ES2063237T3 - Circuito de medicion del nivel de una señal que comprende medios de correccion del desplazamiento de fase. - Google Patents
Circuito de medicion del nivel de una señal que comprende medios de correccion del desplazamiento de fase.Info
- Publication number
- ES2063237T3 ES2063237T3 ES90124567T ES90124567T ES2063237T3 ES 2063237 T3 ES2063237 T3 ES 2063237T3 ES 90124567 T ES90124567 T ES 90124567T ES 90124567 T ES90124567 T ES 90124567T ES 2063237 T3 ES2063237 T3 ES 2063237T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- level
- reference voltage
- producing
- compensation
- 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 - Lifetime
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
LA INVENCION SE REFIERE A UN CIRCUITO QUE EFECTUA LA MEDICION DEL NIVEL DE UNA SEÑAL ELECTRICA, SIENDO HECHA ESTA MEDICION EVENTUALMENTE RESPECTO DE UNA TENSION DE REFERENCIA. SE APLICA VENTAJOSAMENTE EN EL CUADRO DE LOS AMPLIFICADORES DE CONTROL AUTOMATICO DE GANANCIA. SEGUN LA INVENCION, EL CIRCUITO DE MEDIDA DEL NIVEL DE UNA SEÑAL ELECTRICA DE ENTRADA (VE) COMPRENDE UN AMPLIFICADOR DE ENTRADA (1) POLARIZADO A PARTIR DE UNA TENSION DE POLARIZACION QUE RECIBE ESTA SEÑAL DE ENTRADA VE Y QUE PRODUCE UNA SEÑAL DE SALIDA (V SUB S) SEGUIDA DE UN MODULO DE DETECCION (2) QUE A SU VEZ VA SEGUIDO DE UN INTEGRADOR (3) QUE EMITE UNA SEÑAL DE INTEGRACION (V SUB I), CONSTITUYENDO ESTOS TRES ELEMENTOS UNA CADENA DE MEDIDA, SIENDO DICHA SEÑAL DE INTEGRACION LA SUMA DE UNA SEÑAL DE NIVEL PROPORCIONAL AL NIVEL DE DICHA SEÑAL DE ENTRADA (VE) Y DE UNA SEÑAL DE DESFASE. EL CIRCUITO DE MEDIDA COMPRENDE ADEMAS UN GENERADOR (6) QUE PRODUCE UNA TENSION DE REFERENCIA (V SUB R), UN MODULO DE COMPENSACION (4) QUE RECIBE ESTA TENSION DE REFERENCIA (V SUB R) Y QUE PRODUCE UNA SEÑAL DE COMPENSACION (V SUB C), UN AMPLIFICADOR DE MEDIDA DIFERENCIAL (5) QUE RECIBE LAS SEÑALES DE INTEGRACION Y DE COMPENSACION Y QUE PRODUCE UNA SEÑAL DE MEDIDA (V SUB M) Y SE CARACTERIZA POR EL HECHO DE QUE, LA TENSION DE POLARIZACION ES LA TENSION DE REFERENCIA (V SUB R) Y QUE EL MODULO DE COMPENSACION (4) COMPRENDE ESCALONES QUE CORRESPONDEN A LOS ELEMENTOS DE LA CADENA DE MEDIDA PARA ENCAUZAR LA TENSION DE REFERENCIA (V SUB R) EN CONDICIONES HOMOTETICAS DE LOS DE LA CADENA DE MEDIDA PARA PRODUCIR, EN PARTICULAR, UNA SEÑAL DE CORRECCION CON IGUAL VALOR QUE LA SEÑAL DE DESFASE, ENCONTRANDOSE INCLUIDO ESTA SEÑAL DE CORRECCION EN LA SEÑAL DE COMPENSACION (V SUB C).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8917107A FR2656427B1 (fr) | 1989-12-22 | 1989-12-22 | Circuit de mesure du niveau d'un signal electrique comprenant des moyens de correction de decalage et application aux amplificateurs a commande automatique de gain. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2063237T3 true ES2063237T3 (es) | 1995-01-01 |
Family
ID=9388905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90124567T Expired - Lifetime ES2063237T3 (es) | 1989-12-22 | 1990-12-18 | Circuito de medicion del nivel de una señal que comprende medios de correccion del desplazamiento de fase. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5132609A (es) |
