Infineon Technologies (Korea CEO Seungsoo Lee) has revolutionized efficiency and ease of maintenance with its 800V AI data center power architecture.

Infineon, in collaboration with NVIDIA, unveiled an 800V direct current (VDC) power architecture for next-generation AI data centers on the 21st.

This technology supports NVIDIA's AI infrastructure strategy announced at Computex 2025, overcoming the limitations of existing 54V infrastructure and dramatically improving power efficiency and ease of maintenance.

With the rapid development of AI, power consumption in data centers is increasing from 120 kW to 500 kW, and is expected to exceed 1 MW by the end of the 2020s.

Accordingly, centralized 800VDC architecture is emerging as a key solution for reducing power loss and increasing system reliability.

Infineon leverages its silicon carbide (SiC)-based CoolSiC™ JFET technology to implement hot-swap functionality in server boards, enabling safe board replacement even while the entire rack is in operation.

This helps minimize downtime and maximize maintenance efficiency.

AI servers can cost up to 30 times more than traditional servers, making highly efficient power systems essential to reduce total cost of ownership (TCO) and minimize carbon footprint.

Infineon is developing three-stage and two-stage power conversion solutions using gallium nitride (GaN)-based high-frequency switching technology and intermediate bus converters (IBCs), targeting efficiencies of up to 98% per conversion stage.

Infineon enables the reliable and sustainable operation of megawatt-class AI server racks by providing a complete system solution based on hot-swap controllers, high-reliability protection technologies, and high-efficiency semiconductor materials.

“There is no AI without power,” said Adam White, president of the Power and Sensor Systems business unit. “We will maximize the value of every watt to build a sustainable AI ecosystem.”