SiC vs GaN: Nga Rerekētanga Pūmau, Te Whakatakotanga, Utu, me ngā Whakamahi

Ko Silicon Carbide (SiC) me Gallium Nitride (GaN) ngā hangarau semiconductor bandgap whānui e whakamahia nuitia ana mō ngā pūmanawa hiko hou. Ahakoa e noho ana te mea, e pai ana te whakamahi pūngao i te whakataurite ki ngā taputapu silicon tuku iho, nā rātou i hoahoa mō ngā reeti pūngao rerekē, auau whakawhiti, taumata pūngao, me ngā whakaritenga pūnaha. Ko ēnei rerekētanga ka pā ki te mahi o ngā tono pēnā i ngā inverter EV, pūnaha pūngao whakahou, punawai pūngao ahumahi, USB-C chargere, me ngā taputapu pokapū raraunga. Ko tēnei tuhinga e tātaritia ana te SiC me te GaN i ngā āhuatanga whakahaere, te mahi whakawhiti, te utu, me ngā tono tikanga hei whakanui i te wāhi e pai ana ngā hangarau katoa.

Kākahu

Whakaahua 1: Silicon Carbide (SiC) me Gallium Nitride (GaN)

He aha te SiC me te GaN?

Ko Silicon Carbide (SiC) me Gallium Nitride (GaN) ngā rauemi semiconductor matatau e whakamahia ana ki te hanga i ngā taputapu pūmanawa hou pēnei i ngā transistor, MOSFETs, me ngā diodes. E toru ngā rōpū i ngā semiconductor bandgap whānui, e tohu ana hei kōrero mō te pānga hiko rerekē mai i te silicon tuku iho. Nā ngā pānga nei, ka whakamahia nuitia ana te SiC me te GaN i ngā pūmanawa hiko e hiahia ana ki te pūngao teitei me te mahi.

Ahakoa e honohia ana te kāinga ki a rātou, he rauemi rerekē te SiC me te GaN. Ko te SiC e hangaia ana mai i te silicon me te wīwī, i te wā e hangaia ana te GaN mai i te gallium me te hau. Mā ngā āhuatanga motuhake o ngā rauemi, ka taea e rātou te whakawhiti i ngā here o te silicon tuku iho, arā ko te take i kiia ai rātou hei hangarau semiconductor kāinga hou.

Me pēhea e mahi ai ngā taputapu SiC me GaN i ngā pūmanawa hiko

Whakaahua 2: Te Mahi o ngā taputapu SiC me GaN i ngā pūmanawa hiko

Ka mahi ngā taputapu SiC me GaN hei whakawhiti hiko e whakahaere ana i te rere o te pūngao i roto i te hiko. I ngā pūmanawa hiko pēnei i ngā pūngao, DC-DC converters, me ngā inverter, ka tahuri rātou kāore e tautuhia mō te whakahaere i te pūngao, e whakahaere ana i te auau, me te whakawhiti pūngao i runga i te ngākau.

I te teitei o tetahi SiC MOSFET, e haere ana te pūngao ki roto i te taputapu ka tuku pūngao ki te yük. I te wa e tūtaki ana, ka tapahi te pūngao, e taea ai te hiko te whakahaere tika i te whakawhiti pūngao. Mā te tīmatanga i ngā tere teitei, ka whakaiti te semiconductor SiC me ngā semiconductor GaN i ngā tahinga pūngao me te whakanui i te whakamahi pūngao ki te whakataurite ki ngā taputapu silicon tuku iho. Ko tēnei tere me te pai o te whakawhiti he take matua mō te whakamahinga o te SiC me te GaN i ngā pūmanawa hiko hou.

SiC vs GaN: Nga Rerekētanga Pūmau

Tātari Bā	SiC	GaN
Te Reeti Pūngao	Pai mo te 650 V ki te 3300 V+ pūnaha	Ka whakamahia whānuitia i roto i te 100 V ki te 650 V pūnaha
Auautanga Pātea	Teitei	Teitei rawa
Te Kaha Pākīpū	Kaha i roto i ngā pūnaha hiko nui	Pai, engari he nui ake te pānga ki te whakatakotoranga
Korenga EMI	He ngawari ki te whakahaere i te nuinga o nga hoahoa GaN e tino tere ana	He nui ake te pānga nāna i te rahi o ngā taha pātea tere
Te Ngaru Pākīpū	Pai mo te kW ki ngā pūnaha pūreretanga nui	Pai mo ngā pūnaha iti ki te tūranga-whakairohia
Te Utu Tūāpapa	Kua maturuturu mō ngā pūnaha mana teitei	E hiahiatia ana te whakatakotoranga PCB me te pātai whakakauhia e te tino noho pai

Te Tūāhua Kōwhiringa Ōrau: Ko wai te Hangarau Tere Atu?

