CPC H02M 7/53875 (2013.01) [H02P 3/22 (2013.01); H02P 23/0027 (2013.01)] | 9 Claims |
1. A control device for an inverter comprising three half-bridges each having a first power switching element connected to a first DC voltage potential and a second power switching element connected to a second DC voltage potential, wherein the control device is arranged for driving the first and second power switching elements to convert a DC voltage present between the DC voltage potentials into a polyphase AC current in a normal operating mode and for transferring the inverter from the normal operating mode to a safe operating mode,
wherein the control device is further set up to drive the first and second power switching elements alternately in the safe operating mode for switching single-phase active short circuits and for switching two-phase active short circuits.
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