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Power engineers designing AI server racks face a topology fork: today’s 48 V single-phase infrastructure tops out around 250 kW per rack, while GPU clusters already push beyond that. Infineon engineers lay out every conversion stage from medium-voltage AC input to sub-1 V core rail, with validated reference design and solutions for each node.
- 12 kW single-phase PSU at 97.8% peak efficiency, 113 W/in³
- BBU reference designs at 12 kW and 24 kW with 4× density gain
- 800 V–50 V HV IBC at 98% full-load efficiency, 2.5 kW/in³
- Hot-swap and eFuse controllers for 48 V and ±400/800 V buses
Key functional blocks addressed:
- Power Supply Unit
- Battery Back-up Unit
- IBC
- Power path protection
- Second stage
- Reliability modeling
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