CN219164531U - Ultrashort wave broadband power amplifier with over-temperature protection function - Google Patents
Ultrashort wave broadband power amplifier with over-temperature protection function Download PDFInfo
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- CN219164531U CN219164531U CN202222558812.0U CN202222558812U CN219164531U CN 219164531 U CN219164531 U CN 219164531U CN 202222558812 U CN202222558812 U CN 202222558812U CN 219164531 U CN219164531 U CN 219164531U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model belongs to the technical field of amplifiers, and particularly relates to an ultra-short wave broadband power amplifier with an over-temperature protection function; the power supply circuit is connected with the front-stage power amplification circuit, the pushing-stage power amplification circuit and the final-stage power amplification circuit in sequence, and is connected with the front-stage power amplification circuit, the pushing-stage power amplification circuit and the final-stage power amplification circuit, radio frequency signals are sent into the front-stage power amplification circuit to be amplified, and then are further amplified by the pushing-stage power amplification circuit, and after the required power input by the final-stage power amplification circuit is reached, the radio frequency signals are sent into the final-stage power amplification circuit to be amplified, and are emitted and output by an external antenna; the temperature protection circuit is connected with the power supply circuit, and the power supply circuit is connected with the front-stage power amplification circuit, the push-stage power amplification circuit and the final-stage power amplification circuit; the ultra-short wave broadband power amplifier with the over-temperature protection function protects the ultra-short wave broadband power amplifier when the temperature is over-high.
Description
Technical Field
The utility model belongs to the technical field of amplifiers, and particularly relates to an ultra-short wave broadband power amplifier with an over-temperature protection function.
Background
When the existing ultra-short wave broadband power amplifier is tested, heat release is large, heat is dissipated only through an external heat dissipating device, sufficient heat dissipation cannot be guaranteed, the ultra-short wave broadband power amplifier still can be damaged, and the ultra-short wave broadband power amplifier can be damaged after working for a plurality of hours;
therefore, an ultra-short wave broadband power amplifier with an over-temperature protection function needs to be designed, and the ultra-short wave broadband power amplifier is protected when the temperature is over-high, so that the power amplifier cannot be damaged.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an ultra-short wave broadband power amplifier with an over-temperature protection function.
The utility model provides an ultrashort wave broadband power amplifier with an over-temperature protection function, which is characterized by comprising a front-stage power amplifier circuit, wherein the front-stage power amplifier circuit is provided with a push-stage power amplifier circuit, the output end of the front-stage power amplifier circuit is connected with the input end of the push-stage power amplifier circuit, the push-stage power amplifier circuit is provided with a final-stage power amplifier circuit, the output end of the push-stage power amplifier circuit is connected with the input end of the final-stage power amplifier circuit, the push-stage power amplifier circuit is provided with a power supply circuit, the output end of the power supply circuit is respectively connected with the input ends of the front-stage power amplifier circuit, the push-stage power amplifier circuit and the final-stage power amplifier circuit, the power supply circuit is provided with a temperature protection circuit, and the output end of the temperature protection circuit is connected with the input end of the power supply circuit and is used for protecting the power amplifier through a set temperature;
the radio frequency signal is sent to a front-stage power amplification circuit for signal amplification, and is further amplified by a push-stage power amplification circuit, and after the required power is input by a final-stage power amplification circuit, the radio frequency signal is sent to the final-stage power amplification circuit for power amplification and is transmitted and output by an external antenna;
the temperature protection circuit is connected with the power supply circuit and is used for protecting the power amplifier from being damaged through the set temperature;
the power supply circuit is connected with the front-stage power amplification circuit, the push-stage power amplification circuit and the final-stage power amplification circuit;
compared with the prior art, the utility model has the beneficial effects that:
the ultra-short wave broadband power amplifier with the over-temperature protection function is suitable for military and civil equipment such as an airborne, a carrier-borne, a vehicle-borne and a missile-borne device, and the ultra-short wave broadband power amplifier is protected when the temperature is over-high, so that the power amplifier cannot be damaged.
Drawings
The following drawings are illustrative of the utility model and are not intended to limit the scope of the utility model, in which:
fig. 1: the utility model is a connection block diagram;
fig. 2: the microwave channel and power supply connection block diagram of the utility model;
fig. 3: a circuit diagram of the present utility model;
in the figure: 1-front stage power amplifier circuit, 2-push stage power amplifier circuit, 3-final stage power amplifier circuit, 4-power supply circuit, 5-temperature protection circuit.
