CN216531263U - High-frequency wide-temperature constant-temperature crystal oscillator - Google Patents
High-frequency wide-temperature constant-temperature crystal oscillator Download PDFInfo
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- CN216531263U CN216531263U CN202122715563.7U CN202122715563U CN216531263U CN 216531263 U CN216531263 U CN 216531263U CN 202122715563 U CN202122715563 U CN 202122715563U CN 216531263 U CN216531263 U CN 216531263U
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Abstract
The utility model provides a high-frequency wide-temperature constant-temperature crystal oscillator, which comprises a circuit substrate, and a crystal oscillator, a heating element, a temperature control circuit, a compensation feedback circuit and an LDO voltage stabilizer which are arranged on the circuit substrate; the heating end of the heating element is in close contact with the crystal oscillator, the temperature control circuit and the compensation feedback circuit are arranged on one side of the crystal oscillator, and the LDO voltage stabilizer is arranged on the other side of the crystal oscillator; the first output end of the temperature control circuit is connected with the control end of the heating element, the first output end of the temperature control circuit is connected with the input end of the compensation feedback circuit, the first output end of the compensation feedback circuit is connected with the compensation control end of the heating element, the detection end of the compensation feedback circuit is connected with the heating element, and the second output end of the compensation feedback circuit is connected with the input end of the temperature control circuit.
Description
Technical Field
The utility model relates to the field of electronic devices, in particular to a high-frequency wide-temperature constant-temperature crystal oscillator.
Background
With the development requirements of the times, crystal oscillators are used more and more, one crystal oscillator is used in a mobile signal station, signals are unstable due to vibration in the moving process, and good information communication between transmissions cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-frequency wide-temperature constant-temperature crystal oscillator.
The utility model adopts the following technical scheme for realizing the purpose:
the utility model provides a high-frequency wide-temperature constant-temperature crystal oscillator, which comprises a circuit substrate, and a crystal oscillator, a heating element, a temperature control circuit, a compensation feedback circuit and an LDO voltage stabilizer which are arranged on the circuit substrate;
the heating end of the heating element is in close contact with the crystal oscillator, the temperature control circuit and the compensation feedback circuit are arranged on one side of the crystal oscillator, and the LDO voltage stabilizer is arranged on the other side of the crystal oscillator;
the LDO voltage stabilizer respectively supplies power to the crystal oscillator, the heating element, the temperature control circuit and the compensation feedback circuit;
the first output end of the temperature control circuit is connected with the control end of the heating element, the first output end of the temperature control circuit is connected with the input end of the compensation feedback circuit, the first output end of the compensation feedback circuit is connected with the compensation control end of the heating element, the detection end of the compensation feedback circuit is connected with the heating element, and the second output end of the compensation feedback circuit is connected with the input end of the temperature control circuit.
In an embodiment of the utility model, the high-frequency wide-temperature constant temperature crystal oscillator further comprises a protective shell;
and the crystal oscillator, the heating element, the temperature control circuit, the compensation feedback circuit and the LDO voltage stabilizer on the circuit substrate are all arranged in the protective shell.
In an embodiment of the utility model, the heating element comprises a linear heating power tube.
In an embodiment of the present invention, the compensation feedback circuit includes a thermistor, and a detection end of the thermistor is tightly attached to the heating element.
The utility model has the beneficial effects that:
the high-frequency wide-temperature constant-temperature crystal oscillator provided by the utility model can effectively improve the temperature index of the crystal oscillator, so that the crystal oscillator can work in a wider temperature range.
Drawings
FIG. 1 is a schematic diagram of a high-frequency wide-temperature oven controlled crystal oscillator according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a partial circuit structure of a high-frequency wide-temperature oven controlled crystal oscillator according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein the exemplary embodiments and descriptions are only used for explaining the present invention, but not for limiting the present invention.
