Kua tere te whanaketanga o te tuatoru o ngā whakatupuranga o ngā haurua-ā-ira, e tohuhia ana e te gallium nitride (GaN) me te silicon carbide (SiC), nā ō rātou āhuatanga tino pai. Heoi, me pēhea te ine tika i ngā tawhā me ngā āhuatanga o ēnei taputapu kia taea ai te whakamahi i tō rātou pūmanawa me te arotau i tō rātou whai huatanga me te pono, me whai taputapu ine tino tika me ngā tikanga ngaio.
Kei te whānui haere te whakamahinga o te whakatupuranga hou o ngā rauemi āputa whānui (WBG) e tohuhia ana e te silicon carbide (SiC) me te gallium nitride (GaN). I runga i te hiko, he tata ake ēnei matū ki ngā mea ārai i te silicon me ētahi atu rauemi semiconductor noa. Kua hangaia ēnei matū hei wikitoria i ngā herenga o te silicon nā te mea he rauemi āputa whānui, ā, nā reira ka ngoikore te turuturu o te kawe hiko, ka kitea nuitia ake i te pikinga o te pāmahana, te ngaohiko, te auau rānei. Ko te rohe arorau ki tēnei turuturu ko te kawe kore whakahaere, he rite ki te rahunga mahi semiconductor.
O ēnei rauemi whānui e rua, he pai te GaN mō ngā kaupapa whakatinanatanga mana iti me te mana waenga, tata ki te 1 kV me raro iho i te 100 A. Ko tētahi wāhi tipu nui mō te GaN ko tōna whakamahinga i roto i ngā rama LED, engari kei te tipu haere hoki i roto i ētahi atu whakamahinga mana iti pēnei i ngā waka me ngā whakawhitiwhitinga RF. He rerekē, ko ngā hangarau e karapoti ana i te SiC he pai ake te whanaketanga i te GaN, ā, he pai ake te whakamahi mō ngā tono mana teitei ake pēnei i ngā inverters traction waka hiko, te tuku mana, ngā taputapu HVAC nui, me ngā pūnaha ahumahi.
Ka taea e ngā taputapu SiC te mahi i ngā ngaohiko teitei ake, ngā auau whakawhiti teitei ake, me ngā pāmahana teitei ake i ngā Si MOSFET. I raro i ēnei āhuatanga, he nui ake te mahi, te whai huatanga, te kiato mana me te pono o te SiC. Kei te āwhina ēnei painga i ngā kaihoahoa ki te whakaiti i te rahi, te taumaha me te utu o ngā kaitahuri hiko kia kaha ake ai te whakataetae, inā koa i roto i ngā wāhanga mākete whai hua pēnei i te rererangi, te hōia me ngā waka hiko.
He mea nui te mahi a ngā SiC MOSFET i roto i te whanaketanga o ngā taputapu whakawhiti hiko o te whakatupuranga e whai ake nei nā te mea ka taea e rātou te whakatutuki i te pai ake o te whakamahinga pūngao i roto i ngā hoahoa e hangai ana ki ngā wāhanga iti ake. Me arotake anō hoki e ngā kaihangarau ētahi o ngā tikanga hoahoa me te whakamātautau e whakamahia ana i ngā wā o mua hei hanga hikohiko mana.
Kei te piki haere te hiahia mō ngā whakamātautau pakari
Hei whakatutuki i te pūmanawa o ngā taputapu SiC me GaN, me ine tika i te wā e mahi ana te whakawhiti hei whakapai ake i te pai me te pono. Me whai whakaaro ngā tikanga whakamātautau mō ngā taputapu haurua-ā-ira SiC me GaN ki ngā auau mahi me ngā ngaohiko teitei ake o ēnei taputapu.
Ko te whanaketanga o ngā taputapu whakamātautau me te ine, pērā i ngā kaihanga mahi ā-wāhanga (AFG), ngā oscilloscope, ngā taputapu waeine ine pūtake (SMU), me ngā tātari tawhā, kei te āwhina i ngā kaihanga hoahoa hiko ki te whakatutuki i ngā hua kaha ake i te tere ake. Ko tēnei whakapai ake i ngā taputapu kei te āwhina i a rātou ki te aro atu ki ngā wero o ia rā. "Ko te whakaiti i ngā ngaronga whakawhiti he wero nui tonu mō ngā kaihanga taputapu hiko," te kī a Jonathan Tucker, te tumuaki o te Hokohoko Pūnaha Hiko i Teck/Gishili. Me ine tika ēnei hoahoa kia rite ai. Ko tētahi o ngā tikanga ine matua e kiia ana ko te whakamātautau pāoro rua (DPT), koinei te tikanga paerewa mō te ine i ngā tawhā whakawhiti o ngā MOSFET, ngā taputapu hiko IGBT rānei.
Ko te whakaritenga hei whakahaere i te whakamātautau pāoro rua o te haurua-haurua SiC ko: te kaihanga mahi hei taraiwa i te whatunga MOSFET; te pūmanawa Oscilloscope me te tātari mō te ine i te VDS me te ID. Haunga te whakamātautau pāoro rua, arā, hei tāpiri atu ki te whakamātautau taumata ara iahiko, kei reira anō hoki te whakamātautau taumata rauemi, te whakamātautau taumata wāhanga me te whakamātautau taumata pūnaha. Nā ngā auahatanga o ngā taputapu whakamātautau kua taea ai e ngā kaihoahoa hoahoa i ngā wāhanga katoa o te huringa ora te mahi ki ngā taputapu hurihanga hiko ka taea te whakatutuki i ngā whakaritenga hoahoa tino pakari me te utu-pai.
Mā te rite ki te whakamana i ngā taputapu hei whakautu i ngā huringa ture me ngā hiahia hangarau hou mō ngā taputapu kaiwhakamahi mutunga, mai i te whakaputa hiko ki ngā waka hiko, ka taea e ngā kamupene e mahi ana i ngā hikohiko mana te arotahi ki te auahatanga tāpiri uara me te whakatakoto i te turanga mō te tipu ā-muri.
Wā tuku: Maehe-27-2023