Detailed Description
The present utility model will be further described in detail with reference to the following specific examples, which are given by way of illustration, in order to make the objects, technical solutions, design methods and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, an ultra-short wave broadband power amplifier with an over-temperature protection function of the present utility model,
the utility model relates to an ultra-short wave broadband power amplifier with an over-temperature protection function, which comprises a front-stage power amplifier circuit 1, wherein the front-stage power amplifier circuit 1 is provided with a push-stage power amplifier circuit 2, the output end of the front-stage power amplifier circuit 1 is connected with the input end of the push-stage power amplifier circuit 2, the push-stage power amplifier circuit 2 is provided with a final-stage power amplifier circuit 3, the output end of the push-stage power amplifier circuit 2 is connected with the input end of the final-stage power amplifier circuit 3, the push-stage power amplifier circuit 2 is provided with a power supply circuit 4, the output end of the power supply circuit 4 is respectively connected with the input ends of the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2 and the final-stage power amplifier circuit 3, the power supply circuit 4 is provided with a temperature protection circuit 5, and the output end of the temperature protection circuit 5 is connected with the input end of the power supply circuit 4 for protecting the power amplifier through a set temperature;
the radio frequency signal is sent to a front-stage power amplification circuit 1 for signal amplification, and is further amplified by a push-stage power amplification circuit 2, and after the required power is input by a final-stage power amplification circuit 3, the radio frequency signal is sent to the final-stage power amplification circuit 3 for power amplification and is transmitted and output by an external antenna;
the model and connection relation of each module in the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2, the final-stage power amplifier circuit 3, the power supply circuit 4 and the temperature protection circuit 5 are shown in figure 2; the connection methods of the modules of the front-stage power amplification circuit 1, the push-stage power amplification circuit 2, the final-stage power amplification circuit 3, the power supply circuit 4 and the temperature protection circuit 5 are connected according to the corresponding standard connection methods respectively, as shown in fig. 3;
the temperature protection circuit 5 comprises a plurality of NAND gate modules and a coupler module, wherein the plurality of NAND gate modules comprise a first NAND gate module, a second NAND gate module and a third NAND gate module, the first NAND gate module and the second NAND gate module which are arranged in parallel are connected in series with the third NAND gate module, the third NAND gate module is connected in series with the coupler module, and the coupler module is connected with the power circuit 4; and the power supply circuit 4 is connected with the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2 and the final-stage power amplifier circuit 3 and is used for providing power for the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2 and the final-stage power amplifier circuit 3,
the temperature protection circuit 5 is connected with the power circuit 4 and is used for protecting the power amplifier from being damaged through the set temperature; the temperature protection circuit 5 consists of a NAND gate circuit, when the temperature of the amplifying circuit exceeds 90 ℃ plus 5 ℃ after the radio frequency signal enters the amplifying circuit, the power supply can automatically generate long protection when the temperature in the amplifying circuit is abnormal, the temperature protection circuit 5 is started, no output is controlled to +28V, the temperature is recovered to be normal +60 ℃, normal power is output, and the power amplifier is protected from being damaged due to overhigh temperature;
the power supply circuit 4 is connected with the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2 and the final-stage power amplifier circuit 3;
power supply circuit 4: DC-DC conversion is realized, and 28V and + -5V power conversion is realized according to module functions and device requirements; the power circuit 4 provides required working power for the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2, the final-stage power amplifier circuit 3 and the temperature protection circuit 5 respectively, 5V voltage in the power circuit 4 is provided for the front-stage power amplifier circuit 1, the power circuit 4 provides 28V voltage for the front-stage power amplifier circuit 1, two standard direct current voltages of +/-5V are used in the system, and required working power is provided for each module respectively; the power circuit 4 adopts a model UP6109 power chip to generate 5V direct current voltage, and the voltage stabilizing chip has wide voltage input (18V-36V) to ensure high stability of +5V;
