CN205725678U - A kind of alternating current circuit carrier signal attenuator circuit - Google Patents
A kind of alternating current circuit carrier signal attenuator circuit Download PDFInfo
- Publication number
- CN205725678U CN205725678U CN201620601605.0U CN201620601605U CN205725678U CN 205725678 U CN205725678 U CN 205725678U CN 201620601605 U CN201620601605 U CN 201620601605U CN 205725678 U CN205725678 U CN 205725678U
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- carrier wave
- alternating current
- inductance
- carrier
- carrier signal
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Abstract
The utility model discloses a kind of alternating current circuit carrier signal attenuator circuit, it includes exchange front end carrier wave coupling network, the input termination alternating current 220V power supply of described exchange front end carrier wave coupling network, exchange front end carrier wave coupling network is connected with the input of carrier wave impedance matching network, and the output of carrier wave impedance matching network is connected with carrier wave perception interface load；Solve in prior art and be joined directly together between the emulation of laboratory power line carrier and checking employing concentrator and ammeter, increase ammeter quantity and 220V cable coiling length builds test environment, the relaying degree of depth is extremely difficult to 3 grades, the a set of carrier path of difficulty assessment cannot be used by the quality of organization algorithm and the attenuator using the carrier signal pad design based on " main line " to exist in alternating current circuit, is therefore difficult to realize in the lab for technical problems such as the simulation of carrier networking system and emulation.
Description
Technical field
The utility model belongs to power line communications test art field, particularly relates to a kind of alternating current circuit carrier signal
Attenuator circuit.
Background technology
The power line carrier emulation of existing laboratory and checking are by being joined directly together between concentrator and ammeter, increasing ammeter
Quantity and 220V cable coiling length build test environment, and the relaying degree of depth is extremely difficult to 3 grades, therefore, in test process, just
It is difficult to a set of carrier path of assessment by the quality of organization algorithm.In existing laboratory, also has a kind of carrier signal based on " main line "
Pad design, so-called main line does not has alternating voltage exactly, and alternating current 220V is isolated by isolator.Such problem is to need isolation
Device, this circuit poor universality and there is limitation.For example in the test of actual meter group Network Communication, ammeter needs 220V exchange to supply
Electricity, but attenuator cannot use in alternating current circuit, is therefore difficult to realize and carries out mould for carrier networking system in the lab
Fit emulation.
Utility model content: the technical problems to be solved in the utility model: the carrier signal decay of a kind of alternating current circuit is provided
Device circuit, uses direct phase between concentrator and ammeter to solve the emulation of laboratory power line carrier and checking in prior art
Even, increasing ammeter quantity and 220V cable coiling length building test environment, the relaying degree of depth is extremely difficult to 3 grades, difficult assessment one
Set carrier path cannot by the quality of organization algorithm and the attenuator using the carrier signal pad design based on " main line " to exist
Alternating current circuit uses, is therefore difficult to realize and asks for technology such as the simulation of carrier networking system and emulation in the lab
Topic.
Technical solutions of the utility model:
A kind of alternating current circuit carrier signal attenuator circuit, it includes exchange front end carrier wave coupling network, before described exchange
The input termination alternating current 220V power supply of end carrier wave coupling network, exchange front end carrier wave coupling network and carrier wave impedance matching network
Input connects, and the output of carrier wave impedance matching network is connected with carrier wave perception interface load.
Described exchange front end carrier wave coupling network includes that inductance L1 and L2, inductance L1 and L2 and electric capacity C1 one group of LC of composition is humorous
Vibrating network, is connected coupling electrical power line carrier signal with alternating current 220V power supply.
Inductance L1 and L2 inductance value are 100uH, and electric capacity C1 is 1uf.
Described carrier wave impedance matching network includes the symmetrical pi type filter of coupling coil T1 and a group, coupling coil T1 with
Pi type filter connects.
Described pi type filter includes that electric capacity C2, C3, C5 and C6 and inductance L3 and L4 have two group 3 of six device compositions altogether
Rank Butterworth LPF and safety capacitor C4 and C7, the value of electric capacity C2, C3, C5 and C6 is 1uf, safety capacitor C4
Being X1/275VAC with C7, the value of inductance L3 and L4 is 100uH, and coupling coil T1 is 1mH.
Carrier wave perception interface load includes that inductance L5 and L6, inductance L5 are connected on live wire, and inductance L6 is connected on zero line.
The inductance value of inductance L5 and L6 is 100uH.
The utility model beneficial effect:
The utility model exchange front end carrier wave coupling network uses 3 devices, and design natural attenuation value is-0.3dB；Carrier wave
Impedance matching network design pass band is 9kHz ~ 490kHz, and characteristic impedance is 1 Ω；Carrier wave perception interface load uses two
100uH inductance, as inductive load and filter circuit, realizes alternating current circuit carrier signal attenuator circuit, the utility model electricity
Line structure is simple, equipment volume is less, attenuation factor is adjustable, facilitates user for electricity consumptions such as ammeters in 220V alternating current circuit
The carrier networking of equipment carries out " relaying " networking simulating and checking more, solves power line carrier emulation in laboratory in prior art
With checking uses and is joined directly together between concentrator and ammeter, increase ammeter quantity and 220V cable coiling length builds test wrapper
Border, the relaying degree of depth is extremely difficult to 3 grades, and a set of carrier path of difficult assessment is by the quality of organization algorithm and the carrier wave using based on " main line "
The attenuator that signal attenuator design exists cannot use in alternating current circuit, is therefore difficult to realize in the lab for carrier wave
The technical problems such as group network system simulation and emulation.
