Leoni Bordnetz-systeme Gmbh

Wolfgang Koch

Matthias Ebert

Martin Roesler

A system and a method for identifying a non-switching semiconductor switch are proposed. The system has a first acquisition component, a second acquisition component and a determination unit. The first acquisition component is designed to acquire a profile of an electrical variable of a first semiconductor switch driven by way of a first drive signal. The second acquisition component is designed to acquire a profile of an electrical variable of a second semiconductor switch driven by way of a second drive signal and connected in parallel with the first semiconductor switch. The determination unit is designed to use the profile of the electrical variable of the first semiconductor switch and the profile of the electrical variable of the second semiconductor switch as a basis for determining an output signal that allows identification of a non-switching semiconductor switch for the first semiconductor switch and/or the second semiconductor switch.

System and method for identifying non-switching semiconductor switches

The invention relates to a system () and a method for identifying a non-switching semiconductor switch (). The system () comprises a first semiconductor switch (), a first semiconductor component (), a second semiconductor switch (), a second semiconductor component (), a first resistor (), a second resistor () and a detection unit (). The detection unit () is designed to identify, on the basis of a curve of a first voltage dropping across the first resistor (), whether the first semiconductor switch () is not switching. The detection unit () is designed to identify, on the basis of a curve of a second voltage dropping across the second resistor (), whether the second semiconductor switch () is not switching.

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Buchbrunn, Germany

Wolfgang Koch