Imikhiqizo Emisha |Agasti 4, 2023
Ibhalwe nguNick Flaherty
I-AI AMABHETRI / AMANDLA SUPPLIES
I-Navitas Semiconductor isungule idizayini eyinkomba engu-3.2kW yamandla asuselwa ku-GaN kumakhadi e-AI esheshayo ezikhungweni zedatha.
Idizayini yereferensi yeseva ye-CRPS185 3 Titanium Plus evela e-Navitas idlula izimfuneko eziqinile ze-80Plus Titanium ukuze ihlangabezane nezidingo zamandla ezikhulayo zamandla esikhungo sedatha ye-AI.
Amaphrosesa e-AI alambele amandla afana ne-Nvidia's DGX GH200 'Grace Hopper' afuna kufika ku-1,600 W lilinye, ashayela izicaciso zamandla ukusuka ku-30-40 kW kufika ku-100 kW ikhabethe ngalinye.Ngaleso sikhathi, ngokugxila emhlabeni wonke ekongiweni kwamandla kanye nokunciphisa ukukhishwa kwezinto ezikhishwayo, kanye nemithetho yakamuva yase-Europe, ukunikezwa kwamandla kweseva kufanele kudlule ukucaciswa kokusebenza kahle kwe-80Plus 'Titanium'.
● Ibhuloho elinguhhafu le-GaN lihlanganiswe kuphakheji eyodwa
● Isizukulwane sesithathu se-GaN amandla IC
Imiklamo yesithenjwa ye-Navitas inciphisa isikhathi sokuthuthukiswa futhi inike amandla ukusebenza kahle kwamandla okuphezulu, ukuminyana kwamandla kanye nezindleko zesistimu kusetshenziswa ama-IC wamandla we-GaNFast.Lezi zingxenyekazi zesistimu zihlanganisa isibambiso sedizayini esiphelele esinezingxenyekazi zekhompuyutha ezihlolwe ngokugcwele, isofthiwe eshumekiwe, izikimu, ibhili yezinto, isakhiwo, ukulingisa kanye nemiphumela yokuhlolwa kwehadiwe.
I-CRPS185 isebenzisa imiklamo yakamuva yesekethe okuhlanganisa ne-CCM totem-pole PFC ene-full-bridge LLC.Izingxenye ezibalulekile ama-IC ka-Navitas 'entsha ye-650V GaNFast yamandla, anedrayivu eqinile, edidiyelwe ye-GaN edidiyelwe ukubhekana nokuzwela kanye nezinkinga ezibuthakathaka ezihlobene nama-chips e-GaN acacile.
I-GaNFast power ICs iphinde inikeze ukulahleka kokushintsha okuphansi kakhulu, okunamandla we-transient-voltage afika ku-800 V, kanye nezinye izinzuzo zesivinini esikhulu njenge-low gate charge (Qg), i-output capacitance (COSS) kanye nokulahlekelwa kokuhlehla kokubuyisela emuva (Qrr ).Njengoba ukushintsha okunesivinini esikhulu kunciphisa usayizi, isisindo kanye nezindleko zezingxenye ze-passive kugesi, i-Navitas ilinganisela ukuthi ama-IC kagesi we-GaNFast onga u-5% wezindleko zempahla yesistimu ye-LLC-stage, kanye no-$64 ngokuphakelwa kwamandla kagesi ngaphezu kweminyaka emi-3.
Idizayini isebenzisa i-'Common Redundant Power Supply' (CRPS) ifomu-factor yesici esichazwe yi-hyperscale Open Compute Project, okuhlanganisa i-Facebook, Intel, Google, Microsoft, ne-Dell.
● Isikhungo sokuklama sase-China sesikhungo sedatha i-GaN
● Ukunikezwa kwe-2400W CPRS AC-DC kunokusebenza kahle okungu-96%.
Isebenzisa i-CPRS, inkundla ye-CRPS185 iletha amandla angu-3,200 W agcwele nge-1U (40 mm) x 73.5mm x 185 mm (544 cc), efinyelela ku-5.9 W/cc, noma cishe ukuminyana kwamandla okungu-100 W/in3.Lokhu ukunciphisa usayizi ngo-40% uma kuqhathaniswa, nendlela efanayo ye-silicon yefa futhi idlula kalula indinganiso yokusebenza kahle kwe-Titanium, ifinyelela ngaphezu kuka-96.5% ngomthwalo ongu-30%, futhi ngaphezu kuka-96% isuka ku-20% iye ku-60% womthwalo.
Uma kuqhathaniswa nezixazululo zendabuko 'ze-Titanium', umklamo we-Navitas CRPS185 3,200 W 'Titanium Plus' osebenza ngomthwalo ojwayelekile ongu-30% unganciphisa ukusetshenziswa kukagesi ngo-757 kWh, futhi wehlise ukukhishwa kwe-carbon dioxide ngo-755 kg phakathi neminyaka emi-3.Lokhu kuncipha kulingana nokonga amalahle angama-303 kg.Akusizi nje kuphela amakhasimende esikhungo sedatha ukuthi azuze ukonga izindleko kanye nokwenza ngcono ukusebenza kahle, kodwa futhi kunomthelela ezinhlosweni zemvelo zokongiwa kwamandla kanye nokunciphisa ukungcola.
Ngokungeziwe kumaseva esikhungo sedatha, idizayini yesithenjwa ingasetshenziswa ezinhlelweni ezifana nokunikezwa kwamandla okushintsha/umzila, ukuxhumana, nezinye izinhlelo zokusebenza zekhompuyutha.
“Ukuduma kwezinhlelo zokusebenza ze-AI njenge-ChatGPT kuseyisiqalo nje.Njengoba amandla e-data center rack enyuka ngo-2x-3x, afinyelela ku-100 kW, ukuletha amandla engeziwe endaweni encane kubalulekile, "kusho uCharles Zha, i-VP kanye ne-GM ye-Navitas China.
"Simema abaklami bamandla nabaklami bezinhlelo ukuthi basebenzisane ne-Navitas futhi bathole ukuthi umhlahlandlela ophelele wokusebenza kahle okuphezulu, imiklamo yokuminyana kwamandla aphezulu ingabiza kanjani, futhi isheshise ngokuqhubekayo ukuthuthukiswa kweseva ye-AI."
Isikhathi sokuthumela: Sep-13-2023