CN203193615U - TCAS transmitter capable of realizing whisper calling function with lower-power consumption - Google Patents
TCAS transmitter capable of realizing whisper calling function with lower-power consumption Download PDFInfo
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- CN203193615U CN203193615U CN 201320160931 CN201320160931U CN203193615U CN 203193615 U CN203193615 U CN 203193615U CN 201320160931 CN201320160931 CN 201320160931 CN 201320160931 U CN201320160931 U CN 201320160931U CN 203193615 U CN203193615 U CN 203193615U
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Abstract
The utility model discloses a TCAS transmitter capable of realizing a whisper calling function with lower-power consumption comprising a modulation source, a power amplifier, and an integrated numerical control attenuation device. A signal output end of the modulation source is connected with a signal input end of the integrated numerical control attenuation device, and a signal output end of the integrated numerical control attenuation device is connected with a signal input end of the power amplifier. The TCAS transmitter is advantageous in that the input end of the power amplifier is connected with the low-power integrated numerical control attenuation device, and the function of the traditional TCAS transmitter of connecting the large-power integrated numerical control attenuation device to the output end of the power amplifier can be realized with the low voltage and the low power consumption, therefore the power consumption of the TCAS transmitter can be reduced obviously, the circuit structure of the TCAS transmitter can be simplified, the size and the weight can be reduced, and the reliability can be improved.
Description
Technical field
The utility model relates to the TCAS transmitter that a kind of low-power consumption realizes little sound call function
Background technology
TCAS is the abbreviation of the air traffic warning CAS in the air traffic control system, and the TCAS transmitter is air traffic warning CAS transmitter.The mode that is used in the existing TCAS transmitter realizing little sound call function is for providing radiofrequency signal by modulation source earlier, and the employing power amplifier adopts the high-power numerical control attenuator that signal is carried out power attenuation after signal power is amplified again.There is following defective in this mode: (1) is because the high-power numerical control attenuator will be introduced the Insertion Loss of 3dB, cause power amplifier output must increase power output, it is 800W that the TCAS transmitter requires power output, power amplifier output is necessary for 1600W, the power consumption that increases is the consumption of high-power numerical control attenuator, makes TCAS transmitter power consumption height, efficient low; (2) because the high-power numerical control attenuator is to adopt many (more than 10) separating high-power PIN pipe to realize attenuation function, need higher negative voltage (80V～-150V) and complicated PIN tube drive circuit, cause TCAS transmitter circuitry complex structure, volume, weight increase, and reliability reduces.
The utility model content
The purpose of this utility model provides a kind of low-power consumption to realize the TCAS transmitter of little sound call function with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Low-power consumption described in the utility model realizes the TCAS transmitter of little sound call function, comprise modulation source, power amplifier and integrated numerical-control attenuator, the signal output part of described modulation source is connected with the signal input part of described integrated numerical-control attenuator, and the signal output part of described integrated numerical-control attenuator is connected with the signal input part of described power amplifier.
Further, described TCAS transmitter also comprises the little sound call controller of controlled sign indicating number control, and described integrated numerical-control attenuator is two of series connection mutually, and the degree of decay of two described integrated numerical-control attenuators is by the control of described little sound call controller.
The beneficial effects of the utility model are:
The utility model connects low power integrated numerical-control attenuator by the input at power amplifier, realized that traditional TCAS transmitter connects the function of powerful numerical-control attenuator at the output of power amplifier, only need low-voltage, low-power consumption to realize, significantly reduced the power consumption of TCAS transmitter, and simplified the circuit structure of TCAS transmitter, reduce volume and weight, improved reliability.
Description of drawings
Fig. 1 is the circuit block diagram that low-power consumption described in the utility model realizes the TCAS transmitter of little sound call function.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, low-power consumption described in the utility model realizes the TCAS transmitter of little sound call function, comprise modulation source, power amplifier, integrated numerical-control attenuator and little sound call controller, the signal output part of modulation source is connected with the signal input part of integrated numerical-control attenuator, the signal output part of integrated numerical-control attenuator is connected with the signal input part of power amplifier, and the signal output part of power amplifier is connected with the signal input part of loud speaker (not shown) realizes little sound calling; The integrated numerical-control attenuator is two, the i.e. first integrated numerical-control attenuator and the second integrated numerical-control attenuator, the little sound of control input end input of little sound call controller is called out control code, and the degree of decay of the first integrated numerical-control attenuator and the second integrated numerical-control attenuator is controlled according to little sound calling sequence by little sound call controller.Particularly, it is the attenuator of " HMC273 " that the integrated numerical-control attenuator adopts model, and its working power is the 5V DC power supply.
As shown in Figure 1, the radiofrequency signal (output signal power is 5dBm) that modulation source produces is at first carried out signal attenuation through the integrated numerical-control attenuator, because this moment, signal power was not amplified as yet, can finish signal attenuation so only need the integrated numerical-control attenuator of low power consumption rate, signal after the decay carries out power amplification through power amplifier (800W), is transferred to the loud speaker (not shown) then and sends little sound calling.The first integrated numerical-control attenuator and the second integrated numerical-control attenuator have only the realization decay that puts into operation, and the integrated numerical-control attenuator that puts into operation is master fader, and another is for being equipped with attenuator, to improve functional reliability.
Adopting controller to control the degree of decay of two or more integrated numerical-control attenuators, thereby select part or all of numerical-control attenuator to put into operation to realize decay in various degree, is a kind of technological means of routine, does not repeat them here.
Claims (2)
1. a low-power consumption realizes the TCAS transmitter of little sound call function, comprise modulation source and power amplifier, it is characterized in that: also comprise the integrated numerical-control attenuator, the signal output part of described modulation source is connected with the signal input part of described integrated numerical-control attenuator, and the signal output part of described integrated numerical-control attenuator is connected with the signal input part of described power amplifier.
2. low-power consumption according to claim 1 realizes the TCAS transmitter of little sound call function, it is characterized in that: the little sound call controller that also comprises controlled sign indicating number control, described integrated numerical-control attenuator is two of series connection mutually, and the degree of decay of two described integrated numerical-control attenuators is by the control of described little sound call controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160931 CN203193615U (en) | 2013-04-02 | 2013-04-02 | TCAS transmitter capable of realizing whisper calling function with lower-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160931 CN203193615U (en) | 2013-04-02 | 2013-04-02 | TCAS transmitter capable of realizing whisper calling function with lower-power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193615U true CN203193615U (en) | 2013-09-11 |
Family
ID=49110439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160931 Expired - Fee Related CN203193615U (en) | 2013-04-02 | 2013-04-02 | TCAS transmitter capable of realizing whisper calling function with lower-power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267395A (en) * | 2014-09-29 | 2015-01-07 | 陕西宝成航空仪表有限责任公司 | Method for achieving C-mode low-voice calling of traffic collision avoidance system |
-
2013
- 2013-04-02 CN CN 201320160931 patent/CN203193615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267395A (en) * | 2014-09-29 | 2015-01-07 | 陕西宝成航空仪表有限责任公司 | Method for achieving C-mode low-voice calling of traffic collision avoidance system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 |