Patent ID: 7071661

Claim:
A method for dynamically balancing a circuit of semiconductor power switches, wherein each semiconductor power switch comprises a first power terminal or collector, a second power terminal or emitter and at Least one control terminal or gate, wherein a switching command for initiating a switching process of the circuit is fed to the control terminal and the control terminal can be driven by means of an individual switching signal depending on a control loop offset of a state function of the semiconductor power switch, wherein: a) the state function is a time-dependent asynchronous state variable, an actual value of which is measured at at least one synchronous sampling time, wherein the synchronous sampling time is determined based on a synchronous event of the circuit for each semiconductor power switch individually, and b) in the same or in one of the following switching cycles the switching signal is offset in time or its amplitude is varied such that the control loop offset between the actual value and a predefined desired value is reduced.