- IAV and Nexperia combined GaN and SiC technologies in the ONE Inverter concept for high-voltage EV architectures.
- The concept enables battery cells to contribute based on individual condition, improving utilization and system robustness.
IAV and Nexperia introduced the ONE Inverter Concept on June 11, showcasing an approach to next-generation high-voltage architectures for electric mobility. The concept combines Nexperia’s gallium nitride (GaN) and silicon carbide (SiC) semiconductor technologies with IAV’s expertise in software-defined systems and battery engineering. A laboratory demonstrator has already validated the concept, which was jointly presented during AABC Europe 2026 and PCIM Europe 2026.
The ONE Inverter Concept is designed to manage battery cells according to their actual condition rather than limiting overall battery performance to the weakest cell in the pack. By enabling each battery cell to contribute based on its individual capabilities, the architecture aims to improve battery utilization while enhancing overall system robustness. This approach can help maximize the usable energy available from battery systems and support more efficient operation in electric mobility applications.
Nexperia’s bidirectional GaN device plays a central role in the concept by enabling fast and efficient battery-cell-level switching. This capability supports a practical and cost-effective implementation, while additional semiconductor components contribute to the overall system architecture. The use of advanced semiconductor technologies allows the concept to address battery management challenges with greater flexibility and precision.
Through a software-defined architecture, battery sections can be dynamically controlled and allocated according to operating requirements. This enables functions that traditionally require multiple dedicated power electronics systems to be integrated into a single system concept. As a result, the ONE Inverter Concept demonstrates how advanced semiconductor devices and software-driven control strategies can work together to support the evolution of future electric vehicle powertrain architectures.
Frequently Asked Questions
What is the ONE Inverter Concept developed by IAV and Nexperia?
The ONE Inverter Concept is a high-voltage electric mobility architecture that combines GaN and SiC semiconductor technologies with software-defined battery management. It allows battery cells to operate according to their individual condition rather than being restricted by the weakest cell in the battery pack. The concept has been validated through a laboratory demonstrator and is intended to improve battery utilization, system flexibility, and robustness while consolidating functions that are traditionally handled by separate power electronics systems.
How does the ONE Inverter Concept improve battery performance?
The concept improves battery performance by enabling individual battery cells to contribute based on their actual capabilities. Using bidirectional GaN devices for battery-cell-level switching and software-defined control, the system dynamically manages battery sections to optimize operation. This approach can increase usable battery capacity, enhance system robustness, and support more efficient energy management. It also creates opportunities to integrate multiple power electronics functions into a unified architecture, potentially reducing complexity and improving overall system efficiency.
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