FR2450000A1 - CIRCUIT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE DIFFERENCE BETWEEN TWO CURRENT SIGNALS - Google Patents

CIRCUIT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE DIFFERENCE BETWEEN TWO CURRENT SIGNALS

Info

Publication number
FR2450000A1
FR2450000A1 FR8003589A FR8003589A FR2450000A1 FR 2450000 A1 FR2450000 A1 FR 2450000A1 FR 8003589 A FR8003589 A FR 8003589A FR 8003589 A FR8003589 A FR 8003589A FR 2450000 A1 FR2450000 A1 FR 2450000A1
Authority
FR
France
Prior art keywords
difference
providing
circuit
signal proportional
current signals
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.)
Pending
Application number
FR8003589A
Other languages
French (fr)
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2450000A1 publication Critical patent/FR2450000A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Feedback Control In General (AREA)
  • Networks Using Active Elements (AREA)

Abstract

L'INVENTION CONCERNE UN CIRCUIT DESTINE A FOURNIR UN SIGNAL ELECTRIQUE PROPORTIONNEL A LA DIFFERENCE DE DEUX SIGNAUX DE COURANT. ELLE EST CARACTERISEE PAR LE FAIT QU'IL COMPREND DEUX AMPLIFICATEURS D'ENTREE 17, 18, JOUANT LE ROLE DE CONVERTISSEURS COURANT-TENSION ET RECEVANT CHACUN L'UN DE CES SIGNAUX, DES MOYENS APPLIQUANT UN SIGNAL DE REFERENCE AUX DEUX AMPLIFICATEURS D'ENTREE, COMPRENANT UN AUTRE AMPLIFICATEUR 21 FAISANT VARIER LE SIGNAL DE REFERENCE EN FONCTION DE LA SOMME DES SIGNAUX EMIS PAR LES AMPLIFICATEURS D'ENTREE, TEL QUE LA SOMME TENDE VERS ZERO ET UN AMPLIFICATEUR DIFFERENTIEL 27 DONT LES ENTREES SONT RELIEES AUX SORTIES DE CES DEUX AMPLIFICATEURS D'ENTREE. L'INVENTION S'APPLIQUE AUX VEHICULES ROUTIERS.THE INVENTION RELATES TO A CIRCUIT FOR PROVIDING AN ELECTRIC SIGNAL PROPORTIONAL TO THE DIFFERENCE OF TWO CURRENT SIGNALS. IT IS CHARACTERIZED BY THE FACT THAT IT INCLUDES TWO INPUT AMPLIFIERS 17, 18, PLAYING THE ROLE OF CURRENT-VOLTAGE CONVERTERS AND EACH RECEIVING ONE OF THESE SIGNALS, MEANS APPLYING A REFERENCE SIGNAL TO THE TWO INPUT AMPLIFIERS , INCLUDING ANOTHER AMPLIFIER 21 VARIING THE REFERENCE SIGNAL ACCORDING TO THE SUM OF THE SIGNALS EMITTED BY THE INPUT AMPLIFIERS, SUCH AS THE SUM TENDS TO ZERO AND A DIFFERENTIAL AMPLIFIER 27 WHOSE INPUTS ARE CONNECTED TO THE TWO AMPLIFIERS OF THESE OUTPUTS ENTRY. THE INVENTION APPLIES TO ROAD VEHICLES.

FR8003589A 1979-02-24 1980-02-19 CIRCUIT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE DIFFERENCE BETWEEN TWO CURRENT SIGNALS Pending FR2450000A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7906601 1979-02-24

Publications (1)

Publication Number Publication Date
FR2450000A1 true FR2450000A1 (en) 1980-09-19

Family

ID=10503410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003589A Pending FR2450000A1 (en) 1979-02-24 1980-02-19 CIRCUIT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE DIFFERENCE BETWEEN TWO CURRENT SIGNALS

Country Status (4)

Country Link
JP (1) JPS55117317A (en)
DE (1) DE3006396A1 (en)
FR (1) FR2450000A1 (en)
IT (1) IT1140640B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353111A (en) * 1963-04-01 1967-11-14 Martin Marietta Corp Amplifier circuits for differential amplifiers
US3516005A (en) * 1968-05-06 1970-06-02 Teledyne Geotech Amplifier for enhancing differential input signals
FR2119871A1 (en) * 1970-12-30 1972-08-11 Anvar
DE2116611A1 (en) * 1971-03-31 1972-10-05 Licentia Gmbh Circuit for compensation of the offset current
US3870968A (en) * 1971-01-15 1975-03-11 Monroe Electronics Inc Electrometer voltage follower having MOSFET input stage
US4052964A (en) * 1975-02-12 1977-10-11 The Lucas Electrical Company Limited Corona discharge fluid flow transducers and fuel injection systems incorporating such transducers
FR2430001A1 (en) * 1978-06-26 1980-01-25 Philips Nv IONIZATION FLOW METER

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353111A (en) * 1963-04-01 1967-11-14 Martin Marietta Corp Amplifier circuits for differential amplifiers
US3516005A (en) * 1968-05-06 1970-06-02 Teledyne Geotech Amplifier for enhancing differential input signals
FR2119871A1 (en) * 1970-12-30 1972-08-11 Anvar
US3870968A (en) * 1971-01-15 1975-03-11 Monroe Electronics Inc Electrometer voltage follower having MOSFET input stage
DE2116611A1 (en) * 1971-03-31 1972-10-05 Licentia Gmbh Circuit for compensation of the offset current
US4052964A (en) * 1975-02-12 1977-10-11 The Lucas Electrical Company Limited Corona discharge fluid flow transducers and fuel injection systems incorporating such transducers
FR2430001A1 (en) * 1978-06-26 1980-01-25 Philips Nv IONIZATION FLOW METER

Also Published As

Publication number Publication date
JPS55117317A (en) 1980-09-09
IT8020012A0 (en) 1980-02-19
IT1140640B (en) 1986-10-01
IT8020012A1 (en) 1981-08-19
DE3006396A1 (en) 1980-09-25

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