Abstract: In a method for controlling a plurality of semiconductors that form a power converter, a protocol for controlling the plurality of semiconductors is transmitted via a signal line between a control unit and the semiconductors. Additionally transmitted via the signal line is a sign-of-life signal, wherein the semiconductors are switched off, when the sign-of-life signal is absent, and the semiconductors of the power converter are switched using optimized pulse patterns.

Abstract: A method for operating switching elements of an inverter of a vehicle that is driven by way of a three-phase synchronous machine. The inverter has a series circuit of switching elements for the phases. When the vehicle brakes, the synchronous machine is used to set a cycle rate for the operation of the switching elements depending on a frequency of AC phase currents of the synchronous machine. The electrical energy provided by the synchronous machine is fed to a DC voltage intermediate circuit. The cycle rate is set according to the frequency of the AC phase currents, such that it corresponds to the frequency of the respective AC phase currents of the synchronous machine. Zero points of the AC phase currents are determined, and the switching elements are operated to set a predefined phase difference between the respective AC phase current and a respectively associated AC phase voltage.

Abstract: A method for operating switching elements of an inverter of a vehicle that is driven by way of a three-phase synchronous machine. The inverter has a series circuit of switching elements for the phases. When the vehicle brakes, the synchronous machine is used to set a cycle rate for the operation of the switching elements depending on a frequency of AC phase currents of the synchronous machine. The electrical energy provided by the synchronous machine is fed to a DC voltage intermediate circuit. The cycle rate is set according to the frequency of the AC phase currents, such that it corresponds to the frequency of the respective AC phase currents of the synchronous machine. Zero points of the AC phase currents are determined, and the switching elements are operated to set a predefined phase difference between the respective AC phase current and a respectively associated AC phase voltage.

Abstract: In a method for controlling a plurality of semiconductors that form a power converter, a protocol for controlling the plurality of semiconductors is transmitted via a signal line between a control unit and the semiconductors. Additionally transmitted via the signal line is a sign-of-life signal, wherein the semiconductors are switched off, when the sign-of-life signal is absent, and the semiconductors of the power converter are switched using optimized pulse patterns.

Abstract: The invention relates to a method for transmitting an actuation signal and a first data signal between a control device and an actuation device of a power semiconductor device. To minimize the expenditure for the operation of the physical transmission channels and the costs for the laying of the physical connection between control device and actuation device, the transmission of the actuation signal and the first data signal between the control device and the actuation device takes place simultaneously and via a common transmission channel, wherein the first data signal is combined with the actuation signal by means of a digital modulation method or coding method. A feedback signal and second data signal are transmitted in the opposite direction. A first coding length is shorter than the interval length of the actuation signal. A second coding length is shorter than the interval length of the feedback signal.

Abstract: The invention relates to a method for transmitting an actuation signal and a first data signal between a control device and an actuation device of a power semiconductor device. To minimize the expenditure for the operation of the physical transmission channels and the costs for the laying of the physical connection between control device and actuation device, the transmission of the actuation signal and the first data signal between the control device and the actuation device takes place simultaneously and via a common transmission channel, wherein the first data signal is combined with the actuation signal by means of a digital modulation method or coding method. A feedback signal and second data signal are transmitted in the opposite direction. A first coding length is shorter than the interval length of the actuation signal. A second coding length is shorter than the interval length: of the feedback signal.