CH481384A - Convertisseur courant-fréquence - Google Patents

Convertisseur courant-fréquence

Info

Publication number
CH481384A
CH481384A CH39768A CH39768A CH481384A CH 481384 A CH481384 A CH 481384A CH 39768 A CH39768 A CH 39768A CH 39768 A CH39768 A CH 39768A CH 481384 A CH481384 A CH 481384A
Authority
CH
Switzerland
Prior art keywords
current
frequency converter
converter
frequency
Prior art date
Application number
CH39768A
Other languages
English (en)
French (fr)
Inventor
Jouve Philippe
Original Assignee
Aquitaine Petrole
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 Aquitaine Petrole filed Critical Aquitaine Petrole
Publication of CH481384A publication Critical patent/CH481384A/fr

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)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (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)
CH39768A 1967-02-16 1968-01-11 Convertisseur courant-fréquence CH481384A (fr)

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
CH481384A true CH481384A (fr) 1969-11-15

Family

ID=8625414

Family Applications (1)

Application Number Title Priority Date Filing Date
CH39768A CH481384A (fr) 1967-02-16 1968-01-11 Convertisseur courant-fréquence

Country Status (8)

Country Link
US (1) US3539931A (US07906212-20110315-C00002.png)
BE (1) BE710832A (US07906212-20110315-C00002.png)
CH (1) CH481384A (US07906212-20110315-C00002.png)
DE (1) DE1537999A1 (US07906212-20110315-C00002.png)
FR (1) FR1518948A (US07906212-20110315-C00002.png)
GB (1) GB1214167A (US07906212-20110315-C00002.png)
LU (1) LU55337A1 (US07906212-20110315-C00002.png)
NL (1) NL6801640A (US07906212-20110315-C00002.png)

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
NL6801640A (US07906212-20110315-C00002.png) 1968-08-19
BE710832A (US07906212-20110315-C00002.png) 1968-06-17
US3539931A (en) 1970-11-10
FR1518948A (fr) 1968-03-29
GB1214167A (en) 1970-12-02
DE1537999A1 (de) 1970-07-23
LU55337A1 (US07906212-20110315-C00002.png) 1968-04-09

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Legal Events

Date Code Title Description
PL Patent ceased