Inverter for an electrical machine, electrical machine with such an inverter and steering system with such an electrical machine

摘要

The invention relates to an inverter (10) for an electrical machine (100), the inverter (10) having a half-bridge circuit (20) with switches (22) and a control unit (30) for driving the switches (22) of the half-bridge Circuit (20), and wherein the control unit (30) is adapted to detect a fault in the electrical machine (100) and / or the inverter (10). One aspect of the invention is that the control unit (30) is set up to switch the half-bridge circuit (20) to a multiple short circuit in the event of a fault, and the inverter (30) also has a disconnect switch (40) to disconnect the Inverter (10), in particular the half-bridge circuit (20), from a supply voltage (50), and wherein the control unit (30) is set up to switch the isolating switch (40 ).The invention also relates to an electrical machine (100) with an inverter (10) according to the invention and a steering system with an electrical machine (100) according to the invention.