HK40996A - Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit - Google Patents

Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit

Info

Publication number
HK40996A
HK40996A HK40996A HK40996A HK40996A HK 40996 A HK40996 A HK 40996A HK 40996 A HK40996 A HK 40996A HK 40996 A HK40996 A HK 40996A HK 40996 A HK40996 A HK 40996A
Authority
HK
Hong Kong
Prior art keywords
electrically controllable
circuit
filter arrangement
oscillator circuit
controllable oscillator
Prior art date
Application number
HK40996A
Other languages
English (en)
Inventor
Bram Nauta
Original Assignee
Philips Electronics 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 Electronics Nv filed Critical Philips Electronics Nv
Publication of HK40996A publication Critical patent/HK40996A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • 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
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0472—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
    • 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
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0444—Simulation of ladder networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0038—Circuit elements of oscillators including a current mirror
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0058—Circuit elements of oscillators with particular transconductance characteristics, e.g. an operational transconductance amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0062—Bias and operating point
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0078—Functional aspects of oscillators generating or using signals in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0086—Functional aspects of oscillators relating to the Q factor or damping of the resonant circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
HK40996A 1990-05-01 1996-03-07 Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit HK40996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9001034 1990-05-01

Publications (1)

Publication Number Publication Date
HK40996A true HK40996A (en) 1996-03-15

Family

ID=19857036

Family Applications (1)

Application Number Title Priority Date Filing Date
HK40996A HK40996A (en) 1990-05-01 1996-03-07 Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit

Country Status (6)

Country Link
US (1) US5117205A (de)
EP (1) EP0455298B1 (de)
JP (1) JPH04348614A (de)
KR (1) KR0185406B1 (de)
DE (1) DE69102813T2 (de)
HK (1) HK40996A (de)

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US5172076A (en) * 1992-03-26 1992-12-15 Northern Telecom Limited Resonant circuit formed of two amplifiers connected in a loop and multiple resonator circuits constructed therefrom
JP2906832B2 (ja) * 1992-05-29 1999-06-21 日本電気株式会社 全差動型アナログ回路
ES2123538T3 (es) * 1992-07-24 1999-01-16 Alsthom Cge Alcatel Sistema de sintonizacion de frecuencia para un par ota-c.
USH1883H (en) * 1992-12-03 2000-10-03 The United States Of America As Represented By The Secretary Of The Navy Continuous-time adaptive learning circuit
US5564089A (en) * 1993-04-20 1996-10-08 Motorola, Inc. Current controlled variable frequency oscillator having an improved operational transconductance amplifier
US5371475A (en) * 1993-06-03 1994-12-06 Northern Telecom Limited Low noise oscillators and tracking filters
JP3208975B2 (ja) * 1993-12-28 2001-09-17 株式会社日立製作所 アクティブフィルタ制御方式
JP2834018B2 (ja) * 1995-02-21 1998-12-09 山形日本電気株式会社 アクティブフィルタ
JP2800721B2 (ja) * 1995-06-03 1998-09-21 日本電気株式会社 ジャイレータ回路を用いたｌｃ共振回路
US5576647A (en) * 1995-06-22 1996-11-19 Marvell Technology Group, Ltd. Charge pump for phase lock loop
US5953379A (en) * 1996-02-23 1999-09-14 Harris Corporation Current-controlled carrier tracking filter for improved spurious signal suppression
US5663690A (en) * 1996-03-06 1997-09-02 Motorola, Inc. Constant high Q voltage controlled oscillator
KR19980042114A (ko) * 1996-11-11 1998-08-17 가나이 츠토무 위상록루프회로를 갖는 시스템
JPH10171774A (ja) * 1996-12-13 1998-06-26 Fujitsu Ltd 半導体集積回路
US6069505A (en) * 1997-03-20 2000-05-30 Plato Labs, Inc. Digitally controlled tuner circuit
US5856757A (en) * 1997-06-11 1999-01-05 Philips Electronics North America Corporation gm-C cell with two stage common mode control and current boost
EP0887927B1 (de) * 1997-06-25 2003-05-07 TELEFONAKTIEBOLAGET L M ERICSSON (publ) TDMA Master-Slave Filterabstimmung
DE19800206A1 (de) * 1998-01-07 1999-07-15 Philips Patentverwaltung Integrator-Filterschaltung
US6008701A (en) * 1998-03-02 1999-12-28 Analog Devices,Inc. Quadrature oscillator using inherent nonlinearities of impedance cells to limit amplitude
US6137375A (en) * 1999-05-28 2000-10-24 The Trustees Of Columbia University In The City Of New York Loss control loop circuit for controlling the output voltage of a voltage-controlled oscillator
GB2352102B (en) * 1999-07-16 2004-06-16 Ericsson Telefon Ab L M Integrated circuit
US6191655B1 (en) 1999-08-27 2001-02-20 Conexant Systems, Inc. Six inverting amplifier transconductance stage and methods for its use
JP2001345696A (ja) 2000-05-30 2001-12-14 Oki Electric Ind Co Ltd チューニング回路
US7012487B2 (en) * 2001-04-18 2006-03-14 Broadcom Corporation Transconductance device employing native MOS transistors
FR2844117A1 (fr) 2002-08-30 2004-03-05 St Microelectronics Sa Generateur de frequence sinusoidale et convertisseur de signaux periodiques utilisant le meme
JP2005204204A (ja) * 2004-01-19 2005-07-28 Nec Electronics Corp 周波数設定回路
JP2005223439A (ja) * 2004-02-03 2005-08-18 Nec Electronics Corp 周波数設定回路
TWI285994B (en) * 2005-10-28 2007-08-21 Via Tech Inc Tuning circuit for transconductors and related method
WO2007053425A1 (en) * 2005-11-02 2007-05-10 Atmel Corporation Complex band-pass filter
FR2892872B1 (fr) * 2005-11-02 2008-01-04 Atmel Corp Filtre passe-bande complexe
US20070194839A1 (en) * 2006-02-23 2007-08-23 Anadigics, Inc. Tunable balanced loss compensation in an electronic filter
US7869780B2 (en) * 2007-04-19 2011-01-11 Skyworks Solutions, Inc. Phase-locked loop based controller for adjusting an adaptive continuous-time filter
KR20150014681A (ko) 2013-07-30 2015-02-09 에스케이하이닉스 주식회사 전류 생성 회로와 이를 포함하는 반도체 장치 및 메모리 시스템
CN107834978B (zh) * 2017-11-14 2024-04-30 珠海格力电器股份有限公司 光伏阵列对地绝缘阻抗检测电路、装置及非隔离光伏逆变器

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Publication number Priority date Publication date Assignee Title
US4145670A (en) * 1977-07-05 1979-03-20 Bode Harald E W Multiphase signal oscillator
JPH0787332B2 (ja) * 1986-07-18 1995-09-20 株式会社東芝 フイルタ回路の時定数自動調整回路
US4760353A (en) * 1988-01-04 1988-07-26 Motorola, Inc. Integrated gyrator oscillator

Also Published As

Publication number Publication date
US5117205A (en) 1992-05-26
JPH04348614A (ja) 1992-12-03
EP0455298B1 (de) 1994-07-13
DE69102813T2 (de) 1995-02-02
KR0185406B1 (ko) 1999-04-15
DE69102813D1 (de) 1994-08-18
KR910021012A (ko) 1991-12-20
EP0455298A1 (de) 1991-11-06

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)