01
Reduced Transmission Losses
Doubling the busbar distribution voltage from 400 VDC to 800 VDC cuts current in half for identical megawatt power levels, resulting in up to 75% reduction in copper busbar I²R resistive losses.
High Efficiency Power Conversion Systems for Hyperscale Data Centers
As hyperscale data centers expand to support intensive Artificial Intelligence (AI), Machine Learning (ML), and high-performance computing (HPC) workloads, traditional electrical power architectures face immense thermal and electrical capacity constraints. Delivering reliable, continuous power with minimal PUE (Power Usage Effectiveness) impact is critical for global facility operators.
Operational Sustainability for Scalable Compute Infrastructures
Modern hyperscale infrastructures manage thousands of high-density server nodes requiring continuous, uncompromised power delivery. Managing megawatts of dynamic load demands efficient voltage conversion steps, hot-swappable redundancy, and seamless thermal dissipation.
Backed by over 40 years of power electronics R&D and manufacturing in Europe, Premium PSU designs high-reliability conversion modules that lower total cost of ownership (TCO) and maximize uptime across critical data processing environments.
Key Infrastructure Metrics Supported
- Up to 98% Conversion EfficiencyReduces thermal losses and continuous power drain at rack and row levels.
- High Power Density PackagingHot-swappable shelf designs engineered for 19-inch and 21-inch OCP server racks.
- 800 VDC Bus Architecture CompatibilityHalves transmission current to significantly lower Joule heating losses.
- Liquid & Immersion Cooling ReadyThermal structures compatible with direct-to-chip and immersion cooling loops.
Transitioning to 800 VDC Power Architectures for AI Workloads
Rising rack power densities—exceeding 100 kW per cabinet for GPU clusters—make traditional 48 V and 400 V DC distribution impractical due to excessive copper cabling weight and resistive dissipation losses.
02
GPU & MW-Scale Load Support
Engineered to absorb severe dynamic step-load transients generated by large language model (LLM) training iterations and peak compute bursts without DC bus voltage sag.
03
Optimized Space & Airflow
Thinner power cabling and compact converters free up critical chassis space inside server cabinets, substantially improving front-to-back ventilation and cooling efficiency.
Power Conversion Platform Specifications
Standard building blocks and custom engineered converters tailored for data center centralized power shelves, battery back-up units (BBU), and DC distribution.
| Feature / Parameter | High-Density Bus Converters | AC/DC Rectifier Shelves | Modular DC/DC Converters |
|---|---|---|---|
| Nominal Input Voltage | 400 VDC / 800 VDC Bus | 3-Phase 380 / 400 / 480 VAC | 24 VDC / 48 VDC / 110 VDC |
| Output Ratings | 12 VDC / 48 VDC / 54 VDC | 400 VDC / 800 VDC Bus Output | Regulated 12 V / 24 V / 48 VDC |
| Peak Efficiency | > 97.5% | > 96.8% | > 95.0% |
| Cooling Method | Forced Air / Liquid Cold-Plate | Internal Variable Fans | Conduction / Convection |
| Redundancy & Parallelism | Active N+1 / N+N Hot-Swap | Current Sharing Rack Integration | Parallel Active Current Share |
| Compliance & Safety | IEC/EN 62368-1, OCP Standards | IEC 61000-3-12, CE, UL Standards | IEC 61010-1, EN 50155 Ruggedized |
Industry Collaboration & Compliance
Aligned with Open Compute Project (OCP) Standards
Premium PSU actively collaborates within open hardware engineering frameworks to advance low-loss, open-architecture power modules for global hyperscalers and co-location providers.
- Form-Factor Integration: Compatible with ORv2 and ORv3 power shelf dimensions and busbar interfaces.
- Digital Management: PMBus™, CANbus, and Modbus communications for telemetry, status monitoring, and remote diagnostics.
- European R&D Quality: Fully compliant with European EMC directive, RoHS, REACH, and rigorous life-cycle fatigue testing.
- Complete Traceability: ISO 9001 certified manufacturing with full component-level serial tracking and qualification reports.
Frequently Asked Questions for Data Center Engineers
Why are hyperscale data centers transitioning to 800 VDC architectures?
Migrating from traditional 400 VDC to 800 VDC bus systems allows data center facilities to double delivered power at equal current levels. This significantly cuts resistive (I²R) losses, improves conversion efficiency up to 98%, reduces copper cabling volume, and minimizes heat burden on cooling systems.
Are Premium PSU power systems suitable for liquid-cooled environments?
Yes. Our high-density converter units can be customized with conduction baseplates designed for direct connection to liquid cooling loops or dielectric immersion tanks, maintaining thermal stability under continuous heavy compute workloads.
Can these modules be customized for proprietary server rack architectures?
Absolutely. Beyond standard OCP and 19-inch rack-mount configurations, our European R&D team specializes in custom mechanical dimensions, specialized input/output pinouts, custom firmware controls, and specific mechanical envelopes.
What communication protocols are supported for telemetry and monitoring?
Our power conversion modules feature digital control interfaces supporting PMBus, CANbus, Modbus TCP/RTU, and IoT gateway connectivity, enabling real-time voltage, current, thermal monitoring, and predictive maintenance diagnostics.
Discuss Your Data Center Power Requirements with Our Engineers
Provide your target input range, rack power envelope, thermal requirements, and compliance standards. Our engineering specialists will recommend optimal building blocks or custom topologies.