IT1402178B1 - Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset - Google Patents

Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset

Info

Publication number
IT1402178B1
IT1402178B1 ITTO2010A000740A ITTO20100740A IT1402178B1 IT 1402178 B1 IT1402178 B1 IT 1402178B1 IT TO2010A000740 A ITTO2010A000740 A IT TO2010A000740A IT TO20100740 A ITTO20100740 A IT TO20100740A IT 1402178 B1 IT1402178 B1 IT 1402178B1
Authority
IT
Italy
Prior art keywords
offset
automatic compensation
magnetic field
field sensor
reading
Prior art date
Application number
ITTO2010A000740A
Other languages
English (en)
Inventor
Carmela Marchese
Fabio Bottinelli
Benedetto Vigna
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 ITTO2010A000740A priority Critical patent/IT1402178B1/it
Priority to CN201110274746.8A priority patent/CN102401884B/zh
Priority to CN2011203512681U priority patent/CN202748469U/zh
Priority to US13/403,897 priority patent/US10001530B2/en
Publication of ITTO20100740A1 publication Critical patent/ITTO20100740A1/it
Application granted granted Critical
Publication of IT1402178B1 publication Critical patent/IT1402178B1/it

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
    • 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)
  • Measuring Magnetic Variables (AREA)
ITTO2010A000740A 2010-09-09 2010-09-09 Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset IT1402178B1 (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITTO2010A000740A IT1402178B1 (it) 2010-09-09 2010-09-09 Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset
CN201110274746.8A CN102401884B (zh) 2010-09-09 2011-09-09 用于磁场传感器的读取电路以及相关读取方法
CN2011203512681U CN202748469U (zh) 2010-09-09 2011-09-09 用于读取磁场传感器的读取电路和包括该读取电路的电子器件
US13/403,897 US10001530B2 (en) 2010-09-09 2012-02-23 Reading circuit with automatic offset compensation for a magnetic-field sensor, and related reading method with automatic offset compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2010A000740A IT1402178B1 (it) 2010-09-09 2010-09-09 Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset

Publications (2)

Publication Number Publication Date
ITTO20100740A1 ITTO20100740A1 (it) 2012-03-10
IT1402178B1 true IT1402178B1 (it) 2013-08-28

Family

ID=43739133

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO2010A000740A IT1402178B1 (it) 2010-09-09 2010-09-09 Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset

Country Status (3)

