Invention Application
- Patent Title: EXTERNAL MAGNETIC FIELD ANGLE DETERMINATION
- Patent Title (中): 外部磁场角测定
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Application No.: PCT/IB2008051593Application Date: 2008-04-24
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Publication No.: WO2008146184A2Publication Date: 2008-12-04
- Inventor: BUTZMANN STEFAN
- Applicant: NXP BV , BUTZMANN STEFAN
- Assignee: NXP BV,BUTZMANN STEFAN
- Current Assignee: NXP BV,BUTZMANN STEFAN
- Priority: EP07109055 2007-05-29
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01C17/00 ; G01D5/00 ; G01D5/14 ; G01R33/09
Abstract:
Magnetoresistive sensors are commonly used for angular detection in many automotive applications. According to an exemplary embodiment of the present invention, a sensor is provided in which a first half-bridge has magnetoresistive resistors with barber-pole stripes and in which a second half-bridge has magnetoresistive resistors without barber-pole stripes. One of the resistors without barber-pole stripes is rotated with respect to the other three resistors by 90°. This may provide for an improved angle determination with reduced angular errors due to offset.
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