EP (1) | EP0452557B1 (es) |
JP (1) | JPH0774811B2 (es) |
AT (1) | ATE112395T1 (es) |
AU (1) | AU635101B2 (es) |
CA (1) | CA2032401C (es) |
DE (1) | DE69012982T2 (es) |
ES (1) | ES2063237T3 (es) |
FR (1) | FR2656427B1 (es) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778303A (en) * | 1993-04-16 | 1998-07-07 | Matsushita Electric Industrial Co., Inc. | Multiplexed audio-video signal transmission system through pair-wire |
DE4341425B4 (de) * | 1993-12-04 | 2004-05-06 | Robert Bosch Gmbh | Verfahren zum Bestimmen des durch eine Last in einem Kfz fließenden Stroms |
GB2296399B (en) * | 1994-11-23 | 1998-10-14 | Motorola Inc | Compensating circuit |
US6651020B2 (en) * | 1997-12-24 | 2003-11-18 | Edward S. More | Method and apparatus for economical drift compensation in high resolution measurements |
US6882218B2 (en) * | 2002-08-26 | 2005-04-19 | Broadcom Corporation | Transimpedance amplifier and offset correction mechanism and method for lowering noise |
US7305310B2 (en) * | 2004-10-18 | 2007-12-04 | Electro Industries/Gauge Tech. | System and method for compensating for potential and current transformers in energy meters |
US7508190B2 (en) | 2004-10-20 | 2009-03-24 | Electro Industries/Gauge Tech. | Test pulses for enabling revenue testable panel meters |
US9080894B2 (en) | 2004-10-20 | 2015-07-14 | Electro Industries/Gauge Tech | Intelligent electronic device for receiving and sending data at high speeds over a network |
US7304586B2 (en) | 2004-10-20 | 2007-12-04 | Electro Industries / Gauge Tech | On-line web accessed energy meter |
US7747733B2 (en) | 2004-10-25 | 2010-06-29 | Electro Industries/Gauge Tech | Power meter having multiple ethernet ports |
US8190381B2 (en) | 2005-01-27 | 2012-05-29 | Electro Industries/Gauge Tech | Intelligent electronic device with enhanced power quality monitoring and communications capabilities |
US8620608B2 (en) | 2005-01-27 | 2013-12-31 | Electro Industries/Gauge Tech | Intelligent electronic device and method thereof |
US8160824B2 (en) | 2005-01-27 | 2012-04-17 | Electro Industries/Gauge Tech | Intelligent electronic device with enhanced power quality monitoring and communication capabilities |
US7996171B2 (en) | 2005-01-27 | 2011-08-09 | Electro Industries/Gauge Tech | Intelligent electronic device with broad-range high accuracy |
US7920976B2 (en) | 2007-03-27 | 2011-04-05 | Electro Industries / Gauge Tech. | Averaging in an intelligent electronic device |
US20130275066A1 (en) | 2007-04-03 | 2013-10-17 | Electro Industries/Gaugetech | Digital power metering system |
US9989618B2 (en) | 2007-04-03 | 2018-06-05 | Electro Industries/Gaugetech | Intelligent electronic device with constant calibration capabilities for high accuracy measurements |
US10845399B2 (en) | 2007-04-03 | 2020-11-24 | Electro Industries/Gaugetech | System and method for performing data transfers in an intelligent electronic device |
