DE2602978A1 - Funktionsabstimmbares aktives rc-filter - Google Patents

Funktionsabstimmbares aktives rc-filter

Info

Publication number
DE2602978A1
DE2602978A1 DE19762602978 DE2602978A DE2602978A1 DE 2602978 A1 DE2602978 A1 DE 2602978A1 DE 19762602978 DE19762602978 DE 19762602978 DE 2602978 A DE2602978 A DE 2602978A DE 2602978 A1 DE2602978 A1 DE 2602978A1
Authority
DE
Germany
Prior art keywords
resistor
differential amplifier
filter
inverting input
output
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.)
Pending
Application number
DE19762602978
Other languages
German (de)
English (en)
Inventor
Stalin A Boctor
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Publication of DE2602978A1 publication Critical patent/DE2602978A1/de
Pending 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
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier

Landscapes

  • Networks Using Active Elements (AREA)
DE19762602978 1975-01-27 1976-01-27 Funktionsabstimmbares aktives rc-filter Pending DE2602978A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/544,433 US3946328A (en) 1975-01-27 1975-01-27 Functionally tunable active filter

Publications (1)

Publication Number Publication Date
DE2602978A1 true DE2602978A1 (de) 1976-07-29

Family

ID=24172166

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762602978 Pending DE2602978A1 (de) 1975-01-27 1976-01-27 Funktionsabstimmbares aktives rc-filter

Country Status (6)

