ITVA20070009A1 - Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonante - Google Patents
Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonanteInfo
- Publication number
- ITVA20070009A1 ITVA20070009A1 IT000009A ITVA20070009A ITVA20070009A1 IT VA20070009 A1 ITVA20070009 A1 IT VA20070009A1 IT 000009 A IT000009 A IT 000009A IT VA20070009 A ITVA20070009 A IT VA20070009A IT VA20070009 A1 ITVA20070009 A1 IT VA20070009A1
- Authority
- IT
- Italy
- Prior art keywords
- resonant circuit
- inductor
- frequency
- resonance
- adjusting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45183—Long tailed pairs
- H03F3/45188—Non-folded cascode stages
-
- 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
-
- 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
- H03B5/1215—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 the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled long-tailed 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
-
- 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
- H03B5/1271—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 frequency being controlled by a control current, i.e. current controlled oscillators
-
- 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
- H03B5/1296—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 feedback circuit comprising a transformer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45296—Indexing scheme relating to differential amplifiers the AAC comprising one or more discrete capacitive elements, e.g. a transistor coupled as capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45318—Indexing scheme relating to differential amplifiers the AAC comprising a cross coupling circuit, e.g. two extra transistors cross coupled
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45704—Indexing scheme relating to differential amplifiers the LC comprising one or more parallel resonance circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45731—Indexing scheme relating to differential amplifiers the LC comprising a transformer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0153—Electrical filters; Controlling thereof
- H03H7/0161—Bandpass filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/09—Filters comprising mutual inductance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1775—Parallel LC in shunt or branch path
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Filters And Equalizers (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000009A ITVA20070009A1 (it) | 2007-01-17 | 2007-01-17 | Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonante |
US12/015,281 US7649424B2 (en) | 2007-01-17 | 2008-01-16 | Method of adjusting the resonance frequency of an L-C resonant circuit and resonant circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000009A ITVA20070009A1 (it) | 2007-01-17 | 2007-01-17 | Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonante |
Publications (1)
Publication Number | Publication Date |
---|---|
ITVA20070009A1 true ITVA20070009A1 (it) | 2008-07-18 |
Family
ID=39640653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT000009A ITVA20070009A1 (it) | 2007-01-17 | 2007-01-17 | Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonante |
Country Status (2)
Country | Link |
---|---|
US (1) | US7649424B2 (it) |
IT (1) | ITVA20070009A1 (it) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4402143B2 (ja) * | 2007-09-10 | 2010-01-20 | 株式会社日立製作所 | 発振器及びそれを用いた通信システム |
US8031019B2 (en) * | 2009-02-02 | 2011-10-04 | Qualcomm Incorporated | Integrated voltage-controlled oscillator circuits |
US8736392B2 (en) * | 2009-03-18 | 2014-05-27 | Qualcomm Incorporated | Transformer-based CMOS oscillators |
JP4991784B2 (ja) * | 2009-03-31 | 2012-08-01 | 株式会社日立製作所 | 発振器及びそれを用いた周波数生成回路並びに無線通信システム |
US8183948B2 (en) | 2009-09-13 | 2012-05-22 | International Business Machines Corporation | Ultra-compact PLL with wide tuning range and low noise |
US8665033B2 (en) * | 2011-02-18 | 2014-03-04 | Qualcomm Incorporated | Varactorless tunable oscillator |
US8970315B2 (en) | 2011-09-09 | 2015-03-03 | Analog Devices, Inc. | Low noise oscillator having passive impedance network |
WO2013043334A1 (en) | 2011-09-23 | 2013-03-28 | Rambus Inc. | Electronic circuits using coupled multi-inductors |
US8779861B2 (en) * | 2011-10-19 | 2014-07-15 | Newport Media, Inc. | Multi-phase voltage controlled oscillator using capacitance degenerated single ended transconductance stage and inductance/capacitance load |
US8918070B2 (en) | 2012-05-04 | 2014-12-23 | Analog Devices, Inc. | Frequency tuning for LC circuits |
US8766712B2 (en) | 2012-05-04 | 2014-07-01 | Analog Devices, Inc. | Quality factor tuning for LC circuits |
