FR2744806B1 - Detecteur de champ magnetique et procede de detection - Google Patents

Detecteur de champ magnetique et procede de detection

Info

Publication number
FR2744806B1
FR2744806B1 FR9701550A FR9701550A FR2744806B1 FR 2744806 B1 FR2744806 B1 FR 2744806B1 FR 9701550 A FR9701550 A FR 9701550A FR 9701550 A FR9701550 A FR 9701550A FR 2744806 B1 FR2744806 B1 FR 2744806B1
Authority
FR
France
Prior art keywords
magnetic field
detection method
field detector
detector
detection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
FR9701550A
Other languages
English (en)
Other versions
FR2744806A1 (fr
Inventor
Ravi Vig
Teri Tu
Ii Paul W Latham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Allegro Microsystems Inc
Original Assignee
Allegro Microsystems Inc
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 Allegro Microsystems Inc filed Critical Allegro Microsystems Inc
Publication of FR2744806A1 publication Critical patent/FR2744806A1/fr
Application granted granted Critical
Publication of FR2744806B1 publication Critical patent/FR2744806B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01R33/07—Hall effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0233—Bistable circuits
    • H03K3/02337—Bistables with hysteresis, e.g. Schmitt trigger
FR9701550A 1996-02-12 1997-02-11 Detecteur de champ magnetique et procede de detection Expired - Lifetime FR2744806B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/600,380 US5619137A (en) 1996-02-12 1996-02-12 Chopped low power magnetic-field detector with hysteresis memory

Publications (2)

Publication Number Publication Date
FR2744806A1 FR2744806A1 (fr) 1997-08-14
FR2744806B1 true FR2744806B1 (fr) 2001-10-05

Family

ID=24403361

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9701550A Expired - Lifetime FR2744806B1 (fr) 1996-02-12 1997-02-11 Detecteur de champ magnetique et procede de detection

Country Status (3)

Country Link
US (1) US5619137A (fr)
DE (1) DE19704782C2 (fr)
FR (1) FR2744806B1 (fr)