Country Link
US (1) US3946328A (US07655688-20100202-C00086.png)
JP (1) JPS562452B2 (US07655688-20100202-C00086.png)
DE (1) DE2602978A1 (US07655688-20100202-C00086.png)
FR (1) FR2298904A1 (US07655688-20100202-C00086.png)
NL (1) NL7514846A (US07655688-20100202-C00086.png)
SE (1) SE7600787L (US07655688-20100202-C00086.png)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537560A1 (de) * 1975-08-22 1977-03-03 Sartorius Werke Gmbh Verfahren und schaltungsanordnung zur aufbereitung von gleichstromsignalen bei elektrischen messwertgebern, insbesondere elektromechanischen praezisions- und feinwaagen
US4069459A (en) * 1976-08-23 1978-01-17 Santa Barbara Research Center Feedback capacitor divider
DE2813946C2 (de) * 1978-03-31 1980-01-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Filterschaltung mit einer biquadratischen Übertragungsfunktion
US4272738A (en) * 1978-04-25 1981-06-09 Convex Corporation Programmable delay response shape bulk delay extender
US4257006A (en) * 1979-01-25 1981-03-17 The Regents Of The University Of Minnesota Integrable analog active filter and method of same
US4352074A (en) * 1980-02-01 1982-09-28 Westinghouse Electric Corp. Phase-locked loop filter
US4356451A (en) * 1980-06-16 1982-10-26 Wilson Harold E Active band pass filter
JPS5952260U (ja) * 1982-09-29 1984-04-06 株式会社クボタ 変速機構
US4481480A (en) * 1982-10-04 1984-11-06 Tektronix, Inc. Feedback amplifier having a voltage-controlled compensation circuit
JPS5980553A (ja) * 1982-10-30 1984-05-10 Aisin Warner Ltd 車両用無段自動変速機の前進後進切換え用遊星歯車変速装置
JPS5980554A (ja) * 1982-10-30 1984-05-10 Aisin Warner Ltd 車両用自動変速機の遊星歯車変速装置
US4954785A (en) * 1989-04-12 1990-09-04 Sundstrand Corporation Auto tracking notch filter using switched capacitors to measure harmonic distortion and noise contained in a signal source
US5131044A (en) * 1990-06-13 1992-07-14 Peavey Electronics Corporation Amplifier circuitry with mode compensation and selectable gain and frequency response in pre and post distortion circuits
US5041745A (en) * 1990-10-01 1991-08-20 General Signal Corporation Failsafe bandpass filter/decoder
US5197102A (en) * 1991-01-14 1993-03-23 Peavey Electronics Corporation Audio power amplifier system with frequency selective damping factor controls
US5235223A (en) * 1991-08-29 1993-08-10 Harman International Industries, Inc. Constant Q peaking filter utilizing synthetic inductor and simulated capacitor
US5539354A (en) * 1993-08-18 1996-07-23 Carsten; Bruce W. Integrator for inductive current sensor
US5852359A (en) * 1995-09-29 1998-12-22 Stmicroelectronics, Inc. Voltage regulator with load pole stabilization
US5648718A (en) * 1995-09-29 1997-07-15 Sgs-Thomson Microelectronics, Inc. Voltage regulator with load pole stabilization
US5850139A (en) * 1997-02-28 1998-12-15 Stmicroelectronics, Inc. Load pole stabilized voltage regulator circuit
FI103744B (fi) * 1997-10-15 1999-08-31 Nokia Mobile Phones Ltd Menetelmä ja järjestely aktiivisuotimen kalibroimiseksi
JP3114680B2 (ja) * 1997-12-15 2000-12-04 日本電気株式会社 アクティブフィルタ
US6400221B2 (en) 2000-06-29 2002-06-04 Peavey Electronics Corporation Audio amplifier system with discrete digital frequency selective damping factor controls
US6504350B2 (en) * 2001-05-02 2003-01-07 Agere Systems Inc. Adaptive power supply arrangement
US6642779B2 (en) * 2002-02-25 2003-11-04 Texas Instruments Incorporated Trimming impedance between two nodes connected to a non-fixed voltage level
JP2004032188A (ja) * 2002-06-24 2004-01-29 General Res Of Electronics Inc アクティブフィルタ
JP2008205560A (ja) * 2007-02-16 2008-09-04 Fujitsu Ltd 可変利得増幅回路、フィルタ回路、及び半導体装置
DE102010043730A1 (de) * 2010-11-10 2012-05-10 Intel Mobile Communications GmbH Strom-Spannungs-Wandler, Empfänger, Verfahren zum Bereitstellen eines Spannungssignals und Verfahren zum Empfangen eines Empfangssignals
US8350738B2 (en) 2011-01-20 2013-01-08 International Business Machines Corporation Track and hold amplifiers and digital calibration for analog-to-digital converters
US8344795B2 (en) 2011-01-20 2013-01-01 International Business Machines Corporation Self-calibrated, broadband, tunable, active filter with unity gain cells for multi-standard and/or multiband channel selection
GB201116434D0 (en) * 2011-09-22 2011-11-02 Xtra Sense Ltd A filter circuit
RU2530703C1 (ru) * 2013-02-26 2014-10-10 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Фильтр нижних частот
US9859943B2 (en) * 2013-09-26 2018-01-02 Qorvo Us, Inc. Tunable RF diplexer
US9899986B2 (en) 2013-10-24 2018-02-20 Qoro US, Inc. RF diplexer
US9985682B2 (en) 2013-10-24 2018-05-29 Qorvo Us, Inc. Broadband isolation low-loss ISM/MB-HB tunable diplexer
US9893709B2 (en) 2014-03-14 2018-02-13 Qorvo Us, Inc. RF triplexer architecture
US9319029B1 (en) 2015-06-19 2016-04-19 Clover Network, Inc. System and method for automatic filter tuning
US10317514B2 (en) 2015-08-11 2019-06-11 Raytheon Company Programmable apparatus for synthesized filter notch
US11415678B2 (en) 2018-01-12 2022-08-16 Analog Devices International Unlimited Company Receiver with tunable filter for light range finding system
US11683022B2 (en) * 2021-03-04 2023-06-20 Kinetic Technologies International Holdings Lp Electromagnetic interference suppression in power converters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838351A (en) * 1971-09-07 1974-09-24 Hekimian Laboratories Inc Active notch filter and dual mode filter/oscillator
US3805178A (en) * 1972-08-25 1974-04-16 Post Office Rc active filter circuit

Also Published As

Publication number Publication date
SE7600787L (sv) 1976-07-28
JPS5199951A (US07655688-20100202-C00086.png) 1976-09-03
JPS562452B2 (US07655688-20100202-C00086.png) 1981-01-20
NL7514846A (nl) 1976-07-29
US3946328A (en) 1976-03-23
FR2298904A1 (fr) 1976-08-20

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