CN203071930U - Power line broadband communication signal attenuator - Google Patents
Power line broadband communication signal attenuator Download PDFInfo
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- CN203071930U CN203071930U CN 201220688573 CN201220688573U CN203071930U CN 203071930 U CN203071930 U CN 203071930U CN 201220688573 CN201220688573 CN 201220688573 CN 201220688573 U CN201220688573 U CN 201220688573U CN 203071930 U CN203071930 U CN 203071930U
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- signal
- power line
- attenuation
- network module
- frequency
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Abstract
Disclosed in the utility model is a power line broadband communication signal attenuator that comprises a first signal coupler, at least one high-frequency isolation network module with low-frequency signal passing and high-frequency signal stopping and at least one attenuation network module with low-frequency signal stopping and high-frequency signal passing. The attenuation network module is used for carrying out attenuation on the high-frequency signal. The high-frequency isolation network module and the attenuation network module are connected in parallel and the output terminals of the two modules are simultaneously connected to the first signal coupler. According to the utility model, the current and the power line broadband carrier signal are separated; the power line broadband carrier signal is attenuated; and then the current and the attenuated signal are coupled. Therefore, during the attenuation process of the power line broadband carrier signal, while the normal electrification of the power line is ensured, the attenuation of the broadband carrier signal of the power line can simultaneously realized and the current is also stable, so that all electrical devices can work stably in the whole experiment network and unnecessary problems that the environment can not be simulated actually due to abnormal power supplying and the like can be solved.
Description
Technical field
The utility model relates to the signal attenuator field, relates in particular to a kind of broadband power line communication signal attenuator.
Background technology
In the Experimental Network of simulation power line communication, usually need the power line bandwidth carrier signal attenuation of artificial site, long-distance transmissions with analog communication signal, but prior art is in analog electrical line of force signal attenuation process, the power line that invariably accompanies can not be powered normally, causes occurring in the simulation process some unnecessary problems.
The utility model content
The utility model is in order to solve in the Experimental Network of simulation power line communication, when guaranteeing the power line normal power-up, can also decay to the power line bandwidth carrier signal of communication on the power line, a kind of broadband power line communication signal attenuator is provided, comprises the attenuation network module to the high-frequency signal decay of high-frequency isolation mixed-media network modules mixed-media and the logical high-frequency signal of at least one resistance low frequency signal of first signal coupler, at least one logical low frequency signal resistance high-frequency signal; Described high-frequency isolation mixed-media network modules mixed-media is connected on described first signal coupler simultaneously with output after the attenuation network module is in parallel.
Wherein, described broadband power line communication signal attenuator comprises a housing, and housing is provided with the knob of conditioning signal pad value.
Wherein, described housing is provided with adjusting by the knob of current maxima.
Wherein, described broadband power line communication signal attenuator also comprises one for the secondary signal coupler that external signal is coupled on the described attenuation network module.
The beneficial effects of the utility model are: be different from the broadband power line communication signal attenuator of prior art, also will play the alive effect of power line in deamplification; The utility model is to be provided with high-frequency isolation mixed-media network modules mixed-media and attenuation network module, two module parallel connections separate electric current and power line bandwidth carrier signal, again power line bandwidth carrier signal is decayed, and then be coupled to together, like this in the broadband power line communication signal attenuation process, when guaranteeing the power line normal power-up, can also decay to the bandwidth carrier signal on the power line, current stabilization, make each electrical equipment steady operation in the whole Experimental Network, not can because of undesired power supply cause can't the real simulation environment etc. unnecessary problem.
Description of drawings
Fig. 1 is the structural representation of broadband power line communication signal attenuator.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1, the utility model provides a kind of broadband power line communication signal attenuator, comprises the high-frequency isolation mixed-media network modules mixed-media of at least one logical low frequency signal resistance high-frequency signal, attenuation network module and first signal coupler to the high-frequency signal decay of the logical high-frequency signal of at least one resistance low frequency signal; Described high-frequency isolation mixed-media network modules mixed-media is connected on described first signal coupler simultaneously with output after the attenuation network module is in parallel.His operation principle is: outside broadband power line communication signal, be that the PLC carrier signal is at first on a main line, the main line comprises live wire and zero line, the PLC carrier signal is divided into two branch roads after entering the broadband power line communication signal attenuator then, wherein a branch road is the high-frequency isolation mixed-media network modules mixed-media, be that the high-frequency isolation branch of a network that allows electric current to pass through is formed, another branch road is to enter the attenuation network module, the attenuation network module is the attenuation network branch road that only allows the high-frequency signal decay that the PLC carrier signal passes through, two branch roads are connected on first signal coupler then, first signal coupler is coupled the signal on two roads, then output.Be different from the broadband power line communication signal attenuator of prior art, in deamplification, also will play the alive effect of power line; The utility model is high-frequency isolation mixed-media network modules mixed-media and the attenuation network module that is provided with, two module parallel connections separate electric current and power line bandwidth carrier signal, again power line bandwidth carrier signal is decayed, be coupled to together then, like this in the broadband power line communication signal attenuation process, when guaranteeing the power line normal power-up, can also decay to the bandwidth carrier signal on the power line, current stabilization, make each electrical equipment steady operation in the whole Experimental Network, not can because of undesired power supply cause can't the real simulation environment etc. unnecessary problem.Certainly the pad value of the attenuation network module of broadband power line communication signal attenuator in the present embodiment can change, benefit be the deamplification value can regulate more accurate.