US9197221B2 (en) * | 2012-09-16 | 2015-11-24 | Technische Universiteit Delft | Class-F CMOS oscillator incorporating differential passive network |
US8970310B2 (en) | 2012-10-10 | 2015-03-03 | Analog Devices, Inc. | Monolithic band switched coupled push-push oscillator |
DE102014102940A1 (de) | 2013-03-13 | 2014-09-18 | Analog Devices, Inc. | Oszillator mit LC-Primär- und Sekundärschwingschaltungen |
US9985682B2 (en) * | 2013-10-24 | 2018-05-29 | Qorvo Us, Inc. | Broadband isolation low-loss ISM/MB-HB tunable diplexer |
US9509256B2 (en) | 2014-07-29 | 2016-11-29 | Qualcomm Incorporated | Linearized gate capacitance in power amplifiers |
US9374036B2 (en) * | 2014-08-20 | 2016-06-21 | Short Circuit Technologies Llc | Split transformer based LC-tank digitally controlled oscillator |
CN105577118B (zh) * | 2014-11-03 | 2019-05-21 | 联咏科技股份有限公司 | 振荡器、时脉产生器以及时脉信号的产生方法 |
US9425739B1 (en) * | 2015-06-05 | 2016-08-23 | Texas Instruments Incorporated | Tunable quadrature oscillator |
US10164614B2 (en) | 2016-03-31 | 2018-12-25 | Analog Devices Global Unlimited Company | Tank circuit and frequency hopping for isolators |
JP2018011167A (ja) * | 2016-07-13 | 2018-01-18 | 日本電信電話株式会社 | 電圧制御発振器 |
WO2018023367A1 (zh) * | 2016-08-02 | 2018-02-08 | 华为技术有限公司 | 电压波形整形振荡器 |
CN111756329A (zh) * | 2016-11-04 | 2020-10-09 | 华为技术有限公司 | 双模振荡器及多相位振荡器 |
EP3579407A1 (en) * | 2018-06-06 | 2019-12-11 | NXP USA, Inc. | Differential voltage-controlled (vco) oscillator |
CN110661491B (zh) * | 2018-06-29 | 2024-05-03 | 台湾积体电路制造股份有限公司 | 电压控制振荡器、带通滤波器、以及信号产生方法 |
US10931230B2 (en) * | 2018-06-29 | 2021-02-23 | Taiwan Semiconductor Manufacturing Company Ltd. | Voltage controlled oscillator circuit, device, and method |
US10778145B2 (en) * | 2019-01-02 | 2020-09-15 | Mediatek Inc. | Magnetically pumped voltage controlled oscillator |
US11476837B2 (en) * | 2019-07-12 | 2022-10-18 | The United States Of America As Represented By The Secretary Of The Army | Active matching network design for electrically small resonant antennas |
JP7279795B2 (ja) * | 2019-08-05 | 2023-05-23 | 日本電信電話株式会社 | 電圧制御発振器 |
US11283405B2 (en) * | 2020-07-17 | 2022-03-22 | City University Of Hong Kong | Oscillator circuit |
DE102021125084A1 (de) * | 2021-09-28 | 2023-03-30 | Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Körperschaft des öffentlichen Rechts | Technik zur erweiterung des oszillatorabstimmbereichs |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7098737B2 (en) * | 2002-05-31 | 2006-08-29 | Kabushiki Kaisha Toshiba | Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier |
-
2007
- 2007-01-17 IT IT000009A patent/ITVA20070009A1/it unknown
-
2008
- 2008-01-16 US US12/015,281 patent/US7649424B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US7649424B2 (en) | 2010-01-19 |
US20080174378A1 (en) | 2008-07-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ITVA20070009A1 (it) | Metodo di regolazione della frequenza di risonanza di un circuito risonante lc e relativo circuito risonante | |
CN102055249B (zh) | 无线馈电装置、无线电力传输系统及其用在的桌子和台灯 | |
DE602006020190D1 (de) | Resonanzschaltkreis-abstimmsystem mit dynamischer impedanzanpassung | |
TW200614651A (en) | Displacement detection apparatus and method | |
WO2008117029A3 (en) | Nfc communicators | |
TW200627781A (en) | Current-mode resonant inverter circuit for discharge lamp | |
US20150077094A1 (en) | Inductive position sensing with single channel interface to multiple resonant sensors | |
CN102082469A (zh) | 无线馈电装置、无线电力接收机以及无线电力传输系统 | |
ATE461544T1 (de) | Hochfrequenz-plasmaerzeugungseinrichtung | |
GB201115184D0 (en) | Musical effects device | |
DE502007006948D1 (de) | Streifenleiter-Antenne und Antennenanordnung für ein Magnetresonanzgerät | |
WO2007024616A3 (en) | Resonator with adjustable capacitor for medical device | |
WO2008137721A3 (en) | Microcoil nmr detectors | |
ATE511227T1 (de) | Notch-antenne und drahtlose vorrichtung | |
ATE444592T1 (de) | Induktiver nährungssensor | |
WO2010097712A3 (en) | Conductivity sensor | |
ATE543153T1 (de) | Vorrichtungssysteme für funkfrequenzidentifikationen | |
ATE548886T1 (de) | Elektrisches induktionssteuersystem | |
JP2012044857A (ja) | ワイヤレス給電装置およびワイヤレス電力伝送システム | |
FI20031861A (fi) | Radiotaajuustekniikkaan perustuva anturisovitelma ja menetelmä | |
WO2009153332A3 (en) | Anti-trap protection system for moving system | |
WO2007143039A3 (en) | Oil- based mud resistivity imaging using resonant circuits | |
HK1175853A1 (en) | Asset detection apparatus and method | |
ATE453245T1 (de) | Dynamische oberschwingungsfilter für ein wechselstrom-system | |
MX360405B (es) | Transmisor acustico ajustable para uso en el interior del pozo. |