DE1537999A1 - Strom-Frequenzwandler - Google Patents

Strom-Frequenzwandler

Info

Publication number
DE1537999A1
DE1537999A1 DE19681537999 DE1537999A DE1537999A1 DE 1537999 A1 DE1537999 A1 DE 1537999A1 DE 19681537999 DE19681537999 DE 19681537999 DE 1537999 A DE1537999 A DE 1537999A DE 1537999 A1 DE1537999 A1 DE 1537999A1
Authority
DE
Germany
Prior art keywords
capacitor
current
frequency converter
differential amplifier
resistor
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
DE19681537999
Other languages
German (de)
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
Publication of DE1537999A1 publication Critical patent/DE1537999A1/de
Pending 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 OR CALCULATING; 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)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE19681537999 1967-02-16 1968-01-30 Strom-Frequenzwandler Pending DE1537999A1 (de)

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
DE1537999A1 true DE1537999A1 (de) 1970-07-23

Family

ID=8625414

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681537999 Pending DE1537999A1 (de) 1967-02-16 1968-01-30 Strom-Frequenzwandler

Country Status (8)

Country Link
US (1) US3539931A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE710832A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH481384A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1537999A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1518948A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1214167A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU55337A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6801640A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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
GB1214167A (en) 1970-12-02
NL6801640A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-08-19
BE710832A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-06-17
CH481384A (fr) 1969-11-15
FR1518948A (fr) 1968-03-29
LU55337A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-04-09
US3539931A (en) 1970-11-10

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