In the present embodiment, described broadband power line communication signal attenuator also comprises one for the secondary signal coupler that external signal is coupled on the described attenuation network module, described attenuation network module and secondary signal coupler are formed a coupling attenuation network, that is to say that outside signal is connected on the secondary signal coupler, the secondary signal coupler is coupled to external signal on the attenuation network module, can effectively adjust the broadband power line communication signal like this, carry out the decay of signal then, make Experimental Network more true.
In the present embodiment, described broadband power line communication signal attenuator comprises a housing, and housing is provided with the knob of conditioning signal pad value, is used for regulating the size of pad value, and the range of set value of corresponding signal attenuation value is that 0dB is to 100dB; Same, described housing is provided with adjusting by the knob of current maxima, corresponding, the range of set value of current maxima is that 0A is to 50A.These knobs are exactly the effect of playing adjusting, also can be other forms of adjusting keys such as button.The current maxima of passing through that is to say the broadband power line communication signal attenuator can be set and regulate, make it to be applicable to various operational environments, equally, the pad value of signal also can be set a designated value for, can simulate the pad value of various situations like this, in the laboratory, be widely used.
Equally, in the above-described embodiments, described broadband power line communication signal attenuator pass through signal frequency range be 1MHz to 100MHz, and the frequency range of broadband power line communication signal is general just in this scope, that is to say that the utility model can do the experiment of any frequency band.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (4)
1. broadband power line communication signal attenuator, it is characterized in that, comprise the attenuation network module to the high-frequency signal decay of high-frequency isolation mixed-media network modules mixed-media and the logical high-frequency signal of at least one resistance low frequency signal of first signal coupler, at least one logical low frequency signal resistance high-frequency signal;
Described high-frequency isolation mixed-media network modules mixed-media is connected on described first signal coupler simultaneously with output after the attenuation network module is in parallel.
2. broadband power line communication signal attenuator according to claim 1 is characterized in that, described broadband power line communication signal attenuator comprises a housing, and housing is provided with the knob of conditioning signal pad value.
3. broadband power line communication signal attenuator according to claim 2 is characterized in that, described housing is provided with adjusting by the knob of current maxima.
4. broadband power line communication signal attenuator according to claim 1 is characterized in that, described broadband power line communication signal attenuator also comprises one for the secondary signal coupler that external signal is coupled on the described attenuation network module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688573 CN203071930U (en) | 2012-12-13 | 2012-12-13 | Power line broadband communication signal attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688573 CN203071930U (en) | 2012-12-13 | 2012-12-13 | Power line broadband communication signal attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071930U true CN203071930U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220688573 Expired - Lifetime CN203071930U (en) | 2012-12-13 | 2012-12-13 | Power line broadband communication signal attenuator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905089A (en) * | 2014-04-12 | 2014-07-02 | 盛吉高科（北京）科技有限公司 | Circuit of power line carrier signal adjustable attenuator |
| CN104022800A (en) * | 2014-06-17 | 2014-09-03 | 国家电网公司 | Power line carrier channel analog simulation system |
| CN104092480A (en) * | 2014-04-18 | 2014-10-08 | 钜泉光电科技(上海)股份有限公司 | Power line signal attenuation degree adjusting system |
| CN110932761A (en) * | 2019-12-12 | 2020-03-27 | 国网湖北省电力有限公司计量中心 | Power line broadband carrier attenuator |
-
2012
- 2012-12-13 CN CN 201220688573 patent/CN203071930U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905089A (en) * | 2014-04-12 | 2014-07-02 | 盛吉高科（北京）科技有限公司 | Circuit of power line carrier signal adjustable attenuator |
| CN104092480A (en) * | 2014-04-18 | 2014-10-08 | 钜泉光电科技(上海)股份有限公司 | Power line signal attenuation degree adjusting system |
| CN104092480B (en) * | 2014-04-18 | 2017-01-11 | 钜泉光电科技(上海)股份有限公司 | Power line signal attenuation degree adjusting system |
| CN104022800A (en) * | 2014-06-17 | 2014-09-03 | 国家电网公司 | Power line carrier channel analog simulation system |
| CN110932761A (en) * | 2019-12-12 | 2020-03-27 | 国网湖北省电力有限公司计量中心 | Power line broadband carrier attenuator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |