ES2085456T3 - Convertidor analogico-digital delta-sigma. - Google Patents

Convertidor analogico-digital delta-sigma.

Info

Publication number
ES2085456T3
ES2085456T3 ES91810875T ES91810875T ES2085456T3 ES 2085456 T3 ES2085456 T3 ES 2085456T3 ES 91810875 T ES91810875 T ES 91810875T ES 91810875 T ES91810875 T ES 91810875T ES 2085456 T3 ES2085456 T3 ES 2085456T3
Authority
ES
Spain
Prior art keywords
input
signal
elector
impulses
comparator
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
ES91810875T
Other languages
English (en)
Inventor
Thomas Budmiger
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.)
Endress and Hauser Flowtec AG
Original Assignee
Endress and Hauser Flowtec AG
Flowtec AG
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 Endress and Hauser Flowtec AG, Flowtec AG filed Critical Endress and Hauser Flowtec AG
Application granted granted Critical
Publication of ES2085456T3 publication Critical patent/ES2085456T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/368—Continuously compensating for, or preventing, undesired influence of physical parameters of noise other than the quantisation noise already being shaped inherently by delta-sigma modulators
    • H03M3/37—Compensation or reduction of delay or phase error
    • H03M3/372—Jitter reduction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/456—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a first order loop filter in the feedforward path

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PARA EVITAR FALLOS DE LINEALIDAD CONDICIONAL EN PROCESOS DE CONMUTACION CON FRECUENCIAS DIFERENTES SE PREVE SEGUN LA PRIMERA O SEGUNDA VARIANTE: UN ELEMENTO (11) INTEGRADO, CUYA ENTRADA DE SEÑAL ES GUIADA COMO SEÑAL (O) ANALOGICA CAMBIABLE; UN COMPARADOR (12) CUYA ENTRADA DE COMPARADOR SE ENCUENTRA EN LA SALIDA DE ELEMENTO (11) INTEGRADOR Y CUYA ENTRADA DE REFERENCIA ESTA EN EL PUNTO CERO DE CONEXION; UN ELECTOR (13) AMPLIADOR, QUE EN DEPENDENCIA DEL NIVEL DE LA SEÑAL DE SALIDA DEL COMPARADOR (12) GENERA UN IMPULSO PEQUEÑO O AMPLIO, CUYA ENTRADA DE SEÑAL SE ENCUENTRA EN LA SALIDA DE COMPARADOR (12) Y DONDE LA PRIMERA ENTRADA DE CICLO ES GUIADA COMO SEÑAL (T) DE INTERVALO ASI COMO SU SEGUNDA ENTRADA DE CICLO ES DEDUCIDA COMO SEÑAL DE INTERVALO ADICIONAL DE LA SEÑAL DE INTERVALO POR MEDIO DE LA DIVISION DE FRECUENCIA (CIFRA DE DIVISION N > 3); Y UN CIRCUITO (14) EN SERIE DE UN PRIMER Y UN SEGUNDO INTERRUPTOR (1,2) ELECTRONICO, QUE SE ENCUENTRAN ENTRE AMBOS POLOS DE UNA TENSION (V) DE REFERENCIA SIMETRICA DE PUNTO CERO DE CONEXION BIPOLAR, DONDE LA ENTRADA DEL CONTROL DEL PRIMER CONMUTADOR (1) ELECTRONICO SE ENCUENTRA EN EL CONMUTADOR (2) SEGUNDO ELECTRONICO NO INVERTIDO EN UNA SALIDA INVERTIDA DEL ELECTOR (13) DE AMPLITUD DE IMPULSO Y DONDE EL CONMUTADOR (1,2) ELECTRONICO DEL PUNTO DE UNION ESTA UNIDO CON UNA DISPOSICION (15) DE REELABORACION ASI COMO SOBRE UNA RESISTENCIA (RK) DE REACOPLAMIENTO UNIDO CON LA SEÑAL DE ENTRADA DEL ELEMENTO (11) INTEGRADOR, CON LO QUE LA ENTRADA DE REFERENCIA DE LA TENSION (UB) DE REFERENCIA SE ENCUENTRA EN EL PUNTO NULO DE CONEXION Y CON LO QUE LA AMPLITUD DE LOS IMPULSOS PEQUEÑOS GENERADOS DEL ELECTOR DE AMPLITUD DE IMPULSOS SON IGUALES DE DURACION DEL PERIODO DE LA SEÑAL DE INTERVALO Y DONDE LA AMPLITUD DEL ELECTOR (13) DE AMPLITUD DE IMPULSO GENERA IMPULSOS AMPLIOS IGUALES A (N ION DEL PERIODO DE LA SEÑAL DE INTERVALO.
ES91810875T 1991-11-13 1991-11-13 Convertidor analogico-digital delta-sigma. Expired - Lifetime ES2085456T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91810875A EP0541878B1 (de) 1991-11-13 1991-11-13 Delta-Sigma-Analog/Digital-Wandler

