Patent ID: 6847174

Claim:
A half-bridge inverter, having the following features: the half-bridge inverter is connected to a positive pole and a negative pole of a power supply, an upper and a lower half-bridge switch (T 1 , T 2 ) that respectively have a control input, a working electrode and a reference electrode, the upper half-bridge switch being coupled with its working electrode to the positive pole, and the lower half-bridge switch being coupled with its reference electrode to the negative pole, a control module that outputs at a control output a rectangular control signal that can have a low state and a high state, and a level shift switch that is coupled to the negative pole and is controlled by the control module the control output of the control module is coupled via an interrupt initiation switch to the control input of the lower half-bridge switch, and the interrupt initiation switch is controlled by the current through the level shift switch in such a way that the interrupt initiation switch is switched on only whenever the current through the level shift switch is below a given threshold.