ES8306835A1 - Circuito de deteccion de estado de senal con nivel de umbralautoajustable - Google Patents

Circuito de deteccion de estado de senal con nivel de umbralautoajustable

Info

Publication number
ES8306835A1
ES8306835A1 ES506131A ES506131A ES8306835A1 ES 8306835 A1 ES8306835 A1 ES 8306835A1 ES 506131 A ES506131 A ES 506131A ES 506131 A ES506131 A ES 506131A ES 8306835 A1 ES8306835 A1 ES 8306835A1
Authority
ES
Spain
Prior art keywords
modulated carrier
circuit
sensor
self
detection circuit
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
Application number
ES506131A
Other languages
English (en)
Other versions
ES506131A0 (es
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of ES506131A0 publication Critical patent/ES506131A0/es
Publication of ES8306835A1 publication Critical patent/ES8306835A1/es
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/07—Hall-effect pick-up devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

CIRCUITO DE DETECCION DE ESTADO DE SEÑAL CON NIVEL DE UMBRAL AUTOAJUSTABLE. COMPRENDE: UN OSCILADOR (22) PARA PRODUCIR UNA PRIMERA SEÑAL DE CORRIENTE ALTERNA A UNA PRIMERA FRECUENCIA; UN DISPOSITIVO PARA MODULAR CICLICAMENTE EN AMPLITUD DICHA PRIMERA SEÑAL DE CORRIENTE ALTERNA; UN DISPOSITIVO PARA DEMODULAR DICHA PRIMERA SEÑAL DE CORRIENTE ALTERNA MODULADA CON EL FIN DE PRODUCIR UNA SEGUNDA SEÑAL VARIABLE CICLICAMENTE; DISPOSITIVOS PARA DETECTAR LOS VALORES DE CRESTA MAXIMO Y MINIMO DE DICHA SEGUNDA SEÑAL; UN DISPOSITIVO PARA GENERAR UNA SEÑAL DE NIVEL DE UMBRAL DE CORRIENTE CONTINUA CUYO NIVEL DE TENSION PRESENTA UNA RELACION PREDETERMINADA CON AMBOS VALORES DE CRESTA; Y UN DISPOSITIVO PARA GENERAR UNA SEÑAL DE SALIDA ELECTRICA.
ES506131A 1980-10-20 1981-10-08 Circuito de deteccion de estado de senal con nivel de umbralautoajustable Expired ES8306835A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/198,890 US4367721A (en) 1979-08-08 1980-10-20 Signal detection circuit with self-adjusting threshold having modulated carrier input

Publications (2)

Publication Number Publication Date
ES506131A0 ES506131A0 (es) 1983-06-01
ES8306835A1 true ES8306835A1 (es) 1983-06-01

Family

ID=22735298

Family Applications (1)

Application Number Title Priority Date Filing Date
ES506131A Expired ES8306835A1 (es) 1980-10-20 1981-10-08 Circuito de deteccion de estado de senal con nivel de umbralautoajustable

Country Status (7)

