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ES2108082T3 - Sistema de sintonizacion de un factor de calidad. - Google Patents

Sistema de sintonizacion de un factor de calidad.

Info

Publication number
ES2108082T3
ES2108082T3 ES92202292T ES92202292T ES2108082T3 ES 2108082 T3 ES2108082 T3 ES 2108082T3 ES 92202292 T ES92202292 T ES 92202292T ES 92202292 T ES92202292 T ES 92202292T ES 2108082 T3 ES2108082 T3 ES 2108082T3
Authority
ES
Spain
Prior art keywords
filter
quality factor
improvement
ota
regulation
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
Application number
ES92202292T
Other languages
English (en)
Inventor
Joannes Mathilda Jos Sevenhans
Paemel Mark Gerrit Steven Van
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel Alsthom Compagnie Generale dElectricite
Application granted granted Critical
Publication of ES2108082T3 publication Critical patent/ES2108082T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0472—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0433—Two integrator loop filters

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

BASADO EN LA IDEA DE QUE EL AMORTIGUAMIENTO DE UN FILTRO REGULABLE ESTA RELACIONADO TANTO CON SU FACTOR DE CALIDAD COMO CON SU MEJORA DE FRECUENCIA, SE DESCRIBE UN SISTEMA QUE REGULA EL FACTOR DE CALIDA DE DICHO FILTRO HASTA EL VALOR DE FACTOR DE CALIDAD DESEADO AL REGULAR LA MEJORA DE FRECUENCIA DEL FILTRO HASTA UN VALOR DE MEJORA DESEADO.EL SISTEMA ES PARTICULARMENTE UTIL EN EL CAMPO DE FILTROS OTA-C, Y CONSISTE EN UNOS CAMPOS DE REGULACION PRIMERO (P1) Y SEGUNDO (P2) QUE INCLUYEN UN FILTRO REGULABLE (BIQUAD) Y UNOS AMPLIFICADORES FIJADOS (B-OTA-1,B-OTA-2). LA MEJORA DE ESTOS AMPLIFICADORES CORRESPONDE A LOS VALORES DESEADOS. EL SISTEMA DE REGULACION INCLUYE ADEMAS UNOS MEDIOS DE ADAPTACION (MM) PARA EQUALIZAR LAS MEJORAS EN AMBOS CAMPOS (P1,P2) AL GENERAR UNA SEÑAL DE REGULACION DEL FACTOR DE CALIDAD (VTQ) QUE SE APLICA TANTO AL FILTRO (BIQUAD) COMO A LA REPLICA DEL MISMO UTILIZADA COMO FILTRO MASTER EN UN CAMPO PROCESADOR DE DATOS.LOS MEDIOS (MM)INCLUYEN UNOS RECTIFICADORES DE CORRIENTE(CREC1,C-REC-2)LLEVADOS A CABO PARA UTILIZAR EN HARDWARE PEQUEÑO.
ES92202292T 1992-07-24 1992-07-24 Sistema de sintonizacion de un factor de calidad. Expired - Lifetime ES2108082T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92202292A EP0579875B1 (en) 1992-07-24 1992-07-24 Quality factor tuning system

Publications (1)

Publication Number Publication Date
ES2108082T3 true ES2108082T3 (es) 1997-12-16

Family

ID=8210806

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92202292T Expired - Lifetime ES2108082T3 (es) 1992-07-24 1992-07-24 Sistema de sintonizacion de un factor de calidad.

