Sensor device having a magnetic field sensor integrated with an electronic control circuit

US6373241B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Matthias Weber · Uttenreuth, DE
• Norbert Knab · Appenweier, DE
• Christoph Klappenbach · Laufenburg (Baden), DE
• Guenther Riehl · Bühl, DE
• Martin Hager · Jena, DE
• Friedrich-Wilhelm Dreier · Baden-Baden, DE
• Michael Soellner · Bühl, DE
• Olaf Bock · Laufenburg (Baden), DE

Key dates

• Filing date: Nov 12, 1999
• Grant date: Apr 16, 2002
• Expiry date: Nov 12, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P3/487
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a sensor device including a magnetic field sensor which is arranged in stationary fashion and configured as a Hall sensor and is magnetically coupled to at least one stationary magnetic flux conductor which senses a variable magnetic field and delivers it to the Hall sensor, the Hall sensor delivering to an electronic control circuit an electrical signal which depends on the change in the magnetic field, in order to achieve a reduction in the space required for the electronic control circuit and the Hall sensors it is proposed the at least one Hall sensor, combined with at least one element of the electronic control circuit into an application-specific integrated circuit (ASIC), be arranged in an electronic component.