FI72018C - Lågpassfilter för telefonband. - Google Patents

Lågpassfilter för telefonband. Download PDF

Info

Publication number
FI72018C
FI72018C FI791076A FI791076A FI72018C FI 72018 C FI72018 C FI 72018C FI 791076 A FI791076 A FI 791076A FI 791076 A FI791076 A FI 791076A FI 72018 C FI72018 C FI 72018C
Authority
FI
Finland
Prior art keywords
resistor
capacitor
filter
operational amplifier
low
Prior art date
Application number
FI791076A
Other languages
English (en)
Finnish (fi)
Other versions
FI72018B (fi
FI791076A (fi
Inventor
Gerard Bars
Jacques Baudin
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of FI791076A publication Critical patent/FI791076A/fi
Publication of FI72018B publication Critical patent/FI72018B/fi
Application granted granted Critical
Publication of FI72018C publication Critical patent/FI72018C/sv

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
    • 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

  • Networks Using Active Elements (AREA)
FI791076A 1978-04-07 1979-04-02 Lågpassfilter för telefonband. FI72018C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7810479A FR2422291A1 (fr) 1978-04-07 1978-04-07 Filtre passe-bas pour bande telephonique
FR7810479 1978-04-07

Publications (3)

Publication Number Publication Date
FI791076A FI791076A (fi) 1979-10-08
FI72018B FI72018B (fi) 1986-11-28
FI72018C true FI72018C (sv) 1987-03-09

Family

ID=9206879

Family Applications (1)

Application Number Title Priority Date Filing Date
FI791076A FI72018C (sv) 1978-04-07 1979-04-02 Lågpassfilter för telefonband.

Country Status (15)

Country Link
JP (1) JPS54134952A (sv)
AU (1) AU4584779A (sv)
BE (1) BE874754A (sv)
DE (1) DE2913135A1 (sv)
EG (1) EG14776A (sv)
FI (1) FI72018C (sv)
FR (1) FR2422291A1 (sv)
GB (1) GB2019146A (sv)
IT (1) IT1118544B (sv)
LU (1) LU81123A1 (sv)
MX (1) MX144741A (sv)
NL (1) NL7902568A (sv)
PL (1) PL214706A1 (sv)
SE (1) SE435121B (sv)
ZA (1) ZA791627B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307626B (en) * 1995-11-24 2000-06-07 Nokia Mobile Phones Ltd A signal receiver
DE10032530C2 (de) * 2000-07-05 2002-10-24 Infineon Technologies Ag Verstärkerschaltung mit Offsetkompensation
US6552604B2 (en) * 2001-02-16 2003-04-22 The Boeing Company Digitally tuned analog notch filter circuit
RU2677362C1 (ru) * 2018-03-14 2019-01-16 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Активный rc-фильтр
RU2722752C1 (ru) * 2019-12-11 2020-06-03 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Полосовой фильтр с независимой подстройкой частоты полюса, затухания полюса и коэффициента передачи

Also Published As

Publication number Publication date
IT7967695A0 (it) 1979-04-03
FR2422291A1 (fr) 1979-11-02
PL214706A1 (pl) 1979-12-17
SE435121B (sv) 1984-09-03
LU81123A1 (fr) 1979-11-07
IT1118544B (it) 1986-03-03
BE874754A (fr) 1979-09-12
FR2422291B1 (sv) 1982-03-19
JPS54134952A (en) 1979-10-19
EG14776A (en) 1985-03-31
GB2019146A (en) 1979-10-24
FI72018B (fi) 1986-11-28
DE2913135A1 (de) 1979-10-18
ZA791627B (en) 1980-04-30
FI791076A (fi) 1979-10-08
AU4584779A (en) 1979-10-11
NL7902568A (nl) 1979-10-09
MX144741A (es) 1981-11-18
SE7903088L (sv) 1979-10-08

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Owner name: COMPAGNIE INDUSTRIELLE DES