By dynamically controlling and allocating battery sections through a software-defined architecture, functions that currently depend on separate power electronics systems can be combined into a single system concept. IAV developed the software-defined system architecture and battery control strategy, while Nexperia contributed the necessary broadband semiconductor technologies.

A key advantage of the ONE Inverter concept is that the battery cells can be managed according to their actual condition. Instead of the entire battery being limited by its weakest cell, each cell can contribute according to its capabilities. This can improve battery utilization and increase system robustness.

This approach is made possible by Nexperia's advanced broadband semiconductor technologies, particularly a bidirectional GaN device, which enables efficient and rapid switching at the battery cell level, making the approach technically and economically viable. Alternative semiconductor solutions would significantly increase the system's complexity and cost. Furthermore, other components from Nexperia's broad semiconductor portfolio, including bipolar devices, support the overall system design.

“IAV’s strength lies in translating technological innovation into system-level solutions for our customers. Together with Nexperia, we are exploring how software-defined battery architectures can achieve new levels of efficiency, flexibility, and resilience for future software-defined vehicles,” said Jörg Astalosch, CEO of IAV.

“Strong partnerships are key to driving innovation in next-generation vehicle architectures. By combining our expertise in broadband semiconductors—encompassing both SiC and GaN—with the advanced system concepts of our partner IAV, we are enabling new approaches to electric mobility design from the ground up. Close collaboration at an early stage allows us to align semiconductor and system requirements and translate innovative ideas into scalable, high-performance solutions,” said Edoardo Merli, Senior Vice President and Head of the Broadband, IGBT and Modules (WIM) Business Group at Nexperia.

A laboratory demonstrator has validated the ONE Inverter concept and has been jointly presented by IAV and Nexperia at the Advanced Automotive Battery Conference (AABC) Europe 2026 and at PCIM Europe 2026.