Maximize Efficiency with High-Density HVDC in AI Data Centers

The Blueprint for AI Power Infrastructure

The Compute Crisis

Scaling Beyond the Limits of Power and Density
Modern AI training clusters have leaped from 5 kW to over 100 kW per rack. Legacy power architectures can no longer keep pace with the exponential demand for efficiency and the rapid transient response required by dense GPU arrays.

The Solution

High-Density In-Row HVDC Architecture
Delta’s ±400VDC and 800VDC architectures simplify the power conversion chain by minimizing unnecessary conversion stages, enabling peak efficiencies exceeding 98%. This megawatt-scale architecture is engineered to fit 800 kW of capacity into a single High-Power Rack (HPR) to reclaim valuable white space, while utilizing tailored backup modules—including the BBU for energy hold-up and a specialized CBU—to ensure critical transient stability for high-performance GPUs.

The Strategic Imperative

Solving the Challenges of Next-Gen AI Compute
Delta’s HVDC system fundamentally resolves the most critical pain points in AI environments by rapidly managing volatile GPU power swings to maintain voltage stability, while utilizing an 800V bus to dramatically cut I²R losses, heat generation, and copper costs. This architecture ensures high reliability by combining stringent safety compliance with Redfish-based system monitoring and management, providing a robust, scalable, and manageable solution for high-performance compute infrastructure.

The Compute Crisis

The Solution

The Strategic Imperative

Delta’s Next-Gen HVDC