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DE10117384B4 (de) * 2001-04-06 2004-10-07 Infineon Technologies Ag Sensorvorrichtung
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US8786279B2 (en) 2011-02-25 2014-07-22 Allegro Microsystems, Llc Circuit and method for processing signals generated by a plurality of sensors
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US8669759B2 (en) * 2011-03-31 2014-03-11 Infineon Technologies Ag Omnipolar magnetic switches
US8729890B2 (en) * 2011-04-12 2014-05-20 Allegro Microsystems, Llc Magnetic angle and rotation speed sensor with continuous and discontinuous modes of operation based on rotation speed of a target object
US8860410B2 (en) 2011-05-23 2014-10-14 Allegro Microsystems, Llc Circuits and methods for processing a signal generated by a plurality of measuring devices
US8890518B2 (en) 2011-06-08 2014-11-18 Allegro Microsystems, Llc Arrangements for self-testing a circular vertical hall (CVH) sensing element and/or for self-testing a magnetic field sensor that uses a circular vertical hall (CVH) sensing element
US8793085B2 (en) 2011-08-19 2014-07-29 Allegro Microsystems, Llc Circuits and methods for automatically adjusting a magnetic field sensor in accordance with a speed of rotation sensed by the magnetic field sensor
US8922206B2 (en) 2011-09-07 2014-12-30 Allegro Microsystems, Llc Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element
TWI442074B (zh) * 2011-09-23 2014-06-21 Acer Inc 電子裝置與防呆方法
US9285438B2 (en) 2011-09-28 2016-03-15 Allegro Microsystems, Llc Circuits and methods for processing signals generated by a plurality of magnetic field sensing elements
US9046383B2 (en) 2012-01-09 2015-06-02 Allegro Microsystems, Llc Systems and methods that use magnetic field sensors to identify positions of a gear shift lever
US9182456B2 (en) 2012-03-06 2015-11-10 Allegro Microsystems, Llc Magnetic field sensor for sensing rotation of an object
US10215550B2 (en) 2012-05-01 2019-02-26 Allegro Microsystems, Llc Methods and apparatus for magnetic sensors having highly uniform magnetic fields
US9417295B2 (en) 2012-12-21 2016-08-16 Allegro Microsystems, Llc Circuits and methods for processing signals generated by a circular vertical hall (CVH) sensing element in the presence of a multi-pole magnet
US8749005B1 (en) 2012-12-21 2014-06-10 Allegro Microsystems, Llc Magnetic field sensor and method of fabricating a magnetic field sensor having a plurality of vertical hall elements arranged in at least a portion of a polygonal shape
US9606190B2 (en) 2012-12-21 2017-03-28 Allegro Microsystems, Llc Magnetic field sensor arrangements and associated methods
US9548443B2 (en) 2013-01-29 2017-01-17 Allegro Microsystems, Llc Vertical Hall Effect element with improved sensitivity
WO2014124274A1 (fr) 2013-02-08 2014-08-14 Techtronic Floor Care Technology Limited Système de nettoyage sans fil alimenté par batterie
US9377285B2 (en) 2013-02-13 2016-06-28 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide varying current spinning phase sequences of a magnetic field sensing element
US9389060B2 (en) 2013-02-13 2016-07-12 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide an angle error correction module
US9099638B2 (en) 2013-03-15 2015-08-04 Allegro Microsystems, Llc Vertical hall effect element with structures to improve sensitivity
US9400164B2 (en) 2013-07-22 2016-07-26 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide an angle correction module
US9312473B2 (en) 2013-09-30 2016-04-12 Allegro Microsystems, Llc Vertical hall effect sensor
US9341682B2 (en) * 2013-10-29 2016-05-17 Infineon Technologies Ag Systems and methods having omnipolar comparators for magnetic switches
US10120042B2 (en) 2013-12-23 2018-11-06 Allegro Microsystems, Llc Magnetic field sensor and related techniques that inject a synthesized error correction signal into a signal channel to result in reduced error
US9574867B2 (en) 2013-12-23 2017-02-21 Allegro Microsystems, Llc Magnetic field sensor and related techniques that inject an error correction signal into a signal channel to result in reduced error
US9547048B2 (en) 2014-01-14 2017-01-17 Allegro Micosystems, LLC Circuit and method for reducing an offset component of a plurality of vertical hall elements arranged in a circle
US9753097B2 (en) 2014-05-05 2017-09-05 Allegro Microsystems, Llc Magnetic field sensors and associated methods with reduced offset and improved accuracy
US9448288B2 (en) 2014-05-20 2016-09-20 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy resulting from a digital potentiometer
