Whether AC or DC, high voltage or standard 28-volt DC, the air-cooled power inverter can safely and reliably transfer electrical power between two on-board electrical systems in accordance with the customer’s requirements. In the process, it delivers an outstanding level of efficiency and voltage stability at a low weight and volume. The architecture of its components was specially designed for use in safety-relevant applications for on-board electrical systems. The system meets all of the approval requirements under the most stringent environmental conditions. Its simple design makes it easy to scale up over a broad performance and voltage range. As a result, it is suitable for a wide range of applications in a variety of different on-board electrical systems.