JPS60121823A - Temperature compensating circuit of oscillator - Google Patents
Temperature compensating circuit of oscillatorInfo
- Publication number
- JPS60121823A JPS60121823A JP22928883A JP22928883A JPS60121823A JP S60121823 A JPS60121823 A JP S60121823A JP 22928883 A JP22928883 A JP 22928883A JP 22928883 A JP22928883 A JP 22928883A JP S60121823 A JPS60121823 A JP S60121823A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- oscillator
- frequency
- oscillation frequency
- source voltage
- 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
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 12
- 230000010355 oscillation Effects 0.000 abstract description 12
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008385 outer phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
- H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes
- H03L1/025—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes and a memory for digitally storing correction values
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
【発明の詳細な説明】 本発明ｄ：発発振器温度補償回路に関するものである。[Detailed description of the invention] Present invention d: relates to an oscillator temperature compensation circuit.
Ｋ来、例えば水晶発振器の温度補償を行なうものとして
、複数の負荷各部をそれぞれスイッチング回路全弁し７
て水晶据動子に接続してあり、温度に応じてスイッチン
グ回路を・選択的に動作させて発振周波数″Ｉｒ：調整
するものがある。ところがこれによると外付は部品点数
が多くなる欠点がある。For example, in order to compensate for the temperature of a crystal oscillator, a switching circuit for each of multiple loads is used.
There is a device that is connected to a crystal shifter and selectively operates a switching circuit depending on the temperature to adjust the oscillation frequency (Ir).However, this method has the disadvantage of requiring a large number of components when externally connected. be.
そこでノド発明は発振器の電圧−周披数特性金利用して
温度補償全行々うことにより隠ｄ）て簡７１１な構成で
すむようにしたものである。Therefore, the invention of Node is to perform all temperature compensation by utilizing the voltage-frequency characteristic of the oscillator, thereby achieving a hidden and simple configuration.
以下本発明の一実施例ケ図面にノ１℃ついて説明する。Hereinafter, one embodiment of the present invention will be explained at 1°C with reference to the drawings.
第１図において、１は水晶発」取器で、その発振周波数
は第２図のように電源電圧に応じてほぼｎ線内に変動す
ることが知られている。従来ｄ、この周波数変動の大き
いものは不良品と見做さｈ、極力これ金小さくすべく努
力がはられれてきたのである。２は分周器、３は時旧表
示の駆動回路である。４は温度センサ、５はＡ／Ｉ）
変拗器で、時計の使用温度範囲も複数の領域に分割し、
各ＩＪ負域において予め決められたデータ會生じる。６
ばＤ／Ａ 変換器で、上記データ全水晶発振器の箱１諒
電圧に変換するものである。In FIG. 1, reference numeral 1 denotes a crystal oscillator, and it is known that the oscillation frequency of the crystal oscillator 1 varies within the n-line depending on the power supply voltage, as shown in FIG. In the past, products with large frequency fluctuations were regarded as defective products, and efforts were made to reduce this as much as possible. 2 is a frequency divider, and 3 is a driving circuit for displaying the time. 4 is a temperature sensor, 5 is A/I)
With the transformer, the operating temperature range of the watch is divided into multiple regions,
A predetermined data association occurs in each IJ negative region. 6
For example, a D/A converter is used to convert the above data into a box voltage of an all-crystal oscillator.
つぎに動作について説明する。Next, the operation will be explained.
本件では、水晶発振器１は第５図のような２次の温度係
数を呈するものを用いており、温度Ｔ。In this case, the crystal oscillator 1 exhibiting a quadratic temperature coefficient as shown in FIG. 5 is used, and the crystal oscillator 1 has a temperature T.
Ｑこおいて周波数がピークとなり、温度の土夕４および
下降に伴って灯称的に周波数か減少する特性盆景する。The frequency peaks at Q, and as the temperature decreases, the frequency decreases.
一方、温度センサ４の出力はＡ／Ｄ 変換器５でデータ
に変便され、このデータがＤ／Ａ 変佛器６で水晶発振
器１の電源電圧に変換される。この電圧は第４図のよう
に、温度Ｔｏｉ含む領域Ｔ１ に訃いて最低となり、そ
れ走り上昇および下降するにｒ’ｉ’って対称的に領域
Ｔｚ、 ’ｒ３． Ｔ４ において順欠段階的に上昇し
ていくように設定しである。On the other hand, the output of the temperature sensor 4 is converted into data by an A/D converter 5, and this data is converted into a power supply voltage for the crystal oscillator 1 by a D/A converter 6. As shown in FIG. 4, this voltage reaches its lowest level in the region T1 including the temperature Toi, and as it rises and falls, it symmetrically changes to the regions Tz, 'r3. It is set so that it increases step by step at T4.
