IT1405794B1 - Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala - Google Patents

Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala

Info

Publication number
IT1405794B1
IT1405794B1 ITTO2010A000942A ITTO20100942A IT1405794B1 IT 1405794 B1 IT1405794 B1 IT 1405794B1 IT TO2010A000942 A ITTO2010A000942 A IT TO2010A000942A IT TO20100942 A ITTO20100942 A IT TO20100942A IT 1405794 B1 IT1405794 B1 IT 1405794B1
Authority
IT
Italy
Prior art keywords
magnetic field
field sensor
reading circuit
automatic scaling
scaling adjustment
Prior art date
Application number
ITTO2010A000942A
Other languages
English (en)
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 ITTO2010A000942A priority Critical patent/IT1405794B1/it
Priority to US13/302,944 priority patent/US10473731B2/en
Priority to US13/302,953 priority patent/US9013175B2/en
Publication of ITTO20100942A1 publication Critical patent/ITTO20100942A1/it
Application granted granted Critical
Publication of IT1405794B1 publication Critical patent/IT1405794B1/it
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
    • G01R33/02—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Magnetic Variables (AREA)
ITTO2010A000942A 2010-11-26 2010-11-26 Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala IT1405794B1 (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO2010A000942A IT1405794B1 (it) 2010-11-26 2010-11-26 Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala
US13/302,944 US10473731B2 (en) 2010-11-26 2011-11-22 Magnetic sensor reading device, system and 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
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
ITTO2010A000942A IT1405794B1 (it) 2010-11-26 2010-11-26 Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala

Publications (2)

Publication Number Publication Date
ITTO20100942A1 ITTO20100942A1 (it) 2012-05-27
IT1405794B1 true IT1405794B1 (it) 2014-01-24

Family

ID=43743105

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO2010A000942A IT1405794B1 (it) 2010-11-26 2010-11-26 Circuito di lettura per un sensore di campo magnetico con regolazione automatica di fondo scala

Country Status (1)

Country Link
IT (1) IT1405794B1 (it)

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
ITTO20100942A1 (it) 2012-05-27

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