Te Tūāhua Tautuhi	SiC	GaN
Auautanga Pātea Taketake	20 kHz–200 kHz	100 kHz–2 MHz, pātea atu
Te Tūāhua Pātea Piki/Heheke Taketake	Taitamariki 20–50 ns	E kii ana i raro i te 10 ns
Te Kati Whakauru Pōtae (Qrr)	He tino iti (SiC MOSFETs)	Pātata ki te kore (GaN HEMTs)
Te dv/dt Taketake	20–50 V/ns	50–150 V/ns
Te Pānga Taumata Kaitiaki	E kii ana +15 ki te +20 V	E kii ana +5 ki te +6 V
Te Whakahaere PCB Tūāpapa	He pai te whakatakotoranga e tūtohutia ana	He tino iti te whakahere whakarere e hiahiatia ana
Te Tūāhua Rīko EMI	Te Rahi Mahi	Teitei ake nāna i ngā taha pātea tere
Ngā Whakamahi Taketake	EVs, pūrere ahumahi, pūrere solar	USB-C kaiwhakahaere, mana whakawhiti, pūrere DC-DC iti

Ko te tere o te pātea kāore e whakatere ki te hanga hoahoa pai. Ahakoa ka taea e ngā taputapu GaN te whakahaere i ngā auautanga pātea teitei ake, ka piki te pātea me te pāmahana o te pātea, ko te whakaheke pai i ngā whakatakotoranga PCB, te hoahoa pātai hou, te taura, me te kawe oro mo te EMI he mea nui. Ko ngā taputapu SiC ka whakanui i te pātata i te mana teitei me ngā pūnaha hiko nui, ā, he wāhi ake ka whiriwhiria te GaN i te mea e hiahiatia ana te whakaiti i te rahi o te pūrere, te auautanga pātea me te taumaha he tino whāinga hoahoa.

Te Tūāhua Utu SiC vs GaN

Te Tūāhua Utu	SiC	GaN
Te Rahi Pōtae Taketake	650 V–3300 V+	100 V–650 V
Te Utu Taketake o te Pūhare Anō*	US$5–50+	US$2–20+
Te Rahi Wafer	150–200 mm	200 mm
Te Utu Hanga	Teitei ake nāna i te weitiwai SiC me te tukanga waea	Iti ake nāna i te hanga wafer nui me te whare hangahanga mau
Te Paihana Utu	Pūnaha mana teitei (>650 V)	Pūnaha mana iti ki te tūranga (100–650 V)
Te Tūāhua Mākete Taketake	EVs, pūtake whakahou, pūrere ahumahi	Ngā kaiwhakahaere tere, kaiwhakatātari, te uara, pūrere hiko tāpiri

Te Tūāhua Utu Tūāpapa: I te nuinga o ngā take, he nui ake te utu o ngā taputapu SiC i ngā taputapu GaN, i hangaia tēnei i runga i te uaua me te whakangao o ngā pātai SiC. Heoi, ka rerekē te whakaritenga utu i runga i te pākiki mana, te taumata pū, te kaihanga me te rahi hanga. Mo ngā tono iti pū, ko te GaN te whiriwhiringa tino pātea, i te mea i te wa e piki haere ana te pākiki pū me te taumahuatanga, ko te SiC ka noho hei whākana utu pai ake.

SiC vs GaN vs Silicon

Te Tūāhua Tautuhi	Silicon	SiC	GaN
Te Rahi Pōtae Taketake	Runga ki te 650 V	650 V ki te 3300 V+	100 V ki te 650 V
Te Auautanga Pātea Taketake	Runga ki te 100 kHz	20 kHz–200 kHz	100 kHz–2 MHz+
Te Pāmahana Tūāhua Kākahu	125–150°C	175–200°C	150–175°C
Te Whakatūwheratanga Pūnaha Tūāhua Taketake	Te Mātanga	1–3% teitei ake i te Silicon i ngā pūnaha mana teitei	2–5% teitei ake i te Silicon i ngā tono pātea tere
Te Pākīpū Pātea Taketake	Te Ita	Teitei	Teitei rawa
Te Aukati Pātea	Teitei rawa	I raro iho i te Silicon	Te Ita rawa
Te Whakatakotoranga EMI	Te Ita rawa	Te Rahi Mahi	Teitei rawa nāna i te mau pātea
Te Utu Taketake	Te Ita	Te Teitei	Te Hiahiatia Me Te Teitei
Ngā Whakamahi Taketake	Pūnaha kāinga, pūnaha mana utu iti	EVs, pūrere ahumahi, pūtake whakahou	Ngā kaiwhakahaere tere, te uara, tūmau, pūrere tāpiri iti

Ngā Whakamahi Taketake o SiC me GaN

Ngā Whakamahi e whakamahia ana i te nuinga o te wā e whakamahi ana i te SiC

• Ika Ngangahu Pūhiko (EV) Inverter – Huri i te pūngao DC o te pūhiko hei pūngao AC mō ngā motuka hiko i te wa e pupuri ana i te tika o te mahi.

