JPS5555604A - Piezoelectric oscillator of temperature compensation type - Google Patents
Piezoelectric oscillator of temperature compensation typeInfo
- Publication number
- JPS5555604A JPS5555604A JP12926078A JP12926078A JPS5555604A JP S5555604 A JPS5555604 A JP S5555604A JP 12926078 A JP12926078 A JP 12926078A JP 12926078 A JP12926078 A JP 12926078A JP S5555604 A JPS5555604 A JP S5555604A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- crystal oscillator
- change
- impedance
- diode
- 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.)
- Pending
Links
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE: To perform temprature compensation for the crystal oscillator with a simple constitution, by increasing the oscillation frequency through higher impedance of the diode when the temperature is decreased and by making dependent the change in the oscillation frequency on the frequeny on the frequency change in the crystal oscillator, when the temperature rises.
CONSTITUTION: When the temperature decreases from a given temperature, the resistance of the thermister 1 is gradually increased, the voltage to ground of the junction point 26 is also gradually lowered to increase the impedance of the diode 2. The load capacitance of the crystal oscillator 19 is changed by capacitance change in the capacitor 3 through the impedance change to increase the oscillation frequency. On the other hand, when the temperature is increased than a given temperature, the resistance of the thermister 1 is lowered, but since the impedance of the diode 2 is saturated, and the frequency change in a given temperature range is dependent on the frequency change in the crystal oscillator 19. Accordingly, the temperature compensation of crystal oscillator can be made with a simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12926078A JPS5555604A (en) | 1978-10-20 | 1978-10-20 | Piezoelectric oscillator of temperature compensation type |
| US06/084,693 US4297655A (en) | 1978-10-20 | 1979-10-15 | Temperature compensated crystal oscillator |
| AU51865/79A AU525194B2 (en) | 1978-10-20 | 1979-10-17 | Crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12926078A JPS5555604A (en) | 1978-10-20 | 1978-10-20 | Piezoelectric oscillator of temperature compensation type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5555604A true JPS5555604A (en) | 1980-04-23 |
Family
ID=15005161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12926078A Pending JPS5555604A (en) | 1978-10-20 | 1978-10-20 | Piezoelectric oscillator of temperature compensation type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5555604A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129004A (en) * | 1981-02-02 | 1982-08-10 | Nec Corp | Piezoelectric oscillator |
| JPS62280653A (en) * | 1986-05-28 | 1987-12-05 | Seiko Electronic Components Ltd | Frequency and temperature compensating circuit for crystal resonator |
| JP2008113144A (en) * | 2006-10-30 | 2008-05-15 | Nippon Dempa Kogyo Co Ltd | Quartz oscillator |
-
1978
- 1978-10-20 JP JP12926078A patent/JPS5555604A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129004A (en) * | 1981-02-02 | 1982-08-10 | Nec Corp | Piezoelectric oscillator |
| JPS62280653A (en) * | 1986-05-28 | 1987-12-05 | Seiko Electronic Components Ltd | Frequency and temperature compensating circuit for crystal resonator |
| JP2008113144A (en) * | 2006-10-30 | 2008-05-15 | Nippon Dempa Kogyo Co Ltd | Quartz oscillator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE802395L (en) | Bias voltage generator | |
| JPS5555604A (en) | Piezoelectric oscillator of temperature compensation type | |
| JPS5528677A (en) | Frequency conversion circuit | |
| EP0009416A3 (en) | Temperature sensitive relaxation oscillator | |
| JPS55125703A (en) | Voltage controlled crystal oscillator | |
| JPS55125702A (en) | Crystal oscillator of temperature compensation | |
| JPS5579506A (en) | Oscillator | |
| JPS5541026A (en) | Crystal oscillator of temperature compensation | |
| JPS551747A (en) | Crystal oscillator circuit | |
| JPS56107606A (en) | Voltage control type piezoelectric oscillator | |
| JPS54102952A (en) | Local oscillator circuit of uhf tuner | |
| JPS6486701A (en) | Voltage controlled crystal oscillating device | |
| JPS5564405A (en) | Receiver circuit with temperature compensating function | |
| JPS5673906A (en) | Microwave oscillator | |
| JPS6434003A (en) | Oscillator equipped with piezoelectric resonator and logic circuit | |
| JPS5582510A (en) | Piezoelectric oscillator of temperature compensation type | |
| JPS5357731A (en) | Voltage-contro-type oscillation circuit | |
| JPS5683102A (en) | Temperature compensation type piezoelectric oscillator | |
| JPS5590106A (en) | Phase modulator | |
| JPS5575337A (en) | Oscillator | |
| JPS54141550A (en) | Crystal oscillation circuit of temperature compensation type | |
| JPS54152492A (en) | Piezoelectric vibrator | |
| JPS5567690A (en) | Electronic watch | |
| JPS54112153A (en) | Frequency modulator | |
| JPS55146058A (en) | Measuring unit of capacitance-resistance at high frequency |