Brief description:
Fig. 1 is the utility model structural representation.
Detailed description of the invention:
A kind of alternating current circuit carrier signal attenuator circuit, it includes exchange front end carrier wave coupling network, before described exchange
The input termination alternating current 220V power supply of end carrier wave coupling network, exchange front end carrier wave coupling network and carrier wave impedance matching network
Input connects, and the output of carrier wave impedance matching network is connected with carrier wave perception interface load.
Described exchange front end carrier wave coupling network includes that inductance L1 and L2, inductance L1 and L2 and electric capacity C1 one group of LC of composition is humorous
Vibrating network, is connected coupling electrical power line carrier signal with alternating current 220V power supply.Inductance L1 and L2 inductance value are 100uH, and electric capacity C1 is
1uf, can realize that coupling network natural attenuation value is-0.3dB.
Described carrier wave impedance matching network includes the symmetrical pi type filter of coupling coil T1 and a group, coupling coil T1 with
Pi type filter connects.
Described pi type filter includes that electric capacity C2, C3, C5 and C6 and inductance L3 and L4 have two group 3 of six device compositions altogether
Rank Butterworth LPF and safety capacitor C4 and C7, the value of electric capacity C2, C3, C5 and C6 is 1uf, safety capacitor C4
Being X1/275VAC with C7, the value of inductance L3 and L4 is 100uH, and coupling coil T1 is 1mH, 250kHz.
Carrier wave perception interface load includes that inductance L5 and L6, inductance L5 are connected on live wire, and inductance L6 is connected on zero line,
The inductance value of inductance L5 and L6 is 100uH.Inductance l5 and L6 is as carrier wave coupled end interface inductive load, simultaneously as signal
The filtering of simple filter inductance circuit realiration signal.
Claims (7)
1. an alternating current circuit carrier signal attenuator circuit, it includes exchange front end carrier wave coupling network, it is characterised in that: institute
State the input termination alternating current 220V power supply of exchange front end carrier wave coupling network, exchange front end carrier wave coupling network and carrier wave impedance
The input of distribution network connects, and the output of carrier wave impedance matching network is connected with carrier wave perception interface load.
2. a kind of alternating current circuit according to claim 1 carrier signal attenuator circuit, it is characterised in that: before described exchange
End carrier wave coupling network includes inductance L1 and L2, inductance L1 and L2 and electric capacity C1 one group of LC resonant network of composition, with alternating current 220V
Power supply connects coupling electrical power line carrier signal.
3. a kind of alternating current circuit according to claim 2 carrier signal attenuator circuit, it is characterised in that: inductance L1 and L2
Inductance value is 100uH, and electric capacity C1 is 1uf.
4. a kind of alternating current circuit according to claim 1 carrier signal attenuator circuit, it is characterised in that: described carrier wave hinders
Anti-matching network includes coupling coil T1 and one group of symmetrical pi type filter, and coupling coil T1 is connected with pi type filter.
5. a kind of alternating current circuit according to claim 4 carrier signal attenuator circuit, it is characterised in that: described π type is filtered
Ripple device includes that electric capacity C2, C3, C5 and C6 and inductance L3 and L4 have two group of 3 rank Butterworth low pass ripple of six device compositions altogether
Device and safety capacitor C4 and C7, the value of electric capacity C2, C3, C5 and C6 is 1uf, and safety capacitor C4 and C7 is X1/275VAC, electricity
The value of sense L3 and L4 is 100uH, and coupling coil T1 is 1mH.
6. a kind of alternating current circuit according to claim 1 carrier signal attenuator circuit, it is characterised in that: carrier wave perception connects
Mouth load includes that inductance L5 and L6, inductance L5 are connected on live wire, and inductance L6 is connected on zero line.
7. a kind of alternating current circuit according to claim 6 carrier signal attenuator circuit, it is characterised in that: inductance L5 and L6
Inductance value be 100uH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601605.0U CN205725678U (en) | 2016-06-20 | 2016-06-20 | A kind of alternating current circuit carrier signal attenuator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601605.0U CN205725678U (en) | 2016-06-20 | 2016-06-20 | A kind of alternating current circuit carrier signal attenuator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205725678U true CN205725678U (en) | 2016-11-23 |
Family
ID=57306429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620601605.0U Withdrawn - After Issue CN205725678U (en) | 2016-06-20 | 2016-06-20 | A kind of alternating current circuit carrier signal attenuator circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205725678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897213A (en) * | 2016-06-20 | 2016-08-24 | 贵州电网有限责任公司电力科学研究院 | Circuit structure of carrier signal attenuator of alternating current circuit |
| CN113114531A (en) * | 2021-04-06 | 2021-07-13 | 贵州电网有限责任公司 | Laboratory carrier communication test method |
-
2016
- 2016-06-20 CN CN201620601605.0U patent/CN205725678U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897213A (en) * | 2016-06-20 | 2016-08-24 | 贵州电网有限责任公司电力科学研究院 | Circuit structure of carrier signal attenuator of alternating current circuit |
| CN105897213B (en) * | 2016-06-20 | 2018-09-07 | 贵州电网有限责任公司电力科学研究院 | A kind of alternating current circuit carrier signal attenuator circuit structure |
| CN113114531A (en) * | 2021-04-06 | 2021-07-13 | 贵州电网有限责任公司 | Laboratory carrier communication test method |
| CN113114531B (en) * | 2021-04-06 | 2023-05-02 | 贵州电网有限责任公司 | Laboratory carrier communication test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180907 |