JPS6285008U - - Google Patents
Info
- Publication number
- JPS6285008U JPS6285008U JP17571585U JP17571585U JPS6285008U JP S6285008 U JPS6285008 U JP S6285008U JP 17571585 U JP17571585 U JP 17571585U JP 17571585 U JP17571585 U JP 17571585U JP S6285008 U JPS6285008 U JP S6285008U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- temperature
- piezoelectric oscillator
- ambient temperature
- changes
- 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
- 230000001419 dependent effect Effects 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 1
Description
第１図は従来の温度補償型圧電発振器のブロツ
ク図、第２図は圧電発振子の発振周波数―温度特
性を示す図、第３図は第２図の特性を補償するの
に必要な制御電圧―温度特性を示す図、第４図は
第１図の制御電圧変換部２００の構成の一例を示
す回路図、第５図は本考案の一実施例を示す回路
図、第６図は第５図の動作を説明するために用い
た周波数変化―温度特性図、第７図は第６図の発
振器によつて得られた周波数変化率―周囲温度特
性を示す図、第８図は本考案による他の実施例を
示す回路図である。
１００……基準電圧発生部、４００……圧電発
振回路、５００……温度依存電圧発生部、６００
……論理回路、３０，３１……ナンドゲート、４
３……可変容量ダイオード、３８……水晶発振子
。
Figure 1 is a block diagram of a conventional temperature compensated piezoelectric oscillator, Figure 2 is a diagram showing the oscillation frequency vs. temperature characteristics of the piezoelectric oscillator, and Figure 3 is the control voltage required to compensate for the characteristics shown in Figure 2. - A diagram showing temperature characteristics, FIG. 4 is a circuit diagram showing an example of the configuration of the control voltage converter 200 shown in FIG. 1, FIG. 5 is a circuit diagram showing one embodiment of the present invention, and FIG. Figure 7 is a diagram showing the frequency change rate vs. ambient temperature characteristic obtained by the oscillator shown in Figure 6. Figure 8 is a diagram showing the frequency change rate vs. ambient temperature characteristic used to explain the operation of the figure. FIG. 7 is a circuit diagram showing another embodiment. 100...Reference voltage generation section, 400...Piezoelectric oscillation circuit, 500...Temperature dependent voltage generation section, 600
...Logic circuit, 30,31...Nand gate, 4
3...variable capacitance diode, 38...crystal oscillator.
Claims (1)
回路の周囲温度変化による発振周波数変化を補償
する温度補償回路とから構成された温度補償型圧
電発振器において、上記温度補償回路が、感熱抵
抗素子と固定抵抗素子とを有し基準電圧を入力と
して周囲温度上昇に追従して電圧値が増加するよ
うな周囲温度依存電圧を出力する温度依存電圧発
生部と、論理素子を有し上記温度依存電圧発生部
からの周囲温度依存電圧が増加して予め設定され
たある周囲温度に対応する電圧をよこぎるととも
に上記論理素子の出力電圧が変化し、前記圧電発
振子との間に持続された電圧制御型可変量素子に
印加されることを特徴とする温度補償型圧電発振
器。 In a temperature-compensated piezoelectric oscillator that includes a piezoelectric oscillator having a piezoelectric oscillator and a temperature compensation circuit that compensates for changes in oscillation frequency caused by changes in ambient temperature of the piezoelectric oscillator, the temperature compensation circuit is fixed to a heat-sensitive resistance element. a temperature-dependent voltage generation section having a resistance element and outputting an ambient temperature-dependent voltage whose voltage value increases in accordance with a rise in ambient temperature by inputting a reference voltage; and the temperature-dependent voltage generation section having a logic element. As the ambient temperature dependent voltage increases and crosses a voltage corresponding to a certain preset ambient temperature, the output voltage of the logic element changes, and the voltage controlled variable voltage maintained between the piezoelectric oscillator and the piezoelectric oscillator increases. A temperature compensated piezoelectric oscillator characterized in that a voltage is applied to a quantum element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17571585U JPS6285008U (en) | 1985-11-14 | 1985-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17571585U JPS6285008U (en) | 1985-11-14 | 1985-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6285008U true JPS6285008U (en) | 1987-05-30 |
Family
ID=31115290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17571585U Pending JPS6285008U (en) | 1985-11-14 | 1985-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6285008U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54154247A (en) * | 1978-05-26 | 1979-12-05 | Nec Corp | Temperature compensating type piezoelectric oscillator |
| JPS6029216B2 (en) * | 1976-09-07 | 1985-07-09 | モンサント・コンパニ− | Wafer packing equipment |
-
1985
- 1985-11-14 JP JP17571585U patent/JPS6285008U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029216B2 (en) * | 1976-09-07 | 1985-07-09 | モンサント・コンパニ− | Wafer packing equipment |
| JPS54154247A (en) * | 1978-05-26 | 1979-12-05 | Nec Corp | Temperature compensating type piezoelectric oscillator |
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