Publications (1)

Publication Number Publication Date
ES2085456T3 true ES2085456T3 (es) 1996-06-01

Family

ID=8208900

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91810875T Expired - Lifetime ES2085456T3 (es) 1991-11-13 1991-11-13 Convertidor analogico-digital delta-sigma.

Country Status (6)

Country Link
US (1) US5323156A (es)
EP (1) EP0541878B1 (es)
JP (1) JP2509426B2 (es)
DE (1) DE59107659D1 (es)
DK (1) DK0541878T3 (es)
ES (1) ES2085456T3 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815530A (en) * 1995-07-25 1998-09-29 Rohm Co., Ltd. Data converters for sound equipment
DE19619208A1 (de) * 1996-05-11 1997-11-13 Klugbauer Heilmeier Josef Digitaler Verstärker
US5974089A (en) * 1997-07-22 1999-10-26 Tripath Technology, Inc. Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor
US6140952A (en) * 1997-12-26 2000-10-31 Rosemount Inc. Delta sigma circuit with pulse width modulated offset
US6696999B2 (en) * 2002-07-16 2004-02-24 Raytheon Company Sigma delta modulator
ATE369659T1 (de) * 2003-09-22 2007-08-15 Tc Electronic As Selbstoszillierender a/d-umsetzer
KR100909251B1 (ko) * 2007-01-31 2009-07-23 주식회사 하이닉스반도체 아날로그-디지털 변환기 및 이를 포함하는 온도정보출력장치
DE102007054951A1 (de) * 2007-11-17 2009-05-20 Conti Temic Microelectronic Gmbh Sigma-Delta-Wandler zur Digitalisierung eines analogen Signals
US7671774B2 (en) * 2008-05-08 2010-03-02 Freescale Semiconductor, Inc. Analog-to-digital converter with integrator circuit for overload recovery
US10461771B2 (en) 2018-03-20 2019-10-29 Texas Instruments Incorporated Sigma-delta analog-to-digital converter with multiple counters

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659288A (en) * 1969-06-23 1972-04-25 Vermont Technical Groups Inc Analog convertor and computer circuit producing optimized pulse output
US3877020A (en) * 1972-06-27 1975-04-08 Allen W Brunsting Paired transition rebalancing pulse for voltage to frequency converters
US3956700A (en) * 1975-04-18 1976-05-11 Bell Telephone Laboratories, Incorporated Two-feedback-path delta modulation system with circuits for reducing pulse width modulation
US4573037A (en) * 1983-08-01 1986-02-25 Robinton Products, Inc. Analog-to digital converter and method
US4584566A (en) * 1984-12-21 1986-04-22 Honeywell Inc. Analog to digital converter
GB8703100D0 (en) * 1987-02-11 1987-03-18 Secretary Trade Ind Brit Analogue to digital converters
US4926178A (en) * 1988-07-13 1990-05-15 Analog Devices, Inc. Delta modulator with integrator having positive feedback

Also Published As

Publication number Publication date
EP0541878B1 (de) 1996-04-03
JPH05259920A (ja) 1993-10-08
JP2509426B2 (ja) 1996-06-19
EP0541878A1 (de) 1993-05-19
DE59107659D1 (de) 1996-05-09
DK0541878T3 (da) 1996-08-19
US5323156A (en) 1994-06-21

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