US9823092B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor providing a movement detector
US9638766B2 (en) 2014-11-24 2017-05-02 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy resulting from a variable potentiometer and a gain circuit
US9684042B2 (en) 2015-02-27 2017-06-20 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy and method of obtaining improved accuracy with a magnetic field sensor
DE102015204903A1 (de) * 2015-03-18 2016-09-22 Volkswagen Aktiengesellschaft Kraftfahrzeug-Bordnetz und Verfahren zur Messung eines Stromes in einer Leitung in einem Bordnetz eines Kraftfahrzeugs
US9523742B2 (en) 2015-04-27 2016-12-20 Allegro Microsystems, Llc Circuits and methods for modulating current in circuits comprising sensing elements
US11163022B2 (en) 2015-06-12 2021-11-02 Allegro Microsystems, Llc Magnetic field sensor for angle detection with a phase-locked loop
CN204915554U (zh) * 2015-09-18 2015-12-30 泰科电子(上海)有限公司 感应电路、混合驱动电路及感应器组件
DE102015015350A1 (de) 2015-12-01 2017-06-01 Tdk-Micronas Gmbh Magnetfelddetektorschaltkreis und Verfahren zum Betreiben eines Magnetfelddetektorschaltkreises
DE102015225043A1 (de) 2015-12-14 2017-06-14 Robert Bosch Gmbh Schweißgerät mit Erfassungsvorrichtung zur Erfassung magnetischer Felder
JP6591953B2 (ja) * 2015-12-24 2019-10-16 旭化成エレクトロニクス株式会社 磁気センサ装置および電流センサ装置
US9739847B1 (en) 2016-02-01 2017-08-22 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with signal processing
US10481220B2 (en) 2016-02-01 2019-11-19 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with signal processing and arctangent function
US9739848B1 (en) 2016-02-01 2017-08-22 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with sliding integration
US10385964B2 (en) 2016-06-08 2019-08-20 Allegro Microsystems, Llc Enhanced neutral gear sensor
US10585147B2 (en) 2016-06-14 2020-03-10 Allegro Microsystems, Llc Magnetic field sensor having error correction
US10739164B2 (en) 2017-01-27 2020-08-11 Allegro Microsystems, Llc Circuit for detecting motion of an object
US10495701B2 (en) 2017-03-02 2019-12-03 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with DC offset removal
US10804896B2 (en) * 2017-03-06 2020-10-13 Shenzhen Mojay Semiconductor Limited Proximity magnetic induction switch control chip and its control method
CN106767992B (zh) * 2017-03-10 2019-09-20 上海麦歌恩微电子股份有限公司 开关型霍尔传感器斩波延迟测量方法及系统
US10481219B2 (en) 2017-09-11 2019-11-19 Allegro Microsystems, Llc Magnetic field sensor with feedback loop for test signal processing
US10444299B2 (en) 2017-09-11 2019-10-15 Allegro Microsystems, Llc Magnetic field sensor's front end and associated mixed signal method for removing chopper's related ripple
US10823586B2 (en) 2018-12-26 2020-11-03 Allegro Microsystems, Llc Magnetic field sensor having unequally spaced magnetic field sensing elements
US11237020B2 (en) 2019-11-14 2022-02-01 Allegro Microsystems, Llc Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet
US11280637B2 (en) 2019-11-14 2022-03-22 Allegro Microsystems, Llc High performance magnetic angle sensor
US11333718B2 (en) 2020-04-15 2022-05-17 Allegro Microsystems, Llc Sensors having dynamic phase compensation
CN112087221B (zh) * 2020-09-18 2022-10-18 郑州轻工业大学 一种采用磁场触发的磁电数据触发器及其实现方法
US11802922B2 (en) 2021-01-13 2023-10-31 Allegro Microsystems, Llc Circuit for reducing an offset component of a plurality of vertical hall elements arranged in one or more circles
US11953565B2 (en) 2021-03-23 2024-04-09 Allegro Microsystems, Llc Electrical offset compensating in a bridge using more than four magnetoresistance elements
US11609283B2 (en) 2021-03-23 2023-03-21 Allegro Microsystems, Llc Electrical offset compensating in a magnetoresistance bridge
US11473935B1 (en) 2021-04-16 2022-10-18 Allegro Microsystems, Llc System and related techniques that provide an angle sensor for sensing an angle of rotation of a ferromagnetic screw
CN113485510A (zh) * 2021-07-09 2021-10-08 绍兴光大芯业微电子有限公司 实现垂直霍尔传感器分时工作的系统

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Also Published As

Publication number Publication date
DE19704782A1 (de) 1997-10-30
FR2744806A1 (fr) 1997-08-14
US5619137A (en) 1997-04-08
DE19704782C2 (de) 2003-12-11

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Legal Events

Date Code Title Description
CD Change of name or company name

Owner name: ALLEGRO MICROSYSTEMS, LLC, US

Effective date: 20130821

CJ Change in legal form

Effective date: 20130821

PLFP Fee payment

Year of fee payment: 20