Abstract: A pulse inverter includes a pulse inverter housing, in which at least one power electronics is provided, wherein at least the pulse inverter housing is configured to be cooled by a flowing coolant through housing means. The power electronics includes at least one controller, a gate driver, and a semiconductor element. For switching a semiconductor element, the gate driver provides a turn-on voltage UGS and a turn-off voltage U0 and is actuatable by the controller for this purpose. The controller includes control means, via which a withstand voltage UR<UGS is adjustable, whereby a power dissipation PV can be generated, causing the power electronics and/or the coolant to heat up.

Abstract: A switching arrangement for a motor vehicle powered at least partially electrically, including at least one inverter for converting a DC voltage of a high-voltage battery into a multi-phase AC voltage for a travel drive, at least one intermediate circuit capacitor connected to the inverter, and at least one pre-charge resistor, wherein, in a pre-charge mode, the pre-charge resistor serves to prevent current spikes during charging of the at least one intermediate circuit capacitor and, in a heating mode, serves for heating a coolant, wherein electrical current flows through the inverter in both the pre-charge mode as well as in the heating mode.