IT1405795B1 - READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD - Google Patents

READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD

Info

Publication number
IT1405795B1
IT1405795B1 ITTO2010A000943A ITTO20100943A IT1405795B1 IT 1405795 B1 IT1405795 B1 IT 1405795B1 IT TO2010A000943 A ITTO2010A000943 A IT TO2010A000943A IT TO20100943 A ITTO20100943 A IT TO20100943A IT 1405795 B1 IT1405795 B1 IT 1405795B1
Authority
IT
Italy
Prior art keywords
magnetic field
field sensor
reading
sensitivity calibration
relative
Prior art date
Application number
ITTO2010A000943A
Other languages
Italian (it)
Inventor
Enrico Pozzati
Benedetto Vigna
Fabio Bottinelli
Original Assignee
St Microelectronics Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by St Microelectronics Srl filed Critical St Microelectronics Srl
Priority to ITTO2010A000943A priority Critical patent/IT1405795B1/en
Priority to US13/302,953 priority patent/US9013175B2/en
Priority to US13/302,944 priority patent/US10473731B2/en
Publication of ITTO20100943A1 publication Critical patent/ITTO20100943A1/en
Application granted granted Critical
Publication of IT1405795B1 publication Critical patent/IT1405795B1/en
Priority to US14/663,092 priority patent/US9151806B2/en
Priority to US14/834,088 priority patent/US9360533B2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
    • G01R33/0029—Treating the measured signals, e.g. removing offset or noise
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Magnetic Variables (AREA)
ITTO2010A000943A 2010-11-26 2010-11-26 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD IT1405795B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO2010A000943A IT1405795B1 (en) 2010-11-26 2010-11-26 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD
US13/302,953 US9013175B2 (en) 2010-11-26 2011-11-22 Reading circuit for a magnetic field sensor with sensitivity calibration, and related reading method
US13/302,944 US10473731B2 (en) 2010-11-26 2011-11-22 Magnetic sensor reading device, system and method
US14/663,092 US9151806B2 (en) 2010-11-26 2015-03-19 Reading circuit for a magnetic field sensor with sensitivity calibration, and related reading method
US14/834,088 US9360533B2 (en) 2010-11-26 2015-08-24 Reading circuit for a magnetic field sensor with sensititivy calibration, and related reading method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2010A000943A IT1405795B1 (en) 2010-11-26 2010-11-26 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD

Publications (2)

Publication Number Publication Date
ITTO20100943A1 ITTO20100943A1 (en) 2012-05-27
IT1405795B1 true IT1405795B1 (en) 2014-01-24

Family

ID=43743106

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO2010A000943A IT1405795B1 (en) 2010-11-26 2010-11-26 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATIVE READING METHOD

Country Status (1)

Country Link
IT (1) IT1405795B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8269491B2 (en) * 2008-02-27 2012-09-18 Allegro Microsystems, Inc. DC offset removal for a magnetic field sensor
US7936144B2 (en) * 2008-03-06 2011-05-03 Allegro Microsystems, Inc. Self-calibration algorithms in a small motor driver IC with an integrated position sensor

Also Published As

Publication number Publication date
ITTO20100943A1 (en) 2012-05-27

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