FR2985876B1 - Dispositif a capacite variable - Google Patents

Dispositif a capacite variable

Info

Publication number
FR2985876B1
FR2985876B1 FR1250442A FR1250442A FR2985876B1 FR 2985876 B1 FR2985876 B1 FR 2985876B1 FR 1250442 A FR1250442 A FR 1250442A FR 1250442 A FR1250442 A FR 1250442A FR 2985876 B1 FR2985876 B1 FR 2985876B1
Authority
FR
France
Prior art keywords
variable capacity
variable
capacity
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 - Fee Related
Application number
FR1250442A
Other languages
English (en)
Other versions
FR2985876A1 (fr
Inventor
Yvan Morandini
Romain Debroucke
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.)
STMicroelectronics SA
International Business Machines Corp
Original Assignee
STMicroelectronics SA
International Business Machines Corp
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 STMicroelectronics SA, International Business Machines Corp filed Critical STMicroelectronics SA
Priority to FR1250442A priority Critical patent/FR2985876B1/fr
Priority to US13/745,634 priority patent/US9077282B2/en
Publication of FR2985876A1 publication Critical patent/FR2985876A1/fr
Application granted granted Critical
Publication of FR2985876B1 publication Critical patent/FR2985876B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1212—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1228—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more field effect transistors
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1246—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising transistors used to provide a variable capacitance
    • H03B5/1253—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising transistors used to provide a variable capacitance the transistors being field-effect transistors
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1262—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
    • H03B5/1265—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements switched capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/20—Continuous tuning of single resonant circuit by varying inductance only or capacitance only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Networks Using Active Elements (AREA)
FR1250442A 2012-01-17 2012-01-17 Dispositif a capacite variable Expired - Fee Related FR2985876B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1250442A FR2985876B1 (fr) 2012-01-17 2012-01-17 Dispositif a capacite variable
US13/745,634 US9077282B2 (en) 2012-01-17 2013-01-18 Device of variable capacitance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1250442A FR2985876B1 (fr) 2012-01-17 2012-01-17 Dispositif a capacite variable

Publications (2)

Publication Number Publication Date
FR2985876A1 FR2985876A1 (fr) 2013-07-19
FR2985876B1 true FR2985876B1 (fr) 2014-02-14

Family

ID=46197387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1250442A Expired - Fee Related FR2985876B1 (fr) 2012-01-17 2012-01-17 Dispositif a capacite variable

Country Status (2)

Country Link
US (1) US9077282B2 (fr)
FR (1) FR2985876B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9515651B2 (en) 2014-06-19 2016-12-06 Triune Ip Llc Galvanically isolated switch system
JP6595844B2 (ja) * 2015-08-26 2019-10-23 ルネサスエレクトロニクス株式会社 デジタル可変容量回路、共振回路、増幅回路、及び送信機

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6226506B1 (en) * 1998-05-29 2001-05-01 Silicon Laboratories, Inc. Method and apparatus for eliminating floating voltage nodes within a discreetly variable capacitance used for synthesizing high-frequency signals for wireless communications
US6013958A (en) * 1998-07-23 2000-01-11 Lucent Technologies Inc. Integrated circuit with variable capacitor
US6249458B1 (en) 2000-06-22 2001-06-19 Xilinx, Inc. Switching circuit for transference of multiple negative voltages
JP3549479B2 (ja) 2000-10-16 2004-08-04 寛治 大塚 バラクタデバイスを備えた半導体集積回路
US6621362B2 (en) 2001-05-18 2003-09-16 Broadcom Corporation Varactor based differential VCO band switching
US6753738B1 (en) * 2001-06-25 2004-06-22 Silicon Laboratories, Inc. Impedance tuning circuit
US20060255865A1 (en) * 2005-05-11 2006-11-16 Comlent Holdings, Inc. Differential switches for voltage controlled oscillator coarse tuning
FR2890257A1 (fr) 2005-08-23 2007-03-02 St Microelectronics Sa Element de circuit a capacite variable
US8248157B2 (en) 2009-02-25 2012-08-21 Infineon Technologies Ag Variable capacitance unit
JP2010278658A (ja) 2009-05-27 2010-12-09 Renesas Electronics Corp 電圧制御発振器
US7982548B2 (en) 2009-08-05 2011-07-19 Apple Inc. Resonant oscillator with oscillation-startup circuitry
US8288895B2 (en) * 2009-11-27 2012-10-16 Samsung Electro-Mechanics High-power tunable capacitor
US8351232B2 (en) * 2009-12-28 2013-01-08 Nxp B.V. Power factor corrector with high power factor at low load or high mains voltage conditions
US8514028B2 (en) 2011-08-17 2013-08-20 International Business Machines Corporation Load tolerant voltage controlled oscillator (VCO), IC and CMOS IC including the VCO

Also Published As

Publication number Publication date
US20130181785A1 (en) 2013-07-18
FR2985876A1 (fr) 2013-07-19
US9077282B2 (en) 2015-07-07

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20150930