It should be noted that, in the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 and fig. 2, in an embodiment of the present invention, a high-frequency wide-temperature oven controlled crystal oscillator is provided, which includes a circuit substrate 1, and a crystal oscillator 2, a heating element 3, a temperature control circuit 4, a compensation feedback circuit 5 and an LDO regulator 6 disposed on the circuit substrate 1;
the heating end of the heating element 3 is in close contact with the crystal oscillator 2, the temperature control circuit 4 and the compensation feedback circuit 5 are arranged on one side of the crystal oscillator 2, and the LDO regulator 6 is arranged on the other side of the crystal oscillator 2;
the LDO voltage stabilizer 6 respectively supplies power to the crystal oscillator 2, the heating element 3, the temperature control circuit 4 and the compensation feedback circuit 5;
the first output of temperature control circuit 4 with heating element 3's control end links to each other, the first output of temperature control circuit 4 with compensation feedback circuit 5's input links to each other, compensation feedback circuit's first output with heating element 3's compensation control end links to each other, compensation feedback circuit's sense terminal with heating element 3 links to each other, compensation feedback circuit's second output with temperature control circuit 4's input links to each other.
In an embodiment of the utility model, the high-frequency wide-temperature constant temperature crystal oscillator further comprises a protective shell;
and the crystal oscillator 2, the heating element 3, the temperature control circuit 4, the compensation feedback circuit 5 and the LDO voltage stabilizer 6 on the circuit substrate 1 are arranged in the protective shell.
In an embodiment of the utility model, the heating element 3 comprises a linear heating power tube.
In an embodiment of the present invention, the compensation feedback circuit includes a thermistor, and a detection end of the thermistor is tightly attached to the heating element 3.
It should be understood that the above examples are only for clearly showing the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. It will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (4)
1. A high-frequency wide-temperature constant-temperature crystal oscillator is characterized by comprising a circuit substrate, a crystal oscillator, a heating element, a temperature control circuit, a compensation feedback circuit and an LDO voltage stabilizer, wherein the crystal oscillator, the heating element, the temperature control circuit, the compensation feedback circuit and the LDO voltage stabilizer are arranged on the circuit substrate;
the heating end of the heating element is in close contact with the crystal oscillator, the temperature control circuit and the compensation feedback circuit are arranged on one side of the crystal oscillator, and the LDO voltage stabilizer is arranged on the other side of the crystal oscillator;
the LDO voltage stabilizer respectively supplies power to the crystal oscillator, the heating element, the temperature control circuit and the compensation feedback circuit;
the first output end of the temperature control circuit is connected with the control end of the heating element, the first output end of the temperature control circuit is connected with the input end of the compensation feedback circuit, the first output end of the compensation feedback circuit is connected with the compensation control end of the heating element, the detection end of the compensation feedback circuit is connected with the heating element, and the second output end of the compensation feedback circuit is connected with the input end of the temperature control circuit.
2. A high frequency wide temperature oven controlled crystal oscillator as claimed in claim 1, further comprising a protective case;
and the crystal oscillator, the heating element, the temperature control circuit, the compensation feedback circuit and the LDO voltage stabilizer on the circuit substrate are all arranged in the protective shell.
3. A high frequency wide temperature oven controlled crystal oscillator as claimed in claim 1, characterized in that the heating element comprises a linear heating power tube.
4. A high frequency wide temperature oven controlled crystal oscillator as claimed in claim 1, characterized in that said compensation feedback circuit comprises a thermistor, the detection end of which is in close contact with said heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122715563.7U CN216531263U (en) | 2021-11-08 | 2021-11-08 | High-frequency wide-temperature constant-temperature crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122715563.7U CN216531263U (en) | 2021-11-08 | 2021-11-08 | High-frequency wide-temperature constant-temperature crystal oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216531263U true CN216531263U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122715563.7U Active CN216531263U (en) | 2021-11-08 | 2021-11-08 | High-frequency wide-temperature constant-temperature crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216531263U (en) |
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2021
- 2021-11-08 CN CN202122715563.7U patent/CN216531263U/en active Active
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