BR8108603A - Filtro ativo biquadrado de modo de corrente - Google Patents

Filtro ativo biquadrado de modo de corrente

Info

Publication number
BR8108603A
BR8108603A BR8108603A BR8108603A BR8108603A BR 8108603 A BR8108603 A BR 8108603A BR 8108603 A BR8108603 A BR 8108603A BR 8108603 A BR8108603 A BR 8108603A BR 8108603 A BR8108603 A BR 8108603A
Authority
BR
Brazil
Prior art keywords
biquadrated
current mode
active filter
filter
active
Prior art date
Application number
BR8108603A
Other languages
English (en)
Inventor
Lee Pace Gary
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR8108603A publication Critical patent/BR8108603A/pt

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
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
BR8108603A 1980-05-12 1981-03-13 Filtro ativo biquadrado de modo de corrente BR8108603A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/148,850 US4340868A (en) 1980-05-12 1980-05-12 Current mode biquadratic active filter
PCT/US1981/000345 WO1981003405A1 (en) 1980-05-12 1981-03-13 Current mode biquadratic active filter

Publications (1)

Publication Number Publication Date
BR8108603A true BR8108603A (pt) 1982-04-06

Family

ID=22527690

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8108603A BR8108603A (pt) 1980-05-12 1981-03-13 Filtro ativo biquadrado de modo de corrente

Country Status (9)

Country Link
US (1) US4340868A (pt)
EP (1) EP0052117B1 (pt)
JP (1) JPS57500629A (pt)
KR (1) KR850001539B1 (pt)
AR (1) AR224812A1 (pt)
BR (1) BR8108603A (pt)
CA (1) CA1152167A (pt)
MX (1) MX150293A (pt)
WO (1) WO1981003405A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595885A (en) * 1984-10-01 1986-06-17 Motorola, Inc. Adjustable active filter
NL8603152A (nl) * 1986-12-11 1988-07-01 Philips Nv Filterschakeling.
GB2208340B (en) * 1987-07-17 1992-01-22 Plessey Co Plc Electrical circuits
US4843343A (en) * 1988-01-04 1989-06-27 Motorola, Inc. Enhanced Q current mode active filter
JPH04328976A (ja) * 1991-04-27 1992-11-17 Rohm Co Ltd アクティブフィルタの特性切り換え回路
DE69226862T2 (de) * 1992-07-24 1999-01-21 Alsthom Cge Alcatel Frequenzabstimmungssystem für ein Paar C-Transkonduktanzoperationsverstärker
EP0579875B1 (en) * 1992-07-24 1997-09-10 Alcatel Quality factor tuning system
US5625317A (en) * 1994-08-08 1997-04-29 Texas Instruments Incorporated Tuning method for integrated continuous-time filters
US6433626B1 (en) 2001-01-16 2002-08-13 Motorola, Inc. Current-mode filter with complex zeros
US7414461B2 (en) * 2006-09-25 2008-08-19 Fairchild Semiconductor Corporation Linearization technique for current mode filters
WO2009037625A2 (en) * 2007-09-20 2009-03-26 Nxp B.V. Tunable rf filter
TWI596895B (zh) * 2016-12-16 2017-08-21 國立臺灣大學 具有超級源極隨耦器的低通濾波器及傳輸零點控制方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792367A (en) * 1972-05-01 1974-02-12 Bell Telephone Labor Inc Active controllable filter circuit using variable transconductance amplifier

Also Published As

Publication number Publication date
KR830006994A (ko) 1983-10-12
JPS57500629A (pt) 1982-04-08
MX150293A (es) 1984-04-10
EP0052117A4 (en) 1982-09-10
US4340868A (en) 1982-07-20
AR224812A1 (es) 1982-01-15
WO1981003405A1 (en) 1981-11-26
EP0052117B1 (en) 1984-11-28
KR850001539B1 (ko) 1985-10-16
CA1152167A (en) 1983-08-16
EP0052117A1 (en) 1982-05-26

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