
VBR: ʻO ke kiko kahi e hāʻule ai ka uila @ IT - TVS e lilo koke i impedance haʻahaʻa
VRWM: E mālama i ka uila - aia ka TVS i kahi kūlana hoʻokele ʻole i kēia pae
VC: Paʻi uila @ Ipp - ʻO ka puʻuwai hoʻopili ma kahi o 1.3 * VBR
VF: Ka uila hoʻokuʻu mua @ IF - Haʻule ka uila i mua
ID: Huli Leakale i kēia manawa @ VRWM
IT: E ho'āʻo i kēia manawa no ka uila hāʻule
IPP: ʻAha ka piko o kēia manawa
IF: Ke au holo mua
Ke kahe ka pulse peak IPP o kēia manawa me ka lōʻihi o 20mS ma o TVS, ua hoʻopaʻa ʻia ka puliki puʻupuʻu e ka mea pale ESD, a ʻo ka VC ka nui o ka puʻupuʻu kiʻekiʻe e kū ana ma nā ʻaoʻao ʻelua. Hōʻike ʻo VC a me IPP i ka hiki ke hoʻopau ʻia o ka TVS. ('Ōlelo Aʻo: ʻO VC ka volta i hāʻawi ʻia e ka diode i ka mokuʻāina ʻoki ʻia, ʻo ia hoʻi, ka volta ma o TVS i ka wā o ka ESD impulse state. ʻAʻole hiki ke ʻoi aku ka nui ma mua o ka volta palena i ʻae ʻia o ke kaapuni i pale ʻia, inā ʻaʻole e kū ka hāmeʻa i ka pōʻino.).
ʻO ka ʻoi loa o ka leaka hoʻohuli i kēia manawa @ VRWM
Hōʻike ʻo VRWM ma lalo o ka ID i ʻōlelo ʻia, ʻo ka waiwai uila ma nā ʻaoʻao ʻelua o ka hāmeʻa TVS e lilo i ka volta hana hope loa. ʻO ka maʻamau VRWM=(0.8~0.9) VBR. Ma kēia voltage, liʻiliʻi loa ka hoʻohana ʻana i ka mana o ka hāmeʻa. (E hoʻomaopopo: I ke koho ʻana i ke ʻano, ʻaʻole pono ʻo Vrwm i haʻahaʻa ma mua o ka volta hana maʻamau o ka mea pale a kaʻapuni paha. ʻO ka maʻamau, VopONUʻO ka mea maʻamau he 12V, a ua koho ʻia ka pahu TVS e hoʻokele i ka VC ma waena o 14V a me 16V.
ʻO ka volta kahi e hele ai ka transistor TVS i ka hōʻike hōʻike i kēia manawa ʻO ia, ʻo ia ka voltage i kaha ʻia e hōʻike ana i ka lawe ʻana o ka transistor TVS, ʻo ia hoʻi, mai kēia manawa, komo ka hāmeʻa i ka haki ʻana o ka avalanche. ʻO VBR ka palena haʻahaʻa haʻahaʻa haʻahaʻa no TVS, a ma 25 ℃, ʻaʻole e ʻike ʻo TVS i nā avalanches ma lalo o kēia voltage. Ke kahe ʻo TVS ma kahi o kēia manawa 1mA (IR), ʻo ka voltage i hoʻopili ʻia i nā pou ʻelua o TVS ʻo ia ka palena haʻahaʻa haʻahaʻa VBR. I mea e hoʻokō ai i ke kūlana honua o IEC61000-4-2, pono e hiki i nā diodes TVS ke mālama i ka liʻiliʻi o 8kV (contact) a me 15kV (air) ESD hopena. Ua hoʻohana kekahi mau mea hana semiconductor i nā kūlana kūʻē i ka hopena kiʻekiʻe i kā lākou huahana. No kekahi mau polokalamu kelepona paʻa me nā koi kūikawā, hiki i nā mea hoʻolālā ke koho i nā polokalamu e like me kā lākou makemake.
ʻO ka mea i luna nei kahi ʻike pōkole o nā ʻāpana koʻikoʻi o ke koho TVS, hiki ke hoʻohana ʻia ma ke ʻano he kuhikuhi. Loaʻa i kā mākou hui kahi hui ʻenehana ikaika a hiki ke hāʻawi i nā lawelawe ʻenehana loea i nā mea kūʻai aku. I kēia manawa, loaʻa i kā mākou hui nā huahana like ʻole: naʻauaoonu.oltmea lako, Ethernethoʻololia me nā lako pūnaewele ʻē aʻe. Inā pono ʻoe, hiki iā ʻoe ke hoʻomaopopo hohonu iā lākou.