CA1154106A - Low-pass filter for low-frequency signals - Google Patents

Low-pass filter for low-frequency signals

Info

Publication number
CA1154106A
CA1154106A CA000344836A CA344836A CA1154106A CA 1154106 A CA1154106 A CA 1154106A CA 000344836 A CA000344836 A CA 000344836A CA 344836 A CA344836 A CA 344836A CA 1154106 A CA1154106 A CA 1154106A
Authority
CA
Canada
Prior art keywords
integrator
output
input
voltage
low
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
Application number
CA000344836A
Other languages
English (en)
French (fr)
Inventor
Jean-Claude G. Six
Jean-Claude Kaire
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1154106A publication Critical patent/CA1154106A/en
Expired 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
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/3432—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with bipolar transistors
    • H03F3/3435—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with bipolar transistors using Darlington amplifiers
    • 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
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • 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
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Manipulation Of Pulses (AREA)
  • Amplifiers (AREA)
CA000344836A 1979-02-02 1980-01-31 Low-pass filter for low-frequency signals Expired CA1154106A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7902759 1979-02-02
FR7902759A FR2448251A1 (fr) 1979-02-02 1979-02-02 Filtre passe-bas pour signaux basse frequence

Publications (1)

Publication Number Publication Date
CA1154106A true CA1154106A (en) 1983-09-20

Family

ID=9221548

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000344836A Expired CA1154106A (en) 1979-02-02 1980-01-31 Low-pass filter for low-frequency signals

Country Status (6)

Country Link
US (1) US4338530A (cg-RX-API-DMAC7.html)
EP (1) EP0014506B1 (cg-RX-API-DMAC7.html)
JP (1) JPS55133122A (cg-RX-API-DMAC7.html)
CA (1) CA1154106A (cg-RX-API-DMAC7.html)
DE (1) DE3064464D1 (cg-RX-API-DMAC7.html)
FR (1) FR2448251A1 (cg-RX-API-DMAC7.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805126A (en) * 1985-11-26 1989-02-14 Rodems James D Electronic compensation network
NO300520B1 (no) * 1987-07-16 1997-06-09 Siemens Ag Testinnretning for digital-ekkokompensatorer
US5121009A (en) * 1990-06-15 1992-06-09 Novatel Communications Ltd. Linear phase low pass filter
US5361009A (en) * 1992-06-29 1994-11-01 Lu Chao C Thyristor controller
US6977601B1 (en) * 2004-01-29 2005-12-20 Raytheon Company Low power current input delta-sigma ADC using injection FET reference
US11114854B1 (en) * 2021-02-11 2021-09-07 King Abdulaziz University Dual current controller of inverter interfaced renewable energy sources for accurate phase selection method and grid codes compliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678416A (en) * 1971-07-26 1972-07-18 Richard S Burwen Dynamic noise filter having means for varying cutoff point
US4215280A (en) * 1978-09-01 1980-07-29 Joseph Mahig Phase responsive frequency detector
US4257006A (en) * 1979-01-25 1981-03-17 The Regents Of The University Of Minnesota Integrable analog active filter and method of same

Also Published As

Publication number Publication date
FR2448251A1 (fr) 1980-08-29
JPS55133122A (en) 1980-10-16
JPS6334649B2 (cg-RX-API-DMAC7.html) 1988-07-12
DE3064464D1 (en) 1983-09-08
US4338530A (en) 1982-07-06
EP0014506B1 (fr) 1983-08-03
EP0014506A1 (fr) 1980-08-20

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Legal Events

Date Code Title Description
MKEX Expiry