the working process comprises the following steps: the ultra-short wave broadband power amplifier with the over-temperature protection function comprises a front-stage power amplifier circuit 1, a push-stage power amplifier circuit 2, a final-stage power amplifier circuit 3, a power supply circuit 4 and a temperature protection circuit 5, wherein radio frequency signals are sent to the front-stage power amplifier circuit 1 for signal amplification, then are further amplified by the push-stage power amplifier circuit 2, and are sent to the final-stage power amplifier circuit 3 for power amplification after required power is input by the final-stage power amplifier circuit 3, and are emitted and output by an external antenna;
the temperature protection circuit 5 is connected with the power circuit 4, after a radio frequency signal enters the amplifying circuit, when the temperature of the amplifying circuit exceeds 90 ℃ plus 5 ℃, the power supply can automatically generate long protection when the temperature in the amplifier is abnormal, the temperature protection circuit 5 is started, no output is controlled to +28V, when the temperature is recovered to be normal +60 ℃, normal power is output, and the power amplifier is protected from being damaged due to overhigh temperature;
the power supply circuit 4 is connected with the front-stage power amplifier circuit 1, the push-stage power amplifier circuit 2 and the final-stage power amplifier circuit 3;
after the radio frequency input signal passes through the front-stage power amplifier 1, the radio frequency input signal is sent to the final-stage power amplifier 3 for power output after passing through the push- stage power amplifier 2, 5V voltage in the power supply circuit 4 is supplied to the front- stage power amplifier 1, 5V voltage in the power supply circuit 4 is supplied to grid voltages of the push-stage power amplifier 2 and the final-stage power amplifier 3, +28V voltage in the power supply circuit 4 is supplied to drain voltages of the push-stage power amplifier 2 and the final-stage power amplifier 3, when no load or antenna is output, the reflected signal is detected through detection and coupling detection, a large signal is detected, the power supply circuit 4 enables +28V to be not output, when the temperature exceeds 90 ℃ +5 ℃, the temperature protection circuit 5 is started, +28V is controlled to be not output, and when the temperature is recovered to be normal +60deg.C, the output power is normal.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (1)
1. An ultra-short wave broadband power amplifier with an over-temperature protection function is characterized by comprising a front-stage power amplifier circuit (1),
the power amplifier is characterized in that the front-stage power amplifier circuit (1) is provided with a push-stage power amplifier circuit (2), the output end of the front-stage power amplifier circuit (1) is connected with the input end of the push-stage power amplifier circuit (2), the push-stage power amplifier circuit (2) is provided with a final-stage power amplifier circuit (3), the output end of the push-stage power amplifier circuit (2) is connected with the input end of the final-stage power amplifier circuit (3), the push-stage power amplifier circuit (2) is provided with a power supply circuit (4), the output ends of the power supply circuit (4) are respectively connected with the input ends of the front-stage power amplifier circuit (1), the push-stage power amplifier circuit (2) and the final-stage power amplifier circuit (3), the power supply circuit (4) is provided with a temperature protection circuit (5), and the output end of the temperature protection circuit (5) is connected with the input end of the power supply circuit (4) for protecting the power amplifier through a set temperature;
the temperature protection circuit (5) comprises a plurality of NAND gate modules and a coupler module, wherein the NAND gate modules comprise a first NAND gate module, a second NAND gate module and a third NAND gate module, the first NAND gate module and the second NAND gate module which are arranged in parallel are connected with the third NAND gate module in series, the third NAND gate module is connected with the coupler module in series, and the coupler module is connected with the power circuit (4);
the radio frequency signal is sent into a front-stage power amplification circuit (1) for signal amplification, and is further amplified by a push-stage power amplification circuit (2), and after the required power input by a final-stage power amplification circuit (3) is reached, the radio frequency signal is sent into the final-stage power amplification circuit (3) for power amplification and is transmitted and output by an external antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222558812.0U CN219164531U (en) | 2022-09-27 | 2022-09-27 | Ultrashort wave broadband power amplifier with over-temperature protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222558812.0U CN219164531U (en) | 2022-09-27 | 2022-09-27 | Ultrashort wave broadband power amplifier with over-temperature protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219164531U true CN219164531U (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222558812.0U Active CN219164531U (en) | 2022-09-27 | 2022-09-27 | Ultrashort wave broadband power amplifier with over-temperature protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219164531U (en) |
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2022
- 2022-09-27 CN CN202222558812.0U patent/CN219164531U/en active Active
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