Driving decarbonization in AI server racks with highly efficient battery backup solutions from 4 to 12 kW

Infineon offers a comprehensive portfolio of semiconductor solutions tailored to meet the specific demands of battery backup units in AI datacenters. Our innovative products enable efficient, reliable, and scalable power conversion, ensuring uninterrupted operation of these critical facilities.

In particular, our Partial Power Converter (PPC) stands out as a top-notch solution for battery backup units, offering exceptional performance, flexibility, and efficiency. By leveraging both Silicon (Si) and Gallium Nitride (GaN) technologies, as well as various topologies, we are able to provide a range of optimized solutions for different power levels.

To further demonstrate the capabilities of our semiconductor solutions, we are building complete system demonstrators for battery backup units, showcasing the advantages of our PPC technology in real-world applications. These demonstrators will highlight the benefits of our products in terms of efficiency, reliability, and scalability, providing a clear path forward for the development of next-generation AI datacenters.

Do you want to dive deeper into Infineon’s product portfolio for battery backup? Check out our interactive block diagram here, or watch our latest webinar on-demand.

Battery back-up unit roadmap
Battery back-up unit roadmap
Battery back-up unit roadmap

Battery backup unit solutions overview

System features

  • Infineon proprietary topology
  • Continuous power flow
  • Lower voltage rating components

Customer benefits

  • Power scalability
  • Low input and output ripple
  • Ultra high efficiency and power density

Highlight products

  • XMC™ Microcontrollers
  • 40 V & 80 V OptiMOS™
  • EiceDRIVER™ Gate Drive
Get more information

System features

  • Infineon proprietary topology
  • Combination of Si and GaN
  • Integrated in a battery mockup

Customer benefits

  • Ultra high efficiency
  • High power density

Highlight products

  • OptiMOS™ Silicon MOSFETs
  • CoolGaN™ GaN transistors
  • XMC™ Microcontrollers
  • EiceDRIVER™ Gate drivers
Get more information

In this design, a single 4 kW power converter card has been developed with a superior increase of power density by 400%, enabling best-in-class efficiency. Even higher power levels can be achieved by paralleling multiple cards together on a motherboard. For instance, three 4 kW cards can be combined to create a 12 kW system, offering unsurpassed performance and flexibility.

This modular approach offers several advantages, including ease of scalability, improved reliability, and simplified maintenance.

By paralleling multiple cards, the system can easily be scaled up or down to meet specific power requirements, without the need for a complete redesign. Additionally, if one card were to fail, the system can continue to operate at a reduced capacity, minimizing downtime and ensuring high reliability.

The use of a motherboard to connect multiple cards enables a high degree of flexibility and customization. A variety of configurations can be easily be achieved by adding or removing cards, allowing the system to be tailored to specific application requirements. Furthermore, the modular design simplifies the manufacturing and testing process, as individual cards can be tested and validated before being integrated into the larger system.

Get more information

System features

  • Infineon proprietary topology
  • Continuous power flow
  • Lower voltage rating components

Customer benefits

  • Power scalability
  • Low input and output ripple
  • Ultra high efficiency and power density

Highlight products

  • XMC™ Microcontrollers
  • 40 V & 80 V OptiMOS™
  • EiceDRIVER™ Gate Drive
Get more information

System features

  • Infineon proprietary topology
  • Combination of Si and GaN
  • Integrated in a battery mockup

Customer benefits

  • Ultra high efficiency
  • High power density

Highlight products

  • OptiMOS™ Silicon MOSFETs
  • CoolGaN™ GaN transistors
  • XMC™ Microcontrollers
  • EiceDRIVER™ Gate drivers
Get more information

In this design, a single 4 kW power converter card has been developed with a superior increase of power density by 400%, enabling best-in-class efficiency. Even higher power levels can be achieved by paralleling multiple cards together on a motherboard. For instance, three 4 kW cards can be combined to create a 12 kW system, offering unsurpassed performance and flexibility.

This modular approach offers several advantages, including ease of scalability, improved reliability, and simplified maintenance.

By paralleling multiple cards, the system can easily be scaled up or down to meet specific power requirements, without the need for a complete redesign. Additionally, if one card were to fail, the system can continue to operate at a reduced capacity, minimizing downtime and ensuring high reliability.

The use of a motherboard to connect multiple cards enables a high degree of flexibility and customization. A variety of configurations can be easily be achieved by adding or removing cards, allowing the system to be tailored to specific application requirements. Furthermore, the modular design simplifies the manufacturing and testing process, as individual cards can be tested and validated before being integrated into the larger system.

Get more information

Battery backup evolution in the age of AI

Data centers are pushing power density to the limit, especially for battery backup units. Discover a scalable, partial power converter-based BBU that separates power from control, delivers up to 3 kW per power card (scaling to 12 kW), and reaches up to 99.5% peak efficiency—maximizing space and performance in modern racks.