Abstract: A circuit arrangement for switching an inductive load (12, 12a-d) with connections to a power supply source (11, 11?, 11?) by means of which an exciter voltage can be applied to the inductive load (12, 12a-d) in a switched-on state is described, comprising switching means by means of which, depending on a control signal, a power circuit comprising the inductive load (12, 12a-d) and the power supply source connections, can be closed when switched from the switched-off to the switched-on state and opened when switched from the switched-on to the switched-off state, furthermore comprising a first diode (15, 15a-d, 15a?-c?, 15a?-c?) arranged in parallel with the inductive load (12, 12a-d) and so as to block in the switched-on state. This present invention is characterized in that an additional commutation inductance (18) is provided which is arranged in parallel with the inductive load (12, 12a-d) and in series with the first diode (15, 15a-d, 15a?-c?, 15a?-c?).

Abstract: A method of testing the ability of software modules, each executing particular functions, in a device to cooperate using machine code sequences contained in executing software modules, checks the mutual independence and compatibility of the various technical functions. The method includes searching software modules for machine code sequences containing write access to unauthorized areas, ascertaining a respective maximum number of loop passes for each loop and establishing whether or not the respective maximum number of loop passes is limited, and, if reference values are observed, determining that the software modules are able to cooperate, and, if the reference values are not observed, determining that the software modules are not able to cooperate.

Abstract: A circuit arrangement for switching an inductive load (12, 12a-d) with connections to a power supply source (11, 11′, 11″) by means of which an exciter voltage can be applied to the inductive load (12, 12a-d) in a switched-on state is described, comprising switching means by means of which, depending on a control signal, a power circuit comprising the inductive load (12, 12a-d) and the power supply source connections, can be closed when switched from the switched-off to the switched-on state and opened when switched from the switched-on to the switched-off state, furthermore comprising a first diode (15, 15a-d, 15a′-c′, 15a″-c″) arranged in parallel with the inductive load (12, 12a-d) and so as to block in the switched-on state.

Abstract: Electrical consumers receive load current from a supply voltage via two or more power switches. A false-closure detection device includes a measuring device and a diagnostic device for the detection of faults. The measuring device is connected parallel to the power switches and the electrical consumer lying in series with the switches. A diagnostic voltage is compared as the output signal of the measuring device with a reference value for the detection of false closures in the load circuit.