Magnetic angular position sensor circuit

Abstract

Sensor arrangements are disclosed. A magnetic sensor is mounted to a printed circuit board. A pole element is arranged next to the magnetic sensor. The pole element acts as a magnetic field concentrator for the magnetic sensor. A movable magnet may be positioned in proximity to the magnetic sensor and the pole element. The movable magnet may be held in a magnet holding element. The magnet holdingelement may be attached to a rotatable element, such as a shaft.

Description

Technical field [0001] The present disclosure relates generally to sensor circuits. More specifically, the present disclosure relates to magnetic angle position sensor circuits. Background technique [0002] The use of electronic equipment in vehicles is increasing. For example, angular position sensors can be used in vehicles to sense the rotational positions of axles, axles, vane-throttle valves, etc. [0003] The angular position sensors commonly used in automotive applications are magnetic effect sensors. The magnetic field effect sensor uses a magnetic induction element to detect changes in the magnetic field, and then converts the change in the magnetic field into an electrical signal output corresponding to the angular position of the component (for example, axle, axle, etc.). Such a magnetic angular position sensor changes the magnetic flux density applied to the magnetic effect sensor by changing the air gap in response to angular movement. However, the varying air gap...

AI Technical Summary

Problems solved by technology

However, such irregularly shaped magnets are known to be expensive to manufacture, thus increasing the cost of commonly used angular position sensors

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