3.2kW GaN reference design for data center AI mphamvu

Mapangidwe a seva ya CRPS185 3 Titanium Plus ochokera ku Navitas amaposa zofunikira zolimba za 80Plus Titanium kuti akwaniritse zofuna zamphamvu za AI data center power.
Ma processor a AI omwe ali ndi njala yamphamvu ngati Nvidia's DGX GH200 'Grace Hopper' amafuna mpaka 1,600 W iliyonse, akuyendetsa mphamvu-pa-rack kuchokera ku 30-40 kW mpaka 100 kW pa kabati.Pakadali pano, poyang'ana padziko lonse lapansi pakusunga mphamvu ndi kuchepetsa umuna, komanso malamulo aposachedwa a ku Europe, mphamvu zamagetsi pa seva ziyenera kupitilira zomwe 80Plus 'Titanium' imafunikira.

● GaN theka mlatho wophatikizidwa mu phukusi limodzi
● Mbadwo wachitatu wa GaN mphamvu IC

Mawonekedwe a Navitas amachepetsa nthawi yachitukuko ndikupangitsa mphamvu zowonjezera mphamvu, kuchuluka kwa mphamvu ndi mtengo wadongosolo pogwiritsa ntchito ma IC a GaNFast.Mapulatifomu amtunduwu amaphatikiza chikole chathunthu chopangidwa ndi zida zoyesedwa bwino, mapulogalamu ophatikizidwa, schematics, bili-of-matadium, masanjidwe, kuyerekezera ndi zotsatira za mayeso a hardware.

CRPS185 imagwiritsa ntchito mapangidwe aposachedwa kwambiri kuphatikiza CCM totem-pole PFC yokhala ndi full-bridge LLC.Zomwe zili zofunika kwambiri ndi Navitas '650V GaNFast power ICs zatsopano, zokhala ndi GaN yolimba, yothamanga kwambiri kuti igwirizane ndi zovuta komanso zovuta zokhudzana ndi tchipisi ta GaN.
Ma GaNFast power ICs amaperekanso zotayika zotsika kwambiri, zokhala ndi mphamvu yanthawi yochepa mpaka 800 V, ndi maubwino ena othamanga kwambiri monga mtengo wotsika pachipata (Qg), kuthekera kotulutsa (COSS) komanso kutayika kobwereranso (Qrr). ).Pamene kusintha kothamanga kwambiri kumachepetsa kukula, kulemera ndi mtengo wazinthu zopanda mphamvu pamagetsi, Navitas akuyerekeza kuti ma IC a GaNFast amapulumutsa 5% ya mtengo wa LLC-stage system, kuphatikizapo $ 64 pa magetsi pazaka 3.

Mapangidwewa amagwiritsa ntchito mawonekedwe a 'Common Redundant Power Supply' (CRPS) omwe amafotokozedwa ndi Hyperscale Open Compute Project, kuphatikiza Facebook, Intel, Google, Microsoft, ndi Dell.

● China design center for data center GaN
● Kupereka kwa 2400W CPRS AC-DC kumakhala ndi 96%.

Pogwiritsa ntchito CPRS, nsanja ya CRPS185 imapereka mphamvu zonse za 3,200 W mu 1U (40 mm) x 73.5mm x 185 mm (544 cc), kukwaniritsa 5.9 W/cc, kapena pafupifupi 100 W/in3 mphamvu yamagetsi.Uku ndikuchepetsa kukula kwa 40% poyerekeza ndi njira yofananira ndi silikoni ya cholowa ndipo imadutsa mosavuta muyezo wa Titanium, kufika pa 96.5% pa 30% katundu, ndi kupitirira 96% kutambasuka kuchokera 20% mpaka 60% katundu.

Poyerekeza ndi njira zachikhalidwe za 'Titanium', mapangidwe a Navitas CRPS185 3,200 W 'Titanium Plus' omwe akuyenda pamtundu wa 30% amatha kuchepetsa kugwiritsa ntchito magetsi ndi 757 kWh, ndikuchepetsa kutulutsa mpweya woipa ndi 755 kg pazaka zitatu.Kuchepetsa uku ndi kofanana ndi kupulumutsa 303 kg ya malasha.Sizimangothandiza makasitomala a data center kuti apeze ndalama zochepetsera ndalama komanso kuwongolera bwino, komanso zimathandizira ku zolinga za chilengedwe za kusunga mphamvu ndi kuchepetsa utsi.

Kuphatikiza pa ma seva apakati pa data, mawonekedwe ofotokozera atha kugwiritsidwa ntchito ngati magetsi osinthira / rauta, kulumikizana, ndi mapulogalamu ena apakompyuta.

"Kutchuka kwa mapulogalamu a AI monga ChatGPT ndi chiyambi chabe.Pamene mphamvu ya rack center ikuwonjezeka ndi 2x-3x, mpaka 100 kW, kupereka mphamvu zambiri m'malo ang'onoang'ono ndizofunikira, "anatero Charles Zha, VP ndi GM wa Navitas China.

"Tikuyitanitsa opanga magetsi ndi omanga makina kuti agwirizane ndi Navitas ndikuwona momwe misewu yathunthu yogwira ntchito bwino kwambiri, mapangidwe amphamvu kwambiri amatha kukhala okwera mtengo, ndikufulumizitsa kukweza kwawo kwa seva ya AI."