FR1518948A - Convertisseur courant fréquence extracteur de racine carrée - Google Patents

Convertisseur courant fréquence extracteur de racine carrée

Info

Publication number
FR1518948A
FR1518948A FR95258A FR95258A FR1518948A FR 1518948 A FR1518948 A FR 1518948A FR 95258 A FR95258 A FR 95258A FR 95258 A FR95258 A FR 95258A FR 1518948 A FR1518948 A FR 1518948A
Authority
FR
France
Prior art keywords
frequency converter
square root
current frequency
root extractor
extractor current
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
FR95258A
Other languages
English (en)
Inventor
Philippe Jouve
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine SA
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 Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Priority to FR95258A priority Critical patent/FR1518948A/fr
Priority to CH39768A priority patent/CH481384A/fr
Priority to LU55337D priority patent/LU55337A1/xx
Priority to GB4272/68A priority patent/GB1214167A/en
Priority to DE19681537999 priority patent/DE1537999A1/de
Priority to NL6801640A priority patent/NL6801640A/xx
Priority to US705080A priority patent/US3539931A/en
Priority to BE710832D priority patent/BE710832A/xx
Application granted granted Critical
Publication of FR1518948A publication Critical patent/FR1518948A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/04—Generating pulses having essentially a finite slope or stepped portions having parabolic shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Analogue/Digital Conversion (AREA)
FR95258A 1967-02-16 1967-02-16 Convertisseur courant fréquence extracteur de racine carrée Expired FR1518948A (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR95258A FR1518948A (fr) 1967-02-16 1967-02-16 Convertisseur courant fréquence extracteur de racine carrée
CH39768A CH481384A (fr) 1967-02-16 1968-01-11 Convertisseur courant-fréquence
LU55337D LU55337A1 (fr) 1967-02-16 1968-01-23
GB4272/68A GB1214167A (en) 1967-02-16 1968-01-26 Square-rooting current-frequencing converter
DE19681537999 DE1537999A1 (de) 1967-02-16 1968-01-30 Strom-Frequenzwandler
NL6801640A NL6801640A (fr) 1967-02-16 1968-02-06
US705080A US3539931A (en) 1967-02-16 1968-02-13 Current-frequency converter wherein output frequency is proportional to the square root of the input current
BE710832D BE710832A (fr) 1967-02-16 1968-02-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR95258A FR1518948A (fr) 1967-02-16 1967-02-16 Convertisseur courant fréquence extracteur de racine carrée

Publications (1)

Publication Number Publication Date
FR1518948A true FR1518948A (fr) 1968-03-29

Family

ID=8625414

Family Applications (1)

Application Number Title Priority Date Filing Date
FR95258A Expired FR1518948A (fr) 1967-02-16 1967-02-16 Convertisseur courant fréquence extracteur de racine carrée

Country Status (8)

Country Link
US (1) US3539931A (fr)
BE (1) BE710832A (fr)
CH (1) CH481384A (fr)
DE (1) DE1537999A1 (fr)
FR (1) FR1518948A (fr)
GB (1) GB1214167A (fr)
LU (1) LU55337A1 (fr)
NL (1) NL6801640A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445053A (en) * 1977-06-16 1984-04-24 Dbx, Inc. Square law charger
DE3813413A1 (de) * 1988-04-21 1989-11-09 Telefunken Electronic Gmbh Quadrierschaltung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252099A (en) * 1963-05-27 1966-05-17 Ibm Waveform shaping system for slimming filter control and symmetrizing
US3328569A (en) * 1963-11-14 1967-06-27 Bailey Meter Co Square root extracting network
US3231766A (en) * 1965-01-21 1966-01-25 Barnes Eng Co Square root output circuit utilizing a voltage sensitive capacitive diode

Also Published As

Publication number Publication date
DE1537999A1 (de) 1970-07-23
CH481384A (fr) 1969-11-15
GB1214167A (en) 1970-12-02
BE710832A (fr) 1968-06-17
US3539931A (en) 1970-11-10
LU55337A1 (fr) 1968-04-09
NL6801640A (fr) 1968-08-19

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