As part of the testing process for electrical and electronic high-voltage components in motor vehicles, the resistance of these components to the dynamics of the vehicle electrical system is also tested in the event of a load dump. The test voltage must be changed by up to **3000 V/ms**. Conventional DC power supply units are generally unable to achieve these slew rates due to their slow signal processing.

This application note demonstrates how the fast HUBERT 4-quadrant power amplifiers are capable of meeting these requirements.