ES2062295T3 - Circuito modulador. - Google Patents

Circuito modulador.

Info

Publication number
ES2062295T3
ES2062295T3 ES90200923T ES90200923T ES2062295T3 ES 2062295 T3 ES2062295 T3 ES 2062295T3 ES 90200923 T ES90200923 T ES 90200923T ES 90200923 T ES90200923 T ES 90200923T ES 2062295 T3 ES2062295 T3 ES 2062295T3
Authority
ES
Spain
Prior art keywords
modulator
circuit
amplifier
signal
cascade
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
ES90200923T
Other languages
English (en)
Inventor
Joannes Mathilda Jos Sevenhans
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.)
Nokia Bell NV
Original Assignee
Bell Telephone Manufacturing Co NV
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 Bell Telephone Manufacturing Co NV filed Critical Bell Telephone Manufacturing Co NV
Application granted granted Critical
Publication of ES2062295T3 publication Critical patent/ES2062295T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0004—Circuit elements of modulators
    • H03C2200/0012—Emitter or source coupled transistor pairs or long tail pairs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0004—Circuit elements of modulators
    • H03C2200/0025—Gilbert multipliers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0079—Measures to linearise modulation or reduce distortion of modulation characteristics

Landscapes

  • Amplitude Modulation (AREA)
  • Amplifiers (AREA)
  • Details Of Television Scanning (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

CIRCUITO MODULADOR (MOD) CON UN MODULADOR PROPIO Y UN GENERADOR DE SEÑAL DE CORRECCION. EL MODULADOR INCLUYE EL MONTAJE EN CASCADA DE UN AMPLIFICADOR (T11, T21, CS11, T12, T22, CS12) Y UN PRIMER CIRCUITO CONMUTADOR (R11, T31, T51, R12, T32, T52), MIENTRAS QUE EL GENERADOR INCLUYE EL MONTAJE EN CASCADA DEL MISMO AMPLIFICADOR Y UN SEGUNDO CIRCUITO CONMUTADOR (R21, T61, T42, R22, T62, T41) CON UNA SALIDA DE CONEXION (P11, P12) ACOPLADA A UNA ENTRADA DE RETROALIMENTACION (P21, P22) DEL AMPLIFICADOR A TRAVES DE UN CIRCUITO DE RETROALIMENTACION (T71, R31, CS21, T72, R32, CS22). EL AMPLIFICADOR Y LOS CIRCUITOS CONMUTADORES SE CONTROLAN POR UNA SEÑAL DE MODULACION Y UNA SEÑAL DE PORTADORA RESPECTIVAMENTE Y LOS CIRCUITOS CONMUTADORES PRIMERO Y SEGUNDO PROPORCIONAN UNA SEÑAL DE SALIDA MODULADA Y UNA SEÑAL DE CORRECCION SUSTANCIALMENTE IGUAL A LA ENVOLTURA DE LA SEÑAL DE SALIDA MODULADA Y UTILIZADA PARA DISMINUIR LA DISTORSION DEL MODULADOR.
ES90200923T 1990-04-13 1990-04-13 Circuito modulador. Expired - Lifetime ES2062295T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90200923A EP0451372B1 (en) 1990-04-13 1990-04-13 Modulator circuit

Publications (1)

Publication Number Publication Date
ES2062295T3 true ES2062295T3 (es) 1994-12-16

Family

ID=8204991

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90200923T Expired - Lifetime ES2062295T3 (es) 1990-04-13 1990-04-13 Circuito modulador.

Country Status (9)

Country Link
US (1) US5095290A (es)
EP (1) EP0451372B1 (es)
JP (1) JP3193388B2 (es)
AT (1) ATE110196T1 (es)
CA (1) CA2040354C (es)
DE (1) DE69011667T2 (es)
ES (1) ES2062295T3 (es)
FI (1) FI102796B (es)
NO (1) NO177478C (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2801389B2 (ja) * 1990-11-02 1998-09-21 キヤノン株式会社 信号処理装置
US5398008A (en) * 1992-08-17 1995-03-14 Alcatel N.V. Circuit arrangement for amplitude-modulating the drive signal of a laser
US6400777B1 (en) 1998-04-28 2002-06-04 Avaya Technology Corp. Linear modulator
US6384421B1 (en) * 1999-10-07 2002-05-07 Logical Systems Incorporated Vision system for industrial parts
WO2007122562A2 (en) * 2006-04-21 2007-11-01 Nxp B.V. A modulator for amplitude-modulating a signal
CN101079634B (zh) * 2007-06-06 2010-06-23 华东师范大学 一种流水线结构的数字∑-△调制器
EP2146427A1 (en) * 2008-07-07 2010-01-20 Nxp B.V. Digital modulator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040274B1 (en) * 1980-05-20 1984-02-22 Motorola, Inc. Self balancing modulator and its application in a chroma demodulator
JPS58171105A (ja) * 1982-03-31 1983-10-07 Toshiba Corp 振幅変調器
DE3545006A1 (de) * 1985-12-19 1987-07-02 Philips Patentverwaltung Modulator

Also Published As

Publication number Publication date
ATE110196T1 (de) 1994-09-15
US5095290A (en) 1992-03-10
JPH04227304A (ja) 1992-08-17
FI911786A7 (fi) 1991-10-14
NO177478B (no) 1995-06-12
NO177478C (no) 1995-09-20
NO911188D0 (no) 1991-03-25
EP0451372A1 (en) 1991-10-16
CA2040354C (en) 1993-07-20
NO911188L (no) 1991-10-14
FI911786A0 (fi) 1991-04-12
FI102796B1 (fi) 1999-02-15
JP3193388B2 (ja) 2001-07-30
CA2040354A1 (en) 1993-07-20
EP0451372B1 (en) 1994-08-17
FI102796B (fi) 1999-02-15
DE69011667D1 (de) 1994-09-22
DE69011667T2 (de) 1995-01-19

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