Country Link
US (1) US10001530B2 (it)
CN (2) CN202748469U (it)
IT (1) IT1402178B1 (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1402178B1 (it) * 2010-09-09 2013-08-28 St Microelectronics Srl Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset
US10473731B2 (en) 2010-11-26 2019-11-12 Stmicroelectronics S.R.L. Magnetic sensor reading device, system and method
US9610044B2 (en) * 2011-11-08 2017-04-04 Imec Variable capacitor circuit and method
JP5897719B2 (ja) * 2012-08-31 2016-03-30 株式会社日立製作所 磁気抵抗センサ、グラジオメータ
CN105338895B (zh) * 2013-03-14 2020-10-23 捷锐士阿希迈公司(以奥林巴斯美国外科技术名义) 传感器电路
US9389281B2 (en) * 2013-03-21 2016-07-12 Vale S.A. Magnetic compensation circuit and method for compensating the output of a magnetic sensor, responding to changes in a first magnetic field
FI20135421A7 (fi) 2013-04-24 2014-10-25 Tellabs Oy Menetelmä sähkölaitteen ohjaamiseksi ja sähkölaite
WO2015030872A1 (en) 2013-08-30 2015-03-05 Honeywell International Inc. Stray magnetic field rejection for in-hole current-measurement systems
CN104682785B (zh) * 2013-11-29 2017-03-01 晶致半导体股份有限公司 具有校正功能的驱动芯片及其应用的马达驱动系统
FR3015688B1 (fr) * 2013-12-20 2016-01-08 Commissariat Energie Atomique Capteur multi-sensoriel
TWI576679B (zh) * 2014-06-11 2017-04-01 宇能電科技股份有限公司 偏移電壓自動補償系統
EP2955492B1 (en) * 2014-06-13 2017-05-10 Nxp B.V. Sensor system with a full bridge configuration of four resistive sensing elements
DE102014011831A1 (de) * 2014-08-08 2016-02-11 ChenYang Technologies GmbH & Co. KG Nullpunktoffset-Reduzierung bei Magnetfeldsensoren
US10107873B2 (en) * 2016-03-10 2018-10-23 Allegro Microsystems, Llc Electronic circuit for compensating a sensitivity drift of a hall effect element due to stress
WO2018145003A1 (en) * 2017-02-06 2018-08-09 Boston Scientific Scimed Inc. Electromagnetic navigation system with magneto-resistive sensors and application-specific integrated circuits
CN107990992B (zh) * 2017-11-27 2019-10-11 电子科技大学 高精度温度传感器及精度调节方法
CN108594920B (zh) * 2018-05-17 2020-05-22 美新半导体（无锡）有限公司 一种磁传感器及其中的设置/重置电路
US10799147B2 (en) * 2018-06-26 2020-10-13 Biosense Webster (Israel) Ltd. Magnetic pickup cancellation by compensation leads
CN108880547A (zh) * 2018-08-21 2018-11-23 中国船舶重工集团公司第七0四研究所 基于电流注入的电桥电路零位偏置在线校正方法
CN111610473B (zh) 2020-05-29 2022-11-18 江苏多维科技有限公司 一种磁电阻弛张振荡器式磁力计
US11652492B2 (en) 2020-12-30 2023-05-16 Analog Devices International Unlimited Company Signal chain with embedded power management
CN113421730B (zh) * 2021-06-18 2023-03-31 深圳市谷粒科技有限公司 一种自适应满行程检测电磁感应式电位器
US11942960B2 (en) 2022-01-31 2024-03-26 Analog Devices, Inc. ADC with precision reference power saving mode
CN114732922B (zh) * 2022-02-18 2024-05-03 深圳瑞格泰科医疗科技有限公司 一种可检测灯管磁场偏移的无磁紫外线消毒系统
CN116859302B (zh) * 2023-09-05 2023-11-03 中国计量科学研究院 一种高精度磁矩测量系统及方法
CN117270061B (zh) * 2023-11-17 2024-01-30 江苏多维科技有限公司 一种铁磁材料检测方法及检测设备
DE102024137835A1 (de) * 2024-12-16 2026-06-18 Robert Bosch Gesellschaft mit beschränkter Haftung Magnetsensorvorrichtung und Verfahren zum Betreiben einer Magnetsensorvorrichtung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706138A (en) * 1986-04-14 1987-11-10 International Business Machines Corporation Amplification of signals produced by a magnetic sensor
US4847584A (en) 1988-10-14 1989-07-11 Honeywell Inc. Magnetoresistive magnetic sensor
US5247278A (en) * 1991-11-26 1993-09-21 Honeywell Inc. Magnetic field sensing device
US6445171B2 (en) * 1999-10-29 2002-09-03 Honeywell Inc. Closed-loop magnetoresistive current sensor system having active offset nulling
CA2507819C (en) 2002-11-29 2010-09-14 Yamaha Corporation Magnetic sensor, and method of compensating temperature-dependent characteristic of magnetic sensor
WO2005054887A1 (en) 2003-12-04 2005-06-16 Philips Intellectual Property & Standards Gmbh Magnetic-field-sensitive sensor arrangement
US7057173B2 (en) * 2004-01-05 2006-06-06 Laser Technology, Inc. Magnetoresistive (MR) sensor temperature compensation and magnetic cross-term reduction techniques utilizing selective set and reset gain measurements
EP1637898A1 (en) 2004-09-16 2006-03-22 Liaisons Electroniques-Mecaniques Lem S.A. Continuously calibrated magnetic field sensor
US7504824B2 (en) * 2004-10-21 2009-03-17 International Business Machines Corporation Magnetic sensor with offset magnetic field
CN100414255C (zh) * 2004-12-16 2008-08-27 阿尔卑斯电气株式会社 角度检测传感器的补偿值计算方法以及使用其的角度检测传感器
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
US8613695B2 (en) 2008-07-10 2013-12-24 Applied Magnetics, Llc Highly precise and low level signal-generating drivers, systems, and methods of use
US8335872B2 (en) 2008-12-31 2012-12-18 Ibiquity Digital Corporation Systems and methods for fast seek and scan functions in a digital radio broadcast receiver
IT1402178B1 (it) * 2010-09-09 2013-08-28 St Microelectronics Srl Circuito di lettura a compensazione automatica dell'offset per un sensore di campo magnetico e relativo metodo di lettura a compensazione automatica dell'offset
US8717009B2 (en) 2010-10-06 2014-05-06 Apple Inc. Magnetometer calibration
US10473731B2 (en) 2010-11-26 2019-11-12 Stmicroelectronics S.R.L. Magnetic sensor reading device, system and method

Also Published As

Publication number Publication date
ITTO20100740A1 (it) 2012-03-10
CN202748469U (zh) 2013-02-20
US20120166122A1 (en) 2012-06-28
CN102401884B (zh) 2016-08-10
CN102401884A (zh) 2012-04-04
US10001530B2 (en) 2018-06-19

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