GB1117343A - Improvements in or relating to piezo-electric crystal circuit arrangements - Google Patents
Improvements in or relating to piezo-electric crystal circuit arrangementsInfo
- 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
Links
- 239000013078 crystal Substances 0.000 title abstract 4
- 230000007306 turnover Effects 0.000 abstract 2
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.
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)
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)
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)
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 |
-
1966
- 1966-01-28 GB GB3944/66A patent/GB1117343A/en not_active Expired
-
1967
- 1967-01-23 US US610870A patent/US3463945A/en not_active Expired - Lifetime
- 1967-01-26 NL NL6701242A patent/NL6701242A/xx unknown
- 1967-01-27 DE DE19671591261 patent/DE1591261B1/en active Pending
- 1967-01-27 SE SE1255/67A patent/SE333168B/en unknown
Cited By (1)
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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