ZA954456B - Current measurement circuit comprising a mutually coupled transformer and an integration circuit - Google Patents

Current measurement circuit comprising a mutually coupled transformer and an integration circuit

Info

Publication number
ZA954456B
ZA954456B ZA954456A ZA954456A ZA954456B ZA 954456 B ZA954456 B ZA 954456B ZA 954456 A ZA954456 A ZA 954456A ZA 954456 A ZA954456 A ZA 954456A ZA 954456 B ZA954456 B ZA 954456B
Authority
ZA
South Africa
Prior art keywords
circuit
current measurement
integration circuit
mutually coupled
coupled transformer
Prior art date
Application number
ZA954456A
Other languages
English (en)
Inventor
Michel Dubin
Original Assignee
Schlumberger Ind 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 Schlumberger Ind Sa filed Critical Schlumberger Ind Sa
Publication of ZA954456B publication Critical patent/ZA954456B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • 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
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/201—Increasing resolution using an n bit system to obtain n + m bits by dithering

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
ZA954456A 1994-06-01 1995-05-31 Current measurement circuit comprising a mutually coupled transformer and an integration circuit ZA954456B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9406675A FR2720835B1 (fr) 1994-06-01 1994-06-01 Circuit de mesure de courant comprenant un transformateur à inductance mutuelle et un circuit intégrateur.

Publications (1)

Publication Number Publication Date
ZA954456B true ZA954456B (en) 1996-03-19

Family

ID=9463749

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA954456A ZA954456B (en) 1994-06-01 1995-05-31 Current measurement circuit comprising a mutually coupled transformer and an integration circuit

Country Status (14)

Country Link
US (1) US5574380A (ru)
EP (1) EP0685743B1 (ru)
CN (1) CN1052073C (ru)
AT (1) ATE203830T1 (ru)
CA (1) CA2150635C (ru)
DE (1) DE69521938T2 (ru)
DK (1) DK0685743T3 (ru)
ES (1) ES2161837T3 (ru)
FR (1) FR2720835B1 (ru)
GR (1) GR3037034T3 (ru)
HU (1) HU216994B (ru)
PT (1) PT685743E (ru)
RU (1) RU2160903C2 (ru)
ZA (1) ZA954456B (ru)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003085430A (ja) * 2001-09-12 2003-03-20 Hitachi Ltd 変圧器の受注支援方法
US7952343B2 (en) * 2005-12-15 2011-05-31 Chimei Innolux Corporation Current measurement circuit and method
DE102006038031A1 (de) * 2006-05-26 2007-11-29 Rohde & Schwarz Gmbh & Co. Kg Messvorrichtung und Messverfahren zum Messen der Hüllkurvenleistung und des Leistungsmittelwerts
CN103020379B (zh) * 2012-12-26 2016-12-28 中国科学院微电子研究所 一种对互连结构进行电容提取的方法
US20140285180A1 (en) * 2013-03-25 2014-09-25 National Instruments Corporation Circuit to Compensate for Inaccuracies in Current Transformers
CN105353203A (zh) * 2015-12-10 2016-02-24 成都宏凯瑞科技有限公司 一种基于带通滤波电路的多功能功率测试仪
JP2021016028A (ja) * 2019-07-10 2021-02-12 オムロン株式会社 Ａｄ変換装置、ａｄ変換方法および信号処理装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187466A (en) 1978-01-16 1980-02-05 Rolm Corporation Signal injection technique
US4255707A (en) * 1979-08-07 1981-03-10 Westinghouse Electric Corp. Electrical energy meter
US4467320A (en) * 1982-05-06 1984-08-21 The Bendix Corporation Measurement of a linear variable differential transformer signal by phase conversion
GB8426822D0 (en) * 1984-10-23 1984-11-28 Day S Static electricity meter
FR2648565B1 (fr) * 1989-06-16 1991-10-11 Schlumberger Ind Sa Circuit d'entree pour compteur d'energie electrique
IT1240168B (it) * 1990-04-05 1993-11-27 Marelli Autronica Sistema di conversione analogico/digitale a risoluzione incrementata.
US5265267A (en) * 1991-08-29 1993-11-23 Motorola, Inc. Integrated circuit including a surface acoustic wave transformer and a balanced mixer
US5180979A (en) * 1991-10-07 1993-01-19 Honeywell Inc. Position measurement sensor using a linear variable differential transformer with a triangular pulse input and output
JPH06130098A (ja) * 1992-09-07 1994-05-13 Mitsubishi Electric Corp 電子式電力量計等の信号入力制御方法および装置
ES2125961T3 (es) 1993-02-26 1999-03-16 Schlumberger Ind Sa Convertidor de analogico a digital con una señal de activacion modulada.

Also Published As

Publication number Publication date
GR3037034T3 (en) 2002-01-31
CN1116309A (zh) 1996-02-07
ATE203830T1 (de) 2001-08-15
RU2160903C2 (ru) 2000-12-20
RU95108873A (ru) 1997-02-10
CN1052073C (zh) 2000-05-03
EP0685743A1 (en) 1995-12-06
PT685743E (pt) 2002-01-30
DK0685743T3 (da) 2001-11-12
CA2150635A1 (en) 1995-12-02
DE69521938D1 (de) 2001-09-06
DE69521938T2 (de) 2002-04-04
EP0685743B1 (en) 2001-08-01
CA2150635C (en) 2002-11-05
FR2720835B1 (fr) 1996-07-12
HUT72215A (en) 1996-03-28
HU216994B (hu) 1999-10-28
FR2720835A1 (fr) 1995-12-08
HU9501594D0 (en) 1995-07-28
ES2161837T3 (es) 2001-12-16
US5574380A (en) 1996-11-12

Similar Documents

Publication Publication Date Title
EP0441299A3 (en) Superconducting circuit having an output conversion circuit
EP0172474A3 (en) Ccd output signal generating circuit
HUT72215A (en) Current measurement circuit comprising a mutually coupled transformer and an integration circuit
EP0508459A3 (en) Digital transmission test signal generating circuit
GB2099252B (en) Circuit arrangement having an output transistor for the switching-on and switching-off of a load
GB2074414B (en) Circuit for providing an input function and an output at a single terminal
DE3666744D1 (en) High-frequency wide band transformer circuit
DE50109448D1 (de) Vorrichtung zur Überwachung und/oder Regelung von schienengebundenen Verkehr
DE3472871D1 (en) Circuit arrangement for the conversion of an input voltage lying within a predetermined frequency range of operation into a proportional output voltage
PL159569B2 (ru)
CS274824B2 (en) Device for current measuring with non-zero mean value
DK0603507T3 (da) Forstærkerkredsløb til lydsignaler
NZ329349A (en) Current meter transformer with symmetric magnetic and current divider circuits
DE3562850D1 (en) Antenna plug socket
JPS5627537A (en) Active antenna
MY119358A (en) Antenna circuit
JPS5431226A (en) Focus circuit
IL99945A0 (en) High input impedance operational amplifier circuit
JPS5763974A (en) Noise eliminator
JPS5331913A (en) Signal transmission unit
EP0496050A3 (ru)
JPS549975A (en) Nonlinear circuit
KR960009802B1 (en) Miss-convergence compensation apparatus
AU2742192A (en) An output circuit
KR0108664Y1 (en) An output buffer circuit