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Why NVIDIA’s 800 VDC Shift Signals a New Architecture
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Fewer conversion stages
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Higher voltage distribution
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Medium-frequency power conversion
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Reduced thermal losses
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Improved system efficiency at rack scale
What Changes at the Infrastructure Level
Across all of these shifts, magnetics becomes the determining factor in the viability of rectifiers, converters, and step-down systems.
Higher voltage and higher power density place new requirements on inductors and transformers — especially in architectures where space, thermal behavior, and efficiency are tightly constrained.
This shift is not happening in isolation. The transition to 800 VDC is being shaped through industry collaboration within the Open Compute Project ecosystem, bringing together AI platform leaders, cloud operators, power and infrastructure companies, and silicon providers to develop interoperable, open power architectures.
Designing with Magnetics Up Front Strengthens 800 VDC Architectures
Inductors and transformers shape key elements of 800 VDC performance—from thermal behavior to switching limits and overall efficiency. Engaging magnetics early helps align topology, layout, and system goals, creating a smoother development path and more predictable results.
The Three Stages of 800 VDC Adoption
CorePower Magnetics' alignment across the full 800 VDC architectural roadmap.
Stage 1: Retrofit 800 VDC
Existing facilities introduce 800 VDC alongside legacy AC infrastructure, most commonly implemented using sidecar or side-mounted power architectures to support high-density AI racks.
Where CorePower fits:
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CPMLMAX™ inductors for medium-frequency LV rectification
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Transformers for DC-DC step-down paths
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Compact, efficient components for constrained retrofit environments
Stage 2: Hybrid AC + 800 VDC
AC and DC coexist as 800 VDC becomes the primary distribution path, often described as a centralized or row-level power architecture supporting scalable AI infrastructure.
Where CorePower fits:
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CPMLMAX™ in standardized 800 VDC rectifier blocks
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DC-DC transformers supporting lower-voltage conversion for compute modules
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Emerging CPMTMAX™ transformer line for high-power, medium-frequency operation
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Stage 3: Full DC Architecture
Direct medium-voltage (MV) input stepping down to 800 VDC and then to rack-level voltages, enabling one-step conversion and SST-aligned architectures designed for next-generation AI data centers.
Where CorePower fits:
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Medium-voltage magnetics for MV→LV and MV→800 VDC interfaces
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Medium-frequency transformers for high-density DC-DC conversion
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Inductors for filtering and current regulation within DC-DC conversion paths
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Future standardized components supporting SST-aligned architectures
In all three stages, CorePower provides the magnetics foundation required to move from a conceptual DC architecture to a deployable, scalable electrical system.
Stepping Down 800 VDC — The Central Challenge
AI processors don't operate at 800 VDC.
They require tightly regulated lower voltages delivered with very high current.
This places enormous demands on DC-conversion stages:
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High switching frequencies
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Compact magnetic components for high value data center white spaces
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Minimal thermal losses
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Predictable performance under heavy load
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Voltage isolation and reliability across long duty cycles
Inductors and transformers determine the efficiency of every one of these steps.
CorePower’s Product Alignment with 800 VDC Power Conversion
Compact, high-efficiency magnetics designed for power-dense 800 VDC systems—backed by U.S. manufacturing for supply chain resilience and scalable deployment.
Engineered Medium-Frequency Transformers
Stages 1–3
Purpose: DC-DC conversion for stepping 800 VDC to lower system voltages in hybrid AC/DC and BESS-integrated architectures
Value: Optimized for high-power density and thermally constrained designs
Standardized Transformers | CPMTMAX™
UPCOMING
Stages 1–3
Purpose: DC-DC step-down for standardized 800 VDC power conversion across hybrid and full-DC architectures, including BESS-integrated systems
Value: Production-ready, standardized form-factors with repeatable electrical performance at scale
Standardized Medium Frequency Inductors | CPMLMAX™
Stages 1–3
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Purpose: LV rectification in 800 VDC distribution systems across retrofit, hybrid, and full-DC architectures
Value: Production-ready, standardized form-factors with thermal stability and scalable performance
Engineered Medium-Frequency Inductors
Stages 1–3
Purpose: Engineered-to-order LV rectifier and DC-DC conversion paths in 800 VDC systems where current density, form factor, or thermal constraints exceed standardized solutions
Value: Custom current handling and form-factor flexibility to maintain thermal stability in high-density power designs
Emerging
Emerging: Medium Frequency, Medium-Voltage Solutions
Stages 2–3
Purpose: Medium-frequency, medium-voltage magnetics enabling MVDC/MVAC ↔ 800 VDC interfaces for SST-aligned and next-generation MVDC architectures
Value:
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Reduces conversion stages, improves system efficiency, and enables scalable MV-to-rack power delivery
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Developed in collaboration with system architects shaping next-generation 800 VDC and MVDC deployments
This is how CorePower supports the industry across the immediate, intermediate, and ultimate configurations NVIDIA identified.
Why Standardization Matters
AI Data Center buildouts are no longer limited by compute.
They are limited by power availability, integration speed, and thermal performance.
Standardized magnetics reduce risk and accelerate deployment by:
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Eliminating custom design cycles
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Providing predictable parametric behavior
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Enabling faster qualification
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Streamlining rectifier and converter development
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Ensuring consistency across volume manufacturing
Standardization is not a convenience — it’s a requirement for scaling.
800 VDC Is Redefining AI Power Architectures
From retrofit to full DC deployment—CorePower Magnetics™ enables 800 VDC systems at every stage.
©2026 by CorePower Magnetics™.