The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2011
Filed:
Jun. 04, 2008
Christian Schott, Bevaix, CH;
Christian Schott, Bevaix, CH;
Melexis NV, Microelectronic Integrated Systems, Ypres, BE;
Abstract
A magnetic angle sensorcomprises a bulk substrate; a circular wellprovided upon the bulk substrate; an even numbered plurality of electrodes-spaced at regular intervals in a ring formation over the circular well; and a pair of biasing electrodes for selectively applying a progressive succession of differently directed bias currentsto and/or using the said ring of electrodesto provide a succession of Hall potentials indicative of the relative magnitude of successive differently oriented magnetic field components B in the plane of the magnetic angle sensor. The sensoroperates cyclically and the full progressive succession cycle involves applying and/or using each electrodein the ring at least once for applying a bias current and/or sensing a Hall potential. In such a manner, the full cycle comprises the progressive succession of the axis of measurement of the sensorthrough a complete rotation within the plane of the sensor. By monitoring the phase of the generated signal or monitoring the zero crossings of the generated signal the orientation of the magnetic field coin the plane of the sensor can be determined.