水晶発振器１（社）第２図のように電源電圧の上昇に伴
って発振周波数が増大するものであり、これＫよって、
温度の変動に伴う発振＋ｉ！、’１波数の低下を相殺し
、第５図のように発振周波数の温度補償を行なうもので
ある。As shown in Figure 2 of Crystal Oscillator 1 Co., Ltd., the oscillation frequency increases as the power supply voltage increases, and therefore,
Oscillation due to temperature fluctuation +i! , '1, and compensates for the temperature of the oscillation frequency as shown in FIG.
なお発振器としてＴＪ水よ、−発振器に限るものではな
く、ＣＲ発振器、ＴＪ ｃ発振器等、電源電圧に応し〕
で発振周波数が変化するものであれば何にでも適用でき
る。Note that the oscillator is not limited to the TJ water oscillator, but can also be used as a CR oscillator, TJ c oscillator, etc. depending on the power supply voltage.
It can be applied to anything that changes the oscillation frequency.
以上のように本発明によれば、発振周波数の電圧特性を
利用して温度補償ケ行なうよ・うにしたので、極めて簡
単な構成ですみ、特に外相は素子が少なくてもすむもの
である。As described above, according to the present invention, since temperature compensation is performed using the voltage characteristics of the oscillation frequency, the configuration can be extremely simple, and in particular, the number of elements for the outer phase can be reduced.
第１図は本発明の一実施例を示したブロック図、第２図
は発Ｊ辰周波数の電圧特性全示した！ｔＪイ（４１ユ図
、第６図は本例における発振器の発振周波数の温度特注
を示した特注図、第４図Ｈ各温度碩域における発振器の
電飾電圧欠示した説明図、第５図は温度袖偵後の発掘周
阪数の温度特性を示したｗ性図である。
１・・・・水晶発振器、 ４・・・・・・温度センサ、
５・・・・・Ａ／１〕 裂捌器、 ６・・・・・Ｄ／Ａ
変換器、以 上
ｌＪ：１Ｍ１１人 株式会社 植 工 舎代理人 弁理
士 最 上 務
第１図
第２図Fig. 1 is a block diagram showing an embodiment of the present invention, and Fig. 2 shows the complete voltage characteristics of the oscillating frequency! tJ I (Figure 41, Figure 6 is a custom diagram showing the temperature customization of the oscillation frequency of the oscillator in this example, Figure 4H is an explanatory diagram showing the lack of illumination voltage of the oscillator in each temperature range, Figure 5 is a temperature characteristic diagram showing the temperature characteristics of the excavated frequency after the temperature survey. 1...Crystal oscillator, 4...Temperature sensor,
5...A/1] Cracker, 6...D/A
Converter, above 1J: 1M 11 people Uekosha Co., Ltd. Agent Patent attorney Tsutomu Mogami Figure 1 Figure 2
Claims (1)
振器と、温度センサと、この温度センサの出力によって
上記発振器の電訃電圧全制約する制御回路とからなる発
振器の温度補償回路。An oscillator temperature compensation circuit comprising an oscillator whose excavation frequency changes with pressure fluctuations, a temperature sensor, and a control circuit that completely limits the voltage of the oscillator based on the output of the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22928883A JPS60121823A (en) | 1983-12-05 | 1983-12-05 | Temperature compensating circuit of oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22928883A JPS60121823A (en) | 1983-12-05 | 1983-12-05 | Temperature compensating circuit of oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60121823A true JPS60121823A (en) | 1985-06-29 |
Family
ID=16889768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22928883A Pending JPS60121823A (en) | 1983-12-05 | 1983-12-05 | Temperature compensating circuit of oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60121823A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166393A (en) * | 2004-11-10 | 2006-06-22 | Seiko Epson Corp | Temperature compensated oscillation circuit comprising temperature compensation circuit, and electronic apparatus |
| JP2007259345A (en) * | 2006-03-24 | 2007-10-04 | Nippon Dempa Kogyo Co Ltd | Thermostatic crystal oscillator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171763A (en) * | 1974-12-19 | 1976-06-21 | Citizen Watch Co Ltd | SUISHOHATSUSHINKAIRO |
| JPS5267240A (en) * | 1975-12-01 | 1977-06-03 | Citizen Watch Co Ltd | Temperature-compensated electronic watch |
-
1983
- 1983-12-05 JP JP22928883A patent/JPS60121823A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171763A (en) * | 1974-12-19 | 1976-06-21 | Citizen Watch Co Ltd | SUISHOHATSUSHINKAIRO |
| JPS5267240A (en) * | 1975-12-01 | 1977-06-03 | Citizen Watch Co Ltd | Temperature-compensated electronic watch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166393A (en) * | 2004-11-10 | 2006-06-22 | Seiko Epson Corp | Temperature compensated oscillation circuit comprising temperature compensation circuit, and electronic apparatus |
| JP2007259345A (en) * | 2006-03-24 | 2007-10-04 | Nippon Dempa Kogyo Co Ltd | Thermostatic crystal oscillator |
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