US12061218B2 (en) | 2008-03-13 | 2024-08-13 | Ei Electronics Llc | System and method for multi-rate concurrent waveform capture and storage for power quality metering |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2626927B2 (de) * | 1976-06-16 | 1981-02-19 | Bodenseewerk Perkin-Elmer & Co Gmbh, 7770 Ueberlingen | Schaltung zur Umwandlung einer Wechselspannung in eine Gleichspannung |
US4137504A (en) * | 1977-08-12 | 1979-01-30 | Digital Equipment Corporation | Digital filter |
CA1175919A (en) * | 1980-02-20 | 1984-10-09 | Toshitaka Tsuda | Device for discriminating between two values of a signal with dc offset compensation |
US4665326A (en) * | 1981-11-03 | 1987-05-12 | Texas Instruments, Inc. | Voltage comparator |
DE3408220A1 (de) * | 1984-03-07 | 1985-09-12 | Telefunken electronic GmbH, 7100 Heilbronn | Steuerbarer integrator |
DE3502638A1 (de) * | 1985-01-26 | 1986-07-31 | MWB Messwandler-Bau AG, 8600 Bamberg | Verfahren, schaltung und einrichtung zur beseitigung der gleichspannungskomponente eines kapazitiven wechselspannungsteilers |
NL8501882A (nl) * | 1985-07-01 | 1987-02-02 | Philips Nv | Signaalspanning-stroom omzetter. |
US4760286A (en) * | 1987-07-20 | 1988-07-26 | Motorola, Inc. | Comparator with input offset current elimination |
US4871931A (en) * | 1987-10-30 | 1989-10-03 | Gazelle Microcircuits, Inc. | Logic circuit resistant to errors due to supply fluctuations |
US4839535A (en) * | 1988-02-22 | 1989-06-13 | Motorola, Inc. | MOS bandgap voltage reference circuit |
FR2628217B1 (fr) * | 1988-03-07 | 1990-07-27 | Sgs Thomson Microelectronics | Circuit de mesure d'un courant |
US4833418A (en) * | 1988-09-01 | 1989-05-23 | Archive Corporation | Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals |
JP2560888B2 (ja) * | 1990-05-17 | 1996-12-04 | 日本電気株式会社 | レベル検波回路 |
JPH0423506A (ja) * | 1990-05-17 | 1992-01-27 | Nec Corp | Agc検波回路 |
-
1989
- 1989-12-22 FR FR8917107A patent/FR2656427B1/fr not_active Expired - Fee Related
-
1990
- 1990-12-17 CA CA002032401A patent/CA2032401C/fr not_active Expired - Fee Related
- 1990-12-18 AT AT90124567T patent/ATE112395T1/de not_active IP Right Cessation
- 1990-12-18 DE DE69012982T patent/DE69012982T2/de not_active Expired - Fee Related
- 1990-12-18 ES ES90124567T patent/ES2063237T3/es not_active Expired - Lifetime
- 1990-12-18 EP EP90124567A patent/EP0452557B1/fr not_active Expired - Lifetime
- 1990-12-19 US US07/629,904 patent/US5132609A/en not_active Expired - Lifetime
- 1990-12-21 JP JP2418287A patent/JPH0774811B2/ja not_active Expired - Fee Related
- 1990-12-21 AU AU68435/90A patent/AU635101B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
FR2656427B1 (fr) | 1992-03-13 |
FR2656427A1 (fr) | 1991-06-28 |
JPH0774811B2 (ja) | 1995-08-09 |
DE69012982D1 (de) | 1994-11-03 |
AU6843590A (en) | 1991-06-27 |
CA2032401C (fr) | 1994-08-16 |
EP0452557B1 (fr) | 1994-09-28 |
JPH04212070A (ja) | 1992-08-03 |
ATE112395T1 (de) | 1994-10-15 |
CA2032401A1 (fr) | 1991-06-23 |
DE69012982T2 (de) | 1995-01-26 |
EP0452557A1 (fr) | 1991-10-23 |
AU635101B2 (en) | 1993-03-11 |
US5132609A (en) | 1992-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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