Country Status (6)

Country Link
US (1) US5471168A (es)
EP (1) EP0579875B1 (es)
JP (1) JPH06164313A (es)
DE (1) DE69222161T2 (es)
ES (1) ES2108082T3 (es)
FI (1) FI933311A (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2162891T3 (es) * 1995-02-10 2002-01-16 Cit Alcatel Integrador gm-c sintonizable lineal.
US5731737A (en) * 1996-04-16 1998-03-24 International Business Machines Corporation Method and apparatus for reducing clock switching noise in continuous time filters
EP0847137B9 (en) * 1996-12-04 2004-10-27 STMicroelectronics S.r.l. Biquadratic basic cell for programmable analog time-continuous filter
US6266522B1 (en) 1998-02-04 2001-07-24 Ericsson Inc. Apparatus and methods for tuning bandpass filters
US6483355B1 (en) 1998-07-24 2002-11-19 Gct Semiconductor, Inc. Single chip CMOS transmitter/receiver and method of using same
US6194947B1 (en) * 1998-07-24 2001-02-27 Global Communication Technology Inc. VCO-mixer structure
US6057737A (en) * 1998-10-14 2000-05-02 Pritchard; Eric K. Non-linear asymmetrical audio amplifiers
US6137375A (en) * 1999-05-28 2000-10-24 The Trustees Of Columbia University In The City Of New York Loss control loop circuit for controlling the output voltage of a voltage-controlled oscillator
US6476649B1 (en) * 2000-11-17 2002-11-05 International Business Machines Corporation Driver output swing control using a mirror driver
US7486338B1 (en) 2003-04-28 2009-02-03 Wyszynski Adam S Fully integrated terrestrial TV tuner architecture
US6917252B1 (en) 2003-04-28 2005-07-12 Adam S. Wyszynski Fully integrated automatically-tuned RF and IF active bandpass filters
EP1513253A1 (en) * 2003-09-05 2005-03-09 Semiconductor Ideas to The Market (ItoM) BV Programmable high precision filter
US6965275B2 (en) * 2004-02-13 2005-11-15 Infineon Technologies Ag Method and apparatus for tuning a filter
US7433668B2 (en) * 2004-12-23 2008-10-07 Lucent Technologies Inc. Controlling Q-factor of filters
US7400212B1 (en) 2005-06-07 2008-07-15 Vishinsky Adam S Self-tuned active bandpass filters
KR20100126484A (ko) 2008-03-10 2010-12-01 뉴랜스, 인코포레이티드. 광대역 신호처리 방법, 시스템 및 장치
WO2011152896A1 (en) 2010-02-12 2011-12-08 Newlans, Inc. Broadband analog radio-frequency components
WO2012061385A1 (en) 2010-11-01 2012-05-10 Newlans, Inc. Method and apparatus for power amplifier linearization
US8970252B2 (en) 2010-11-08 2015-03-03 Newlans, Inc. Field programmable analog array
US8779832B2 (en) 2011-11-01 2014-07-15 Newlans, Inc. Wideband signal processing
EP2880762A4 (en) * 2012-09-05 2016-03-30 Spero Devices Inc BIQUADRATIC CALIBRATION
CN112187188B (zh) * 2020-10-19 2025-01-28 琻捷电子科技(江苏)股份有限公司 带通滤波器和振荡电路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528040A (en) * 1968-12-12 1970-09-08 Aerospace Res Electronically variable filter
US4340868A (en) * 1980-05-12 1982-07-20 Motorola, Inc. Current mode biquadratic active filter
GB8513329D0 (en) * 1985-05-28 1985-07-03 Secr Defence Transconductors
US4868516A (en) * 1988-04-14 1989-09-19 John Fluke Mfg. Co., Inc. Alternating current amplifier with digitally controlled frequency response
JPH0648775B2 (ja) * 1989-05-24 1994-06-22 東光株式会社 リープフロッグ・フィルタ
US5063309A (en) * 1990-03-28 1991-11-05 Silicon Systems, Inc. High frequency continuous time filter
US5124593A (en) * 1990-09-26 1992-06-23 National Semiconductor Corporation Continuous-time filter tuning circuit and method

Also Published As

Publication number Publication date
FI933311A (fi) 1994-01-25
DE69222161D1 (de) 1997-10-16
FI933311A0 (fi) 1993-07-22
EP0579875A1 (en) 1994-01-26
DE69222161T2 (de) 1998-02-26
JPH06164313A (ja) 1994-06-10
EP0579875B1 (en) 1997-09-10
US5471168A (en) 1995-11-28

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