The air-cooled power inverter safely and reliably transfers electrical power from the high voltage battery to a standard 28-volt DC on-board electrical system. In the process, it delivers an outstanding level of efficiency and voltage stability at a low weight and volume. This makes long flying times and large ranges possible. 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 and a variety of different concepts.