Abstract: An inductive rotor position sensor device for detecting a rotor angular position of a rotor of an electric machine. The inductive rotor position sensor device includes a transmitter coil for generating electromagnetic waves and a receiver coil for detecting the electromagnetic waves generated by the transmitter coil and influenced by the rotor, and includes a processing unit, which is designed to activate the transmitter coil and to evaluate the electromagnetic waves detected by the receiver coil for determining the rotor angular position. The coils and the processing unit are situated on a shared circuit board. The coils are situated on a front side, and the processing unit is situated on a rear side of the circuit board which faces away from the front side.

Abstract: An inductive positioning sensor (100) for small electrical and electronic applications that allows to achieve a higher induced voltage output. The inductive positioning sensor (100) is arranged in a multi-layer printed circuit board, that comprises an excitation coil (1) and at least one receiver coil A (2) and a corresponding duplicated receiver coil A (22), where the excitation coil circularly surrounds the limits defined by the at least one receiver coil A (2) and the corresponding duplicated receiver coil A (22). The at least one receiver coil A (2) comprises a main convergence point (106) and at least one auxiliary convergence point (104), and the corresponding duplicated receiver coil A (22) comprises at least one auxiliary convergence point (104). The at least one receiver coil A (2) and the corresponding duplicated receiver coil A (22) merge together in a secondary convergence point (104).

Abstract: An inductive position sensor includes (i) a coupling element which can be arranged on a movable element, (ii) at least one sensor unit for detecting a position of the coupling element, the sensor unit having at least one controllable transmitter coil for generating electromagnetic waves and at least one receiver coil for detecting the electromagnetic waves generated by the transmitter coil and influenced by the coupling element, and (iii) a printed circuit board having a plurality of layers. The coils of the sensor unit are formed on the printed circuit board. The transmitter coil and the receiver coil are distributed on the layers of the printed circuit board in such a way that at least some sections of the transmitter coil are axially opposite the receiver coil with respect to an axis oriented perpendicularly to the printed circuit board.

Abstract: An inductive position sensor device for detecting the position of a coupling element which can be arranged on a movable actuator element of an electric machine is disclosed. The inductive position sensor device includes (i) at least one transmitter coil for generating electromagnetic waves, (ii) at least one receiver coil for detecting the electromagnetic waves which are generated by the transmitter coil and are influenced by the actuator element, and (iii) a computing unit which is designed to actuate the transmitter coil and evaluate the electromagnetic waves detected by the receiver coil in order to determine the position. The coils are arranged on a front face of a common printed circuit board, and the computing unit is arranged on a rear face of the common printed circuit board. The coils are electrically connected to the computing unit by connection lines which extend along the printed circuit board and through the printed circuit board. The connection lines run substantially parallel to one another.

Abstract: An inductive rotor position sensor device for detecting a rotor angular position of a rotor of an electric machine. The inductive rotor position sensor device includes a transmitter coil for generating electromagnetic waves and a receiver coil for detecting the electromagnetic waves generated by the transmitter coil and influenced by the rotor, and includes a processing unit, which is designed to activate the transmitter coil and to evaluate the electromagnetic waves detected by the receiver coil for determining the rotor angular position. The coils and the processing unit are situated on a shared circuit board. The coils are situated on a front side, and the processing unit is situated on a rear side of the circuit board which faces away from the front side.