Abstract: A sensor and method for determining at least one internal parameter for an active sensor in a special mode of operation. The sensor has at least one sensor element, an evaluation circuit, at least two connecting lines, and a changeover module. The sensor is changed over between a normal mode of operation and the special mode of operation by means of the changeover module and is put into the special mode of operation for the purpose of determining the at least one internal parameter. The sensor has an electric offset source which is used in the special mode of operation to at least partially actuate the evaluation circuit on the basis of the supply voltage of the sensor which is applied to the two connecting lines such that the at least one internal parameter of the sensor can be ascertained from the sensor output signal.

Abstract: Active sensor for switching over into a special operating mode, wherein the sensor has at least one sensor element, one evaluation circuit and two connecting lines, each with a terminal for transmitting the sensor information, wherein a supply voltage of the sensor is applied to the two connecting lines, wherein the sensor comprises a switchover module with which it is possible to switch over between a normal operating mode and a special operating mode by reversing the polarity of the supply voltage which is applied to the two terminals. A method for actuating an active sensor and to the use of the sensor, in particular as a wheel speed sensor, in motor vehicles.

Abstract: A sensor and method for determining at least one internal parameter for an active sensor in a special mode of operation. The sensor has at least one sensor element, an evaluation circuit, at least two connecting lines, and a changeover module. The sensor is changed over between a normal mode of operation and the special mode of operation by means of the changeover module and is put into the special mode of operation for the purpose of determining the at least one internal parameter. The sensor has an electric offset source which is used in the special mode of operation to at least partially actuate the evaluation circuit on the basis of the supply voltage of the sensor which is applied to the two connecting lines such that the at least one internal parameter of the sensor can be ascertained from the sensor output signal.

Abstract: Active sensor for switching over into a special operating mode, wherein the sensor has at least one sensor element, one evaluation circuit and two connecting lines, each with a terminal for transmitting the sensor information, wherein a supply voltage of the sensor is applied to the two connecting lines, wherein the sensor comprises a switchover module with which it is possible to switch over between a normal operating mode and a special operating mode by reversing the polarity of the supply voltage which is applied to the two terminals. A method for actuating an active sensor and to the use of the sensor, in particular as a wheel speed sensor, in motor vehicles.

Abstract: An active sensor consisting of a measuring module and an interface module comprising at least one first current source, an input line and an output line, wherein the active sensor is supplied with energy via these two lines and the first current source is connected on the output side to the output line and the interface module generates the output signals of the active sensor in the form of current signals, wherein the interface module comprises a current sensing device which senses the load current of the measuring module, and a compensating device which can generate, on an output path connected to the output line, a first compensating current for compensating for amplitude fluctuations in the output current signals in dependence on the sensed load current of the measuring module. Also described is a method for compensating for amplitude fluctuations in the output current signals of an active sensor.

Abstract: The invention relates to a computer-supported, automated method for the verification of analog circuits, and to a storage medium on which a computer software program is stored for performing such method, including transforming of constants or variables characterizing a first equation system for describing the properties of a circuit; transforming of constants or variables characterizing a second equation system for describing the properties of a circuit; and performing a circuit equivalence test by using the transformed quantities obtained from transforming.

Abstract: The invention relates to a computer-supported, automated method for the verification of analog circuits (1), and to a storage medium on which a computer software program is stored for performing such method, said method comprising the steps of: transforming of constants or variables (A1, x1), respectively, characterizing a first equation system for describing the properties of a circuit; transforming of constants or variables (A2, x2), respectively, characterizing a second equation system for describing the properties of a circuit; performing a circuit equivalence test by using the transformed quantities (z) obtained from transforming.