CN216391057U - Up-down converter - Google Patents
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- CN216391057U CN216391057U CN202123329017.6U CN202123329017U CN216391057U CN 216391057 U CN216391057 U CN 216391057U CN 202123329017 U CN202123329017 U CN 202123329017U CN 216391057 U CN216391057 U CN 216391057U
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Abstract
The utility model discloses an up-down converter, which comprises a signal input end and a signal output end, wherein the signal input end is connected with a signal processing module, the signal processing module is connected with a signal modulation module, the down-conversion module in the signal processing module is used for carrying out primary modulation on a signal to generate a modulation signal with a stray signal, the signal passes through a wave limiter to separate the modulation signal, the stray signal and a baseband signal, the stray signal is changed into an inverted stray signal through a signal inverter, the inverted stray signal is modulated through an up-conversion module to obtain a modulation signal with the inverted stray signal, the modulation signal with the stray signal and the modulation signal with the inverted stray signal are mixed and eliminated in the signal mixing module, after the elimination of the stray signal, the modulation separated through the wave limiter enters the signal modulation module to modulate a secondary signal, the efficiency of baseband signal frequency conversion is improved, and stray interference generated by a frequency converter is reduced.
Description
Technical Field
The utility model relates to the technical field of up-down converters, in particular to an up-down converter.
Background
The frequency converter is a power control device which applies frequency conversion technology and microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor, and mainly comprises a rectifying unit, a filtering unit, an inverting unit, a braking unit, a driving unit, a detecting unit and a microprocessing unit.
The characteristic of the up-down converter is that the mixing will be carried out after inputting the large signal and the small signal, the signal size of output depends on the small signal, the signal frequency of output is the sum or difference of two signal frequencies, can form the spurious interference when producing the output signal in the passband of the up-down converter, and this kind of in-band spurious interference can't be suppressed through the wave filter, if the in-band spurious interference is great, can influence the effect of signal output.
SUMMERY OF THE UTILITY MODEL
The utility model provides an up-converter and a down-converter, which can improve the frequency conversion efficiency of baseband signals and reduce impurities generated by the frequency converter
And (5) scattering interference.
The utility model is realized by the following technical scheme:
the utility model provides a down-converter, includes signal input part and signal output part, signal input part connects signal processing module, signal processing module connects signal modulation module, and signal modulation module connects the filter subassembly, and the filter subassembly connects the mixing module, the mixing module connects the amplification module, the amplification module connects signal output part.
Furthermore, the signal processing module comprises a down-conversion module, the down-conversion module is respectively connected with the first local oscillator module, the low-pass filter and the signal mixer, the low-pass filter is connected with the wave limiter, the wave limiter is connected with the signal phase inverter, the signal phase inverter is connected with the up-conversion module, and the up-conversion module is respectively connected with the second local oscillator module and the signal mixer.
Further, the signal input end is connected with a down-conversion module.
Further, the wave limiter is connected with the signal modulation module.
Further, the signal modulation module comprises a carrier generation module and a frequency modulation module.
Further, the mixing module comprises a low noise amplifier, a mixer and an attenuator.
Further, the amplifying module comprises an intermediate frequency amplifier.
The utility model has the beneficial effects that:
according to the up-down converter, signals are preliminarily modulated through a down-conversion module in a signal processing module to generate modulation signals with stray signals, the modulation signals, the stray signals and baseband signals are separated through a wave limiter, the stray signals are changed into reverse phase stray signals through a signal phase inverter, the reverse phase stray signals are modulated through an up-conversion module to obtain modulation signals with reverse phase stray signals, the modulation signals with the stray signals and the modulation signals with the reverse phase stray signals are mixed and eliminated in the signal mixing process, after the elimination of stray interference is completed, the modulation signals enter a signal modulation module through the modulation after the separation of the wave limiter to be modulated with secondary signals, the frequency conversion efficiency of the baseband signals is improved, and the stray interference generated by a frequency converter is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first structural block diagram of an up-converter and a down-converter according to the present invention;
fig. 2 is a block diagram of a structure of an up/down converter according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, an up-down converter includes a signal input terminal and a signal output terminal, the signal input terminal is connected to a signal processing module, the signal processing module is connected to a signal modulation module, the signal modulation module is connected to a filter assembly, the filter assembly is connected to a frequency mixing module, the frequency mixing module is connected to an amplification module, and the amplification module is connected to the signal output terminal.
Furthermore, the signal processing module comprises a down-conversion module, the down-conversion module is respectively connected with the first local oscillator module, the low-pass filter and the signal mixer, the low-pass filter is connected with the wave limiter, the wave limiter is connected with the signal phase inverter, the signal phase inverter is connected with the up-conversion module, and the up-conversion module is respectively connected with the second local oscillator module and the signal mixer.
Further, the signal input end is connected with a down-conversion module.
Further, the wave limiter is connected with the signal modulation module.
Further, the signal modulation module comprises a carrier generation module and a frequency modulation module.
Further, the mixing module comprises a low noise amplifier, a mixer and an attenuator.
Further, the amplifying module comprises an intermediate frequency amplifier.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a down-converter, includes signal input part and signal output part, its characterized in that, signal input part connects signal processing module, signal processing module connects signal modulation module, and signal modulation module connects the filter subassembly, and the filter subassembly connects the mixing module, the mixing module connects the amplification module, the signal output part is connected to the amplification module.
2. The up-down converter according to claim 1, wherein the signal processing module comprises a down-conversion module, the down-conversion module is respectively connected to the first local oscillation module, the low pass filter and the signal mixer, the low pass filter is connected to the wave limiter, the wave limiter is connected to the signal inverter, the signal inverter is connected to the up-conversion module, and the up-conversion module is respectively connected to the second local oscillation module and the signal mixer.
3. An up-down converter according to claim 2, wherein the signal input is connected to a down-conversion module.
4. An up-down converter according to claim 2, wherein the limiter is connected to the signal modulation block.
5. The up-down converter according to claim 2, wherein the signal modulation module comprises a carrier generation module and a frequency modulation module.
6. The up-down converter of claim 1, wherein the mixing module comprises a low noise amplifier, a mixer, and an attenuator.
7. The up-down converter of claim 1, wherein the amplification module comprises an intermediate frequency amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123329017.6U CN216391057U (en) | 2021-12-28 | 2021-12-28 | Up-down converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123329017.6U CN216391057U (en) | 2021-12-28 | 2021-12-28 | Up-down converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216391057U true CN216391057U (en) | 2022-04-26 |
Family
ID=81238515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123329017.6U Active CN216391057U (en) | 2021-12-28 | 2021-12-28 | Up-down converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216391057U (en) |
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2021
- 2021-12-28 CN CN202123329017.6U patent/CN216391057U/en active Active
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