Abstract: A component assembly for power electronics, having at least one power module, at least one separate connection module, a separate control circuit carrier, and a housing. The at least one power module, the at least one connection module, and the separate control circuit carrier are arranged in a specified manner in the housing. The at least one power module is connected via first electrical signal lines to the at least one connection module and the at least one connection module is connected to the control circuit carrier via second electrical signal lines.

Abstract: A method, by a control device, to activate an active discharge circuit to discharge a capacitive energy storage of at least one electrical consumer of an on-board power supply for a motor vehicle. An energy source for the on-board power supply can be coupled to the on-board power supply and be disconnected from the on-board power supply by a switching device. The control device receives a signal (S) for activating the active discharge circuit, examines, after receiving the signal (S), if the energy source is disconnected from the on-board power supply according to at least one first criterion, and activates the active discharge circuit only upon satisfaction of a condition that the energy source has been disconnected from the on-board power supply according to the at least one first criterion.