• EV Whakarato pūngao – Tautoko pūnaha utu pūngao teitei me ngā ngaronga pūngao iti.

• Ika Ngangahu Pūhiko – Whakatakoto i te tika o te huri i te pūngao DC e puta mai ana i te ra ki te pūngao AC e taea te whakamahi.

• Pūnaha Taonga Pūngao (ESS) – Whakahaere i te huri pūngao i waenga i ngā pūhiko me ngā utu hiko.

• Maimai Motokā Ahumahi – Tuku pūnaha whakahaere motuka e tika ana i roto i ngā whakangao me ngā taputapu awhina.

• Tūāhua Pūnaha Tūāpapa – Tautoko i ngā tono huri pūngao teitei-whakawhiti me te tohatoha.

Ngā tono ka whakamahia hei GaN

• USB-C Kaari Terenga Tere – Tautoko i ngā kaari teitei e māmā ana, e pata ana i te pūngao utu teitei.

• Pūhiko Pūerto Rorohiko – Tāmau te rahi o te pūhiko ka pai ake te huri pūngao.

• Pūhiko Electrónica Kaihoko – Tautoko i ngā hoahoa pūngao pātea mō ngā waea pūkoro, rorohiko pātea, me ētahi atu taputapu kawe.

• Pūnaha Pūhara Tūāhua – Whakarahi i te pāmahana pūngao me te tika i roto i ngā hanganga whakawhitiwhiti.

• Pūhiko Pākūhere Pokanga – Tautoko ki te whakaiti i ngā ngaronga pūngao me te whakapai ake i te tika pūngao i roto i ngā pūnaha rorohiko.

• Ngā Kaitohutohu AC-DC me DC-DC Pōhēhū – Tūtohi i ngā hoahoa kaitohutohu iti ake mā ngā hōtaka whakawhiti teitei.

Me pēhea te Kōwhiri i waenga i te SiC me te GaN

Ko te kōwhiringa i waenga i te SiC me te GaN e pā ana ki te pāmahana, te taumata pūngao, ngā whakaritenga pāmahana, te wāhi e wātea ana, me ngā whāinga hoahoa whānui o tāu tono. Ahakoa e tuku ana te rautaki e rua i ngā painga i runga i ngā taputapu silicon tuku iho, ko te kōwhiringa pai e pā ana ki ngā whakaritenga mahi motuhake o te pūnaha.

Whakaritenga Hoahoa	Kōwhiringa Pai	Take
Pūnaha pāmahana i runga i te 650V	SiC	E pai ana mō te mahi pāmahana teitei.
Pūnaha huri pūngao teitei	SiC	Ka whakahaere i ngā taumata pūngao teitei i te tika.
Ngā taiao pāmahana teitei	SiC	E pupuri ana i te mahi i raro i ngā ahuatanga pāmahana uaua.
Te tika teitei i te pāmahana teitei	SiC	I hangaia mō te huri pūngao pāmahana teitei.
Hoahoa pūngao pōti	GaN	Ka taea te whakamahi i ngā wāhanga pātea iti.
Ngā hua e iti ana te wāhi	GaN	Tautoko i ngā hoahoa pūngao teitei.
Ngā pūhiko māmā	GaN	Ka āwhina ki te whakaiti i te rahi me te taumaha o te pūnaha katoa.
Ngā pūhiko electrónica kaihoko	GaN	E pae ana mō ngā hoahoa pātea, tika.
Ngā pūnaha ahumahi me ngā pūnaha pūngao whakahou	SiC	E whakamahia ana i ngā tono pūngao uaua.
Ngā rongoā utu rahi iti	GaN	Ka whakatika mō ngā pūnaha huri pūngao pōti.

Whāinga

Ko te SiC me te GaN e whakautu ana i ngā whakaritenga huri pūngao rerekē, kāore e tūnga hei whakakapi tika mo te taha ki te taha. Ko te SiC e whakamahia ana i 650 V ki te 3300 V+ pūnaha e hiahia ana i te whakahaere pūngao teitei me te mahi pāmahana, i te wā e papai ana te GaN mo ngā tono 100 V ki te 650 V i reira ko ngā pāmahana whakawhiti teitei me te rahi iti he mea nui. Ko ngā āhuatanga pērā i te pāmahana mahi, te pāmahana whakawhiti, ngā pāmahana tūturu, te uaua hoahoa PCB, me te utu pūnaha, me te tirotiro i mua i te kōwhiri i te taputapu. Ko te whakakotahi i te hangarau semiconductor ki ngā whakaritenga tono ka puta mai te whakapakari i te tika, te whakawhirinaki, me te katoa o te mahi pūnaha.