Space-Saving Reference Designs Streamline AI Data Centers
Offering space savings, simplified designs, improved reliability, and up to 88% efficiency, Power Integrations' latest compact auxiliary power-supply reference designs for 800-V DC AI data centers are optimized for the NVIDIA Kyber liquid-cooled, blade-rack architecture. The single-output, 15-W design measures 30 × 30 mm with a 7-mm profile, while the isolated, six-rail, 35-W design is sized at 80 × 60 mm with an 8-mm profile.
The reference designs free up approximately 30% space on main power-distribution boards, with an estimated 30% reduction in the BOM count to help streamline design and improve overall reliability. Both designs leverage the company's InnoMux-2 ICs with 1,700-V PowiGaN GaN technology. The InnoMux-2 IC supports a 1,000-V DC nominal input voltage in a flyback configuration and can deliver flat efficiency of up to 90% in discontinuous conduction mode while maximizing power delivery.
The DER-1110 design integrates the IMX2353F to deliver a 35-W, multi-output flyback PSU for auxiliary power supplies used in high-voltage AI data centers. And the DER-1114 design employs the IMX2353F to deliver a 15-W, single-output flyback PSU for auxiliary power supplies targeted at high-voltage AI data centers.
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About the Author
Alix Paultre
Editor-at-Large, Electronic Design
An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the US military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications in the embedded electronic engineering space. Alix currently lives in Wiesbaden, Germany.
Also check out his YouTube watch-collecting channel, Talking Timepieces.