GB1117343A - Improvements in or relating to piezo-electric crystal circuit arrangements - Google Patents

Improvements in or relating to piezo-electric crystal circuit arrangements

Info

Publication number
GB1117343A
GB1117343A GB3944/66A GB394466A GB1117343A GB 1117343 A GB1117343 A GB 1117343A GB 3944/66 A GB3944/66 A GB 3944/66A GB 394466 A GB394466 A GB 394466A GB 1117343 A GB1117343 A GB 1117343A
Authority
GB
United Kingdom
Prior art keywords
piezo
crystals
frequency
relating
turnover
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
Application number
GB3944/66A
Inventor
David John Fewings
Donald Fairweather
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3944/66A priority Critical patent/GB1117343A/en
Priority to US610870A priority patent/US3463945A/en
Priority to NL6701242A priority patent/NL6701242A/xx
Priority to FR92824A priority patent/FR1516956A/en
Priority to SE1255/67A priority patent/SE333168B/en
Priority to DE19671591261 priority patent/DE1591261B1/en
Publication of GB1117343A publication Critical patent/GB1117343A/en
Expired legal-status Critical Current

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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/362—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1,117,343. Transistor oscillating circuits. MARCONI CO. Ltd. 2 Dec., 1966 [28 Jan., 1966; 30 Sept., 1966], Nos. 3944/66 and 43834/66. Heading H3T. A piezo-electric circuit arrangement is stabilized against change of frequency when the temperature changes by connecting in parallel two or more crystals each having an approximately parabolic frequency-temperature characteristic, the individual " turnover " temperatures occurring at substantially the same frequency but at different temperatures spaced apart in a temperature range to be covered. If necessary inductances L1, L2 or capacitances may be connected in series with the crystals, as shown, two in number A, B, in order to equalize their " turnover " frequencies. The Specification refers to the use of crystals of BT or RT cut.
GB3944/66A 1966-01-28 1966-01-28 Improvements in or relating to piezo-electric crystal circuit arrangements Expired GB1117343A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3944/66A GB1117343A (en) 1966-01-28 1966-01-28 Improvements in or relating to piezo-electric crystal circuit arrangements
US610870A US3463945A (en) 1966-01-28 1967-01-23 Piezo-electric crystal circuit arrangements
NL6701242A NL6701242A (en) 1966-01-28 1967-01-26
FR92824A FR1516956A (en) 1966-01-28 1967-01-27 Piezoelectric crystal circuit arrangements
SE1255/67A SE333168B (en) 1966-01-28 1967-01-27 DEVICE FOR RESTRICTING TEMPERATURE CHANGES CAUSED FREQUENCY VARIATIONS IN A COUPLING CONTAINING PIEZOELECTRIC CRYSTALS
DE19671591261 DE1591261B1 (en) 1966-01-28 1967-01-27 Temperature compensated crystal piezoelectric circuitry

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3944/66A GB1117343A (en) 1966-01-28 1966-01-28 Improvements in or relating to piezo-electric crystal circuit arrangements
GB4383466 1966-09-30

Publications (1)

Publication Number Publication Date
GB1117343A true GB1117343A (en) 1968-06-19

Family

ID=26238712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3944/66A Expired GB1117343A (en) 1966-01-28 1966-01-28 Improvements in or relating to piezo-electric crystal circuit arrangements

Country Status (5)

Country Link
US (1) US3463945A (en)
DE (1) DE1591261B1 (en)
GB (1) GB1117343A (en)
NL (1) NL6701242A (en)
SE (1) SE333168B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978432A (en) * 1972-12-29 1976-08-31 Morio Onoe Oscillator having plural piezoelectric vibrators parallel connected for temperature compensation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340855B2 (en) * 1972-04-03 1978-10-30
US4079280A (en) * 1976-06-02 1978-03-14 Hewlett-Packard Company Quartz resonator cut to compensate for static and dynamic thermal transients
US5041800A (en) * 1989-05-19 1991-08-20 Ppa Industries, Inc. Lower power oscillator with heated resonator (S), with dual mode or other temperature sensing, possibly with an insulative support structure disposed between the resonator (S) and a resonator enclosure
US5004987A (en) * 1989-05-19 1991-04-02 Piezo Crystal Company Temperature compensated crystal resonator found in a dual-mode oscillator
EP0469193A1 (en) * 1990-08-03 1992-02-05 Koninklijke Philips Electronics N.V. Temperature stabilized crystal oscillator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1915368A (en) * 1928-08-08 1933-06-27 Bell Telephone Labor Inc Oscillator
US1827196A (en) * 1929-05-01 1931-10-13 Bell Telephone Labor Inc Piezo electric oscillator
US3175168A (en) * 1958-12-15 1965-03-23 Kinsekisha Lab Ltd Crystal-controlled transistor oscillator having minimum frequency deviation with temperature variation
GB959565A (en) * 1959-11-24 1964-06-03 Cossor Ltd A C Improvements in and relating to the location and repair of faults in electrical conductors
US3152295A (en) * 1961-05-01 1964-10-06 Bendix Corp Pulsed tank circuit magneto-or electrostrictive device excitation
NL295717A (en) * 1962-07-27
US3260960A (en) * 1962-08-06 1966-07-12 Bendix Corp Oscillator with dual function isolation amplifier and frequency determining transistor
US3181045A (en) * 1963-01-07 1965-04-27 Irwin M Bruntil Tuning variable capacitor
US3349348A (en) * 1963-01-10 1967-10-24 Automatic Elect Lab Temperature-compensated circuit arrangement
US3322981A (en) * 1964-04-29 1967-05-30 Gen Electric Crystal temperature compensation
US3370255A (en) * 1965-10-18 1968-02-20 Collins Radio Co Fm system using crystal oscillator
US3297961A (en) * 1965-10-18 1967-01-10 Collins Radio Co Means for tuning crystal oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978432A (en) * 1972-12-29 1976-08-31 Morio Onoe Oscillator having plural piezoelectric vibrators parallel connected for temperature compensation

Also Published As

Publication number Publication date
SE333168B (en) 1971-03-08
US3463945A (en) 1969-08-26
DE1591261B1 (en) 1970-08-27
NL6701242A (en) 1967-07-31

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