JPS54154247A - Temperature compensating type piezoelectric oscillator - Google Patents
Temperature compensating type piezoelectric oscillatorInfo
- Publication number
- JPS54154247A JPS54154247A JP6216278A JP6216278A JPS54154247A JP S54154247 A JPS54154247 A JP S54154247A JP 6216278 A JP6216278 A JP 6216278A JP 6216278 A JP6216278 A JP 6216278A JP S54154247 A JPS54154247 A JP S54154247A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- oscillator
- converted
- temperature
- 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.)
- Granted
Links
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
PURPOSE: To ensure an easy adjustment of the temperature compensation by combining the temperature dependent voltage generating circuit and the logic circuit featuring the gate function controlled by the output voltage of the above mentioned voltage generating circuit and then controlling the frequency of the oscillator circuit with use of the logic circuit.
CONSTITUTION: The power source voltage +B is converted to the stable reference voltage through constant voltage diode 21 and then converted to the ambient temperature dependent voltage by resistance 22 and thermistor 23. This voltage is then divided by resistors 24, 25, 26 and 27 to be applied to NAND circuit 30 and 31. As the stable reference voltage is applied, the output of circuit 30 and 31 feature low levels in the case of the level of over the threshold voltage. With increment of the ambient temperature, the input voltage is converted to the stepped voltage of under the threshold voltage to be applied to one end of variable capacity diode 34, with the other end receiving application of the stable voltage. Thus, the frequency change caused by the temperature fluctuation of the voltage control voltage oscillator comprising piezoelectric oscillator and others can be compensated. The dispersion caused by the frequency temperature characteristics of the oscillator or the like can be controlled by variable resistor 36.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6216278A JPS54154247A (en) | 1978-05-26 | 1978-05-26 | Temperature compensating type piezoelectric oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6216278A JPS54154247A (en) | 1978-05-26 | 1978-05-26 | Temperature compensating type piezoelectric oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54154247A true JPS54154247A (en) | 1979-12-05 |
| JPS6227564B2 JPS6227564B2 (en) | 1987-06-16 |
Family
ID=13192136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6216278A Granted JPS54154247A (en) | 1978-05-26 | 1978-05-26 | Temperature compensating type piezoelectric oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54154247A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56111512U (en) * | 1980-01-25 | 1981-08-28 | ||
| US4325036A (en) * | 1979-06-01 | 1982-04-13 | Kabushiki Kaisha Daini Seikosha | Temperature compensating circuit |
| JPS5775008A (en) * | 1980-10-29 | 1982-05-11 | Fujitsu Ltd | Adjusting method for oscillation frequency of quartz oscillator |
| JPS6285008U (en) * | 1985-11-14 | 1987-05-30 |
-
1978
- 1978-05-26 JP JP6216278A patent/JPS54154247A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4325036A (en) * | 1979-06-01 | 1982-04-13 | Kabushiki Kaisha Daini Seikosha | Temperature compensating circuit |
| JPS56111512U (en) * | 1980-01-25 | 1981-08-28 | ||
| JPS6223123Y2 (en) * | 1980-01-25 | 1987-06-12 | ||
| JPS5775008A (en) * | 1980-10-29 | 1982-05-11 | Fujitsu Ltd | Adjusting method for oscillation frequency of quartz oscillator |
| JPS6285008U (en) * | 1985-11-14 | 1987-05-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6227564B2 (en) | 1987-06-16 |
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