Micronas Gmbh

Dieter Baecher

Joerg Franke

Wolfgang Horn

Joachim Ritter

David Muthers

Thilo Rubehn

Gert Umbach

A method for determining an angle of rotation between a sensor array and a magnetic field of a magnet, whereby the magnetic field is formed substantially parallel and perpendicular to the rotation axis, and the magnet is arranged rotationally symmetric relative to the rotation axis. A first measurement signal and a second measurement signal are generated by the two subsensors of the first magnetic field sensor unit, and the first measurement signal is assigned a first relation and the second measurement signal is assigned a second relation. A third measurement signal and a fourth measurement signal are generated by the two subsensors of the second magnetic field sensor unit, whereby the third measurement signal is assigned a third relation and the fourth measurement signal is assigned a fourth relation. The angle of rotation is then determined.

Method for determining an angle of rotation

A method for monitoring the function of a sensor module including sensor which generates a measurement signal for a physical quantity to be determined and applies the measurement signal to an output terminal in an unchanged form or in processed form. In addition, a test signal is generated whose spectrum lies outside the spectrum of the measurement signal. The test signal is supplied at a place in the sensor from which it reaches the output terminal in unchanged form or in processed form only in the case of a functional sensor. An output signal present at the output terminal is compared with the test signal and a diagnosis signal is generated, which indicates whether the test signal is present at the output terminal. The test signal is filtered out of the output signal and the remaining signal is applied as the measurement signal at an output of the sensor module.

Sensor module and method for monitoring the function thereof

The invention relates to an integrated circuit arrangement with connection contacts for the serial exchange of data and/or signals with external components and apparatuses and with a control apparatus and/or a serial interface for the clocked receiving of data by means of a signal voltage on such a connection contact, which voltage is modulated between at least one low, one middle and one high voltage state. The control apparatus and/or the interface are designed in such a manner that data is sent in a sending mode via the connection contact in that the switching apparatus, after having received a slope changing in particular from the middle voltage state into in particular the higher or the lower voltage state, pulls the voltage state into the in particular opposite lower or higher voltage state. Furthermore, the invention relates to an apparatus and a process for operating such a circuit arrangement.

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Sexau, Germany

Dieter Baecher