Country Link
US (1) US4367721A (es)
EP (1) EP0050500B1 (es)
JP (1) JPS5799021A (es)
AU (1) AU548118B2 (es)
CA (1) CA1165383A (es)
DE (1) DE3167864D1 (es)
ES (1) ES8306835A1 (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127220C2 (de) * 1981-07-10 1983-04-14 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum Erzeugen einer drehzahlabhängigen Signalfolge
DE3137181A1 (de) * 1981-09-18 1983-03-31 Robert Bosch Gmbh, 7000 Stuttgart "zuendverteiler an einer brennkraftmaschine"
KR950003338B1 (ko) * 1989-05-15 1995-04-10 미쓰비시덴키 가부시키가이샤 내연기관 점화장치
US5446375A (en) * 1992-10-16 1995-08-29 At&T Global Information Solutions Company Reluctance sensor having variable threshold detection circuit
US5444369A (en) * 1993-02-18 1995-08-22 Kearney-National, Inc. Magnetic rotational position sensor with improved output linearity
US5650719A (en) * 1996-01-17 1997-07-22 Allegro Microsystems, Inc. Detection of passing magnetic articles while periodically adapting detection thresholds to changing amplitudes of the magnetic field
US5917320A (en) * 1996-01-17 1999-06-29 Allegro Microsystems, Inc. Detection of passing magnetic articles while periodically adapting detection threshold
US6297627B1 (en) 1996-01-17 2001-10-02 Allegro Microsystems, Inc. Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control
US6242908B1 (en) 1996-01-17 2001-06-05 Allegro Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US6525531B2 (en) 1996-01-17 2003-02-25 Allegro, Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US6285958B1 (en) 1998-02-12 2001-09-04 American Electronic Components, Inc. Electronic circuit for automatic compensation of a sensor output signal
KR100411057B1 (ko) * 2000-12-27 2003-12-18 현대자동차주식회사 주파수 복조기법을 이용한 기어상태 진단방법
US7365530B2 (en) * 2004-04-08 2008-04-29 Allegro Microsystems, Inc. Method and apparatus for vibration detection
US7253614B2 (en) * 2005-03-21 2007-08-07 Allegro Microsystems, Inc. Proximity detector having a sequential flow state machine
US7362094B2 (en) * 2006-01-17 2008-04-22 Allegro Microsystems, Inc. Methods and apparatus for magnetic article detection
US8598867B2 (en) 2010-06-04 2013-12-03 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a motion detector
US20160277017A1 (en) * 2011-09-13 2016-09-22 Fsp Technology Inc. Snubber circuit
US9520871B2 (en) 2012-01-05 2016-12-13 Allegro Microsystems, Llc Methods and apparatus for supply voltage transient protection for maintaining a state of a sensor output signal
US9329057B2 (en) 2012-05-31 2016-05-03 Allegro Microsystems, Llc Gear tooth sensor with peak and threshold detectors
US8723512B1 (en) 2012-11-26 2014-05-13 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal
US9476899B2 (en) 2013-08-30 2016-10-25 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a motion detector in accordance with a least common multiple of a set of possible quantities of features upon a target
US9778326B2 (en) 2014-03-11 2017-10-03 Allegro Microsystems, Llc Circuits and methods for limiting a smallest separation of thresholds in a magnetic field sensor
US11125590B2 (en) 2019-05-07 2021-09-21 Allegro Microsystems, Llc System and method for vibration detection with direction change response immunity using a magnetic field sensor
US11029176B2 (en) 2019-05-07 2021-06-08 Allegro Microsystems, Llc System and method for vibration detection with no loss of position information using a magnetic field sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912943A (en) * 1974-08-09 1975-10-14 Ibm Video thresholder
US3923030A (en) * 1974-09-19 1975-12-02 Frank Kenneth Luteran Phase sensitive ignition timing system
US4014308A (en) * 1974-10-03 1977-03-29 Delta Products, Inc. Ignition system and apparatus and method for generating timing signals therefor
DE2549586C3 (de) * 1975-11-05 1979-03-29 Robert Bosch Gmbh, 7000 Stuttgart Zündeinrichtung für Brennkraftmaschinen
JPS5334029A (en) * 1976-09-13 1978-03-30 Toshiba Corp Contactless ignition system
US4128091A (en) * 1976-11-18 1978-12-05 Chrysler Corporation Hall effect electronic ignition controller with programmed dwell and automatic shut-down timer circuits
US4163160A (en) * 1978-03-22 1979-07-31 Fairchild Camera And Instrument Corporation Input stage for automotive ignition control circuit
US4293814A (en) * 1979-08-08 1981-10-06 Ford Motor Company Crankshaft position sensor circuitry for providing stable cyclical output signals without regard to peak to peak variations in sensor signals

Also Published As

Publication number Publication date
EP0050500A3 (en) 1982-05-26
EP0050500B1 (en) 1984-12-19
DE3167864D1 (en) 1985-01-31
EP0050500A2 (en) 1982-04-28
ES506131A0 (es) 1983-06-01
US4367721A (en) 1983-01-11
CA1165383A (en) 1984-04-10
AU7657981A (en) 1982-04-29
AU548118B2 (en) 1985-11-21
JPS5799021A (en) 1982-06-19

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