GB1243127A - Oscillator circuit including a quartz crystal operating in parallel resonance - Google Patents
Oscillator circuit including a quartz crystal operating in parallel resonanceInfo
- Publication number
- GB1243127A GB1243127A GB5185169A GB5185169A GB1243127A GB 1243127 A GB1243127 A GB 1243127A GB 5185169 A GB5185169 A GB 5185169A GB 5185169 A GB5185169 A GB 5185169A GB 1243127 A GB1243127 A GB 1243127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- insulated gate
- parallel resonance
- quartz crystal
- oct
- 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 3
- 239000010453 quartz Substances 0.000 title abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910000474 mercury oxide Inorganic materials 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 229910001923 silver oxide Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
-
- 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
- H03B5/364—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 comprising field effect transistors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Abstract
1,243,127. F.E.T. crystal oscillators. SOC. SUISSE POUR L'INDUSTRIE HORLOGERE S.A. 22 Oct., 1969 [23 Oct., 1968], No. 51851/69. Heading H3T. [Also in Division G3] An oscillator has a quartz crystal Q operating in parallel resonance, an insulated gate F.E.T. T 1 as the active component of the oscillator, a further insulated gate F.E.T. T 2 in series with F.E.T. T 1 and a voltage source R 3 , C 3 , T 3 for controlling F.E.T. T 2 by a direct voltage sufficient to operate the F.E.T. T 2 in current saturation. The voltage controlling T 2 may be from a tapping on a potential divider R 3 (R 4 , Fig. 2, not shown), or may be controlled by an insulated gate F.E.T. T 3 which acts to decrease the current through T 2 with increasing output amplitude so as to stabilize the oscillator. T 3 acts to rectify the output signal derived from C 3 and C 4 , which is clamped by diode D. Transistor T 3 together with R 3 and C 5 provide a direct voltage control signal to T 2 . The frequency of the oscillator may be adjusted by trimmer Tr and transistors T 1 , T 2 , T 3 , capacitors C 1 -C 5 and diode D may be an integrated circuit. The supply U may be a mercury or silver oxide call and. the oscillator may be used to drive an electromechanical converter of a wrist-watch via a series of divider stages.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1582668A CH504039A (en) | 1968-10-23 | 1968-10-23 | Quartz oscillator circuit, parallel resonance, for time measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1243127A true GB1243127A (en) | 1971-08-18 |
Family
ID=4412275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5185169A Expired GB1243127A (en) | 1968-10-23 | 1969-10-22 | Oscillator circuit including a quartz crystal operating in parallel resonance |
Country Status (6)
| Country | Link |
|---|---|
| CH (2) | CH504039A (en) |
| DE (1) | DE1954068B2 (en) |
| FR (1) | FR2021376B1 (en) |
| GB (1) | GB1243127A (en) |
| NL (1) | NL6915923A (en) |
| SE (1) | SE339951B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3725822A (en) * | 1971-05-20 | 1973-04-03 | Rca Corp | Phase shift oscillators using insulated-gate field-effect transistors |
| US3727139A (en) * | 1971-08-10 | 1973-04-10 | Philco Ford Corp | Voltage supply for voltage variable capacitor diode tuning |
| CH580837B5 (en) * | 1974-04-01 | 1976-10-15 | Battelle Memorial Institute | |
| CH580358A5 (en) * | 1974-09-20 | 1976-09-30 | Centre Electron Horloger | |
| DE2641501C3 (en) * | 1976-09-15 | 1986-03-27 | Siemens AG, 1000 Berlin und 8000 München | Tunable oscillator with high frequency accuracy and constancy |
| DE2714151C2 (en) * | 1977-03-30 | 1984-03-08 | Kabushiki Kaisha Meidensha, Tokyo | Crystal oscillator with low power dissipation |
| CH631048B (en) * | 1979-07-13 | Ebauches Electroniques Sa | CONVERTER FROM ALTERNATIVE TO CONTINUOUS VOLTAGE. | |
| JPS59205A (en) * | 1982-05-26 | 1984-01-05 | Fujitsu Ltd | Oscillating circuit having gain correcting function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132515A (en) * | 1966-01-31 | 1968-11-06 | Edwards High Vacuum Int Ltd | Transistorised oscillators |
| FR1504681A (en) * | 1966-10-21 | 1967-12-08 | Cit Alcatel | High stability field effect transistor oscillator |
-
1968
- 1968-10-23 CH CH1582668A patent/CH504039A/en not_active IP Right Cessation
- 1968-10-23 CH CH1582668D patent/CH1582668A4/xx unknown
-
1969
- 1969-10-22 SE SE1447569A patent/SE339951B/xx unknown
- 1969-10-22 FR FR6936276A patent/FR2021376B1/fr not_active Expired
- 1969-10-22 NL NL6915923A patent/NL6915923A/xx unknown
- 1969-10-22 GB GB5185169A patent/GB1243127A/en not_active Expired
- 1969-10-23 DE DE19691954068 patent/DE1954068B2/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6915923A (en) | 1970-04-27 |
| FR2021376A1 (en) | 1970-07-24 |
| SE339951B (en) | 1971-11-01 |
| CH1582668A4 (en) | 1970-11-13 |
| DE1954068A1 (en) | 1970-05-14 |
| FR2021376B1 (en) | 1973-11-16 |
| DE1954068B2 (en) | 1973-11-15 |
| CH504039A (en) | 1970-11-13 |
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