GB2337382B - Voltage controlled oscillator - Google Patents

Voltage controlled oscillator

Info

Publication number
GB2337382B
GB2337382B GB9810524A GB9810524A GB2337382B GB 2337382 B GB2337382 B GB 2337382B GB 9810524 A GB9810524 A GB 9810524A GB 9810524 A GB9810524 A GB 9810524A GB 2337382 B GB2337382 B GB 2337382B
Authority
GB
United Kingdom
Prior art keywords
controlled oscillator
voltage controlled
voltage
oscillator
controlled
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
GB9810524A
Other versions
GB2337382A (en
GB9810524D0 (en
Inventor
Fiona Farrer
Stephen David Harris
Ian Derek Cairns
Adrian Bruce Nickerson
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.)
Motorola Solutions UK Ltd
Original Assignee
Motorola 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 Motorola Ltd filed Critical Motorola Ltd
Priority to GB9810524A priority Critical patent/GB2337382B/en
Publication of GB9810524D0 publication Critical patent/GB9810524D0/en
Publication of GB2337382A publication Critical patent/GB2337382A/en
Application granted granted Critical
Publication of GB2337382B publication Critical patent/GB2337382B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • 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
    • H03B5/1243—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 voltage variable capacitance diodes
    • 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
    • H03B5/1293—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 having means for achieving a desired tuning characteristic, e.g. linearising the frequency characteristic across the tuning voltage range
    • 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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
GB9810524A 1998-05-16 1998-05-16 Voltage controlled oscillator Expired - Fee Related GB2337382B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9810524A GB2337382B (en) 1998-05-16 1998-05-16 Voltage controlled oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9810524A GB2337382B (en) 1998-05-16 1998-05-16 Voltage controlled oscillator

Publications (3)

Publication Number Publication Date
GB9810524D0 GB9810524D0 (en) 1998-07-15
GB2337382A GB2337382A (en) 1999-11-17
GB2337382B true GB2337382B (en) 2000-12-13

Family

ID=10832172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9810524A Expired - Fee Related GB2337382B (en) 1998-05-16 1998-05-16 Voltage controlled oscillator

Country Status (1)

Country Link
GB (1) GB2337382B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1193875B1 (en) * 2000-09-15 2005-11-09 Alcatel Voltage-controlled oscillator with automatic center frequency calibration
EP1698056A1 (en) 2003-12-19 2006-09-06 Philips Intellectual Property & Standards GmbH Method and arrangement for interference compensation in a voltage-controlled frequency generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120478A (en) * 1982-04-22 1983-11-30 Standard Telephones Cables Ltd Voltage controlled oscillator
GB2215929A (en) * 1988-02-10 1989-09-27 Alps Electric Co Ltd Electronic tuners
GB2294830A (en) * 1993-08-13 1996-05-08 Nec Corp Frequency synthesizer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120478A (en) * 1982-04-22 1983-11-30 Standard Telephones Cables Ltd Voltage controlled oscillator
GB2215929A (en) * 1988-02-10 1989-09-27 Alps Electric Co Ltd Electronic tuners
GB2294830A (en) * 1993-08-13 1996-05-08 Nec Corp Frequency synthesizer

Also Published As

Publication number Publication date
GB2337382A (en) 1999-11-17
GB9810524D0 (en) 1998-07-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020516